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< a href = "preprocessor_8cc.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright 2010-2018 Google LLC< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > // Licensed under the Apache License, Version 2.0 (the " License" );< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > // you may not use this file except in compliance with the License.< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > // You may obtain a copy of the License at< / span > < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "comment" > // http://www.apache.org/licenses/LICENSE-2.0< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "comment" > // Unless required by applicable law or agreed to in writing, software< / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "comment" > // distributed under the License is distributed on an " AS IS" BASIS,< / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "comment" > // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.< / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "comment" > // See the License for the specific language governing permissions and< / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "comment" > // limitations under the License.< / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "preprocessor_8h.html" > ortools/glop/preprocessor.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include < limits> < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include " absl/strings/str_format.h" < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "revised__simplex_8h.html" > ortools/glop/revised_simplex.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "status_8h.html" > ortools/glop/status.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "lp__data__utils_8h.html" > ortools/lp_data/lp_data_utils.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "lp__types_8h.html" > ortools/lp_data/lp_types.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "lp__data_2lp__utils_8h.html" > ortools/lp_data/lp_utils.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "matrix__utils_8h.html" > ortools/lp_data/matrix_utils.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < span class = "keyword" > namespace < / span > < a class = "code" href = "namespaceoperations__research.html" > operations_research< / a > {< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "keyword" > namespace < / span > glop {< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < a class = "code" href = "namespaceutil.html#a1e2d5c05e25343bc8e4fbccce0000d51" > using ::util::Reverse< / a > ;< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < span class = "comment" > // Returns an interval as an human readable string for debugging.< / span > < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   std::string IntervalString(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lb, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > ub) {< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "keywordflow" > return< / span > absl::StrFormat(< span class = "stringliteral" > " [%g, %g]" < / span > , lb, ub);< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   }< / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "preprocessor" > #if defined(_MSC_VER)< / span > < / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "keywordtype" > double< / span > trunc(< span class = "keywordtype" > double< / span > d) { < span class = "keywordflow" > return< / span > d > 0 ? floor(d) : ceil(d); }< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < span class = "preprocessor" > #endif< / span > < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "comment" > // Preprocessor< / span > < / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
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< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a3611ef0bc3b3adfa06432f2659c535f7" > 45< / a > < / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a3611ef0bc3b3adfa06432f2659c535f7" > Preprocessor::Preprocessor< / a > (< span class = "keyword" > const< / span > GlopParameters* < a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > )< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   : status_(< a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9" > ProblemStatus< / a > ::INIT),< / div >
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< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   parameters_(*< a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > ),< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   in_mip_context_(false),< / div >
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< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   infinite_time_limit_(< a class = "code" href = "classoperations__research_1_1_time_limit.html" > TimeLimit< / a > ::Infinite()),< / div >
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< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   time_limit_(infinite_time_limit_.get()) {}< / div >
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< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a5c1cfa0469b831e367e8f9b6b463b5ae" > 51< / a > < / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a5c1cfa0469b831e367e8f9b6b463b5ae" > Preprocessor::~Preprocessor< / a > () {}< / div >
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< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "comment" > // MainLpPreprocessor< / span > < / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < / div >
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< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > < a class = "line" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > 57< / a > < / span >   < span class = "preprocessor" > #define RUN_PREPROCESSOR(name) \< / span > < / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "preprocessor" > RunAndPushIfRelevant(std::unique_ptr< Preprocessor> (new name(& parameters_)), \< / span > < / div >
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< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "preprocessor" > #name, time_limit_, lp)< / span > < / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < / div >
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< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_main_lp_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 61< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_main_lp_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > MainLpPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
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< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
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< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   initial_num_rows_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ();< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   initial_num_cols_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   initial_num_entries_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > ();< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .use_preprocessing()) {< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_shift_variable_bounds_preprocessor.html" > ShiftVariableBoundsPreprocessor< / a > );< / div >
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< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "comment" > // We run it a few times because running one preprocessor may allow another< / span > < / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "comment" > // one to remove more stuff.< / span > < / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > kMaxNumPasses = 20;< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < kMaxNumPasses; ++i) {< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > old_stack_size = preprocessors_.size();< / div >
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< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_fixed_variable_preprocessor.html" > FixedVariablePreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_preprocessor.html" > SingletonPreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor.html" > ForcingAndImpliedFreeConstraintPreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_free_constraint_preprocessor.html" > FreeConstraintPreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_implied_free_preprocessor.html" > ImpliedFreePreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html" > UnconstrainedVariablePreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_doubleton_free_column_preprocessor.html" > DoubletonFreeColumnPreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor.html" > DoubletonEqualityRowPreprocessor< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < span class = "comment" > // Abort early if none of the preprocessors did something. Technically< / span > < / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < span class = "comment" > // this is true if none of the preprocessors above needs postsolving,< / span > < / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < span class = "comment" > // which has exactly the same meaning for these particular preprocessors.< / span > < / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < span class = "keywordflow" > if< / span > (preprocessors_.size() == old_stack_size) {< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < span class = "comment" > // We use i here because the last pass did nothing.< / span > < / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   VLOG(1) < < < span class = "stringliteral" > " Reached fixed point after presolve pass #" < / span > < < i;< / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   }< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_empty_column_preprocessor.html" > EmptyColumnPreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_empty_constraint_preprocessor.html" > EmptyConstraintPreprocessor< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "comment" > // TODO(user): Run them in the loop above if the effect on the running time< / span > < / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   < span class = "comment" > // is good. This needs more investigation.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_proportional_column_preprocessor.html" > ProportionalColumnPreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_proportional_row_preprocessor.html" > ProportionalRowPreprocessor< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < span class = "comment" > // If DualizerPreprocessor was run, we need to do some extra preprocessing.< / span > < / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "comment" > // This is because it currently adds a lot of zero-cost singleton columns.< / span > < / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > old_stack_size = preprocessors_.size();< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   < / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < span class = "comment" > // TODO(user): We probably want to scale the costs before and after this< / span > < / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "comment" > // preprocessor so that the rhs/objective of the dual are with a good< / span > < / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < span class = "comment" > // magnitude.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html" > DualizerPreprocessor< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "keywordflow" > if< / span > (old_stack_size != preprocessors_.size()) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_preprocessor.html" > SingletonPreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_free_constraint_preprocessor.html" > FreeConstraintPreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html" > UnconstrainedVariablePreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_empty_column_preprocessor.html" > EmptyColumnPreprocessor< / a > );< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_empty_constraint_preprocessor.html" > EmptyConstraintPreprocessor< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   }< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_column_sign_preprocessor.html" > SingletonColumnSignPreprocessor< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   }< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "comment" > // The scaling is controled by use_scaling, not use_preprocessing.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_scaling_preprocessor.html" > ScalingPreprocessor< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "comment" > // This one must always run. It is needed by the revised simplex code.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < a class = "code" href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_add_slack_variables_preprocessor.html" > AddSlackVariablesPreprocessor< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < span class = "keywordflow" > return< / span > !preprocessors_.empty();< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   }< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "preprocessor" > #undef RUN_PREPROCESSOR< / span > < / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < span class = "keywordtype" > void< / span > MainLpPreprocessor::RunAndPushIfRelevant(< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   std::unique_ptr< Preprocessor> preprocessor, < span class = "keyword" > const< / span > std::string& < a class = "code" href = "default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267" > name< / a > ,< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < a class = "code" href = "classoperations__research_1_1_time_limit.html" > TimeLimit< / a > * < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > , < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (preprocessor);< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > );< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > != < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > ProblemStatus::INIT< / a > || < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > -> LimitReached()) < span class = "keywordflow" > return< / span > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > start_time = < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > -> GetElapsedTime();< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   preprocessor-> SetTimeLimit(< a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > );< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   < span class = "comment" > // No need to run the preprocessor if the lp is empty.< / span > < / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   < span class = "comment" > // TODO(user): without this test, the code is failing as of 2013-03-18.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > () == 0 & & lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > () == 0) {< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293" > ProblemStatus::OPTIMAL< / a > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   }< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   < / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   < span class = "keywordflow" > if< / span > (preprocessor-> Run(lp)) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < span class = "keyword" > const< / span > EntryIndex new_num_entries = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > preprocess_time = < a class = "code" href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > -> GetElapsedTime() - start_time;< / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   VLOG(1) < < absl::StrFormat(< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "stringliteral" > " %s(%fs): %d(%d) rows, %d(%d) columns, %d(%d) entries." < / span > , < a class = "code" href = "default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267" > name< / a > ,< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   preprocess_time, lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ().value(),< / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > () - initial_num_rows_).value(),< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ().value(),< / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > () - initial_num_cols_).value(),< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < span class = "comment" > // static_cast< int64> is needed because the Android port uses int32.< / span > < / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   < span class = "keyword" > static_cast< < / span > < a class = "code" href = "integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a" > int64< / a > < span class = "keyword" > > < / span > (new_num_entries.value()),< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   < span class = "keyword" > static_cast< < / span > < a class = "code" href = "integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a" > int64< / a > < span class = "keyword" > > < / span > (new_num_entries.value() -< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   initial_num_entries_.value()));< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = preprocessor-> status();< / div >
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< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   preprocessors_.push_back(std::move(preprocessor));< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   < span class = "comment" > // Even if a preprocessor returns false (i.e. no need for postsolve), it< / span > < / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < span class = "comment" > // can detect an issue with the problem.< / span > < / div >
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< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = preprocessor-> status();< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > != < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > ProblemStatus::INIT< / a > ) {< / div >
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< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   VLOG(1) < < < a class = "code" href = "default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267" > name< / a > < < < span class = "stringliteral" > " detected that the problem is " < / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < < < a class = "code" href = "namespaceoperations__research_1_1glop.html#a509c4e359e6f7041eddfac3f1c46a92f" > GetProblemStatusString< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > );< / div >
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< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   }< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   }< / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   }< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   < / div >
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< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_main_lp_preprocessor.html#a465d7f4ac3a848d3ef84108d427b8de4" > 173< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_main_lp_preprocessor.html#a465d7f4ac3a848d3ef84108d427b8de4" > MainLpPreprocessor::RecoverSolution< / a > (< a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   < span class = "keywordflow" > while< / span > (!preprocessors_.empty()) {< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   preprocessors_.back()-> RecoverSolution(solution);< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   preprocessors_.pop_back();< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   }< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   }< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < span class = "comment" > // ColumnDeletionHelper< / span > < / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   < / div >
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< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#aa71d36872f416feaa853788a7a7a7ef8" > 185< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#aa71d36872f416feaa853788a7a7a7ef8" > ColumnDeletionHelper::Clear< / a > () {< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   is_column_deleted_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > ();< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   stored_value_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > ();< / div >
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< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   }< / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a46b7ed2e9e3a3d5dc9a024801e1baaf7" > 190< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a46b7ed2e9e3a3d5dc9a024801e1baaf7" > ColumnDeletionHelper::MarkColumnForDeletion< / a > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a43d852970601d1a979844a0aae79ed3d" > MarkColumnForDeletionWithState< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , 0.0, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   }< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a43d852970601d1a979844a0aae79ed3d" > 194< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a43d852970601d1a979844a0aae79ed3d" > ColumnDeletionHelper::MarkColumnForDeletionWithState< / a > (< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > fixed_value, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > status) {< / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   DCHECK_GE(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , 0);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > > = is_column_deleted_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ()) {< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   is_column_deleted_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > + 1, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   stored_value_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > + 1, 0.0);< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   stored_status_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > + 1, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   }< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   is_column_deleted_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   stored_value_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = fixed_value;< / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   stored_status_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = status;< / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   }< / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#ab73f53154d99b3cd13dae72fd418985d" > 207< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#ab73f53154d99b3cd13dae72fd418985d" > ColumnDeletionHelper::RestoreDeletedColumns< / a > (< / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseRow< / a > new_primal_values;< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > VariableStatusRow< / a > new_variable_statuses;< / div >
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< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   ColIndex old_index(0);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < is_column_deleted_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > (); ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   < span class = "keywordflow" > if< / span > (is_column_deleted_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   new_primal_values.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (stored_value_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   new_variable_statuses.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (stored_status_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   } < span class = "keywordflow" > else< / span > {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   new_primal_values.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [old_index]);< / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   new_variable_statuses.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [old_index]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   ++old_index;< / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   }< / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   }< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   < span class = "comment" > // Copy the end of the vectors and swap them with the ones in solution.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   DCHECK_EQ(num_cols, solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ());< / div >
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< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   < span class = "keywordflow" > for< / span > (; old_index < num_cols; ++old_index) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   new_primal_values.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [old_index]);< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   new_variable_statuses.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [old_index]);< / div >
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< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   }< / div >
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< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   new_primal_values.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ab93f952cf4db5c7f9a59163f933e5bbe" > swap< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > );< / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   new_variable_statuses.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ab93f952cf4db5c7f9a59163f933e5bbe" > swap< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > );< / div >
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< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   }< / div >
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   < / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   < span class = "comment" > // RowDeletionHelper< / span > < / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   < / div >
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< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#aa71d36872f416feaa853788a7a7a7ef8" > 238< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#aa71d36872f416feaa853788a7a7a7ef8" > RowDeletionHelper::Clear< / a > () { is_row_deleted_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > (); }< / div >
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< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   < / div >
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< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2087c8376c03c247099a989f2990e6e8" > 240< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2087c8376c03c247099a989f2990e6e8" > RowDeletionHelper::MarkRowForDeletion< / a > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
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< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   DCHECK_GE(< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > , 0);< / div >
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< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > > = is_row_deleted_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ()) {< / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   is_row_deleted_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > + 1, < span class = "keyword" > false< / span > );< / div >
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< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   }< / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   is_row_deleted_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   }< / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2e33d930193e16f06f3c4d0309ff62c2" > 248< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2e33d930193e16f06f3c4d0309ff62c2" > RowDeletionHelper::UnmarkRow< / a > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > > = is_row_deleted_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ()) < span class = "keywordflow" > return< / span > ;< / div >
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< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   is_row_deleted_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   }< / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a4dda252e2b65e3aa074c002daf6f86b8" > 253< / a > < / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseBooleanColumn< / a > & < a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a4dda252e2b65e3aa074c002daf6f86b8" > RowDeletionHelper::GetMarkedRows< / a > ()< span class = "keyword" > const < / span > {< / div >
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< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   < span class = "keywordflow" > return< / span > is_row_deleted_;< / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   }< / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a43e3b399f53b38b75171071c9d730c5b" > 257< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a43e3b399f53b38b75171071c9d730c5b" > RowDeletionHelper::RestoreDeletedRows< / a > (< a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseColumn< / a > new_dual_values;< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > ConstraintStatusColumn< / a > new_constraint_statuses;< / div >
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< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   RowIndex old_index(0);< / div >
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< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   < span class = "keyword" > const< / span > RowIndex end = is_row_deleted_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < end; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   < span class = "keywordflow" > if< / span > (is_row_deleted_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   new_dual_values.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (0.0);< / div >
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   new_constraint_statuses.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae4ac03f6c9f00665644e868dd1fb9f1e" > ConstraintStatus::BASIC< / a > );< / div >
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< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   } < span class = "keywordflow" > else< / span > {< / div >
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< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   new_dual_values.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [old_index]);< / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   new_constraint_statuses.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< / div >
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [old_index]);< / div >
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< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   ++old_index;< / div >
< div class = "line" > < a name = "l00271" > < / a > < span class = "lineno" > 271< / span >   }< / div >
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   }< / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   < / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   < span class = "comment" > // Copy the end of the vectors and swap them with the ones in solution.< / span > < / div >
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< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   DCHECK_EQ(num_rows, solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ());< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / span >   < span class = "keywordflow" > for< / span > (; old_index < num_rows; ++old_index) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   new_dual_values.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [old_index]);< / div >
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   new_constraint_statuses.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [old_index]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   }< / div >
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< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   new_dual_values.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ab93f952cf4db5c7f9a59163f933e5bbe" > swap< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > );< / div >
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > 282< / span >   new_constraint_statuses.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ab93f952cf4db5c7f9a59163f933e5bbe" > swap< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00283" > < / a > < span class = "lineno" > 283< / span >   }< / div >
< div class = "line" > < a name = "l00284" > < / a > < span class = "lineno" > 284< / span >   < / div >
< div class = "line" > < a name = "l00285" > < / a > < span class = "lineno" > 285< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   < span class = "comment" > // EmptyColumnPreprocessor< / span > < / div >
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > 287< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   < / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   < / div >
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   < span class = "comment" > // Computes the status of a variable given its value and bounds. This only works< / span > < / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   < span class = "comment" > // with a value exactly at one of the bounds, or a value of 0.0 for free< / span > < / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   < span class = "comment" > // variables.< / span > < / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > ComputeVariableStatus(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound,< / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > 295< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound) {< / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > 296< / span >   < span class = "keywordflow" > if< / span > (lower_bound == upper_bound) {< / div >
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   DCHECK_EQ(< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > , lower_bound);< / div >
< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   DCHECK(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (lower_bound));< / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > ;< / div >
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   }< / div >
< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > == lower_bound) {< / div >
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > 302< / span >   DCHECK_NE(lower_bound, -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l00303" > < / a > < span class = "lineno" > 303< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l00304" > < / a > < span class = "lineno" > 304< / span >   }< / div >
< div class = "line" > < a name = "l00305" > < / a > < span class = "lineno" > 305< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > == upper_bound) {< / div >
< div class = "line" > < a name = "l00306" > < / a > < span class = "lineno" > 306< / span >   DCHECK_NE(upper_bound, < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l00307" > < / a > < span class = "lineno" > 307< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l00308" > < / a > < span class = "lineno" > 308< / span >   }< / div >
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   < / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   < span class = "comment" > // TODO(user): restrict this to unbounded variables with a value of zero.< / span > < / div >
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > 311< / span >   < span class = "comment" > // We can' t do that when postsolving infeasible problem. Don' t call postsolve< / span > < / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   < span class = "comment" > // on an infeasible problem?< / span > < / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > ;< / div >
< div class = "line" > < a name = "l00314" > < / a > < span class = "lineno" > 314< / span >   }< / div >
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   < / div >
< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   < span class = "comment" > // Returns the input with the smallest magnitude or zero if both are infinite.< / span > < / div >
< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > MinInMagnitudeOrZeroIfInfinite(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "constraint__solver_2table_8cc.html#af730895c6c6ef6e03caaf6251192dfd2" > a< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "constraint__solver_2table_8cc.html#a344010e26426d6a13411648d988bc9b6" > b< / a > ) {< / div >
< div class = "line" > < a name = "l00318" > < / a > < span class = "lineno" > 318< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = std::abs(< a class = "code" href = "constraint__solver_2table_8cc.html#af730895c6c6ef6e03caaf6251192dfd2" > a< / a > ) < std::abs(< a class = "code" href = "constraint__solver_2table_8cc.html#a344010e26426d6a13411648d988bc9b6" > b< / a > ) ? < a class = "code" href = "constraint__solver_2table_8cc.html#af730895c6c6ef6e03caaf6251192dfd2" > a< / a > : < a class = "code" href = "constraint__solver_2table_8cc.html#a344010e26426d6a13411648d988bc9b6" > b< / a > ;< / div >
< div class = "line" > < a name = "l00319" > < / a > < span class = "lineno" > 319< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ) ? < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > : 0.0;< / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > 320< / span >   }< / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   < / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > MagnitudeOrZeroIfInfinite(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ) {< / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ) ? std::abs(< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ) : 0.0;< / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   }< / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   < / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   < span class = "comment" > // Returns the maximum magnitude of the finite variable bounds of the given< / span > < / div >
< div class = "line" > < a name = "l00327" > < / a > < span class = "lineno" > 327< / span >   < span class = "comment" > // linear program.< / span > < / div >
< div class = "line" > < a name = "l00328" > < / a > < span class = "lineno" > 328< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > ComputeMaxVariableBoundsMagnitude(< span class = "keyword" > const< / span > LinearProgram& lp) {< / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > max_bounds_magnitude = 0.0;< / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp.num_variables();< / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > 331< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00332" > < / a > < span class = "lineno" > 332< / span >   max_bounds_magnitude = < a class = "code" href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > std::max< / a > (< / div >
< div class = "line" > < a name = "l00333" > < / a > < span class = "lineno" > 333< / span >   max_bounds_magnitude,< / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   < a class = "code" href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > std::max< / a > (MagnitudeOrZeroIfInfinite(lp.variable_lower_bounds()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]),< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   MagnitudeOrZeroIfInfinite(lp.variable_upper_bounds()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ])));< / div >
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > 336< / span >   }< / div >
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   < span class = "keywordflow" > return< / span > max_bounds_magnitude;< / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   }< / div >
< div class = "line" > < a name = "l00339" > < / a > < span class = "lineno" > 339< / span >   < / div >
< div class = "line" > < a name = "l00340" > < / a > < span class = "lineno" > 340< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > 341< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_empty_column_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 342< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_empty_column_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > EmptyColumnPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#aa71d36872f416feaa853788a7a7a7ef8" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00347" > < / a > < span class = "lineno" > 347< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00348" > < / a > < span class = "lineno" > 348< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ).< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ()) {< / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > objective_coefficient =< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a6137c2df856cf2634f9bb259d2aace2b" > GetObjectiveCoefficientForMinimizationVersion< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ;< / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   < span class = "keywordflow" > if< / span > (objective_coefficient == 0) {< / div >
< div class = "line" > < a name = "l00355" > < / a > < span class = "lineno" > 355< / span >   < span class = "comment" > // Any feasible value will do.< / span > < / div >
< div class = "line" > < a name = "l00356" > < / a > < span class = "lineno" > 356< / span >   < span class = "keywordflow" > if< / span > (upper_bound != < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = upper_bound;< / div >
< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   < span class = "keywordflow" > if< / span > (lower_bound != -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l00360" > < / a > < span class = "lineno" > 360< / span >   < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = lower_bound;< / div >
< div class = "line" > < a name = "l00361" > < / a > < span class = "lineno" > 361< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00362" > < / a > < span class = "lineno" > 362< / span >   < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > (0.0);< / div >
< div class = "line" > < a name = "l00363" > < / a > < span class = "lineno" > 363< / span >   }< / div >
< div class = "line" > < a name = "l00364" > < / a > < span class = "lineno" > 364< / span >   }< / div >
< div class = "line" > < a name = "l00365" > < / a > < span class = "lineno" > 365< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = objective_coefficient > 0 ? lower_bound : upper_bound;< / div >
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > )) {< / div >
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   VLOG(1) < < < span class = "stringliteral" > " Problem INFEASIBLE_OR_UNBOUNDED, empty column " < / span > < < < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < / div >
< div class = "line" > < a name = "l00369" > < / a > < span class = "lineno" > 369< / span >   < < < span class = "stringliteral" > " has a minimization cost of " < / span > < < objective_coefficient< / div >
< div class = "line" > < a name = "l00370" > < / a > < span class = "lineno" > 370< / span >   < < < span class = "stringliteral" > " and bounds" < / span > < / div >
< div class = "line" > < a name = "l00371" > < / a > < span class = "lineno" > 371< / span >   < < < span class = "stringliteral" > " [" < / span > < < lower_bound < < < span class = "stringliteral" > " ," < / span > < < upper_bound < < < span class = "stringliteral" > " ]" < / span > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00372" > < / a > < span class = "lineno" > 372< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::INFEASIBLE_OR_UNBOUNDED;< / div >
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< div class = "line" > < a name = "l00373" > < / a > < span class = "lineno" > 373< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00374" > < / a > < span class = "lineno" > 374< / span >   }< / div >
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< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a2a29cc40908e09b0c565ceea15b77d89" > SetObjectiveOffset< / a > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a81334c7ceae9d68a38fe4d4bf0b7794c" > objective_offset< / a > () +< / div >
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > * lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
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< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   }< / div >
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< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > 378< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a43d852970601d1a979844a0aae79ed3d" > MarkColumnForDeletionWithState< / a > (< / div >
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< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > , ComputeVariableStatus(< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > , lower_bound, upper_bound));< / div >
< div class = "line" > < a name = "l00380" > < / a > < span class = "lineno" > 380< / span >   }< / div >
< div class = "line" > < a name = "l00381" > < / a > < span class = "lineno" > 381< / span >   }< / div >
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< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac59fd9cddfe284bf9dc7581ed631ce8d" > DeleteColumns< / a > (column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a6afccf8c0c7105ba45b8d7bd47830239" > GetMarkedColumns< / a > ());< / div >
< div class = "line" > < a name = "l00383" > < / a > < span class = "lineno" > 383< / span >   < span class = "keywordflow" > return< / span > !column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ();< / div >
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< div class = "line" > < a name = "l00384" > < / a > < span class = "lineno" > 384< / span >   }< / div >
< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   < / div >
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< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_empty_column_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 386< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_empty_column_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > EmptyColumnPreprocessor::RecoverSolution< / a > (< a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > 387< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
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< div class = "line" > < a name = "l00388" > < / a > < span class = "lineno" > 388< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00389" > < / a > < span class = "lineno" > 389< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#ab73f53154d99b3cd13dae72fd418985d" > RestoreDeletedColumns< / a > (solution);< / div >
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< div class = "line" > < a name = "l00390" > < / a > < span class = "lineno" > 390< / span >   }< / div >
< div class = "line" > < a name = "l00391" > < / a > < span class = "lineno" > 391< / span >   < / div >
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   < span class = "comment" > // ProportionalColumnPreprocessor< / span > < / div >
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > 395< / span >   < / div >
< div class = "line" > < a name = "l00396" > < / a > < span class = "lineno" > 396< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00397" > < / a > < span class = "lineno" > 397< / span >   < / div >
< div class = "line" > < a name = "l00398" > < / a > < span class = "lineno" > 398< / span >   < span class = "comment" > // Subtracts ' multiple' times the column col of the given linear program from< / span > < / div >
< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   < span class = "comment" > // the constraint bounds. That is, for a non-zero entry of coefficient c,< / span > < / div >
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > 400< / span >   < span class = "comment" > // c * multiple is substracted from both the constraint upper and lower bound.< / span > < / div >
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   < span class = "keywordtype" > void< / span > SubtractColumnMultipleFromConstraintBound(ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ,< / div >
< div class = "line" > < a name = "l00402" > < / a > < span class = "lineno" > 402< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > multiple,< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00403" > < / a > < span class = "lineno" > 403< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l00404" > < / a > < span class = "lineno" > 404< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
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< div class = "line" > < a name = "l00405" > < / a > < span class = "lineno" > 405< / span >   < span class = "keyword" > const< / span > RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = e.row();< / div >
< div class = "line" > < a name = "l00406" > < / a > < span class = "lineno" > 406< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "resource_8cc.html#a73461c37822b6ebb75b54ba1a9ffb442" > delta< / a > = multiple * e.coefficient();< / div >
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< div class = "line" > < a name = "l00407" > < / a > < span class = "lineno" > 407< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a62b98dec38b6506442f9fc63f1a9b88f" > SetConstraintBounds< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > , lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] - < a class = "code" href = "resource_8cc.html#a73461c37822b6ebb75b54ba1a9ffb442" > delta< / a > ,< / div >
< div class = "line" > < a name = "l00408" > < / a > < span class = "lineno" > 408< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] - < a class = "code" href = "resource_8cc.html#a73461c37822b6ebb75b54ba1a9ffb442" > delta< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00409" > < / a > < span class = "lineno" > 409< / span >   }< / div >
< div class = "line" > < a name = "l00410" > < / a > < span class = "lineno" > 410< / span >   < span class = "comment" > // While not needed for correctness, this allows the presolved problem to< / span > < / div >
< div class = "line" > < a name = "l00411" > < / a > < span class = "lineno" > 411< / span >   < span class = "comment" > // have the same objective value as the original one.< / span > < / div >
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< div class = "line" > < a name = "l00412" > < / a > < span class = "lineno" > 412< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a2a29cc40908e09b0c565ceea15b77d89" > SetObjectiveOffset< / a > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a81334c7ceae9d68a38fe4d4bf0b7794c" > objective_offset< / a > () +< / div >
< div class = "line" > < a name = "l00413" > < / a > < span class = "lineno" > 413< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] * multiple);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00414" > < / a > < span class = "lineno" > 414< / span >   }< / div >
< div class = "line" > < a name = "l00415" > < / a > < span class = "lineno" > 415< / span >   < / div >
< div class = "line" > < a name = "l00416" > < / a > < span class = "lineno" > 416< / span >   < span class = "comment" > // Struct used to detect proportional columns with the same cost. For that, a< / span > < / div >
< div class = "line" > < a name = "l00417" > < / a > < span class = "lineno" > 417< / span >   < span class = "comment" > // vector of such struct will be sorted, and only the columns that end up< / span > < / div >
< div class = "line" > < a name = "l00418" > < / a > < span class = "lineno" > 418< / span >   < span class = "comment" > // together need to be compared.< / span > < / div >
< div class = "line" > < a name = "l00419" > < / a > < span class = "lineno" > 419< / span >   < span class = "keyword" > struct < / span > ColumnWithRepresentativeAndScaledCost {< / div >
< div class = "line" > < a name = "l00420" > < / a > < span class = "lineno" > 420< / span >   ColumnWithRepresentativeAndScaledCost(ColIndex _col, ColIndex _representative,< / div >
< div class = "line" > < a name = "l00421" > < / a > < span class = "lineno" > 421< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > _scaled_cost)< / div >
< div class = "line" > < a name = "l00422" > < / a > < span class = "lineno" > 422< / span >   : < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (_col), < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > (_representative), < a class = "code" href = "preprocessor_8cc.html#a72ecc219428436501225dd42f67c73a9" > scaled_cost< / a > (_scaled_cost) {}< / div >
< div class = "line" > < a name = "l00423" > < / a > < span class = "lineno" > < a class = "line" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > 423< / a > < / span >   ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ;< / div >
< div class = "line" > < a name = "l00424" > < / a > < span class = "lineno" > < a class = "line" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > 424< / a > < / span >   ColIndex < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ;< / div >
< div class = "line" > < a name = "l00425" > < / a > < span class = "lineno" > < a class = "line" href = "preprocessor_8cc.html#a72ecc219428436501225dd42f67c73a9" > 425< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "preprocessor_8cc.html#a72ecc219428436501225dd42f67c73a9" > scaled_cost< / a > ;< / div >
< div class = "line" > < a name = "l00426" > < / a > < span class = "lineno" > 426< / span >   < / div >
< div class = "line" > < a name = "l00427" > < / a > < span class = "lineno" > 427< / span >   < span class = "keywordtype" > bool< / span > operator< (< span class = "keyword" > const< / span > ColumnWithRepresentativeAndScaledCost& other)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00428" > < / a > < span class = "lineno" > 428< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > == other.representative) {< / div >
< div class = "line" > < a name = "l00429" > < / a > < span class = "lineno" > 429< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "preprocessor_8cc.html#a72ecc219428436501225dd42f67c73a9" > scaled_cost< / a > == other.scaled_cost) {< / div >
< div class = "line" > < a name = "l00430" > < / a > < span class = "lineno" > 430< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < other.col;< / div >
< div class = "line" > < a name = "l00431" > < / a > < span class = "lineno" > 431< / span >   }< / div >
< div class = "line" > < a name = "l00432" > < / a > < span class = "lineno" > 432< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "preprocessor_8cc.html#a72ecc219428436501225dd42f67c73a9" > scaled_cost< / a > < other.scaled_cost;< / div >
< div class = "line" > < a name = "l00433" > < / a > < span class = "lineno" > 433< / span >   }< / div >
< div class = "line" > < a name = "l00434" > < / a > < span class = "lineno" > 434< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > < other.representative;< / div >
< div class = "line" > < a name = "l00435" > < / a > < span class = "lineno" > 435< / span >   }< / div >
< div class = "line" > < a name = "l00436" > < / a > < span class = "lineno" > 436< / span >   };< / div >
< div class = "line" > < a name = "l00437" > < / a > < span class = "lineno" > 437< / span >   < / div >
< div class = "line" > < a name = "l00438" > < / a > < span class = "lineno" > 438< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l00439" > < / a > < span class = "lineno" > 439< / span >   < / div >
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< div class = "line" > < a name = "l00440" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_proportional_column_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 440< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_proportional_column_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > ProportionalColumnPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l00441" > < / a > < span class = "lineno" > 441< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00442" > < / a > < span class = "lineno" > 442< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
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< div class = "line" > < a name = "l00443" > < / a > < span class = "lineno" > 443< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > ColMapping< / a > mapping = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ac9bef291f9b941569978d0f075144abf" > FindProportionalColumns< / a > (< / div >
< div class = "line" > < a name = "l00444" > < / a > < span class = "lineno" > 444< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a33b78d7012477c55f395aaf92ca6e9f4" > GetSparseMatrix< / a > (), < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .preprocessor_zero_tolerance());< / div >
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< div class = "line" > < a name = "l00445" > < / a > < span class = "lineno" > 445< / span >   < / div >
< div class = "line" > < a name = "l00446" > < / a > < span class = "lineno" > 446< / span >   < span class = "comment" > // Compute some statistics and make each class representative point to itself< / span > < / div >
< div class = "line" > < a name = "l00447" > < / a > < span class = "lineno" > 447< / span >   < span class = "comment" > // in the mapping. Also store the columns that are proportional to at least< / span > < / div >
< div class = "line" > < a name = "l00448" > < / a > < span class = "lineno" > 448< / span >   < span class = "comment" > // another column in proportional_columns to iterate on them more efficiently.< / span > < / div >
< div class = "line" > < a name = "l00449" > < / a > < span class = "lineno" > 449< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00450" > < / a > < span class = "lineno" > 450< / span >   < span class = "comment" > // TODO(user): Change FindProportionalColumns for this?< / span > < / div >
< div class = "line" > < a name = "l00451" > < / a > < span class = "lineno" > 451< / span >   < span class = "keywordtype" > int< / span > num_proportionality_classes = 0;< / div >
< div class = "line" > < a name = "l00452" > < / a > < span class = "lineno" > 452< / span >   std::vector< ColIndex> proportional_columns;< / div >
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< div class = "line" > < a name = "l00453" > < / a > < span class = "lineno" > 453< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < mapping.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > (); ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
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< div class = "line" > < a name = "l00454" > < / a > < span class = "lineno" > 454< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > = mapping[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00455" > < / a > < span class = "lineno" > 455< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > != < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l00456" > < / a > < span class = "lineno" > 456< / span >   < span class = "keywordflow" > if< / span > (mapping[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l00457" > < / a > < span class = "lineno" > 457< / span >   proportional_columns.push_back(< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > );< / div >
< div class = "line" > < a name = "l00458" > < / a > < span class = "lineno" > 458< / span >   ++num_proportionality_classes;< / div >
< div class = "line" > < a name = "l00459" > < / a > < span class = "lineno" > 459< / span >   mapping[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] = < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ;< / div >
< div class = "line" > < a name = "l00460" > < / a > < span class = "lineno" > 460< / span >   }< / div >
< div class = "line" > < a name = "l00461" > < / a > < span class = "lineno" > 461< / span >   proportional_columns.push_back(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00462" > < / a > < span class = "lineno" > 462< / span >   }< / div >
< div class = "line" > < a name = "l00463" > < / a > < span class = "lineno" > 463< / span >   }< / div >
< div class = "line" > < a name = "l00464" > < / a > < span class = "lineno" > 464< / span >   < span class = "keywordflow" > if< / span > (proportional_columns.empty()) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00465" > < / a > < span class = "lineno" > 465< / span >   VLOG(1) < < < span class = "stringliteral" > " The problem contains " < / span > < < proportional_columns.size()< / div >
< div class = "line" > < a name = "l00466" > < / a > < span class = "lineno" > 466< / span >   < < < span class = "stringliteral" > " columns which belong to " < / span > < < num_proportionality_classes< / div >
< div class = "line" > < a name = "l00467" > < / a > < span class = "lineno" > 467< / span >   < < < span class = "stringliteral" > " proportionality classes." < / span > ;< / div >
< div class = "line" > < a name = "l00468" > < / a > < span class = "lineno" > 468< / span >   < / div >
< div class = "line" > < a name = "l00469" > < / a > < span class = "lineno" > 469< / span >   < span class = "comment" > // Note(user): using the first coefficient may not give the best precision.< / span > < / div >
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< div class = "line" > < a name = "l00470" > < / a > < span class = "lineno" > 470< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
< div class = "line" > < a name = "l00471" > < / a > < span class = "lineno" > 471< / span >   column_factors_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, 0.0);< / div >
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< div class = "line" > < a name = "l00472" > < / a > < span class = "lineno" > 472< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : proportional_columns) {< / div >
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< div class = "line" > < a name = "l00473" > < / a > < span class = "lineno" > 473< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_column.html" > SparseColumn< / a > & column = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00474" > < / a > < span class = "lineno" > 474< / span >   column_factors_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = column.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ae7c152aafe19515204c65dadcdc876d6" > GetFirstCoefficient< / a > ();< / div >
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< div class = "line" > < a name = "l00475" > < / a > < span class = "lineno" > 475< / span >   }< / div >
< div class = "line" > < a name = "l00476" > < / a > < span class = "lineno" > 476< / span >   < / div >
< div class = "line" > < a name = "l00477" > < / a > < span class = "lineno" > 477< / span >   < span class = "comment" > // This is only meaningful for column representative.< / span > < / div >
< div class = "line" > < a name = "l00478" > < / a > < span class = "lineno" > 478< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00479" > < / a > < span class = "lineno" > 479< / span >   < span class = "comment" > // The reduced cost of a column is ' cost - dual_values.column' and we know< / span > < / div >
< div class = "line" > < a name = "l00480" > < / a > < span class = "lineno" > 480< / span >   < span class = "comment" > // that for all proportional columns, ' dual_values.column /< / span > < / div >
< div class = "line" > < a name = "l00481" > < / a > < span class = "lineno" > 481< / span >   < span class = "comment" > // column_factors_[col]' is the same. Here, we bound this quantity which is< / span > < / div >
< div class = "line" > < a name = "l00482" > < / a > < span class = "lineno" > 482< / span >   < span class = "comment" > // related to the cost ' slope' of a proportional column:< / span > < / div >
< div class = "line" > < a name = "l00483" > < / a > < span class = "lineno" > 483< / span >   < span class = "comment" > // cost / column_factors_[col].< / span > < / div >
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< div class = "line" > < a name = "l00484" > < / a > < span class = "lineno" > 484< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseRow< / a > slope_lower_bound(num_cols, -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l00485" > < / a > < span class = "lineno" > 485< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseRow< / a > slope_upper_bound(num_cols, +< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
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< div class = "line" > < a name = "l00486" > < / a > < span class = "lineno" > 486< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : proportional_columns) {< / div >
< div class = "line" > < a name = "l00487" > < / a > < span class = "lineno" > 487< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > = mapping[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00488" > < / a > < span class = "lineno" > 488< / span >   < / div >
< div class = "line" > < a name = "l00489" > < / a > < span class = "lineno" > 489< / span >   < span class = "comment" > // We reason in terms of a minimization problem here.< / span > < / div >
< div class = "line" > < a name = "l00490" > < / a > < span class = "lineno" > 490< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > is_rc_positive_or_zero =< / div >
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< div class = "line" > < a name = "l00491" > < / a > < span class = "lineno" > 491< / span >   (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
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< div class = "line" > < a name = "l00492" > < / a > < span class = "lineno" > 492< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > is_rc_negative_or_zero =< / div >
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< div class = "line" > < a name = "l00493" > < / a > < span class = "lineno" > 493< / span >   (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
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< div class = "line" > < a name = "l00494" > < / a > < span class = "lineno" > 494< / span >   < span class = "keywordtype" > bool< / span > is_slope_upper_bounded = is_rc_positive_or_zero;< / div >
< div class = "line" > < a name = "l00495" > < / a > < span class = "lineno" > 495< / span >   < span class = "keywordtype" > bool< / span > is_slope_lower_bounded = is_rc_negative_or_zero;< / div >
< div class = "line" > < a name = "l00496" > < / a > < span class = "lineno" > 496< / span >   < span class = "keywordflow" > if< / span > (column_factors_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] < 0.0) {< / div >
< div class = "line" > < a name = "l00497" > < / a > < span class = "lineno" > 497< / span >   std::swap(is_slope_lower_bounded, is_slope_upper_bounded);< / div >
< div class = "line" > < a name = "l00498" > < / a > < span class = "lineno" > 498< / span >   }< / div >
< div class = "line" > < a name = "l00499" > < / a > < span class = "lineno" > 499< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > slope =< / div >
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< div class = "line" > < a name = "l00500" > < / a > < span class = "lineno" > 500< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a6137c2df856cf2634f9bb259d2aace2b" > GetObjectiveCoefficientForMinimizationVersion< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) /< / div >
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< div class = "line" > < a name = "l00501" > < / a > < span class = "lineno" > 501< / span >   column_factors_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00502" > < / a > < span class = "lineno" > 502< / span >   < span class = "keywordflow" > if< / span > (is_slope_lower_bounded) {< / div >
< div class = "line" > < a name = "l00503" > < / a > < span class = "lineno" > 503< / span >   slope_lower_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] =< / div >
< div class = "line" > < a name = "l00504" > < / a > < span class = "lineno" > 504< / span >   < a class = "code" href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > std::max< / a > (slope_lower_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ], slope);< / div >
< div class = "line" > < a name = "l00505" > < / a > < span class = "lineno" > 505< / span >   }< / div >
< div class = "line" > < a name = "l00506" > < / a > < span class = "lineno" > 506< / span >   < span class = "keywordflow" > if< / span > (is_slope_upper_bounded) {< / div >
< div class = "line" > < a name = "l00507" > < / a > < span class = "lineno" > 507< / span >   slope_upper_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] =< / div >
< div class = "line" > < a name = "l00508" > < / a > < span class = "lineno" > 508< / span >   < a class = "code" href = "alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37" > std::min< / a > (slope_upper_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ], slope);< / div >
< div class = "line" > < a name = "l00509" > < / a > < span class = "lineno" > 509< / span >   }< / div >
< div class = "line" > < a name = "l00510" > < / a > < span class = "lineno" > 510< / span >   }< / div >
< div class = "line" > < a name = "l00511" > < / a > < span class = "lineno" > 511< / span >   < / div >
< div class = "line" > < a name = "l00512" > < / a > < span class = "lineno" > 512< / span >   < span class = "comment" > // Deal with empty slope intervals.< / span > < / div >
< div class = "line" > < a name = "l00513" > < / a > < span class = "lineno" > 513< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : proportional_columns) {< / div >
< div class = "line" > < a name = "l00514" > < / a > < span class = "lineno" > 514< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > = mapping[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00515" > < / a > < span class = "lineno" > 515< / span >   < / div >
< div class = "line" > < a name = "l00516" > < / a > < span class = "lineno" > 516< / span >   < span class = "comment" > // This is only needed for class representative columns.< / span > < / div >
< div class = "line" > < a name = "l00517" > < / a > < span class = "lineno" > 517< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > == < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
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< div class = "line" > < a name = "l00518" > < / a > < span class = "lineno" > 518< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (< / div >
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< div class = "line" > < a name = "l00519" > < / a > < span class = "lineno" > 519< / span >   slope_lower_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ],< / div >
< div class = "line" > < a name = "l00520" > < / a > < span class = "lineno" > 520< / span >   slope_upper_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ])) {< / div >
< div class = "line" > < a name = "l00521" > < / a > < span class = "lineno" > 521< / span >   VLOG(1) < < < span class = "stringliteral" > " Problem INFEASIBLE_OR_UNBOUNDED, no feasible dual values" < / span > < / div >
< div class = "line" > < a name = "l00522" > < / a > < span class = "lineno" > 522< / span >   < < < span class = "stringliteral" > " can satisfy the constraints of the proportional columns" < / span > < / div >
< div class = "line" > < a name = "l00523" > < / a > < span class = "lineno" > 523< / span >   < < < span class = "stringliteral" > " with representative " < / span > < < < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > < < < span class = "stringliteral" > " ." < / span > < / div >
< div class = "line" > < a name = "l00524" > < / a > < span class = "lineno" > 524< / span >   < < < span class = "stringliteral" > " the associated quantity must be in [" < / span > < / div >
< div class = "line" > < a name = "l00525" > < / a > < span class = "lineno" > 525< / span >   < < slope_lower_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] < < < span class = "stringliteral" > " ," < / span > < / div >
< div class = "line" > < a name = "l00526" > < / a > < span class = "lineno" > 526< / span >   < < slope_upper_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] < < < span class = "stringliteral" > " ]." < / span > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00527" > < / a > < span class = "lineno" > 527< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::INFEASIBLE_OR_UNBOUNDED;< / div >
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< div class = "line" > < a name = "l00528" > < / a > < span class = "lineno" > 528< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00529" > < / a > < span class = "lineno" > 529< / span >   }< / div >
< div class = "line" > < a name = "l00530" > < / a > < span class = "lineno" > 530< / span >   }< / div >
< div class = "line" > < a name = "l00531" > < / a > < span class = "lineno" > 531< / span >   }< / div >
< div class = "line" > < a name = "l00532" > < / a > < span class = "lineno" > 532< / span >   < / div >
< div class = "line" > < a name = "l00533" > < / a > < span class = "lineno" > 533< / span >   < span class = "comment" > // Now, fix the columns that can be fixed to one of their bounds.< / span > < / div >
< div class = "line" > < a name = "l00534" > < / a > < span class = "lineno" > 534< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : proportional_columns) {< / div >
< div class = "line" > < a name = "l00535" > < / a > < span class = "lineno" > 535< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > = mapping[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00536" > < / a > < span class = "lineno" > 536< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > slope =< / div >
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< div class = "line" > < a name = "l00537" > < / a > < span class = "lineno" > 537< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a6137c2df856cf2634f9bb259d2aace2b" > GetObjectiveCoefficientForMinimizationVersion< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) /< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00538" > < / a > < span class = "lineno" > 538< / span >   column_factors_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00539" > < / a > < span class = "lineno" > 539< / span >   < / div >
< div class = "line" > < a name = "l00540" > < / a > < span class = "lineno" > 540< / span >   < span class = "comment" > // The scaled reduced cost is slope - quantity.< / span > < / div >
< div class = "line" > < a name = "l00541" > < / a > < span class = "lineno" > 541< / span >   < span class = "keywordtype" > bool< / span > variable_can_be_fixed = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00542" > < / a > < span class = "lineno" > 542< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = 0.0;< / div >
< div class = "line" > < a name = "l00543" > < / a > < span class = "lineno" > 543< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00544" > < / a > < span class = "lineno" > 544< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00545" > < / a > < span class = "lineno" > 545< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00546" > < / a > < span class = "lineno" > 546< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (slope_lower_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ],< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00547" > < / a > < span class = "lineno" > 547< / span >   slope)) {< / div >
< div class = "line" > < a name = "l00548" > < / a > < span class = "lineno" > 548< / span >   < span class = "comment" > // The scaled reduced cost is < 0.< / span > < / div >
< div class = "line" > < a name = "l00549" > < / a > < span class = "lineno" > 549< / span >   variable_can_be_fixed = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00550" > < / a > < span class = "lineno" > 550< / span >   < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = (column_factors_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] > = 0.0) ? upper_bound : lower_bound;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00551" > < / a > < span class = "lineno" > 551< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (!< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00552" > < / a > < span class = "lineno" > 552< / span >   slope, slope_upper_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ])) {< / div >
< div class = "line" > < a name = "l00553" > < / a > < span class = "lineno" > 553< / span >   < span class = "comment" > // The scaled reduced cost is > 0.< / span > < / div >
< div class = "line" > < a name = "l00554" > < / a > < span class = "lineno" > 554< / span >   variable_can_be_fixed = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00555" > < / a > < span class = "lineno" > 555< / span >   < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = (column_factors_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] > = 0.0) ? lower_bound : upper_bound;< / div >
< div class = "line" > < a name = "l00556" > < / a > < span class = "lineno" > 556< / span >   }< / div >
< div class = "line" > < a name = "l00557" > < / a > < span class = "lineno" > 557< / span >   < / div >
< div class = "line" > < a name = "l00558" > < / a > < span class = "lineno" > 558< / span >   < span class = "keywordflow" > if< / span > (variable_can_be_fixed) {< / div >
< div class = "line" > < a name = "l00559" > < / a > < span class = "lineno" > 559< / span >   < span class = "comment" > // Clear mapping[col] so this column will not be considered for the next< / span > < / div >
< div class = "line" > < a name = "l00560" > < / a > < span class = "lineno" > 560< / span >   < span class = "comment" > // stage.< / span > < / div >
< div class = "line" > < a name = "l00561" > < / a > < span class = "lineno" > 561< / span >   mapping[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ;< / div >
< div class = "line" > < a name = "l00562" > < / a > < span class = "lineno" > 562< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > )) {< / div >
< div class = "line" > < a name = "l00563" > < / a > < span class = "lineno" > 563< / span >   VLOG(1) < < < span class = "stringliteral" > " Problem INFEASIBLE_OR_UNBOUNDED." < / span > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00564" > < / a > < span class = "lineno" > 564< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::INFEASIBLE_OR_UNBOUNDED;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00565" > < / a > < span class = "lineno" > 565< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00566" > < / a > < span class = "lineno" > 566< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00567" > < / a > < span class = "lineno" > 567< / span >   SubtractColumnMultipleFromConstraintBound(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > , lp);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00568" > < / a > < span class = "lineno" > 568< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a43d852970601d1a979844a0aae79ed3d" > MarkColumnForDeletionWithState< / a > (< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00569" > < / a > < span class = "lineno" > 569< / span >   < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ,< / div >
< div class = "line" > < a name = "l00570" > < / a > < span class = "lineno" > 570< / span >   ComputeVariableStatus(< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > , lower_bound, upper_bound));< / div >
< div class = "line" > < a name = "l00571" > < / a > < span class = "lineno" > 571< / span >   }< / div >
< div class = "line" > < a name = "l00572" > < / a > < span class = "lineno" > 572< / span >   }< / div >
< div class = "line" > < a name = "l00573" > < / a > < span class = "lineno" > 573< / span >   }< / div >
< div class = "line" > < a name = "l00574" > < / a > < span class = "lineno" > 574< / span >   < / div >
< div class = "line" > < a name = "l00575" > < / a > < span class = "lineno" > 575< / span >   < span class = "comment" > // Merge the variables with the same scaled cost.< / span > < / div >
< div class = "line" > < a name = "l00576" > < / a > < span class = "lineno" > 576< / span >   std::vector< ColumnWithRepresentativeAndScaledCost> sorted_columns;< / div >
< div class = "line" > < a name = "l00577" > < / a > < span class = "lineno" > 577< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > : proportional_columns) {< / div >
< div class = "line" > < a name = "l00578" > < / a > < span class = "lineno" > 578< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > = mapping[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00579" > < / a > < span class = "lineno" > 579< / span >   < / div >
< div class = "line" > < a name = "l00580" > < / a > < span class = "lineno" > 580< / span >   < span class = "comment" > // This test is needed because we already removed some columns.< / span > < / div >
< div class = "line" > < a name = "l00581" > < / a > < span class = "lineno" > 581< / span >   < span class = "keywordflow" > if< / span > (mapping[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l00582" > < / a > < span class = "lineno" > 582< / span >   sorted_columns.push_back(ColumnWithRepresentativeAndScaledCost(< / div >
< div class = "line" > < a name = "l00583" > < / a > < span class = "lineno" > 583< / span >   < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ,< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00584" > < / a > < span class = "lineno" > 584< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] / column_factors_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]));< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00585" > < / a > < span class = "lineno" > 585< / span >   }< / div >
< div class = "line" > < a name = "l00586" > < / a > < span class = "lineno" > 586< / span >   }< / div >
< div class = "line" > < a name = "l00587" > < / a > < span class = "lineno" > 587< / span >   std::sort(sorted_columns.begin(), sorted_columns.end());< / div >
< div class = "line" > < a name = "l00588" > < / a > < span class = "lineno" > 588< / span >   < / div >
< div class = "line" > < a name = "l00589" > < / a > < span class = "lineno" > 589< / span >   < span class = "comment" > // All this will be needed during postsolve.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00590" > < / a > < span class = "lineno" > 590< / span >   merged_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > );< / div >
< div class = "line" > < a name = "l00591" > < / a > < span class = "lineno" > 591< / span >   lower_bounds_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l00592" > < / a > < span class = "lineno" > 592< / span >   upper_bounds_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l00593" > < / a > < span class = "lineno" > 593< / span >   new_lower_bounds_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l00594" > < / a > < span class = "lineno" > 594< / span >   new_upper_bounds_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00595" > < / a > < span class = "lineno" > 595< / span >   < / div >
< div class = "line" > < a name = "l00596" > < / a > < span class = "lineno" > 596< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < sorted_columns.size();) {< / div >
< div class = "line" > < a name = "l00597" > < / a > < span class = "lineno" > 597< / span >   < span class = "keyword" > const< / span > ColIndex target_col = sorted_columns[i].col;< / div >
< div class = "line" > < a name = "l00598" > < / a > < span class = "lineno" > 598< / span >   < span class = "keyword" > const< / span > ColIndex target_representative = sorted_columns[i].representative;< / div >
< div class = "line" > < a name = "l00599" > < / a > < span class = "lineno" > 599< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > target_scaled_cost = sorted_columns[i].scaled_cost;< / div >
< div class = "line" > < a name = "l00600" > < / a > < span class = "lineno" > 600< / span >   < / div >
< div class = "line" > < a name = "l00601" > < / a > < span class = "lineno" > 601< / span >   < span class = "comment" > // Save the initial bounds before modifying them.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00602" > < / a > < span class = "lineno" > 602< / span >   lower_bounds_[target_col] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[target_col];< / div >
< div class = "line" > < a name = "l00603" > < / a > < span class = "lineno" > 603< / span >   upper_bounds_[target_col] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[target_col];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00604" > < / a > < span class = "lineno" > 604< / span >   < / div >
< div class = "line" > < a name = "l00605" > < / a > < span class = "lineno" > 605< / span >   < span class = "keywordtype" > int< / span > num_merged = 0;< / div >
< div class = "line" > < a name = "l00606" > < / a > < span class = "lineno" > 606< / span >   < span class = "keywordflow" > for< / span > (++i; i < sorted_columns.size(); ++i) {< / div >
< div class = "line" > < a name = "l00607" > < / a > < span class = "lineno" > 607< / span >   < span class = "keywordflow" > if< / span > (sorted_columns[i].< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > != target_representative) < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00608" > < / a > < span class = "lineno" > 608< / span >   < span class = "keywordflow" > if< / span > (std::abs(sorted_columns[i].< a class = "code" href = "preprocessor_8cc.html#a72ecc219428436501225dd42f67c73a9" > scaled_cost< / a > - target_scaled_cost) > =< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00609" > < / a > < span class = "lineno" > 609< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .preprocessor_zero_tolerance()) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00610" > < / a > < span class = "lineno" > 610< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00611" > < / a > < span class = "lineno" > 611< / span >   }< / div >
< div class = "line" > < a name = "l00612" > < / a > < span class = "lineno" > 612< / span >   ++num_merged;< / div >
< div class = "line" > < a name = "l00613" > < / a > < span class = "lineno" > 613< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = sorted_columns[i].col;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00614" > < / a > < span class = "lineno" > 614< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00615" > < / a > < span class = "lineno" > 615< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
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< div class = "line" > < a name = "l00616" > < / a > < span class = "lineno" > 616< / span >   lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = lower_bound;< / div >
< div class = "line" > < a name = "l00617" > < / a > < span class = "lineno" > 617< / span >   upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = upper_bound;< / div >
< div class = "line" > < a name = "l00618" > < / a > < span class = "lineno" > 618< / span >   merged_columns_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = target_col;< / div >
< div class = "line" > < a name = "l00619" > < / a > < span class = "lineno" > 619< / span >   < / div >
< div class = "line" > < a name = "l00620" > < / a > < span class = "lineno" > 620< / span >   < span class = "comment" > // This is a bit counter intuitive, but when a column is divided by x,< / span > < / div >
< div class = "line" > < a name = "l00621" > < / a > < span class = "lineno" > 621< / span >   < span class = "comment" > // the corresponding bounds have to be multiplied by x.< / span > < / div >
< div class = "line" > < a name = "l00622" > < / a > < span class = "lineno" > 622< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > bound_factor =< / div >
< div class = "line" > < a name = "l00623" > < / a > < span class = "lineno" > 623< / span >   column_factors_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] / column_factors_[target_col];< / div >
< div class = "line" > < a name = "l00624" > < / a > < span class = "lineno" > 624< / span >   < / div >
< div class = "line" > < a name = "l00625" > < / a > < span class = "lineno" > 625< / span >   < span class = "comment" > // We need to shift the variable so that a basic solution of the new< / span > < / div >
< div class = "line" > < a name = "l00626" > < / a > < span class = "lineno" > 626< / span >   < span class = "comment" > // problem can easily be converted to a basic solution of the original< / span > < / div >
< div class = "line" > < a name = "l00627" > < / a > < span class = "lineno" > 627< / span >   < span class = "comment" > // problem.< / span > < / div >
< div class = "line" > < a name = "l00628" > < / a > < span class = "lineno" > 628< / span >   < / div >
< div class = "line" > < a name = "l00629" > < / a > < span class = "lineno" > 629< / span >   < span class = "comment" > // A feasible value for the variable must be chosen, and the variable must< / span > < / div >
< div class = "line" > < a name = "l00630" > < / a > < span class = "lineno" > 630< / span >   < span class = "comment" > // be shifted by this value. This is done to make sure that it will be< / span > < / div >
< div class = "line" > < a name = "l00631" > < / a > < span class = "lineno" > 631< / span >   < span class = "comment" > // possible to recreate a basic solution of the original problem from a< / span > < / div >
< div class = "line" > < a name = "l00632" > < / a > < span class = "lineno" > 632< / span >   < span class = "comment" > // basic solution of the pre-solved problem during post-solve.< / span > < / div >
< div class = "line" > < a name = "l00633" > < / a > < span class = "lineno" > 633< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > target_value =< / div >
< div class = "line" > < a name = "l00634" > < / a > < span class = "lineno" > 634< / span >   MinInMagnitudeOrZeroIfInfinite(lower_bound, upper_bound);< / div >
< div class = "line" > < a name = "l00635" > < / a > < span class = "lineno" > 635< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_diff = (lower_bound - target_value) * bound_factor;< / div >
< div class = "line" > < a name = "l00636" > < / a > < span class = "lineno" > 636< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_diff = (upper_bound - target_value) * bound_factor;< / div >
< div class = "line" > < a name = "l00637" > < / a > < span class = "lineno" > 637< / span >   < span class = "keywordflow" > if< / span > (bound_factor < 0.0) {< / div >
< div class = "line" > < a name = "l00638" > < / a > < span class = "lineno" > 638< / span >   std::swap(lower_diff, upper_diff);< / div >
< div class = "line" > < a name = "l00639" > < / a > < span class = "lineno" > 639< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00640" > < / a > < span class = "lineno" > 640< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093" > SetVariableBounds< / a > (< / div >
< div class = "line" > < a name = "l00641" > < / a > < span class = "lineno" > 641< / span >   target_col, lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[target_col] + lower_diff,< / div >
< div class = "line" > < a name = "l00642" > < / a > < span class = "lineno" > 642< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[target_col] + upper_diff);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00643" > < / a > < span class = "lineno" > 643< / span >   SubtractColumnMultipleFromConstraintBound(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , target_value, lp);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00644" > < / a > < span class = "lineno" > 644< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a43d852970601d1a979844a0aae79ed3d" > MarkColumnForDeletionWithState< / a > (< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00645" > < / a > < span class = "lineno" > 645< / span >   < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , target_value,< / div >
< div class = "line" > < a name = "l00646" > < / a > < span class = "lineno" > 646< / span >   ComputeVariableStatus(target_value, lower_bound, upper_bound));< / div >
< div class = "line" > < a name = "l00647" > < / a > < span class = "lineno" > 647< / span >   }< / div >
< div class = "line" > < a name = "l00648" > < / a > < span class = "lineno" > 648< / span >   < / div >
< div class = "line" > < a name = "l00649" > < / a > < span class = "lineno" > 649< / span >   < span class = "comment" > // If at least one column was merged, the target column must be shifted like< / span > < / div >
< div class = "line" > < a name = "l00650" > < / a > < span class = "lineno" > 650< / span >   < span class = "comment" > // the other columns in the same equivalence class for the same reason (see< / span > < / div >
< div class = "line" > < a name = "l00651" > < / a > < span class = "lineno" > 651< / span >   < span class = "comment" > // above).< / span > < / div >
< div class = "line" > < a name = "l00652" > < / a > < span class = "lineno" > 652< / span >   < span class = "keywordflow" > if< / span > (num_merged > 0) {< / div >
< div class = "line" > < a name = "l00653" > < / a > < span class = "lineno" > 653< / span >   merged_columns_[target_col] = target_col;< / div >
< div class = "line" > < a name = "l00654" > < / a > < span class = "lineno" > 654< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > target_value = MinInMagnitudeOrZeroIfInfinite(< / div >
< div class = "line" > < a name = "l00655" > < / a > < span class = "lineno" > 655< / span >   lower_bounds_[target_col], upper_bounds_[target_col]);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00656" > < / a > < span class = "lineno" > 656< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093" > SetVariableBounds< / a > (< / div >
< div class = "line" > < a name = "l00657" > < / a > < span class = "lineno" > 657< / span >   target_col, lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[target_col] - target_value,< / div >
< div class = "line" > < a name = "l00658" > < / a > < span class = "lineno" > 658< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[target_col] - target_value);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00659" > < / a > < span class = "lineno" > 659< / span >   SubtractColumnMultipleFromConstraintBound(target_col, target_value, lp);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00660" > < / a > < span class = "lineno" > 660< / span >   new_lower_bounds_[target_col] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[target_col];< / div >
< div class = "line" > < a name = "l00661" > < / a > < span class = "lineno" > 661< / span >   new_upper_bounds_[target_col] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[target_col];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00662" > < / a > < span class = "lineno" > 662< / span >   }< / div >
< div class = "line" > < a name = "l00663" > < / a > < span class = "lineno" > 663< / span >   }< / div >
< div class = "line" > < a name = "l00664" > < / a > < span class = "lineno" > 664< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00665" > < / a > < span class = "lineno" > 665< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac59fd9cddfe284bf9dc7581ed631ce8d" > DeleteColumns< / a > (column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a6afccf8c0c7105ba45b8d7bd47830239" > GetMarkedColumns< / a > ());< / div >
< div class = "line" > < a name = "l00666" > < / a > < span class = "lineno" > 666< / span >   < span class = "keywordflow" > return< / span > !column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00667" > < / a > < span class = "lineno" > 667< / span >   }< / div >
< div class = "line" > < a name = "l00668" > < / a > < span class = "lineno" > 668< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00669" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_proportional_column_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 669< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_proportional_column_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > ProportionalColumnPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l00670" > < / a > < span class = "lineno" > 670< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00671" > < / a > < span class = "lineno" > 671< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00672" > < / a > < span class = "lineno" > 672< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00673" > < / a > < span class = "lineno" > 673< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#ab73f53154d99b3cd13dae72fd418985d" > RestoreDeletedColumns< / a > (solution);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00674" > < / a > < span class = "lineno" > 674< / span >   < / div >
< div class = "line" > < a name = "l00675" > < / a > < span class = "lineno" > 675< / span >   < span class = "comment" > // The rest of this function is to unmerge the columns so that the solution be< / span > < / div >
< div class = "line" > < a name = "l00676" > < / a > < span class = "lineno" > 676< / span >   < span class = "comment" > // primal-feasible.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00677" > < / a > < span class = "lineno" > 677< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = merged_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
< div class = "line" > < a name = "l00678" > < / a > < span class = "lineno" > 678< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseBooleanRow< / a > is_representative_basic(num_cols, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00679" > < / a > < span class = "lineno" > 679< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseBooleanRow< / a > is_distance_to_upper_bound(num_cols, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l00680" > < / a > < span class = "lineno" > 680< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseRow< / a > distance_to_bound(num_cols, 0.0);< / div >
< div class = "line" > < a name = "l00681" > < / a > < span class = "lineno" > 681< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseRow< / a > wanted_value(num_cols, 0.0);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00682" > < / a > < span class = "lineno" > 682< / span >   < / div >
< div class = "line" > < a name = "l00683" > < / a > < span class = "lineno" > 683< / span >   < span class = "comment" > // The first pass is a loop over the representatives to compute the current< / span > < / div >
< div class = "line" > < a name = "l00684" > < / a > < span class = "lineno" > 684< / span >   < span class = "comment" > // distance to the new bounds.< / span > < / div >
< div class = "line" > < a name = "l00685" > < / a > < span class = "lineno" > 685< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00686" > < / a > < span class = "lineno" > 686< / span >   < span class = "keywordflow" > if< / span > (merged_columns_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00687" > < / a > < span class = "lineno" > 687< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00688" > < / a > < span class = "lineno" > 688< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > distance_to_upper_bound = new_upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] - < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ;< / div >
< div class = "line" > < a name = "l00689" > < / a > < span class = "lineno" > 689< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > distance_to_lower_bound = < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > - new_lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00690" > < / a > < span class = "lineno" > 690< / span >   < span class = "keywordflow" > if< / span > (distance_to_upper_bound < distance_to_lower_bound) {< / div >
< div class = "line" > < a name = "l00691" > < / a > < span class = "lineno" > 691< / span >   distance_to_bound[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = distance_to_upper_bound;< / div >
< div class = "line" > < a name = "l00692" > < / a > < span class = "lineno" > 692< / span >   is_distance_to_upper_bound[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00693" > < / a > < span class = "lineno" > 693< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00694" > < / a > < span class = "lineno" > 694< / span >   distance_to_bound[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = distance_to_lower_bound;< / div >
< div class = "line" > < a name = "l00695" > < / a > < span class = "lineno" > 695< / span >   is_distance_to_upper_bound[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00696" > < / a > < span class = "lineno" > 696< / span >   }< / div >
< div class = "line" > < a name = "l00697" > < / a > < span class = "lineno" > 697< / span >   is_representative_basic[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] =< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00698" > < / a > < span class = "lineno" > 698< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00699" > < / a > < span class = "lineno" > 699< / span >   < / div >
< div class = "line" > < a name = "l00700" > < / a > < span class = "lineno" > 700< / span >   < span class = "comment" > // Restore the representative value to a feasible value of the initial< / span > < / div >
< div class = "line" > < a name = "l00701" > < / a > < span class = "lineno" > 701< / span >   < span class = "comment" > // variable. Now all the merged variable are at a feasible value.< / span > < / div >
< div class = "line" > < a name = "l00702" > < / a > < span class = "lineno" > 702< / span >   wanted_value[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00703" > < / a > < span class = "lineno" > 703< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = MinInMagnitudeOrZeroIfInfinite(< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00704" > < / a > < span class = "lineno" > 704< / span >   lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ], upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00705" > < / a > < span class = "lineno" > 705< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = ComputeVariableStatus(< / div >
< div class = "line" > < a name = "l00706" > < / a > < span class = "lineno" > 706< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ], lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ], upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00707" > < / a > < span class = "lineno" > 707< / span >   }< / div >
< div class = "line" > < a name = "l00708" > < / a > < span class = "lineno" > 708< / span >   }< / div >
< div class = "line" > < a name = "l00709" > < / a > < span class = "lineno" > 709< / span >   < / div >
< div class = "line" > < a name = "l00710" > < / a > < span class = "lineno" > 710< / span >   < span class = "comment" > // Second pass to correct the values.< / span > < / div >
< div class = "line" > < a name = "l00711" > < / a > < span class = "lineno" > 711< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00712" > < / a > < span class = "lineno" > 712< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > = merged_columns_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00713" > < / a > < span class = "lineno" > 713< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > != < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l00714" > < / a > < span class = "lineno" > 714< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (distance_to_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ])) {< / div >
< div class = "line" > < a name = "l00715" > < / a > < span class = "lineno" > 715< / span >   < span class = "comment" > // If the distance is finite, then each variable is set to its< / span > < / div >
< div class = "line" > < a name = "l00716" > < / a > < span class = "lineno" > 716< / span >   < span class = "comment" > // corresponding bound (the one from which the distance is computed) and< / span > < / div >
< div class = "line" > < a name = "l00717" > < / a > < span class = "lineno" > 717< / span >   < span class = "comment" > // is then changed by as much as possible until the distance is zero.< / span > < / div >
< div class = "line" > < a name = "l00718" > < / a > < span class = "lineno" > 718< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > bound_factor =< / div >
< div class = "line" > < a name = "l00719" > < / a > < span class = "lineno" > 719< / span >   column_factors_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] / column_factors_[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ];< / div >
< div class = "line" > < a name = "l00720" > < / a > < span class = "lineno" > 720< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > scaled_distance =< / div >
< div class = "line" > < a name = "l00721" > < / a > < span class = "lineno" > 721< / span >   distance_to_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] / std::abs(bound_factor);< / div >
< div class = "line" > < a name = "l00722" > < / a > < span class = "lineno" > 722< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > width = upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] - lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l00723" > < / a > < span class = "lineno" > 723< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > to_upper_bound =< / div >
< div class = "line" > < a name = "l00724" > < / a > < span class = "lineno" > 724< / span >   (bound_factor > 0.0) == is_distance_to_upper_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ];< / div >
< div class = "line" > < a name = "l00725" > < / a > < span class = "lineno" > 725< / span >   < span class = "keywordflow" > if< / span > (width < = scaled_distance) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00726" > < / a > < span class = "lineno" > 726< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] =< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00727" > < / a > < span class = "lineno" > 727< / span >   to_upper_bound ? lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] : upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00728" > < / a > < span class = "lineno" > 728< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] =< / div >
< div class = "line" > < a name = "l00729" > < / a > < span class = "lineno" > 729< / span >   ComputeVariableStatus(solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ],< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00730" > < / a > < span class = "lineno" > 730< / span >   lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ], upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
< div class = "line" > < a name = "l00731" > < / a > < span class = "lineno" > 731< / span >   distance_to_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] -= width * std::abs(bound_factor);< / div >
< div class = "line" > < a name = "l00732" > < / a > < span class = "lineno" > 732< / span >   } < span class = "keywordflow" > else< / span > {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00733" > < / a > < span class = "lineno" > 733< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] =< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00734" > < / a > < span class = "lineno" > 734< / span >   to_upper_bound ? upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] - scaled_distance< / div >
< div class = "line" > < a name = "l00735" > < / a > < span class = "lineno" > 735< / span >   : lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] + scaled_distance;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00736" > < / a > < span class = "lineno" > 736< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] =< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00737" > < / a > < span class = "lineno" > 737< / span >   is_representative_basic[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ]< / div >
< div class = "line" > < a name = "l00738" > < / a > < span class = "lineno" > 738< / span >   ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00739" > < / a > < span class = "lineno" > 739< / span >   : ComputeVariableStatus(solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ],< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00740" > < / a > < span class = "lineno" > 740< / span >   lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ],< / div >
< div class = "line" > < a name = "l00741" > < / a > < span class = "lineno" > 741< / span >   upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
< div class = "line" > < a name = "l00742" > < / a > < span class = "lineno" > 742< / span >   distance_to_bound[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] = 0.0;< / div >
< div class = "line" > < a name = "l00743" > < / a > < span class = "lineno" > 743< / span >   is_representative_basic[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00744" > < / a > < span class = "lineno" > 744< / span >   }< / div >
< div class = "line" > < a name = "l00745" > < / a > < span class = "lineno" > 745< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00746" > < / a > < span class = "lineno" > 746< / span >   < span class = "comment" > // If the distance is not finite, then only one variable needs to be< / span > < / div >
< div class = "line" > < a name = "l00747" > < / a > < span class = "lineno" > 747< / span >   < span class = "comment" > // changed from its current feasible value in order to have a< / span > < / div >
< div class = "line" > < a name = "l00748" > < / a > < span class = "lineno" > 748< / span >   < span class = "comment" > // primal-feasible solution.< / span > < / div >
< div class = "line" > < a name = "l00749" > < / a > < span class = "lineno" > 749< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > error = wanted_value[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ];< / div >
< div class = "line" > < a name = "l00750" > < / a > < span class = "lineno" > 750< / span >   < span class = "keywordflow" > if< / span > (error == 0.0) {< / div >
< div class = "line" > < a name = "l00751" > < / a > < span class = "lineno" > 751< / span >   < span class = "keywordflow" > if< / span > (is_representative_basic[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ]) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00752" > < / a > < span class = "lineno" > 752< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00753" > < / a > < span class = "lineno" > 753< / span >   is_representative_basic[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00754" > < / a > < span class = "lineno" > 754< / span >   }< / div >
< div class = "line" > < a name = "l00755" > < / a > < span class = "lineno" > 755< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00756" > < / a > < span class = "lineno" > 756< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > bound_factor =< / div >
< div class = "line" > < a name = "l00757" > < / a > < span class = "lineno" > 757< / span >   column_factors_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] / column_factors_[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ];< / div >
< div class = "line" > < a name = "l00758" > < / a > < span class = "lineno" > 758< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > use_this_variable =< / div >
< div class = "line" > < a name = "l00759" > < / a > < span class = "lineno" > 759< / span >   (error * bound_factor > 0.0) ? (upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > )< / div >
< div class = "line" > < a name = "l00760" > < / a > < span class = "lineno" > 760< / span >   : (lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l00761" > < / a > < span class = "lineno" > 761< / span >   < span class = "keywordflow" > if< / span > (use_this_variable) {< / div >
< div class = "line" > < a name = "l00762" > < / a > < span class = "lineno" > 762< / span >   wanted_value[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] = 0.0;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00763" > < / a > < span class = "lineno" > 763< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] += error / bound_factor;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00764" > < / a > < span class = "lineno" > 764< / span >   < span class = "keywordflow" > if< / span > (is_representative_basic[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ]) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00765" > < / a > < span class = "lineno" > 765< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00766" > < / a > < span class = "lineno" > 766< / span >   is_representative_basic[< a class = "code" href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > ] = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00767" > < / a > < span class = "lineno" > 767< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00768" > < / a > < span class = "lineno" > 768< / span >   < span class = "comment" > // This should not happen on an OPTIMAL or FEASIBLE solution.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00769" > < / a > < span class = "lineno" > 769< / span >   DCHECK(solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a15eb0790f4f62ad63676f55e4ba7d2bb" > status< / a > != < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293" > ProblemStatus::OPTIMAL< / a > & & < / div >
< div class = "line" > < a name = "l00770" > < / a > < span class = "lineno" > 770< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a15eb0790f4f62ad63676f55e4ba7d2bb" > status< / a > != ProblemStatus::PRIMAL_FEASIBLE);< / div >
< div class = "line" > < a name = "l00771" > < / a > < span class = "lineno" > 771< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00772" > < / a > < span class = "lineno" > 772< / span >   }< / div >
< div class = "line" > < a name = "l00773" > < / a > < span class = "lineno" > 773< / span >   }< / div >
< div class = "line" > < a name = "l00774" > < / a > < span class = "lineno" > 774< / span >   }< / div >
< div class = "line" > < a name = "l00775" > < / a > < span class = "lineno" > 775< / span >   }< / div >
< div class = "line" > < a name = "l00776" > < / a > < span class = "lineno" > 776< / span >   }< / div >
< div class = "line" > < a name = "l00777" > < / a > < span class = "lineno" > 777< / span >   }< / div >
< div class = "line" > < a name = "l00778" > < / a > < span class = "lineno" > 778< / span >   }< / div >
< div class = "line" > < a name = "l00779" > < / a > < span class = "lineno" > 779< / span >   < / div >
< div class = "line" > < a name = "l00780" > < / a > < span class = "lineno" > 780< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00781" > < / a > < span class = "lineno" > 781< / span >   < span class = "comment" > // ProportionalRowPreprocessor< / span > < / div >
< div class = "line" > < a name = "l00782" > < / a > < span class = "lineno" > 782< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l00783" > < / a > < span class = "lineno" > 783< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00784" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_proportional_row_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 784< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_proportional_row_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > ProportionalRowPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l00785" > < / a > < span class = "lineno" > 785< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00786" > < / a > < span class = "lineno" > 786< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00787" > < / a > < span class = "lineno" > 787< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ();< / div >
< div class = "line" > < a name = "l00788" > < / a > < span class = "lineno" > 788< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > SparseMatrix< / a > & transpose = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a2175025047722705a3af86e54229f9cd" > GetTransposeSparseMatrix< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00789" > < / a > < span class = "lineno" > 789< / span >   < / div >
< div class = "line" > < a name = "l00790" > < / a > < span class = "lineno" > 790< / span >   < span class = "comment" > // Use the first coefficient of each row to compute the proportionality< / span > < / div >
< div class = "line" > < a name = "l00791" > < / a > < span class = "lineno" > 791< / span >   < span class = "comment" > // factor. Note that the sign is important.< / span > < / div >
< div class = "line" > < a name = "l00792" > < / a > < span class = "lineno" > 792< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00793" > < / a > < span class = "lineno" > 793< / span >   < span class = "comment" > // Note(user): using the first coefficient may not give the best precision.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00794" > < / a > < span class = "lineno" > 794< / span >   row_factors_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_rows, 0.0);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00795" > < / a > < span class = "lineno" > 795< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00796" > < / a > < span class = "lineno" > 796< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_column.html" > SparseColumn< / a > & row_transpose = transpose.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ));< / div >
< div class = "line" > < a name = "l00797" > < / a > < span class = "lineno" > 797< / span >   < span class = "keywordflow" > if< / span > (!row_transpose.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ()) {< / div >
< div class = "line" > < a name = "l00798" > < / a > < span class = "lineno" > 798< / span >   row_factors_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = row_transpose.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ae7c152aafe19515204c65dadcdc876d6" > GetFirstCoefficient< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00799" > < / a > < span class = "lineno" > 799< / span >   }< / div >
< div class = "line" > < a name = "l00800" > < / a > < span class = "lineno" > 800< / span >   }< / div >
< div class = "line" > < a name = "l00801" > < / a > < span class = "lineno" > 801< / span >   < / div >
< div class = "line" > < a name = "l00802" > < / a > < span class = "lineno" > 802< / span >   < span class = "comment" > // The new row bounds (only meaningful for the proportional rows).< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00803" > < / a > < span class = "lineno" > 803< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseColumn< / a > < a class = "code" href = "sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0" > lower_bounds< / a > (num_rows, -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l00804" > < / a > < span class = "lineno" > 804< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseColumn< / a > < a class = "code" href = "sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3" > upper_bounds< / a > (num_rows, +< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00805" > < / a > < span class = "lineno" > 805< / span >   < / div >
< div class = "line" > < a name = "l00806" > < / a > < span class = "lineno" > 806< / span >   < span class = "comment" > // Where the new bounds are coming from. Only for the constraints that stay< / span > < / div >
< div class = "line" > < a name = "l00807" > < / a > < span class = "lineno" > 807< / span >   < span class = "comment" > // in the lp and are modified, kInvalidRow otherwise.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00808" > < / a > < span class = "lineno" > 808< / span >   upper_bound_sources_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_rows, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > );< / div >
< div class = "line" > < a name = "l00809" > < / a > < span class = "lineno" > 809< / span >   lower_bound_sources_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_rows, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00810" > < / a > < span class = "lineno" > 810< / span >   < / div >
< div class = "line" > < a name = "l00811" > < / a > < span class = "lineno" > 811< / span >   < span class = "comment" > // Initialization.< / span > < / div >
< div class = "line" > < a name = "l00812" > < / a > < span class = "lineno" > 812< / span >   < span class = "comment" > // We need the first representative of each proportional row class to point to< / span > < / div >
< div class = "line" > < a name = "l00813" > < / a > < span class = "lineno" > 813< / span >   < span class = "comment" > // itself for the loop below. TODO(user): Already return such a mapping from< / span > < / div >
< div class = "line" > < a name = "l00814" > < / a > < span class = "lineno" > 814< / span >   < span class = "comment" > // FindProportionalColumns()?< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00815" > < / a > < span class = "lineno" > 815< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > ColMapping< / a > mapping = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ac9bef291f9b941569978d0f075144abf" > FindProportionalColumns< / a > (< / div >
< div class = "line" > < a name = "l00816" > < / a > < span class = "lineno" > 816< / span >   transpose, < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .preprocessor_zero_tolerance());< / div >
< div class = "line" > < a name = "l00817" > < / a > < span class = "lineno" > 817< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseBooleanColumn< / a > is_a_representative(num_rows, < span class = "keyword" > false< / span > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00818" > < / a > < span class = "lineno" > 818< / span >   < span class = "keywordtype" > int< / span > num_proportional_rows = 0;< / div >
< div class = "line" > < a name = "l00819" > < / a > < span class = "lineno" > 819< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l00820" > < / a > < span class = "lineno" > 820< / span >   < span class = "keyword" > const< / span > ColIndex representative_row_as_col = mapping[< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )];< / div >
< div class = "line" > < a name = "l00821" > < / a > < span class = "lineno" > 821< / span >   < span class = "keywordflow" > if< / span > (representative_row_as_col != < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l00822" > < / a > < span class = "lineno" > 822< / span >   mapping[representative_row_as_col] = representative_row_as_col;< / div >
< div class = "line" > < a name = "l00823" > < / a > < span class = "lineno" > 823< / span >   is_a_representative[< a class = "code" href = "namespaceoperations__research_1_1glop.html#ab65a327cfc2a74c15fa26b91f19acc64" > ColToRowIndex< / a > (representative_row_as_col)] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00824" > < / a > < span class = "lineno" > 824< / span >   ++num_proportional_rows;< / div >
< div class = "line" > < a name = "l00825" > < / a > < span class = "lineno" > 825< / span >   }< / div >
< div class = "line" > < a name = "l00826" > < / a > < span class = "lineno" > 826< / span >   }< / div >
< div class = "line" > < a name = "l00827" > < / a > < span class = "lineno" > 827< / span >   < / div >
< div class = "line" > < a name = "l00828" > < / a > < span class = "lineno" > 828< / span >   < span class = "comment" > // Compute the bound of each representative as implied by the rows< / span > < / div >
< div class = "line" > < a name = "l00829" > < / a > < span class = "lineno" > 829< / span >   < span class = "comment" > // which are proportional to it. Also keep the source row of each bound.< / span > < / div >
< div class = "line" > < a name = "l00830" > < / a > < span class = "lineno" > 830< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l00831" > < / a > < span class = "lineno" > 831< / span >   < span class = "keyword" > const< / span > ColIndex row_as_col = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l00832" > < / a > < span class = "lineno" > 832< / span >   < span class = "keywordflow" > if< / span > (mapping[row_as_col] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l00833" > < / a > < span class = "lineno" > 833< / span >   < span class = "comment" > // For now, delete all the rows that are proportional to another one.< / span > < / div >
< div class = "line" > < a name = "l00834" > < / a > < span class = "lineno" > 834< / span >   < span class = "comment" > // Note that we will unmark the final representative of this class later.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00835" > < / a > < span class = "lineno" > 835< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2087c8376c03c247099a989f2990e6e8" > MarkRowForDeletion< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00836" > < / a > < span class = "lineno" > 836< / span >   < span class = "keyword" > const< / span > RowIndex representative_row = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab65a327cfc2a74c15fa26b91f19acc64" > ColToRowIndex< / a > (mapping[row_as_col]);< / div >
< div class = "line" > < a name = "l00837" > < / a > < span class = "lineno" > 837< / span >   < / div >
< div class = "line" > < a name = "l00838" > < / a > < span class = "lineno" > 838< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > factor =< / div >
< div class = "line" > < a name = "l00839" > < / a > < span class = "lineno" > 839< / span >   row_factors_[representative_row] / row_factors_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00840" > < / a > < span class = "lineno" > 840< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > implied_lb = factor * lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l00841" > < / a > < span class = "lineno" > 841< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > implied_ub = factor * lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00842" > < / a > < span class = "lineno" > 842< / span >   < span class = "keywordflow" > if< / span > (factor < 0.0) {< / div >
< div class = "line" > < a name = "l00843" > < / a > < span class = "lineno" > 843< / span >   std::swap(implied_lb, implied_ub);< / div >
< div class = "line" > < a name = "l00844" > < / a > < span class = "lineno" > 844< / span >   }< / div >
< div class = "line" > < a name = "l00845" > < / a > < span class = "lineno" > 845< / span >   < / div >
< div class = "line" > < a name = "l00846" > < / a > < span class = "lineno" > 846< / span >   < span class = "comment" > // TODO(user): if the bounds are equal, use the largest row in magnitude?< / span > < / div >
< div class = "line" > < a name = "l00847" > < / a > < span class = "lineno" > 847< / span >   < span class = "keywordflow" > if< / span > (implied_lb > = < a class = "code" href = "sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0" > lower_bounds< / a > [representative_row]) {< / div >
< div class = "line" > < a name = "l00848" > < / a > < span class = "lineno" > 848< / span >   < a class = "code" href = "sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0" > lower_bounds< / a > [representative_row] = implied_lb;< / div >
< div class = "line" > < a name = "l00849" > < / a > < span class = "lineno" > 849< / span >   lower_bound_sources_[representative_row] = < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ;< / div >
< div class = "line" > < a name = "l00850" > < / a > < span class = "lineno" > 850< / span >   }< / div >
< div class = "line" > < a name = "l00851" > < / a > < span class = "lineno" > 851< / span >   < span class = "keywordflow" > if< / span > (implied_ub < = < a class = "code" href = "sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3" > upper_bounds< / a > [representative_row]) {< / div >
< div class = "line" > < a name = "l00852" > < / a > < span class = "lineno" > 852< / span >   < a class = "code" href = "sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3" > upper_bounds< / a > [representative_row] = implied_ub;< / div >
< div class = "line" > < a name = "l00853" > < / a > < span class = "lineno" > 853< / span >   upper_bound_sources_[representative_row] = < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ;< / div >
< div class = "line" > < a name = "l00854" > < / a > < span class = "lineno" > 854< / span >   }< / div >
< div class = "line" > < a name = "l00855" > < / a > < span class = "lineno" > 855< / span >   }< / div >
< div class = "line" > < a name = "l00856" > < / a > < span class = "lineno" > 856< / span >   }< / div >
< div class = "line" > < a name = "l00857" > < / a > < span class = "lineno" > 857< / span >   < / div >
< div class = "line" > < a name = "l00858" > < / a > < span class = "lineno" > 858< / span >   < span class = "comment" > // For maximum precision, and also to simplify the postsolve, we choose< / span > < / div >
< div class = "line" > < a name = "l00859" > < / a > < span class = "lineno" > 859< / span >   < span class = "comment" > // a representative for each class of proportional columns that has at least< / span > < / div >
< div class = "line" > < a name = "l00860" > < / a > < span class = "lineno" > 860< / span >   < span class = "comment" > // one of the two tightest bounds.< / span > < / div >
< div class = "line" > < a name = "l00861" > < / a > < span class = "lineno" > 861< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l00862" > < / a > < span class = "lineno" > 862< / span >   < span class = "keywordflow" > if< / span > (!is_a_representative[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00863" > < / a > < span class = "lineno" > 863< / span >   < span class = "keyword" > const< / span > RowIndex lower_source = lower_bound_sources_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l00864" > < / a > < span class = "lineno" > 864< / span >   < span class = "keyword" > const< / span > RowIndex upper_source = upper_bound_sources_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l00865" > < / a > < span class = "lineno" > 865< / span >   lower_bound_sources_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ;< / div >
< div class = "line" > < a name = "l00866" > < / a > < span class = "lineno" > 866< / span >   upper_bound_sources_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ;< / div >
< div class = "line" > < a name = "l00867" > < / a > < span class = "lineno" > 867< / span >   DCHECK_NE(lower_source, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > );< / div >
< div class = "line" > < a name = "l00868" > < / a > < span class = "lineno" > 868< / span >   DCHECK_NE(upper_source, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > );< / div >
< div class = "line" > < a name = "l00869" > < / a > < span class = "lineno" > 869< / span >   < span class = "keywordflow" > if< / span > (lower_source == upper_source) {< / div >
< div class = "line" > < a name = "l00870" > < / a > < span class = "lineno" > 870< / span >   < span class = "comment" > // In this case, a simple change of representative is enough.< / span > < / div >
< div class = "line" > < a name = "l00871" > < / a > < span class = "lineno" > 871< / span >   < span class = "comment" > // The constraint bounds of the representative will not change.< / span > < / div >
< div class = "line" > < a name = "l00872" > < / a > < span class = "lineno" > 872< / span >   DCHECK_NE(lower_source, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > );< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00873" > < / a > < span class = "lineno" > 873< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2e33d930193e16f06f3c4d0309ff62c2" > UnmarkRow< / a > (lower_source);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00874" > < / a > < span class = "lineno" > 874< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00875" > < / a > < span class = "lineno" > 875< / span >   < span class = "comment" > // Report ProblemStatus::PRIMAL_INFEASIBLE if the new lower bound is not< / span > < / div >
< div class = "line" > < a name = "l00876" > < / a > < span class = "lineno" > 876< / span >   < span class = "comment" > // lower than the new upper bound modulo the default tolerance.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00877" > < / a > < span class = "lineno" > 877< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (< a class = "code" href = "sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0" > lower_bounds< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ],< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00878" > < / a > < span class = "lineno" > 878< / span >   < a class = "code" href = "sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3" > upper_bounds< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ])) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00879" > < / a > < span class = "lineno" > 879< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::PRIMAL_INFEASIBLE;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00880" > < / a > < span class = "lineno" > 880< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00881" > < / a > < span class = "lineno" > 881< / span >   }< / div >
< div class = "line" > < a name = "l00882" > < / a > < span class = "lineno" > 882< / span >   < / div >
< div class = "line" > < a name = "l00883" > < / a > < span class = "lineno" > 883< / span >   < span class = "comment" > // Special case for fixed rows.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00884" > < / a > < span class = "lineno" > 884< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[lower_source] ==< / div >
< div class = "line" > < a name = "l00885" > < / a > < span class = "lineno" > 885< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[lower_source]) {< / div >
< div class = "line" > < a name = "l00886" > < / a > < span class = "lineno" > 886< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2e33d930193e16f06f3c4d0309ff62c2" > UnmarkRow< / a > (lower_source);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00887" > < / a > < span class = "lineno" > 887< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00888" > < / a > < span class = "lineno" > 888< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00889" > < / a > < span class = "lineno" > 889< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[upper_source] ==< / div >
< div class = "line" > < a name = "l00890" > < / a > < span class = "lineno" > 890< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[upper_source]) {< / div >
< div class = "line" > < a name = "l00891" > < / a > < span class = "lineno" > 891< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2e33d930193e16f06f3c4d0309ff62c2" > UnmarkRow< / a > (upper_source);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00892" > < / a > < span class = "lineno" > 892< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00893" > < / a > < span class = "lineno" > 893< / span >   }< / div >
< div class = "line" > < a name = "l00894" > < / a > < span class = "lineno" > 894< / span >   < / div >
< div class = "line" > < a name = "l00895" > < / a > < span class = "lineno" > 895< / span >   < span class = "comment" > // This is the only case where a more complex postsolve is needed.< / span > < / div >
< div class = "line" > < a name = "l00896" > < / a > < span class = "lineno" > 896< / span >   < span class = "comment" > // To maximize precision, the class representative is changed to either< / span > < / div >
< div class = "line" > < a name = "l00897" > < / a > < span class = "lineno" > 897< / span >   < span class = "comment" > // upper_source or lower_source depending of which row has the largest< / span > < / div >
< div class = "line" > < a name = "l00898" > < / a > < span class = "lineno" > 898< / span >   < span class = "comment" > // proportionality factor.< / span > < / div >
< div class = "line" > < a name = "l00899" > < / a > < span class = "lineno" > 899< / span >   RowIndex new_representative = lower_source;< / div >
< div class = "line" > < a name = "l00900" > < / a > < span class = "lineno" > 900< / span >   RowIndex other = upper_source;< / div >
< div class = "line" > < a name = "l00901" > < / a > < span class = "lineno" > 901< / span >   < span class = "keywordflow" > if< / span > (std::abs(row_factors_[new_representative]) < < / div >
< div class = "line" > < a name = "l00902" > < / a > < span class = "lineno" > 902< / span >   std::abs(row_factors_[other])) {< / div >
< div class = "line" > < a name = "l00903" > < / a > < span class = "lineno" > 903< / span >   std::swap(new_representative, other);< / div >
< div class = "line" > < a name = "l00904" > < / a > < span class = "lineno" > 904< / span >   }< / div >
< div class = "line" > < a name = "l00905" > < / a > < span class = "lineno" > 905< / span >   < / div >
< div class = "line" > < a name = "l00906" > < / a > < span class = "lineno" > 906< / span >   < span class = "comment" > // Initialize the new bounds with the implied ones.< / span > < / div >
< div class = "line" > < a name = "l00907" > < / a > < span class = "lineno" > 907< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > factor =< / div >
< div class = "line" > < a name = "l00908" > < / a > < span class = "lineno" > 908< / span >   row_factors_[new_representative] / row_factors_[other];< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00909" > < / a > < span class = "lineno" > 909< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_lb = factor * lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[other];< / div >
< div class = "line" > < a name = "l00910" > < / a > < span class = "lineno" > 910< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_ub = factor * lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[other];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00911" > < / a > < span class = "lineno" > 911< / span >   < span class = "keywordflow" > if< / span > (factor < 0.0) {< / div >
< div class = "line" > < a name = "l00912" > < / a > < span class = "lineno" > 912< / span >   std::swap(new_lb, new_ub);< / div >
< div class = "line" > < a name = "l00913" > < / a > < span class = "lineno" > 913< / span >   }< / div >
< div class = "line" > < a name = "l00914" > < / a > < span class = "lineno" > 914< / span >   < / div >
< div class = "line" > < a name = "l00915" > < / a > < span class = "lineno" > 915< / span >   lower_bound_sources_[new_representative] = new_representative;< / div >
< div class = "line" > < a name = "l00916" > < / a > < span class = "lineno" > 916< / span >   upper_bound_sources_[new_representative] = new_representative;< / div >
< div class = "line" > < a name = "l00917" > < / a > < span class = "lineno" > 917< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00918" > < / a > < span class = "lineno" > 918< / span >   < span class = "keywordflow" > if< / span > (new_lb > lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[new_representative]) {< / div >
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< div class = "line" > < a name = "l00919" > < / a > < span class = "lineno" > 919< / span >   lower_bound_sources_[new_representative] = other;< / div >
< div class = "line" > < a name = "l00920" > < / a > < span class = "lineno" > 920< / span >   } < span class = "keywordflow" > else< / span > {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00921" > < / a > < span class = "lineno" > 921< / span >   new_lb = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[new_representative];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00922" > < / a > < span class = "lineno" > 922< / span >   }< / div >
< div class = "line" > < a name = "l00923" > < / a > < span class = "lineno" > 923< / span >   < span class = "keywordflow" > if< / span > (new_ub < lp-> constraint_upper_bounds()[new_representative]) {< / div >
< div class = "line" > < a name = "l00924" > < / a > < span class = "lineno" > 924< / span >   upper_bound_sources_[new_representative] = other;< / div >
< div class = "line" > < a name = "l00925" > < / a > < span class = "lineno" > 925< / span >   } < span class = "keywordflow" > else< / span > {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00926" > < / a > < span class = "lineno" > 926< / span >   new_ub = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[new_representative];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00927" > < / a > < span class = "lineno" > 927< / span >   }< / div >
< div class = "line" > < a name = "l00928" > < / a > < span class = "lineno" > 928< / span >   < span class = "keyword" > const< / span > RowIndex new_lower_source =< / div >
< div class = "line" > < a name = "l00929" > < / a > < span class = "lineno" > 929< / span >   lower_bound_sources_[new_representative];< / div >
< div class = "line" > < a name = "l00930" > < / a > < span class = "lineno" > 930< / span >   < span class = "keywordflow" > if< / span > (new_lower_source == upper_bound_sources_[new_representative]) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00931" > < / a > < span class = "lineno" > 931< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2e33d930193e16f06f3c4d0309ff62c2" > UnmarkRow< / a > (new_lower_source);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00932" > < / a > < span class = "lineno" > 932< / span >   lower_bound_sources_[new_representative] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ;< / div >
< div class = "line" > < a name = "l00933" > < / a > < span class = "lineno" > 933< / span >   upper_bound_sources_[new_representative] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ;< / div >
< div class = "line" > < a name = "l00934" > < / a > < span class = "lineno" > 934< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00935" > < / a > < span class = "lineno" > 935< / span >   }< / div >
< div class = "line" > < a name = "l00936" > < / a > < span class = "lineno" > 936< / span >   < / div >
< div class = "line" > < a name = "l00937" > < / a > < span class = "lineno" > 937< / span >   < span class = "comment" > // Take care of small numerical imprecision by making sure that lb < = ub.< / span > < / div >
< div class = "line" > < a name = "l00938" > < / a > < span class = "lineno" > 938< / span >   < span class = "comment" > // Note that if the imprecision was greater than the tolerance, the code< / span > < / div >
< div class = "line" > < a name = "l00939" > < / a > < span class = "lineno" > 939< / span >   < span class = "comment" > // at the beginning of this block would have reported< / span > < / div >
< div class = "line" > < a name = "l00940" > < / a > < span class = "lineno" > 940< / span >   < span class = "comment" > // ProblemStatus::PRIMAL_INFEASIBLE.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00941" > < / a > < span class = "lineno" > 941< / span >   DCHECK(< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (new_lb, new_ub));< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00942" > < / a > < span class = "lineno" > 942< / span >   < span class = "keywordflow" > if< / span > (new_lb > new_ub) {< / div >
< div class = "line" > < a name = "l00943" > < / a > < span class = "lineno" > 943< / span >   < span class = "keywordflow" > if< / span > (lower_bound_sources_[new_representative] == new_representative) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00944" > < / a > < span class = "lineno" > 944< / span >   new_ub = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[new_representative];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00945" > < / a > < span class = "lineno" > 945< / span >   } < span class = "keywordflow" > else< / span > {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00946" > < / a > < span class = "lineno" > 946< / span >   new_lb = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[new_representative];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00947" > < / a > < span class = "lineno" > 947< / span >   }< / div >
< div class = "line" > < a name = "l00948" > < / a > < span class = "lineno" > 948< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00949" > < / a > < span class = "lineno" > 949< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2e33d930193e16f06f3c4d0309ff62c2" > UnmarkRow< / a > (new_representative);< / div >
< div class = "line" > < a name = "l00950" > < / a > < span class = "lineno" > 950< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a62b98dec38b6506442f9fc63f1a9b88f" > SetConstraintBounds< / a > (new_representative, new_lb, new_ub);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00951" > < / a > < span class = "lineno" > 951< / span >   }< / div >
< div class = "line" > < a name = "l00952" > < / a > < span class = "lineno" > 952< / span >   }< / div >
< div class = "line" > < a name = "l00953" > < / a > < span class = "lineno" > 953< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00954" > < / a > < span class = "lineno" > 954< / span >   lp_is_maximization_problem_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#accdd045ec09206640c2338524da77d23" > IsMaximizationProblem< / a > ();< / div >
< div class = "line" > < a name = "l00955" > < / a > < span class = "lineno" > 955< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac220cc5563c65b821d9d043010bb2121" > DeleteRows< / a > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a4dda252e2b65e3aa074c002daf6f86b8" > GetMarkedRows< / a > ());< / div >
< div class = "line" > < a name = "l00956" > < / a > < span class = "lineno" > 956< / span >   < span class = "keywordflow" > return< / span > !row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00957" > < / a > < span class = "lineno" > 957< / span >   }< / div >
< div class = "line" > < a name = "l00958" > < / a > < span class = "lineno" > 958< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00959" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_proportional_row_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 959< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_proportional_row_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > ProportionalRowPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l00960" > < / a > < span class = "lineno" > 960< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00961" > < / a > < span class = "lineno" > 961< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00962" > < / a > < span class = "lineno" > 962< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00963" > < / a > < span class = "lineno" > 963< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a43e3b399f53b38b75171071c9d730c5b" > RestoreDeletedRows< / a > (solution);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00964" > < / a > < span class = "lineno" > 964< / span >   < / div >
< div class = "line" > < a name = "l00965" > < / a > < span class = "lineno" > 965< / span >   < span class = "comment" > // Make sure that all non-zero dual values on the proportional rows are< / span > < / div >
< div class = "line" > < a name = "l00966" > < / a > < span class = "lineno" > 966< / span >   < span class = "comment" > // assigned to the correct row with the correct sign and that the statuses< / span > < / div >
< div class = "line" > < a name = "l00967" > < / a > < span class = "lineno" > 967< / span >   < span class = "comment" > // are correct.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00968" > < / a > < span class = "lineno" > 968< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00969" > < / a > < span class = "lineno" > 969< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l00970" > < / a > < span class = "lineno" > 970< / span >   < span class = "keyword" > const< / span > RowIndex lower_source = lower_bound_sources_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l00971" > < / a > < span class = "lineno" > 971< / span >   < span class = "keyword" > const< / span > RowIndex upper_source = upper_bound_sources_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l00972" > < / a > < span class = "lineno" > 972< / span >   < span class = "keywordflow" > if< / span > (lower_source == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > & & upper_source == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00973" > < / a > < span class = "lineno" > 973< / span >   DCHECK_NE(lower_source, upper_source);< / div >
< div class = "line" > < a name = "l00974" > < / a > < span class = "lineno" > 974< / span >   DCHECK(lower_source == < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > || upper_source == < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l00975" > < / a > < span class = "lineno" > 975< / span >   < / div >
< div class = "line" > < a name = "l00976" > < / a > < span class = "lineno" > 976< / span >   < span class = "comment" > // If the representative is ConstraintStatus::BASIC, then all rows in this< / span > < / div >
< div class = "line" > < a name = "l00977" > < / a > < span class = "lineno" > 977< / span >   < span class = "comment" > // class will be ConstraintStatus::BASIC and there is nothing to do.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00978" > < / a > < span class = "lineno" > 978< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9" > ConstraintStatus< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l00979" > < / a > < span class = "lineno" > 979< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae4ac03f6c9f00665644e868dd1fb9f1e" > ConstraintStatus::BASIC< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00980" > < / a > < span class = "lineno" > 980< / span >   < / div >
< div class = "line" > < a name = "l00981" > < / a > < span class = "lineno" > 981< / span >   < span class = "comment" > // If the row is FIXED it will behave as a row< / span > < / div >
< div class = "line" > < a name = "l00982" > < / a > < span class = "lineno" > 982< / span >   < span class = "comment" > // ConstraintStatus::AT_UPPER_BOUND or< / span > < / div >
< div class = "line" > < a name = "l00983" > < / a > < span class = "lineno" > 983< / span >   < span class = "comment" > // ConstraintStatus::AT_LOWER_BOUND depending on the corresponding dual< / span > < / div >
< div class = "line" > < a name = "l00984" > < / a > < span class = "lineno" > 984< / span >   < span class = "comment" > // variable sign.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00985" > < / a > < span class = "lineno" > 985< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > ConstraintStatus::FIXED_VALUE< / a > ) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00986" > < / a > < span class = "lineno" > 986< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > corrected_dual_value = lp_is_maximization_problem_< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00987" > < / a > < span class = "lineno" > 987< / span >   ? -solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]< / div >
< div class = "line" > < a name = "l00988" > < / a > < span class = "lineno" > 988< / span >   : solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00989" > < / a > < span class = "lineno" > 989< / span >   < span class = "keywordflow" > if< / span > (corrected_dual_value != 0.0) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00990" > < / a > < span class = "lineno" > 990< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > = corrected_dual_value > 0.0 ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > < / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l00991" > < / a > < span class = "lineno" > 991< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l00992" > < / a > < span class = "lineno" > 992< / span >   }< / div >
< div class = "line" > < a name = "l00993" > < / a > < span class = "lineno" > 993< / span >   }< / div >
< div class = "line" > < a name = "l00994" > < / a > < span class = "lineno" > 994< / span >   < / div >
< div class = "line" > < a name = "l00995" > < / a > < span class = "lineno" > 995< / span >   < span class = "comment" > // If one of the two conditions below are true, set the row status to< / span > < / div >
< div class = "line" > < a name = "l00996" > < / a > < span class = "lineno" > 996< / span >   < span class = "comment" > // ConstraintStatus::BASIC.< / span > < / div >
< div class = "line" > < a name = "l00997" > < / a > < span class = "lineno" > 997< / span >   < span class = "comment" > // Note that the source which is not row can' t be FIXED (see presolve).< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l00998" > < / a > < span class = "lineno" > 998< / span >   < span class = "keywordflow" > if< / span > (lower_source != < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > & & < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l00999" > < / a > < span class = "lineno" > 999< / span >   DCHECK_EQ(0.0, solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [lower_source]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01000" > < / a > < span class = "lineno" > 1000< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > factor = row_factors_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] / row_factors_[lower_source];< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01001" > < / a > < span class = "lineno" > 1001< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [lower_source] = factor * solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01002" > < / a > < span class = "lineno" > 1002< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = 0.0;< / div >
< div class = "line" > < a name = "l01003" > < / a > < span class = "lineno" > 1003< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae4ac03f6c9f00665644e868dd1fb9f1e" > ConstraintStatus::BASIC< / a > ;< / div >
< div class = "line" > < a name = "l01004" > < / a > < span class = "lineno" > 1004< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [lower_source] =< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01005" > < / a > < span class = "lineno" > 1005< / span >   factor > 0.0 ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > < / div >
< div class = "line" > < a name = "l01006" > < / a > < span class = "lineno" > 1006< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l01007" > < / a > < span class = "lineno" > 1007< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01008" > < / a > < span class = "lineno" > 1008< / span >   < span class = "keywordflow" > if< / span > (upper_source != < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > & & < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l01009" > < / a > < span class = "lineno" > 1009< / span >   DCHECK_EQ(0.0, solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [upper_source]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01010" > < / a > < span class = "lineno" > 1010< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > factor = row_factors_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] / row_factors_[upper_source];< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01011" > < / a > < span class = "lineno" > 1011< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [upper_source] = factor * solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01012" > < / a > < span class = "lineno" > 1012< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = 0.0;< / div >
< div class = "line" > < a name = "l01013" > < / a > < span class = "lineno" > 1013< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae4ac03f6c9f00665644e868dd1fb9f1e" > ConstraintStatus::BASIC< / a > ;< / div >
< div class = "line" > < a name = "l01014" > < / a > < span class = "lineno" > 1014< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [upper_source] =< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01015" > < / a > < span class = "lineno" > 1015< / span >   factor > 0.0 ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > < / div >
< div class = "line" > < a name = "l01016" > < / a > < span class = "lineno" > 1016< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l01017" > < / a > < span class = "lineno" > 1017< / span >   }< / div >
< div class = "line" > < a name = "l01018" > < / a > < span class = "lineno" > 1018< / span >   < / div >
< div class = "line" > < a name = "l01019" > < / a > < span class = "lineno" > 1019< / span >   < span class = "comment" > // If the row status is still ConstraintStatus::FIXED_VALUE, we need to< / span > < / div >
< div class = "line" > < a name = "l01020" > < / a > < span class = "lineno" > 1020< / span >   < span class = "comment" > // relax its status.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01021" > < / a > < span class = "lineno" > 1021< / span >   < span class = "keywordflow" > if< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > ConstraintStatus::FIXED_VALUE< / a > ) {< / div >
< div class = "line" > < a name = "l01022" > < / a > < span class = "lineno" > 1022< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] =< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01023" > < / a > < span class = "lineno" > 1023< / span >   lower_source != < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > < / div >
< div class = "line" > < a name = "l01024" > < / a > < span class = "lineno" > 1024< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l01025" > < / a > < span class = "lineno" > 1025< / span >   }< / div >
< div class = "line" > < a name = "l01026" > < / a > < span class = "lineno" > 1026< / span >   }< / div >
< div class = "line" > < a name = "l01027" > < / a > < span class = "lineno" > 1027< / span >   }< / div >
< div class = "line" > < a name = "l01028" > < / a > < span class = "lineno" > 1028< / span >   < / div >
< div class = "line" > < a name = "l01029" > < / a > < span class = "lineno" > 1029< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l01030" > < / a > < span class = "lineno" > 1030< / span >   < span class = "comment" > // FixedVariablePreprocessor< / span > < / div >
< div class = "line" > < a name = "l01031" > < / a > < span class = "lineno" > 1031< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l01032" > < / a > < span class = "lineno" > 1032< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01033" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_fixed_variable_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 1033< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_fixed_variable_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > FixedVariablePreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l01034" > < / a > < span class = "lineno" > 1034< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01035" > < / a > < span class = "lineno" > 1035< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01036" > < / a > < span class = "lineno" > 1036< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01037" > < / a > < span class = "lineno" > 1037< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01038" > < / a > < span class = "lineno" > 1038< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01039" > < / a > < span class = "lineno" > 1039< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01040" > < / a > < span class = "lineno" > 1040< / span >   < span class = "keywordflow" > if< / span > (lower_bound == upper_bound) {< / div >
< div class = "line" > < a name = "l01041" > < / a > < span class = "lineno" > 1041< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > fixed_value = lower_bound;< / div >
< div class = "line" > < a name = "l01042" > < / a > < span class = "lineno" > 1042< / span >   DCHECK(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (fixed_value));< / div >
< div class = "line" > < a name = "l01043" > < / a > < span class = "lineno" > 1043< / span >   < / div >
< div class = "line" > < a name = "l01044" > < / a > < span class = "lineno" > 1044< / span >   < span class = "comment" > // We need to change the constraint bounds.< / span > < / div >
< div class = "line" > < a name = "l01045" > < / a > < span class = "lineno" > 1045< / span >   SubtractColumnMultipleFromConstraintBound(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , fixed_value, lp);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01046" > < / a > < span class = "lineno" > 1046< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a43d852970601d1a979844a0aae79ed3d" > MarkColumnForDeletionWithState< / a > (< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01047" > < / a > < span class = "lineno" > 1047< / span >   < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , fixed_value, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > );< / div >
< div class = "line" > < a name = "l01048" > < / a > < span class = "lineno" > 1048< / span >   }< / div >
< div class = "line" > < a name = "l01049" > < / a > < span class = "lineno" > 1049< / span >   }< / div >
< div class = "line" > < a name = "l01050" > < / a > < span class = "lineno" > 1050< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01051" > < / a > < span class = "lineno" > 1051< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac59fd9cddfe284bf9dc7581ed631ce8d" > DeleteColumns< / a > (column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a6afccf8c0c7105ba45b8d7bd47830239" > GetMarkedColumns< / a > ());< / div >
< div class = "line" > < a name = "l01052" > < / a > < span class = "lineno" > 1052< / span >   < span class = "keywordflow" > return< / span > !column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01053" > < / a > < span class = "lineno" > 1053< / span >   }< / div >
< div class = "line" > < a name = "l01054" > < / a > < span class = "lineno" > 1054< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01055" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_fixed_variable_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 1055< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_fixed_variable_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > FixedVariablePreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l01056" > < / a > < span class = "lineno" > 1056< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01057" > < / a > < span class = "lineno" > 1057< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01058" > < / a > < span class = "lineno" > 1058< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01059" > < / a > < span class = "lineno" > 1059< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#ab73f53154d99b3cd13dae72fd418985d" > RestoreDeletedColumns< / a > (solution);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01060" > < / a > < span class = "lineno" > 1060< / span >   }< / div >
< div class = "line" > < a name = "l01061" > < / a > < span class = "lineno" > 1061< / span >   < / div >
< div class = "line" > < a name = "l01062" > < / a > < span class = "lineno" > 1062< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l01063" > < / a > < span class = "lineno" > 1063< / span >   < span class = "comment" > // ForcingAndImpliedFreeConstraintPreprocessor< / span > < / div >
< div class = "line" > < a name = "l01064" > < / a > < span class = "lineno" > 1064< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l01065" > < / a > < span class = "lineno" > 1065< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01066" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 1066< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > ForcingAndImpliedFreeConstraintPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l01067" > < / a > < span class = "lineno" > 1067< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01068" > < / a > < span class = "lineno" > 1068< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01069" > < / a > < span class = "lineno" > 1069< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01070" > < / a > < span class = "lineno" > 1070< / span >   < / div >
< div class = "line" > < a name = "l01071" > < / a > < span class = "lineno" > 1071< / span >   < span class = "comment" > // Compute the implied constraint bounds from the variable bounds.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01072" > < / a > < span class = "lineno" > 1072< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseColumn< / a > implied_lower_bounds(num_rows, 0);< / div >
< div class = "line" > < a name = "l01073" > < / a > < span class = "lineno" > 1073< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseColumn< / a > implied_upper_bounds(num_rows, 0);< / div >
< div class = "line" > < a name = "l01074" > < / a > < span class = "lineno" > 1074< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
< div class = "line" > < a name = "l01075" > < / a > < span class = "lineno" > 1075< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > StrictITIVector< RowIndex, int> < / a > row_degree(num_rows, 0);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01076" > < / a > < span class = "lineno" > 1076< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01077" > < / a > < span class = "lineno" > 1077< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01078" > < / a > < span class = "lineno" > 1078< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01079" > < / a > < span class = "lineno" > 1079< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01080" > < / a > < span class = "lineno" > 1080< / span >   < span class = "keyword" > const< / span > RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = e.row();< / div >
< div class = "line" > < a name = "l01081" > < / a > < span class = "lineno" > 1081< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > coeff = e.coefficient();< / div >
< div class = "line" > < a name = "l01082" > < / a > < span class = "lineno" > 1082< / span >   < span class = "keywordflow" > if< / span > (coeff > 0.0) {< / div >
< div class = "line" > < a name = "l01083" > < / a > < span class = "lineno" > 1083< / span >   implied_lower_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] += lower * coeff;< / div >
< div class = "line" > < a name = "l01084" > < / a > < span class = "lineno" > 1084< / span >   implied_upper_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] += upper * coeff;< / div >
< div class = "line" > < a name = "l01085" > < / a > < span class = "lineno" > 1085< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01086" > < / a > < span class = "lineno" > 1086< / span >   implied_lower_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] += upper * coeff;< / div >
< div class = "line" > < a name = "l01087" > < / a > < span class = "lineno" > 1087< / span >   implied_upper_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] += lower * coeff;< / div >
< div class = "line" > < a name = "l01088" > < / a > < span class = "lineno" > 1088< / span >   }< / div >
< div class = "line" > < a name = "l01089" > < / a > < span class = "lineno" > 1089< / span >   ++row_degree[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01090" > < / a > < span class = "lineno" > 1090< / span >   }< / div >
< div class = "line" > < a name = "l01091" > < / a > < span class = "lineno" > 1091< / span >   }< / div >
< div class = "line" > < a name = "l01092" > < / a > < span class = "lineno" > 1092< / span >   < / div >
< div class = "line" > < a name = "l01093" > < / a > < span class = "lineno" > 1093< / span >   < span class = "comment" > // Note that the ScalingPreprocessor is currently executed last, so here the< / span > < / div >
< div class = "line" > < a name = "l01094" > < / a > < span class = "lineno" > 1094< / span >   < span class = "comment" > // problem has not been scaled yet.< / span > < / div >
< div class = "line" > < a name = "l01095" > < / a > < span class = "lineno" > 1095< / span >   < span class = "keywordtype" > int< / span > num_implied_free_constraints = 0;< / div >
< div class = "line" > < a name = "l01096" > < / a > < span class = "lineno" > 1096< / span >   < span class = "keywordtype" > int< / span > num_forcing_constraints = 0;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01097" > < / a > < span class = "lineno" > 1097< / span >   is_forcing_up_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_rows, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l01098" > < / a > < span class = "lineno" > 1098< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseBooleanColumn< / a > is_forcing_down(num_rows, < span class = "keyword" > false< / span > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01099" > < / a > < span class = "lineno" > 1099< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l01100" > < / a > < span class = "lineno" > 1100< / span >   < span class = "keywordflow" > if< / span > (row_degree[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == 0) < span class = "keywordflow" > continue< / span > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01101" > < / a > < span class = "lineno" > 1101< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01102" > < / a > < span class = "lineno" > 1102< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01103" > < / a > < span class = "lineno" > 1103< / span >   < / div >
< div class = "line" > < a name = "l01104" > < / a > < span class = "lineno" > 1104< / span >   < span class = "comment" > // Check for infeasibility.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01105" > < / a > < span class = "lineno" > 1105< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (lower,< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01106" > < / a > < span class = "lineno" > 1106< / span >   implied_upper_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) ||< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01107" > < / a > < span class = "lineno" > 1107< / span >   !< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (implied_lower_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ],< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01108" > < / a > < span class = "lineno" > 1108< / span >   upper)) {< / div >
< div class = "line" > < a name = "l01109" > < / a > < span class = "lineno" > 1109< / span >   VLOG(1) < < < span class = "stringliteral" > " implied bound " < / span > < < implied_lower_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] < < < span class = "stringliteral" > " " < / span > < / div >
< div class = "line" > < a name = "l01110" > < / a > < span class = "lineno" > 1110< / span >   < < implied_upper_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l01111" > < / a > < span class = "lineno" > 1111< / span >   VLOG(1) < < < span class = "stringliteral" > " constraint bound " < / span > < < lower < < < span class = "stringliteral" > " " < / span > < < upper;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01112" > < / a > < span class = "lineno" > 1112< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::PRIMAL_INFEASIBLE;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01113" > < / a > < span class = "lineno" > 1113< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01114" > < / a > < span class = "lineno" > 1114< / span >   }< / div >
< div class = "line" > < a name = "l01115" > < / a > < span class = "lineno" > 1115< / span >   < / div >
< div class = "line" > < a name = "l01116" > < / a > < span class = "lineno" > 1116< / span >   < span class = "comment" > // Check if the constraint is forcing. That is, all the variables that< / span > < / div >
< div class = "line" > < a name = "l01117" > < / a > < span class = "lineno" > 1117< / span >   < span class = "comment" > // appear in it must be at one of their bounds.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01118" > < / a > < span class = "lineno" > 1118< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (implied_upper_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ],< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01119" > < / a > < span class = "lineno" > 1119< / span >   lower)) {< / div >
< div class = "line" > < a name = "l01120" > < / a > < span class = "lineno" > 1120< / span >   is_forcing_down[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01121" > < / a > < span class = "lineno" > 1121< / span >   ++num_forcing_constraints;< / div >
< div class = "line" > < a name = "l01122" > < / a > < span class = "lineno" > 1122< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01123" > < / a > < span class = "lineno" > 1123< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01124" > < / a > < span class = "lineno" > 1124< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (upper,< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01125" > < / a > < span class = "lineno" > 1125< / span >   implied_lower_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ])) {< / div >
< div class = "line" > < a name = "l01126" > < / a > < span class = "lineno" > 1126< / span >   is_forcing_up_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01127" > < / a > < span class = "lineno" > 1127< / span >   ++num_forcing_constraints;< / div >
< div class = "line" > < a name = "l01128" > < / a > < span class = "lineno" > 1128< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01129" > < / a > < span class = "lineno" > 1129< / span >   }< / div >
< div class = "line" > < a name = "l01130" > < / a > < span class = "lineno" > 1130< / span >   < / div >
< div class = "line" > < a name = "l01131" > < / a > < span class = "lineno" > 1131< / span >   < span class = "comment" > // We relax the constraint bounds only if the constraint is implied to be< / span > < / div >
< div class = "line" > < a name = "l01132" > < / a > < span class = "lineno" > 1132< / span >   < span class = "comment" > // free. Such constraints will later be deleted by the< / span > < / div >
< div class = "line" > < a name = "l01133" > < / a > < span class = "lineno" > 1133< / span >   < span class = "comment" > // FreeConstraintPreprocessor.< / span > < / div >
< div class = "line" > < a name = "l01134" > < / a > < span class = "lineno" > 1134< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01135" > < / a > < span class = "lineno" > 1135< / span >   < span class = "comment" > // Note that we could relax only one of the two bounds, but the impact this< / span > < / div >
< div class = "line" > < a name = "l01136" > < / a > < span class = "lineno" > 1136< / span >   < span class = "comment" > // would have on the revised simplex algorithm is unclear at this point.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01137" > < / a > < span class = "lineno" > 1137< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (lower,< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01138" > < / a > < span class = "lineno" > 1138< / span >   implied_lower_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) & & < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01139" > < / a > < span class = "lineno" > 1139< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (implied_upper_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ],< / div >
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< div class = "line" > < a name = "l01140" > < / a > < span class = "lineno" > 1140< / span >   upper)) {< / div >
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< div class = "line" > < a name = "l01141" > < / a > < span class = "lineno" > 1141< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a62b98dec38b6506442f9fc63f1a9b88f" > SetConstraintBounds< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > , -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01142" > < / a > < span class = "lineno" > 1142< / span >   ++num_implied_free_constraints;< / div >
< div class = "line" > < a name = "l01143" > < / a > < span class = "lineno" > 1143< / span >   }< / div >
< div class = "line" > < a name = "l01144" > < / a > < span class = "lineno" > 1144< / span >   }< / div >
< div class = "line" > < a name = "l01145" > < / a > < span class = "lineno" > 1145< / span >   < / div >
< div class = "line" > < a name = "l01146" > < / a > < span class = "lineno" > 1146< / span >   < span class = "keywordflow" > if< / span > (num_implied_free_constraints > 0) {< / div >
< div class = "line" > < a name = "l01147" > < / a > < span class = "lineno" > 1147< / span >   VLOG(1) < < num_implied_free_constraints < < < span class = "stringliteral" > " implied free constraints." < / span > ;< / div >
< div class = "line" > < a name = "l01148" > < / a > < span class = "lineno" > 1148< / span >   }< / div >
< div class = "line" > < a name = "l01149" > < / a > < span class = "lineno" > 1149< / span >   < / div >
< div class = "line" > < a name = "l01150" > < / a > < span class = "lineno" > 1150< / span >   < span class = "keywordflow" > if< / span > (num_forcing_constraints > 0) {< / div >
< div class = "line" > < a name = "l01151" > < / a > < span class = "lineno" > 1151< / span >   VLOG(1) < < num_forcing_constraints < < < span class = "stringliteral" > " forcing constraints." < / span > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01152" > < / a > < span class = "lineno" > 1152< / span >   lp_is_maximization_problem_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#accdd045ec09206640c2338524da77d23" > IsMaximizationProblem< / a > ();< / div >
< div class = "line" > < a name = "l01153" > < / a > < span class = "lineno" > 1153< / span >   deleted_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#ae1b90982a83e1b025ebbc1c446980640" > PopulateFromZero< / a > (num_rows, num_cols);< / div >
< div class = "line" > < a name = "l01154" > < / a > < span class = "lineno" > 1154< / span >   costs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (num_cols, 0.0);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01155" > < / a > < span class = "lineno" > 1155< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01156" > < / a > < span class = "lineno" > 1156< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_column.html" > SparseColumn< / a > & column = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l01157" > < / a > < span class = "lineno" > 1157< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01158" > < / a > < span class = "lineno" > 1158< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01159" > < / a > < span class = "lineno" > 1159< / span >   < span class = "keywordtype" > bool< / span > is_forced = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01160" > < / a > < span class = "lineno" > 1160< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = 0.0;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01161" > < / a > < span class = "lineno" > 1161< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : column) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01162" > < / a > < span class = "lineno" > 1162< / span >   < span class = "keywordflow" > if< / span > (is_forcing_down[e.row()]) {< / div >
< div class = "line" > < a name = "l01163" > < / a > < span class = "lineno" > 1163< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > candidate = e.coefficient() < 0.0 ? lower : upper;< / div >
< div class = "line" > < a name = "l01164" > < / a > < span class = "lineno" > 1164< / span >   < span class = "keywordflow" > if< / span > (is_forced & & candidate != < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ) {< / div >
< div class = "line" > < a name = "l01165" > < / a > < span class = "lineno" > 1165< / span >   < span class = "comment" > // The bounds are really close, so we fix to the bound with< / span > < / div >
< div class = "line" > < a name = "l01166" > < / a > < span class = "lineno" > 1166< / span >   < span class = "comment" > // the lowest magnitude. As of 2019/11/19, this is " better" than< / span > < / div >
< div class = "line" > < a name = "l01167" > < / a > < span class = "lineno" > 1167< / span >   < span class = "comment" > // fixing to the mid-point, because at postsolve, we always put< / span > < / div >
< div class = "line" > < a name = "l01168" > < / a > < span class = "lineno" > 1168< / span >   < span class = "comment" > // non-basic variables to their exact bounds (so, with mid-point< / span > < / div >
< div class = "line" > < a name = "l01169" > < / a > < span class = "lineno" > 1169< / span >   < span class = "comment" > // there would be a difference of epsilon/2 between the inner< / span > < / div >
< div class = "line" > < a name = "l01170" > < / a > < span class = "lineno" > 1170< / span >   < span class = "comment" > // solution and the postsolved one, which might cause issues).< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01171" > < / a > < span class = "lineno" > 1171< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (upper, lower)) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01172" > < / a > < span class = "lineno" > 1172< / span >   < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = std::abs(lower) < std::abs(upper) ? lower : upper;< / div >
< div class = "line" > < a name = "l01173" > < / a > < span class = "lineno" > 1173< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01174" > < / a > < span class = "lineno" > 1174< / span >   }< / div >
< div class = "line" > < a name = "l01175" > < / a > < span class = "lineno" > 1175< / span >   VLOG(1) < < < span class = "stringliteral" > " A variable is forced in both directions! bounds: [" < / span > < / div >
< div class = "line" > < a name = "l01176" > < / a > < span class = "lineno" > 1176< / span >   < < std::fixed < < std::setprecision(10) < < lower < < < span class = "stringliteral" > " , " < / span > < / div >
< div class = "line" > < a name = "l01177" > < / a > < span class = "lineno" > 1177< / span >   < < upper < < < span class = "stringliteral" > " ]. coeff:" < / span > < < e.coefficient();< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01178" > < / a > < span class = "lineno" > 1178< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::PRIMAL_INFEASIBLE;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01179" > < / a > < span class = "lineno" > 1179< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01180" > < / a > < span class = "lineno" > 1180< / span >   }< / div >
< div class = "line" > < a name = "l01181" > < / a > < span class = "lineno" > 1181< / span >   < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = candidate;< / div >
< div class = "line" > < a name = "l01182" > < / a > < span class = "lineno" > 1182< / span >   is_forced = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01183" > < / a > < span class = "lineno" > 1183< / span >   }< / div >
< div class = "line" > < a name = "l01184" > < / a > < span class = "lineno" > 1184< / span >   < span class = "keywordflow" > if< / span > (is_forcing_up_[e.row()]) {< / div >
< div class = "line" > < a name = "l01185" > < / a > < span class = "lineno" > 1185< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > candidate = e.coefficient() < 0.0 ? upper : lower;< / div >
< div class = "line" > < a name = "l01186" > < / a > < span class = "lineno" > 1186< / span >   < span class = "keywordflow" > if< / span > (is_forced & & candidate != < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ) {< / div >
< div class = "line" > < a name = "l01187" > < / a > < span class = "lineno" > 1187< / span >   < span class = "comment" > // The bounds are really close, so we fix to the bound with< / span > < / div >
< div class = "line" > < a name = "l01188" > < / a > < span class = "lineno" > 1188< / span >   < span class = "comment" > // the lowest magnitude.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01189" > < / a > < span class = "lineno" > 1189< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (upper, lower)) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01190" > < / a > < span class = "lineno" > 1190< / span >   < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = std::abs(lower) < std::abs(upper) ? lower : upper;< / div >
< div class = "line" > < a name = "l01191" > < / a > < span class = "lineno" > 1191< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01192" > < / a > < span class = "lineno" > 1192< / span >   }< / div >
< div class = "line" > < a name = "l01193" > < / a > < span class = "lineno" > 1193< / span >   VLOG(1) < < < span class = "stringliteral" > " A variable is forced in both directions! bounds: [" < / span > < / div >
< div class = "line" > < a name = "l01194" > < / a > < span class = "lineno" > 1194< / span >   < < std::fixed < < std::setprecision(10) < < lower < < < span class = "stringliteral" > " , " < / span > < / div >
< div class = "line" > < a name = "l01195" > < / a > < span class = "lineno" > 1195< / span >   < < upper < < < span class = "stringliteral" > " ]. coeff:" < / span > < < e.coefficient();< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01196" > < / a > < span class = "lineno" > 1196< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::PRIMAL_INFEASIBLE;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01197" > < / a > < span class = "lineno" > 1197< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01198" > < / a > < span class = "lineno" > 1198< / span >   }< / div >
< div class = "line" > < a name = "l01199" > < / a > < span class = "lineno" > 1199< / span >   < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = candidate;< / div >
< div class = "line" > < a name = "l01200" > < / a > < span class = "lineno" > 1200< / span >   is_forced = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01201" > < / a > < span class = "lineno" > 1201< / span >   }< / div >
< div class = "line" > < a name = "l01202" > < / a > < span class = "lineno" > 1202< / span >   }< / div >
< div class = "line" > < a name = "l01203" > < / a > < span class = "lineno" > 1203< / span >   < span class = "keywordflow" > if< / span > (is_forced) {< / div >
< div class = "line" > < a name = "l01204" > < / a > < span class = "lineno" > 1204< / span >   < span class = "comment" > // Fix the variable, update the constraint bounds and save this column< / span > < / div >
< div class = "line" > < a name = "l01205" > < / a > < span class = "lineno" > 1205< / span >   < span class = "comment" > // and its cost for the postsolve.< / span > < / div >
< div class = "line" > < a name = "l01206" > < / a > < span class = "lineno" > 1206< / span >   SubtractColumnMultipleFromConstraintBound(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > , lp);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01207" > < / a > < span class = "lineno" > 1207< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a43d852970601d1a979844a0aae79ed3d" > MarkColumnForDeletionWithState< / a > (< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01208" > < / a > < span class = "lineno" > 1208< / span >   < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ,< / div >
< div class = "line" > < a name = "l01209" > < / a > < span class = "lineno" > 1209< / span >   ComputeVariableStatus(< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > , lower, upper));< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01210" > < / a > < span class = "lineno" > 1210< / span >   deleted_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a1e9f788d4507f2461b4f775755aaf82e" > mutable_column< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af3346e19f245a59be830e9558002d2d4" > PopulateFromSparseVector< / a > (column);< / div >
< div class = "line" > < a name = "l01211" > < / a > < span class = "lineno" > 1211< / span >   costs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01212" > < / a > < span class = "lineno" > 1212< / span >   }< / div >
< div class = "line" > < a name = "l01213" > < / a > < span class = "lineno" > 1213< / span >   }< / div >
< div class = "line" > < a name = "l01214" > < / a > < span class = "lineno" > 1214< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l01215" > < / a > < span class = "lineno" > 1215< / span >   < span class = "comment" > // In theory, an M exists such that for any magnitude > = M, we will be at< / span > < / div >
< div class = "line" > < a name = "l01216" > < / a > < span class = "lineno" > 1216< / span >   < span class = "comment" > // an optimal solution. However, because of numerical errors, if the value< / span > < / div >
< div class = "line" > < a name = "l01217" > < / a > < span class = "lineno" > 1217< / span >   < span class = "comment" > // is too large, it causes problem when verifying the solution. So we< / span > < / div >
< div class = "line" > < a name = "l01218" > < / a > < span class = "lineno" > 1218< / span >   < span class = "comment" > // select the smallest such M (at least a resonably small one) during< / span > < / div >
< div class = "line" > < a name = "l01219" > < / a > < span class = "lineno" > 1219< / span >   < span class = "comment" > // postsolve. It is the reason why we need to store the columns that were< / span > < / div >
< div class = "line" > < a name = "l01220" > < / a > < span class = "lineno" > 1220< / span >   < span class = "comment" > // fixed.< / span > < / div >
< div class = "line" > < a name = "l01221" > < / a > < span class = "lineno" > 1221< / span >   < span class = "keywordflow" > if< / span > (is_forcing_down[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] || is_forcing_up_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01222" > < / a > < span class = "lineno" > 1222< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2087c8376c03c247099a989f2990e6e8" > MarkRowForDeletion< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01223" > < / a > < span class = "lineno" > 1223< / span >   }< / div >
< div class = "line" > < a name = "l01224" > < / a > < span class = "lineno" > 1224< / span >   }< / div >
< div class = "line" > < a name = "l01225" > < / a > < span class = "lineno" > 1225< / span >   }< / div >
< div class = "line" > < a name = "l01226" > < / a > < span class = "lineno" > 1226< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01227" > < / a > < span class = "lineno" > 1227< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac59fd9cddfe284bf9dc7581ed631ce8d" > DeleteColumns< / a > (column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a6afccf8c0c7105ba45b8d7bd47830239" > GetMarkedColumns< / a > ());< / div >
< div class = "line" > < a name = "l01228" > < / a > < span class = "lineno" > 1228< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac220cc5563c65b821d9d043010bb2121" > DeleteRows< / a > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a4dda252e2b65e3aa074c002daf6f86b8" > GetMarkedRows< / a > ());< / div >
< div class = "line" > < a name = "l01229" > < / a > < span class = "lineno" > 1229< / span >   < span class = "keywordflow" > return< / span > !column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01230" > < / a > < span class = "lineno" > 1230< / span >   }< / div >
< div class = "line" > < a name = "l01231" > < / a > < span class = "lineno" > 1231< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01232" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 1232< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > ForcingAndImpliedFreeConstraintPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l01233" > < / a > < span class = "lineno" > 1233< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01234" > < / a > < span class = "lineno" > 1234< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01235" > < / a > < span class = "lineno" > 1235< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01236" > < / a > < span class = "lineno" > 1236< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#ab73f53154d99b3cd13dae72fd418985d" > RestoreDeletedColumns< / a > (solution);< / div >
< div class = "line" > < a name = "l01237" > < / a > < span class = "lineno" > 1237< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a43e3b399f53b38b75171071c9d730c5b" > RestoreDeletedRows< / a > (solution);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01238" > < / a > < span class = "lineno" > 1238< / span >   < / div >
< div class = "line" > < a name = "l01239" > < / a > < span class = "lineno" > 1239< / span >   < span class = "comment" > // Compute for each deleted columns the last deleted row in which it appears.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01240" > < / a > < span class = "lineno" > 1240< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = deleted_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a41741829541d089f1c4d34f190884813" > num_cols< / a > ();< / div >
< div class = "line" > < a name = "l01241" > < / a > < span class = "lineno" > 1241< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > ColToRowMapping< / a > last_deleted_row(num_cols, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01242" > < / a > < span class = "lineno" > 1242< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01243" > < / a > < span class = "lineno" > 1243< / span >   < span class = "keywordflow" > if< / span > (!column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a1fbdcd623d96ea5e73d664ce0c6bd002" > IsColumnMarked< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01244" > < / a > < span class = "lineno" > 1244< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : deleted_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01245" > < / a > < span class = "lineno" > 1245< / span >   < span class = "keyword" > const< / span > RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = e.row();< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01246" > < / a > < span class = "lineno" > 1246< / span >   < span class = "keywordflow" > if< / span > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8b572400ae17e537ba55eb01667dd5c7" > IsRowMarked< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01247" > < / a > < span class = "lineno" > 1247< / span >   last_deleted_row[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ;< / div >
< div class = "line" > < a name = "l01248" > < / a > < span class = "lineno" > 1248< / span >   }< / div >
< div class = "line" > < a name = "l01249" > < / a > < span class = "lineno" > 1249< / span >   }< / div >
< div class = "line" > < a name = "l01250" > < / a > < span class = "lineno" > 1250< / span >   }< / div >
< div class = "line" > < a name = "l01251" > < / a > < span class = "lineno" > 1251< / span >   < / div >
< div class = "line" > < a name = "l01252" > < / a > < span class = "lineno" > 1252< / span >   < span class = "comment" > // For each deleted row (in order), compute a bound on the dual values so< / span > < / div >
< div class = "line" > < a name = "l01253" > < / a > < span class = "lineno" > 1253< / span >   < span class = "comment" > // that all the deleted columns for which this row is the last deleted row are< / span > < / div >
< div class = "line" > < a name = "l01254" > < / a > < span class = "lineno" > 1254< / span >   < span class = "comment" > // dual-feasible. Note that for the other columns, it will always be possible< / span > < / div >
< div class = "line" > < a name = "l01255" > < / a > < span class = "lineno" > 1255< / span >   < span class = "comment" > // to make them dual-feasible with a later row.< / span > < / div >
< div class = "line" > < a name = "l01256" > < / a > < span class = "lineno" > 1256< / span >   < span class = "comment" > // There are two possible outcomes:< / span > < / div >
< div class = "line" > < a name = "l01257" > < / a > < span class = "lineno" > 1257< / span >   < span class = "comment" > // - The dual value stays 0.0, and nothing changes.< / span > < / div >
< div class = "line" > < a name = "l01258" > < / a > < span class = "lineno" > 1258< / span >   < span class = "comment" > // - The bounds enforce a non-zero dual value, and one column will have a< / span > < / div >
< div class = "line" > < a name = "l01259" > < / a > < span class = "lineno" > 1259< / span >   < span class = "comment" > // reduced cost of 0.0. This column becomes VariableStatus::BASIC, and the< / span > < / div >
< div class = "line" > < a name = "l01260" > < / a > < span class = "lineno" > 1260< / span >   < span class = "comment" > // constraint status is changed to ConstraintStatus::AT_LOWER_BOUND,< / span > < / div >
< div class = "line" > < a name = "l01261" > < / a > < span class = "lineno" > 1261< / span >   < span class = "comment" > // ConstraintStatus::AT_UPPER_BOUND or ConstraintStatus::FIXED_VALUE.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01262" > < / a > < span class = "lineno" > 1262< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > SparseMatrix< / a > transpose;< / div >
< div class = "line" > < a name = "l01263" > < / a > < span class = "lineno" > 1263< / span >   transpose.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a2fe6f7470512f5301031480737375c88" > PopulateFromTranspose< / a > (deleted_columns_);< / div >
< div class = "line" > < a name = "l01264" > < / a > < span class = "lineno" > 1264< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01265" > < / a > < span class = "lineno" > 1265< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01266" > < / a > < span class = "lineno" > 1266< / span >   < span class = "keywordflow" > if< / span > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8b572400ae17e537ba55eb01667dd5c7" > IsRowMarked< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01267" > < / a > < span class = "lineno" > 1267< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_dual_value = 0.0;< / div >
< div class = "line" > < a name = "l01268" > < / a > < span class = "lineno" > 1268< / span >   ColIndex new_basic_column = < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01269" > < / a > < span class = "lineno" > 1269< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : transpose.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ))) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01270" > < / a > < span class = "lineno" > 1270< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e.row());< / div >
< div class = "line" > < a name = "l01271" > < / a > < span class = "lineno" > 1271< / span >   < span class = "keywordflow" > if< / span > (last_deleted_row[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01272" > < / a > < span class = "lineno" > 1272< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > scalar_product =< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01273" > < / a > < span class = "lineno" > 1273< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a3d9874910f9632900fe8677463b1c0be" > ScalarProduct< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > , deleted_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ));< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01274" > < / a > < span class = "lineno" > 1274< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > reduced_cost = costs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] - scalar_product;< / div >
< div class = "line" > < a name = "l01275" > < / a > < span class = "lineno" > 1275< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8" > bound< / a > = reduced_cost / e.coefficient();< / div >
< div class = "line" > < a name = "l01276" > < / a > < span class = "lineno" > 1276< / span >   < span class = "keywordflow" > if< / span > (is_forcing_up_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == !lp_is_maximization_problem_) {< / div >
< div class = "line" > < a name = "l01277" > < / a > < span class = "lineno" > 1277< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8" > bound< / a > < new_dual_value) {< / div >
< div class = "line" > < a name = "l01278" > < / a > < span class = "lineno" > 1278< / span >   new_dual_value = < a class = "code" href = "routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8" > bound< / a > ;< / div >
< div class = "line" > < a name = "l01279" > < / a > < span class = "lineno" > 1279< / span >   new_basic_column = < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ;< / div >
< div class = "line" > < a name = "l01280" > < / a > < span class = "lineno" > 1280< / span >   }< / div >
< div class = "line" > < a name = "l01281" > < / a > < span class = "lineno" > 1281< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01282" > < / a > < span class = "lineno" > 1282< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8" > bound< / a > > new_dual_value) {< / div >
< div class = "line" > < a name = "l01283" > < / a > < span class = "lineno" > 1283< / span >   new_dual_value = < a class = "code" href = "routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8" > bound< / a > ;< / div >
< div class = "line" > < a name = "l01284" > < / a > < span class = "lineno" > 1284< / span >   new_basic_column = < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ;< / div >
< div class = "line" > < a name = "l01285" > < / a > < span class = "lineno" > 1285< / span >   }< / div >
< div class = "line" > < a name = "l01286" > < / a > < span class = "lineno" > 1286< / span >   }< / div >
< div class = "line" > < a name = "l01287" > < / a > < span class = "lineno" > 1287< / span >   }< / div >
< div class = "line" > < a name = "l01288" > < / a > < span class = "lineno" > 1288< / span >   < span class = "keywordflow" > if< / span > (new_basic_column != < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01289" > < / a > < span class = "lineno" > 1289< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = new_dual_value;< / div >
< div class = "line" > < a name = "l01290" > < / a > < span class = "lineno" > 1290< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [new_basic_column] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
< div class = "line" > < a name = "l01291" > < / a > < span class = "lineno" > 1291< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] =< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01292" > < / a > < span class = "lineno" > 1292< / span >   is_forcing_up_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > < / div >
< div class = "line" > < a name = "l01293" > < / a > < span class = "lineno" > 1293< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l01294" > < / a > < span class = "lineno" > 1294< / span >   }< / div >
< div class = "line" > < a name = "l01295" > < / a > < span class = "lineno" > 1295< / span >   }< / div >
< div class = "line" > < a name = "l01296" > < / a > < span class = "lineno" > 1296< / span >   }< / div >
< div class = "line" > < a name = "l01297" > < / a > < span class = "lineno" > 1297< / span >   }< / div >
< div class = "line" > < a name = "l01298" > < / a > < span class = "lineno" > 1298< / span >   < / div >
< div class = "line" > < a name = "l01299" > < / a > < span class = "lineno" > 1299< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l01300" > < / a > < span class = "lineno" > 1300< / span >   < span class = "comment" > // ImpliedFreePreprocessor< / span > < / div >
< div class = "line" > < a name = "l01301" > < / a > < span class = "lineno" > 1301< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l01302" > < / a > < span class = "lineno" > 1302< / span >   < / div >
< div class = "line" > < a name = "l01303" > < / a > < span class = "lineno" > 1303< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l01304" > < / a > < span class = "lineno" > 1304< / span >   < span class = "keyword" > struct < / span > ColWithDegree {< / div >
< div class = "line" > < a name = "l01305" > < / a > < span class = "lineno" > 1305< / span >   ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ;< / div >
< div class = "line" > < a name = "l01306" > < / a > < span class = "lineno" > < a class = "line" href = "preprocessor_8cc.html#a2babe18010525bbf13c2fa5a959971e4" > 1306< / a > < / span >   EntryIndex < a class = "code" href = "preprocessor_8cc.html#a2babe18010525bbf13c2fa5a959971e4" > num_entries< / a > ;< / div >
< div class = "line" > < a name = "l01307" > < / a > < span class = "lineno" > 1307< / span >   ColWithDegree(ColIndex c, EntryIndex n) : < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (c), < a class = "code" href = "preprocessor_8cc.html#a2babe18010525bbf13c2fa5a959971e4" > num_entries< / a > (n) {}< / div >
< div class = "line" > < a name = "l01308" > < / a > < span class = "lineno" > 1308< / span >   < span class = "keywordtype" > bool< / span > operator< (< span class = "keyword" > const< / span > ColWithDegree& other)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01309" > < / a > < span class = "lineno" > 1309< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "preprocessor_8cc.html#a2babe18010525bbf13c2fa5a959971e4" > num_entries< / a > == other.num_entries) {< / div >
< div class = "line" > < a name = "l01310" > < / a > < span class = "lineno" > 1310< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < other.col;< / div >
< div class = "line" > < a name = "l01311" > < / a > < span class = "lineno" > 1311< / span >   }< / div >
< div class = "line" > < a name = "l01312" > < / a > < span class = "lineno" > 1312< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "preprocessor_8cc.html#a2babe18010525bbf13c2fa5a959971e4" > num_entries< / a > < other.num_entries;< / div >
< div class = "line" > < a name = "l01313" > < / a > < span class = "lineno" > 1313< / span >   }< / div >
< div class = "line" > < a name = "l01314" > < / a > < span class = "lineno" > 1314< / span >   };< / div >
< div class = "line" > < a name = "l01315" > < / a > < span class = "lineno" > 1315< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l01316" > < / a > < span class = "lineno" > 1316< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01317" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_implied_free_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 1317< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_implied_free_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > ImpliedFreePreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l01318" > < / a > < span class = "lineno" > 1318< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01319" > < / a > < span class = "lineno" > 1319< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01320" > < / a > < span class = "lineno" > 1320< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ();< / div >
< div class = "line" > < a name = "l01321" > < / a > < span class = "lineno" > 1321< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01322" > < / a > < span class = "lineno" > 1322< / span >   < / div >
< div class = "line" > < a name = "l01323" > < / a > < span class = "lineno" > 1323< / span >   < span class = "comment" > // For each constraint with n entries and each of its variable, we want the< / span > < / div >
< div class = "line" > < a name = "l01324" > < / a > < span class = "lineno" > 1324< / span >   < span class = "comment" > // bounds implied by the (n - 1) other variables and the constraint. We< / span > < / div >
< div class = "line" > < a name = "l01325" > < / a > < span class = "lineno" > 1325< / span >   < span class = "comment" > // use two handy utility classes that allow us to do that efficiently while< / span > < / div >
< div class = "line" > < a name = "l01326" > < / a > < span class = "lineno" > 1326< / span >   < span class = "comment" > // dealing properly with infinite bounds.< / span > < / div >
< div class = "line" > < a name = "l01327" > < / a > < span class = "lineno" > 1327< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > size = num_rows.value();< / div >
< div class = "line" > < a name = "l01328" > < / a > < span class = "lineno" > 1328< / span >   < span class = "comment" > // TODO(user) : Replace SumWithNegativeInfiniteAndOneMissing and< / span > < / div >
< div class = "line" > < a name = "l01329" > < / a > < span class = "lineno" > 1329< / span >   < span class = "comment" > // SumWithPositiveInfiniteAndOneMissing with IntervalSumWithOneMissing.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01330" > < / a > < span class = "lineno" > 1330< / span >   < a class = "code" href = "classgtl_1_1_i_t_i_vector.html" > gtl::ITIVector< RowIndex, SumWithNegativeInfiniteAndOneMissing> < / a > lb_sums(size);< / div >
< div class = "line" > < a name = "l01331" > < / a > < span class = "lineno" > 1331< / span >   < a class = "code" href = "classgtl_1_1_i_t_i_vector.html" > gtl::ITIVector< RowIndex, SumWithPositiveInfiniteAndOneMissing> < / a > ub_sums(size);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01332" > < / a > < span class = "lineno" > 1332< / span >   < / div >
< div class = "line" > < a name = "l01333" > < / a > < span class = "lineno" > 1333< / span >   < span class = "comment" > // Initialize the sums by adding all the bounds of the variables.< / span > < / div >
< div class = "line" > < a name = "l01334" > < / a > < span class = "lineno" > 1334< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01335" > < / a > < span class = "lineno" > 1335< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01336" > < / a > < span class = "lineno" > 1336< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01337" > < / a > < span class = "lineno" > 1337< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01338" > < / a > < span class = "lineno" > 1338< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > entry_lb = e.coefficient() * lower_bound;< / div >
< div class = "line" > < a name = "l01339" > < / a > < span class = "lineno" > 1339< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > entry_ub = e.coefficient() * upper_bound;< / div >
< div class = "line" > < a name = "l01340" > < / a > < span class = "lineno" > 1340< / span >   < span class = "keywordflow" > if< / span > (e.coefficient() < 0.0) std::swap(entry_lb, entry_ub);< / div >
< div class = "line" > < a name = "l01341" > < / a > < span class = "lineno" > 1341< / span >   lb_sums[e.row()].Add(entry_lb);< / div >
< div class = "line" > < a name = "l01342" > < / a > < span class = "lineno" > 1342< / span >   ub_sums[e.row()].Add(entry_ub);< / div >
< div class = "line" > < a name = "l01343" > < / a > < span class = "lineno" > 1343< / span >   }< / div >
< div class = "line" > < a name = "l01344" > < / a > < span class = "lineno" > 1344< / span >   }< / div >
< div class = "line" > < a name = "l01345" > < / a > < span class = "lineno" > 1345< / span >   < / div >
< div class = "line" > < a name = "l01346" > < / a > < span class = "lineno" > 1346< / span >   < span class = "comment" > // The inequality< / span > < / div >
< div class = "line" > < a name = "l01347" > < / a > < span class = "lineno" > 1347< / span >   < span class = "comment" > // constraint_lb < = sum(entries) < = constraint_ub< / span > < / div >
< div class = "line" > < a name = "l01348" > < / a > < span class = "lineno" > 1348< / span >   < span class = "comment" > // can be rewritten as:< / span > < / div >
< div class = "line" > < a name = "l01349" > < / a > < span class = "lineno" > 1349< / span >   < span class = "comment" > // sum(entries) + (-activity) = 0,< / span > < / div >
< div class = "line" > < a name = "l01350" > < / a > < span class = "lineno" > 1350< / span >   < span class = "comment" > // where (-activity) has bounds [-constraint_ub, -constraint_lb].< / span > < / div >
< div class = "line" > < a name = "l01351" > < / a > < span class = "lineno" > 1351< / span >   < span class = "comment" > // We use this latter convention to simplify our code.< / span > < / div >
< div class = "line" > < a name = "l01352" > < / a > < span class = "lineno" > 1352< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01353" > < / a > < span class = "lineno" > 1353< / span >   lb_sums[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ].Add(-lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]);< / div >
< div class = "line" > < a name = "l01354" > < / a > < span class = "lineno" > 1354< / span >   ub_sums[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ].Add(-lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01355" > < / a > < span class = "lineno" > 1355< / span >   }< / div >
< div class = "line" > < a name = "l01356" > < / a > < span class = "lineno" > 1356< / span >   < / div >
< div class = "line" > < a name = "l01357" > < / a > < span class = "lineno" > 1357< / span >   < span class = "comment" > // Once a variable is freed, none of the rows in which it appears can be< / span > < / div >
< div class = "line" > < a name = "l01358" > < / a > < span class = "lineno" > 1358< / span >   < span class = "comment" > // used to make another variable free.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01359" > < / a > < span class = "lineno" > 1359< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseBooleanColumn< / a > used_rows(num_rows, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l01360" > < / a > < span class = "lineno" > 1360< / span >   postsolve_status_of_free_variables_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > );< / div >
< div class = "line" > < a name = "l01361" > < / a > < span class = "lineno" > 1361< / span >   variable_offsets_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, 0.0);< / div >
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< div class = "line" > < a name = "l01362" > < / a > < span class = "lineno" > 1362< / span >   < / div >
< div class = "line" > < a name = "l01363" > < / a > < span class = "lineno" > 1363< / span >   < span class = "comment" > // It is better to process columns with a small degree first:< / span > < / div >
< div class = "line" > < a name = "l01364" > < / a > < span class = "lineno" > 1364< / span >   < span class = "comment" > // - Degree-two columns make it possible to remove a row from the problem.< / span > < / div >
< div class = "line" > < a name = "l01365" > < / a > < span class = "lineno" > 1365< / span >   < span class = "comment" > // - This way there is more chance to make more free columns.< / span > < / div >
< div class = "line" > < a name = "l01366" > < / a > < span class = "lineno" > 1366< / span >   < span class = "comment" > // - It is better to have low degree free columns since a free column will< / span > < / div >
< div class = "line" > < a name = "l01367" > < / a > < span class = "lineno" > 1367< / span >   < span class = "comment" > // always end up in the simplex basis (except if there is more than the< / span > < / div >
< div class = "line" > < a name = "l01368" > < / a > < span class = "lineno" > 1368< / span >   < span class = "comment" > // number of rows in the problem).< / span > < / div >
< div class = "line" > < a name = "l01369" > < / a > < span class = "lineno" > 1369< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01370" > < / a > < span class = "lineno" > 1370< / span >   < span class = "comment" > // TODO(user): Only process degree-two so in subsequent passes more degree-two< / span > < / div >
< div class = "line" > < a name = "l01371" > < / a > < span class = "lineno" > 1371< / span >   < span class = "comment" > // columns could be made free. And only when no other reduction can be< / span > < / div >
< div class = "line" > < a name = "l01372" > < / a > < span class = "lineno" > 1372< / span >   < span class = "comment" > // applied, process the higher degree column?< / span > < / div >
< div class = "line" > < a name = "l01373" > < / a > < span class = "lineno" > 1373< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01374" > < / a > < span class = "lineno" > 1374< / span >   < span class = "comment" > // TODO(user): Be smarter about the order that maximizes the number of free< / span > < / div >
< div class = "line" > < a name = "l01375" > < / a > < span class = "lineno" > 1375< / span >   < span class = "comment" > // column. For instance if we have 3 doubleton columns that use the rows (1,2)< / span > < / div >
< div class = "line" > < a name = "l01376" > < / a > < span class = "lineno" > 1376< / span >   < span class = "comment" > // (2,3) and (3,4) then it is better not to make (2,3) free so the two other< / span > < / div >
< div class = "line" > < a name = "l01377" > < / a > < span class = "lineno" > 1377< / span >   < span class = "comment" > // two can be made free.< / span > < / div >
< div class = "line" > < a name = "l01378" > < / a > < span class = "lineno" > 1378< / span >   std::vector< ColWithDegree> col_by_degree;< / div >
< div class = "line" > < a name = "l01379" > < / a > < span class = "lineno" > 1379< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l01380" > < / a > < span class = "lineno" > 1380< / span >   col_by_degree.push_back(< / div >
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< div class = "line" > < a name = "l01381" > < / a > < span class = "lineno" > 1381< / span >   ColWithDegree(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ).< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > ()));< / div >
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< div class = "line" > < a name = "l01382" > < / a > < span class = "lineno" > 1382< / span >   }< / div >
< div class = "line" > < a name = "l01383" > < / a > < span class = "lineno" > 1383< / span >   std::sort(col_by_degree.begin(), col_by_degree.end());< / div >
< div class = "line" > < a name = "l01384" > < / a > < span class = "lineno" > 1384< / span >   < / div >
< div class = "line" > < a name = "l01385" > < / a > < span class = "lineno" > 1385< / span >   < span class = "comment" > // Now loop over the columns in order and make all implied-free columns free.< / span > < / div >
< div class = "line" > < a name = "l01386" > < / a > < span class = "lineno" > 1386< / span >   < span class = "keywordtype" > int< / span > num_already_free_variables = 0;< / div >
< div class = "line" > < a name = "l01387" > < / a > < span class = "lineno" > 1387< / span >   < span class = "keywordtype" > int< / span > num_implied_free_variables = 0;< / div >
< div class = "line" > < a name = "l01388" > < / a > < span class = "lineno" > 1388< / span >   < span class = "keywordtype" > int< / span > num_fixed_variables = 0;< / div >
< div class = "line" > < a name = "l01389" > < / a > < span class = "lineno" > 1389< / span >   < span class = "keywordflow" > for< / span > (ColWithDegree col_with_degree : col_by_degree) {< / div >
< div class = "line" > < a name = "l01390" > < / a > < span class = "lineno" > 1390< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = col_with_degree.col;< / div >
< div class = "line" > < a name = "l01391" > < / a > < span class = "lineno" > 1391< / span >   < / div >
< div class = "line" > < a name = "l01392" > < / a > < span class = "lineno" > 1392< / span >   < span class = "comment" > // If the variable is alreay free or fixed, we do nothing.< / span > < / div >
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< div class = "line" > < a name = "l01393" > < / a > < span class = "lineno" > 1393< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01394" > < / a > < span class = "lineno" > 1394< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
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< div class = "line" > < a name = "l01395" > < / a > < span class = "lineno" > 1395< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (lower_bound) & & !< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (upper_bound)) {< / div >
< div class = "line" > < a name = "l01396" > < / a > < span class = "lineno" > 1396< / span >   ++num_already_free_variables;< / div >
< div class = "line" > < a name = "l01397" > < / a > < span class = "lineno" > 1397< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01398" > < / a > < span class = "lineno" > 1398< / span >   }< / div >
< div class = "line" > < a name = "l01399" > < / a > < span class = "lineno" > 1399< / span >   < span class = "keywordflow" > if< / span > (lower_bound == upper_bound) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01400" > < / a > < span class = "lineno" > 1400< / span >   < / div >
< div class = "line" > < a name = "l01401" > < / a > < span class = "lineno" > 1401< / span >   < span class = "comment" > // Detect if the variable is implied free.< / span > < / div >
< div class = "line" > < a name = "l01402" > < / a > < span class = "lineno" > 1402< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > overall_implied_lb = -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ;< / div >
< div class = "line" > < a name = "l01403" > < / a > < span class = "lineno" > 1403< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > overall_implied_ub = < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ;< / div >
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< div class = "line" > < a name = "l01404" > < / a > < span class = "lineno" > 1404< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
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< div class = "line" > < a name = "l01405" > < / a > < span class = "lineno" > 1405< / span >   < span class = "comment" > // If the row contains another implied free variable, then the bounds< / span > < / div >
< div class = "line" > < a name = "l01406" > < / a > < span class = "lineno" > 1406< / span >   < span class = "comment" > // implied by it will just be [-kInfinity, kInfinity] so we can skip it.< / span > < / div >
< div class = "line" > < a name = "l01407" > < / a > < span class = "lineno" > 1407< / span >   < span class = "keywordflow" > if< / span > (used_rows[e.row()]) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01408" > < / a > < span class = "lineno" > 1408< / span >   < / div >
< div class = "line" > < a name = "l01409" > < / a > < span class = "lineno" > 1409< / span >   < span class = "comment" > // This is the contribution of this column to the sum above.< / span > < / div >
< div class = "line" > < a name = "l01410" > < / a > < span class = "lineno" > 1410< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > coeff = e.coefficient();< / div >
< div class = "line" > < a name = "l01411" > < / a > < span class = "lineno" > 1411< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > entry_lb = coeff * lower_bound;< / div >
< div class = "line" > < a name = "l01412" > < / a > < span class = "lineno" > 1412< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > entry_ub = coeff * upper_bound;< / div >
< div class = "line" > < a name = "l01413" > < / a > < span class = "lineno" > 1413< / span >   < span class = "keywordflow" > if< / span > (coeff < 0.0) std::swap(entry_lb, entry_ub);< / div >
< div class = "line" > < a name = "l01414" > < / a > < span class = "lineno" > 1414< / span >   < / div >
< div class = "line" > < a name = "l01415" > < / a > < span class = "lineno" > 1415< / span >   < span class = "comment" > // If X is the variable with index col and Y the sum of all the other< / span > < / div >
< div class = "line" > < a name = "l01416" > < / a > < span class = "lineno" > 1416< / span >   < span class = "comment" > // variables and of (-activity), then coeff * X + Y = 0. Since Y' s bounds< / span > < / div >
< div class = "line" > < a name = "l01417" > < / a > < span class = "lineno" > 1417< / span >   < span class = "comment" > // are [lb_sum without X, ub_sum without X], it is easy to derive the< / span > < / div >
< div class = "line" > < a name = "l01418" > < / a > < span class = "lineno" > 1418< / span >   < span class = "comment" > // implied bounds on X.< / span > < / div >
< div class = "line" > < a name = "l01419" > < / a > < span class = "lineno" > 1419< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > implied_lb = -ub_sums[e.row()].SumWithout(entry_ub) / coeff;< / div >
< div class = "line" > < a name = "l01420" > < / a > < span class = "lineno" > 1420< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > implied_ub = -lb_sums[e.row()].SumWithout(entry_lb) / coeff;< / div >
< div class = "line" > < a name = "l01421" > < / a > < span class = "lineno" > 1421< / span >   < span class = "keywordflow" > if< / span > (coeff < 0.0) std::swap(implied_lb, implied_ub);< / div >
< div class = "line" > < a name = "l01422" > < / a > < span class = "lineno" > 1422< / span >   overall_implied_lb = < a class = "code" href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > std::max< / a > (overall_implied_lb, implied_lb);< / div >
< div class = "line" > < a name = "l01423" > < / a > < span class = "lineno" > 1423< / span >   overall_implied_ub = < a class = "code" href = "alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37" > std::min< / a > (overall_implied_ub, implied_ub);< / div >
< div class = "line" > < a name = "l01424" > < / a > < span class = "lineno" > 1424< / span >   }< / div >
< div class = "line" > < a name = "l01425" > < / a > < span class = "lineno" > 1425< / span >   < / div >
< div class = "line" > < a name = "l01426" > < / a > < span class = "lineno" > 1426< / span >   < span class = "comment" > // Detect infeasible cases.< / span > < / div >
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< div class = "line" > < a name = "l01427" > < / a > < span class = "lineno" > 1427< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (overall_implied_lb, upper_bound) ||< / div >
< div class = "line" > < a name = "l01428" > < / a > < span class = "lineno" > 1428< / span >   !< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (lower_bound, overall_implied_ub) ||< / div >
< div class = "line" > < a name = "l01429" > < / a > < span class = "lineno" > 1429< / span >   !< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (overall_implied_lb,< / div >
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< div class = "line" > < a name = "l01430" > < / a > < span class = "lineno" > 1430< / span >   overall_implied_ub)) {< / div >
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< div class = "line" > < a name = "l01431" > < / a > < span class = "lineno" > 1431< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::PRIMAL_INFEASIBLE;< / div >
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< div class = "line" > < a name = "l01432" > < / a > < span class = "lineno" > 1432< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01433" > < / a > < span class = "lineno" > 1433< / span >   }< / div >
< div class = "line" > < a name = "l01434" > < / a > < span class = "lineno" > 1434< / span >   < / div >
< div class = "line" > < a name = "l01435" > < / a > < span class = "lineno" > 1435< / span >   < span class = "comment" > // Detect fixed variable cases (there are two kinds).< / span > < / div >
< div class = "line" > < a name = "l01436" > < / a > < span class = "lineno" > 1436< / span >   < span class = "comment" > // Note that currently we don' t do anything here except counting them.< / span > < / div >
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< div class = "line" > < a name = "l01437" > < / a > < span class = "lineno" > 1437< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (upper_bound,< / div >
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< div class = "line" > < a name = "l01438" > < / a > < span class = "lineno" > 1438< / span >   overall_implied_lb) ||< / div >
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< div class = "line" > < a name = "l01439" > < / a > < span class = "lineno" > 1439< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (overall_implied_ub,< / div >
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< div class = "line" > < a name = "l01440" > < / a > < span class = "lineno" > 1440< / span >   lower_bound)) {< / div >
< div class = "line" > < a name = "l01441" > < / a > < span class = "lineno" > 1441< / span >   < span class = "comment" > // This case is already dealt with by the< / span > < / div >
< div class = "line" > < a name = "l01442" > < / a > < span class = "lineno" > 1442< / span >   < span class = "comment" > // ForcingAndImpliedFreeConstraintPreprocessor since it means that (at< / span > < / div >
< div class = "line" > < a name = "l01443" > < / a > < span class = "lineno" > 1443< / span >   < span class = "comment" > // least) one of the row is forcing.< / span > < / div >
< div class = "line" > < a name = "l01444" > < / a > < span class = "lineno" > 1444< / span >   ++num_fixed_variables;< / div >
< div class = "line" > < a name = "l01445" > < / a > < span class = "lineno" > 1445< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
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< div class = "line" > < a name = "l01446" > < / a > < span class = "lineno" > 1446< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (overall_implied_ub,< / div >
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< div class = "line" > < a name = "l01447" > < / a > < span class = "lineno" > 1447< / span >   overall_implied_lb)) {< / div >
< div class = "line" > < a name = "l01448" > < / a > < span class = "lineno" > 1448< / span >   < span class = "comment" > // TODO(user): As of July 2013, with our preprocessors this case is never< / span > < / div >
< div class = "line" > < a name = "l01449" > < / a > < span class = "lineno" > 1449< / span >   < span class = "comment" > // triggered on the Netlib. Note however that if it appears it can have a< / span > < / div >
< div class = "line" > < a name = "l01450" > < / a > < span class = "lineno" > 1450< / span >   < span class = "comment" > // big impact since by fixing the variable, the two involved constraints< / span > < / div >
< div class = "line" > < a name = "l01451" > < / a > < span class = "lineno" > 1451< / span >   < span class = "comment" > // are forcing and can be removed too (with all the variables they touch).< / span > < / div >
< div class = "line" > < a name = "l01452" > < / a > < span class = "lineno" > 1452< / span >   < span class = "comment" > // The postsolve step is quite involved though.< / span > < / div >
< div class = "line" > < a name = "l01453" > < / a > < span class = "lineno" > 1453< / span >   ++num_fixed_variables;< / div >
< div class = "line" > < a name = "l01454" > < / a > < span class = "lineno" > 1454< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01455" > < / a > < span class = "lineno" > 1455< / span >   }< / div >
< div class = "line" > < a name = "l01456" > < / a > < span class = "lineno" > 1456< / span >   < / div >
< div class = "line" > < a name = "l01457" > < / a > < span class = "lineno" > 1457< / span >   < span class = "comment" > // Is the variable implied free? Note that for an infinite lower_bound or< / span > < / div >
< div class = "line" > < a name = "l01458" > < / a > < span class = "lineno" > 1458< / span >   < span class = "comment" > // upper_bound the respective inequality is always true.< / span > < / div >
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< div class = "line" > < a name = "l01459" > < / a > < span class = "lineno" > 1459< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (lower_bound,< / div >
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< div class = "line" > < a name = "l01460" > < / a > < span class = "lineno" > 1460< / span >   overall_implied_lb) & & < / div >
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< div class = "line" > < a name = "l01461" > < / a > < span class = "lineno" > 1461< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (overall_implied_ub,< / div >
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< div class = "line" > < a name = "l01462" > < / a > < span class = "lineno" > 1462< / span >   upper_bound)) {< / div >
< div class = "line" > < a name = "l01463" > < / a > < span class = "lineno" > 1463< / span >   ++num_implied_free_variables;< / div >
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< div class = "line" > < a name = "l01464" > < / a > < span class = "lineno" > 1464< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093" > SetVariableBounds< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l01465" > < / a > < span class = "lineno" > 1465< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
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< div class = "line" > < a name = "l01466" > < / a > < span class = "lineno" > 1466< / span >   used_rows[e.row()] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01467" > < / a > < span class = "lineno" > 1467< / span >   }< / div >
< div class = "line" > < a name = "l01468" > < / a > < span class = "lineno" > 1468< / span >   < / div >
< div class = "line" > < a name = "l01469" > < / a > < span class = "lineno" > 1469< / span >   < span class = "comment" > // This is a tricky part. We' re freeing this variable, which means that< / span > < / div >
< div class = "line" > < a name = "l01470" > < / a > < span class = "lineno" > 1470< / span >   < span class = "comment" > // after solve, the modified variable will have status either< / span > < / div >
< div class = "line" > < a name = "l01471" > < / a > < span class = "lineno" > 1471< / span >   < span class = "comment" > // VariableStatus::FREE or VariableStatus::BASIC. In the former case< / span > < / div >
< div class = "line" > < a name = "l01472" > < / a > < span class = "lineno" > 1472< / span >   < span class = "comment" > // (VariableStatus::FREE, value = 0.0), we need to " fix" the< / span > < / div >
< div class = "line" > < a name = "l01473" > < / a > < span class = "lineno" > 1473< / span >   < span class = "comment" > // status (technically, our variable isn' t free!) to either< / span > < / div >
< div class = "line" > < a name = "l01474" > < / a > < span class = "lineno" > 1474< / span >   < span class = "comment" > // VariableStatus::AT_LOWER_BOUND or VariableStatus::AT_UPPER_BOUND< / span > < / div >
< div class = "line" > < a name = "l01475" > < / a > < span class = "lineno" > 1475< / span >   < span class = "comment" > // (note that we skipped fixed variables), and " fix" the value to that< / span > < / div >
< div class = "line" > < a name = "l01476" > < / a > < span class = "lineno" > 1476< / span >   < span class = "comment" > // bound' s value as well. We make the decision and the precomputation< / span > < / div >
< div class = "line" > < a name = "l01477" > < / a > < span class = "lineno" > 1477< / span >   < span class = "comment" > // here: we simply offset the variable by one of its bounds, and store< / span > < / div >
< div class = "line" > < a name = "l01478" > < / a > < span class = "lineno" > 1478< / span >   < span class = "comment" > // which bound that was. Note that if the modified variable turns out to< / span > < / div >
< div class = "line" > < a name = "l01479" > < / a > < span class = "lineno" > 1479< / span >   < span class = "comment" > // be VariableStatus::BASIC, we' ll simply un-offset its value too;< / span > < / div >
< div class = "line" > < a name = "l01480" > < / a > < span class = "lineno" > 1480< / span >   < span class = "comment" > // and let the status be VariableStatus::BASIC.< / span > < / div >
< div class = "line" > < a name = "l01481" > < / a > < span class = "lineno" > 1481< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01482" > < / a > < span class = "lineno" > 1482< / span >   < span class = "comment" > // TODO(user): This trick is already used in the DualizerPreprocessor,< / span > < / div >
< div class = "line" > < a name = "l01483" > < / a > < span class = "lineno" > 1483< / span >   < span class = "comment" > // maybe we should just have a preprocessor that shifts all the variables< / span > < / div >
< div class = "line" > < a name = "l01484" > < / a > < span class = "lineno" > 1484< / span >   < span class = "comment" > // bounds to have at least one of them at 0.0, will that improve precision< / span > < / div >
< div class = "line" > < a name = "l01485" > < / a > < span class = "lineno" > 1485< / span >   < span class = "comment" > // and speed of the simplex? One advantage is that we can compute the< / span > < / div >
< div class = "line" > < a name = "l01486" > < / a > < span class = "lineno" > 1486< / span >   < span class = "comment" > // new constraint bounds with better precision using AccurateSum.< / span > < / div >
< div class = "line" > < a name = "l01487" > < / a > < span class = "lineno" > 1487< / span >   DCHECK_NE(lower_bound, upper_bound);< / div >
< div class = "line" > < a name = "l01488" > < / a > < span class = "lineno" > 1488< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > offset =< / div >
< div class = "line" > < a name = "l01489" > < / a > < span class = "lineno" > 1489< / span >   MinInMagnitudeOrZeroIfInfinite(lower_bound, upper_bound);< / div >
< div class = "line" > < a name = "l01490" > < / a > < span class = "lineno" > 1490< / span >   < span class = "keywordflow" > if< / span > (offset != 0.0) {< / div >
< div class = "line" > < a name = "l01491" > < / a > < span class = "lineno" > 1491< / span >   variable_offsets_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = offset;< / div >
< div class = "line" > < a name = "l01492" > < / a > < span class = "lineno" > 1492< / span >   SubtractColumnMultipleFromConstraintBound(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , offset, lp);< / div >
< div class = "line" > < a name = "l01493" > < / a > < span class = "lineno" > 1493< / span >   }< / div >
< div class = "line" > < a name = "l01494" > < / a > < span class = "lineno" > 1494< / span >   postsolve_status_of_free_variables_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] =< / div >
< div class = "line" > < a name = "l01495" > < / a > < span class = "lineno" > 1495< / span >   ComputeVariableStatus(offset, lower_bound, upper_bound);< / div >
< div class = "line" > < a name = "l01496" > < / a > < span class = "lineno" > 1496< / span >   }< / div >
< div class = "line" > < a name = "l01497" > < / a > < span class = "lineno" > 1497< / span >   }< / div >
< div class = "line" > < a name = "l01498" > < / a > < span class = "lineno" > 1498< / span >   VLOG(1) < < num_already_free_variables < < < span class = "stringliteral" > " free variables in the problem." < / span > ;< / div >
< div class = "line" > < a name = "l01499" > < / a > < span class = "lineno" > 1499< / span >   VLOG(1) < < num_implied_free_variables < < < span class = "stringliteral" > " implied free columns." < / span > ;< / div >
< div class = "line" > < a name = "l01500" > < / a > < span class = "lineno" > 1500< / span >   VLOG(1) < < num_fixed_variables < < < span class = "stringliteral" > " variables can be fixed." < / span > ;< / div >
< div class = "line" > < a name = "l01501" > < / a > < span class = "lineno" > 1501< / span >   < span class = "keywordflow" > return< / span > num_implied_free_variables > 0;< / div >
< div class = "line" > < a name = "l01502" > < / a > < span class = "lineno" > 1502< / span >   }< / div >
< div class = "line" > < a name = "l01503" > < / a > < span class = "lineno" > 1503< / span >   < / div >
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< div class = "line" > < a name = "l01504" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_implied_free_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 1504< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_implied_free_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > ImpliedFreePreprocessor::RecoverSolution< / a > (< a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01505" > < / a > < span class = "lineno" > 1505< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01506" > < / a > < span class = "lineno" > 1506< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
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< div class = "line" > < a name = "l01507" > < / a > < span class = "lineno" > 1507< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
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< div class = "line" > < a name = "l01508" > < / a > < span class = "lineno" > 1508< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l01509" > < / a > < span class = "lineno" > 1509< / span >   < span class = "comment" > // Skip variables that the preprocessor didn' t change.< / span > < / div >
< div class = "line" > < a name = "l01510" > < / a > < span class = "lineno" > 1510< / span >   < span class = "keywordflow" > if< / span > (postsolve_status_of_free_variables_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > ) {< / div >
< div class = "line" > < a name = "l01511" > < / a > < span class = "lineno" > 1511< / span >   DCHECK_EQ(0.0, variable_offsets_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
< div class = "line" > < a name = "l01512" > < / a > < span class = "lineno" > 1512< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01513" > < / a > < span class = "lineno" > 1513< / span >   }< / div >
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< div class = "line" > < a name = "l01514" > < / a > < span class = "lineno" > 1514< / span >   < span class = "keywordflow" > if< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > ) {< / div >
< div class = "line" > < a name = "l01515" > < / a > < span class = "lineno" > 1515< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] =< / div >
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< div class = "line" > < a name = "l01516" > < / a > < span class = "lineno" > 1516< / span >   postsolve_status_of_free_variables_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01517" > < / a > < span class = "lineno" > 1517< / span >   } < span class = "keywordflow" > else< / span > {< / div >
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< div class = "line" > < a name = "l01518" > < / a > < span class = "lineno" > 1518< / span >   DCHECK_EQ(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > , solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01519" > < / a > < span class = "lineno" > 1519< / span >   }< / div >
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< div class = "line" > < a name = "l01520" > < / a > < span class = "lineno" > 1520< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] += variable_offsets_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
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< div class = "line" > < a name = "l01521" > < / a > < span class = "lineno" > 1521< / span >   }< / div >
< div class = "line" > < a name = "l01522" > < / a > < span class = "lineno" > 1522< / span >   }< / div >
< div class = "line" > < a name = "l01523" > < / a > < span class = "lineno" > 1523< / span >   < / div >
< div class = "line" > < a name = "l01524" > < / a > < span class = "lineno" > 1524< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l01525" > < / a > < span class = "lineno" > 1525< / span >   < span class = "comment" > // DoubletonFreeColumnPreprocessor< / span > < / div >
< div class = "line" > < a name = "l01526" > < / a > < span class = "lineno" > 1526< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l01527" > < / a > < span class = "lineno" > 1527< / span >   < / div >
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< div class = "line" > < a name = "l01528" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_doubleton_free_column_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 1528< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_doubleton_free_column_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > DoubletonFreeColumnPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l01529" > < / a > < span class = "lineno" > 1529< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
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< div class = "line" > < a name = "l01530" > < / a > < span class = "lineno" > 1530< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l01531" > < / a > < span class = "lineno" > 1531< / span >   < span class = "comment" > // We will modify the matrix transpose and then push the change to the linear< / span > < / div >
< div class = "line" > < a name = "l01532" > < / a > < span class = "lineno" > 1532< / span >   < span class = "comment" > // program by calling lp-> UseTransposeMatrixAsReference(). Note< / span > < / div >
< div class = "line" > < a name = "l01533" > < / a > < span class = "lineno" > 1533< / span >   < span class = "comment" > // that original_matrix will not change during this preprocessor run.< / span > < / div >
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< div class = "line" > < a name = "l01534" > < / a > < span class = "lineno" > 1534< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > SparseMatrix< / a > & original_matrix = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a33b78d7012477c55f395aaf92ca6e9f4" > GetSparseMatrix< / a > ();< / div >
< div class = "line" > < a name = "l01535" > < / a > < span class = "lineno" > 1535< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > SparseMatrix< / a > * transpose = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a007496c4e4962b2fa4d2e996fd7b4cf6" > GetMutableTransposeSparseMatrix< / a > ();< / div >
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< div class = "line" > < a name = "l01536" > < / a > < span class = "lineno" > 1536< / span >   < / div >
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< div class = "line" > < a name = "l01537" > < / a > < span class = "lineno" > 1537< / span >   < span class = "keyword" > const< / span > ColIndex num_cols(lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ());< / div >
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< div class = "line" > < a name = "l01538" > < / a > < span class = "lineno" > 1538< / span >   < span class = "keywordflow" > for< / span > (ColIndex doubleton_col(0); doubleton_col < num_cols; ++doubleton_col) {< / div >
< div class = "line" > < a name = "l01539" > < / a > < span class = "lineno" > 1539< / span >   < span class = "comment" > // Only consider doubleton free columns.< / span > < / div >
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< div class = "line" > < a name = "l01540" > < / a > < span class = "lineno" > 1540< / span >   < span class = "keywordflow" > if< / span > (original_matrix.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (doubleton_col).< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > () != 2) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01541" > < / a > < span class = "lineno" > 1541< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[doubleton_col] != -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01542" > < / a > < span class = "lineno" > 1542< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[doubleton_col] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
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< div class = "line" > < a name = "l01543" > < / a > < span class = "lineno" > 1543< / span >   < / div >
< div class = "line" > < a name = "l01544" > < / a > < span class = "lineno" > 1544< / span >   < span class = "comment" > // Collect the two column items. Note that we skip a column involving a< / span > < / div >
< div class = "line" > < a name = "l01545" > < / a > < span class = "lineno" > 1545< / span >   < span class = "comment" > // deleted row since it is no longer a doubleton then.< / span > < / div >
< div class = "line" > < a name = "l01546" > < / a > < span class = "lineno" > 1546< / span >   RestoreInfo r;< / div >
< div class = "line" > < a name = "l01547" > < / a > < span class = "lineno" > 1547< / span >   r.col = doubleton_col;< / div >
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< div class = "line" > < a name = "l01548" > < / a > < span class = "lineno" > 1548< / span >   r.objective_coefficient = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[r.col];< / div >
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< div class = "line" > < a name = "l01549" > < / a > < span class = "lineno" > 1549< / span >   < span class = "keywordtype" > int< / span > < a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > = 0;< / div >
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< div class = "line" > < a name = "l01550" > < / a > < span class = "lineno" > 1550< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : original_matrix.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (r.col)) {< / div >
< div class = "line" > < a name = "l01551" > < / a > < span class = "lineno" > 1551< / span >   < span class = "keywordflow" > if< / span > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8b572400ae17e537ba55eb01667dd5c7" > IsRowMarked< / a > (e.row())) < span class = "keywordflow" > break< / span > ;< / div >
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< div class = "line" > < a name = "l01552" > < / a > < span class = "lineno" > 1552< / span >   r.row[< a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ] = e.row();< / div >
< div class = "line" > < a name = "l01553" > < / a > < span class = "lineno" > 1553< / span >   r.coeff[< a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ] = e.coefficient();< / div >
< div class = "line" > < a name = "l01554" > < / a > < span class = "lineno" > 1554< / span >   DCHECK_NE(0.0, e.coefficient());< / div >
< div class = "line" > < a name = "l01555" > < / a > < span class = "lineno" > 1555< / span >   ++< a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ;< / div >
< div class = "line" > < a name = "l01556" > < / a > < span class = "lineno" > 1556< / span >   }< / div >
< div class = "line" > < a name = "l01557" > < / a > < span class = "lineno" > 1557< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > != NUM_ROWS) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01558" > < / a > < span class = "lineno" > 1558< / span >   < / div >
< div class = "line" > < a name = "l01559" > < / a > < span class = "lineno" > 1559< / span >   < span class = "comment" > // Since the column didn' t touch any previously deleted row, we are sure< / span > < / div >
< div class = "line" > < a name = "l01560" > < / a > < span class = "lineno" > 1560< / span >   < span class = "comment" > // that the coefficients were left untouched.< / span > < / div >
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< div class = "line" > < a name = "l01561" > < / a > < span class = "lineno" > 1561< / span >   DCHECK_EQ(r.coeff[DELETED], transpose-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (r.row[DELETED]))< / div >
< div class = "line" > < a name = "l01562" > < / a > < span class = "lineno" > 1562< / span >   .< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a39a185056b395c7ed7e8d5c41df3bc6b" > LookUpCoefficient< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#ab65a327cfc2a74c15fa26b91f19acc64" > ColToRowIndex< / a > (r.col)));< / div >
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< div class = "line" > < a name = "l01563" > < / a > < span class = "lineno" > 1563< / span >   DCHECK_EQ(r.coeff[MODIFIED],< / div >
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< div class = "line" > < a name = "l01564" > < / a > < span class = "lineno" > 1564< / span >   transpose-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (r.row[MODIFIED]))< / div >
< div class = "line" > < a name = "l01565" > < / a > < span class = "lineno" > 1565< / span >   .< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a39a185056b395c7ed7e8d5c41df3bc6b" > LookUpCoefficient< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#ab65a327cfc2a74c15fa26b91f19acc64" > ColToRowIndex< / a > (r.col)));< / div >
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< div class = "line" > < a name = "l01566" > < / a > < span class = "lineno" > 1566< / span >   < / div >
< div class = "line" > < a name = "l01567" > < / a > < span class = "lineno" > 1567< / span >   < span class = "comment" > // We prefer deleting the row with the larger coefficient magnitude because< / span > < / div >
< div class = "line" > < a name = "l01568" > < / a > < span class = "lineno" > 1568< / span >   < span class = "comment" > // we will divide by this magnitude. TODO(user): Impact?< / span > < / div >
< div class = "line" > < a name = "l01569" > < / a > < span class = "lineno" > 1569< / span >   < span class = "keywordflow" > if< / span > (std::abs(r.coeff[DELETED]) < std::abs(r.coeff[MODIFIED])) {< / div >
< div class = "line" > < a name = "l01570" > < / a > < span class = "lineno" > 1570< / span >   std::swap(r.coeff[DELETED], r.coeff[MODIFIED]);< / div >
< div class = "line" > < a name = "l01571" > < / a > < span class = "lineno" > 1571< / span >   std::swap(r.row[DELETED], r.row[MODIFIED]);< / div >
< div class = "line" > < a name = "l01572" > < / a > < span class = "lineno" > 1572< / span >   }< / div >
< div class = "line" > < a name = "l01573" > < / a > < span class = "lineno" > 1573< / span >   < / div >
< div class = "line" > < a name = "l01574" > < / a > < span class = "lineno" > 1574< / span >   < span class = "comment" > // Save the deleted row for postsolve. Note that we remove it from the< / span > < / div >
< div class = "line" > < a name = "l01575" > < / a > < span class = "lineno" > 1575< / span >   < span class = "comment" > // transpose at the same time. This last operation is not strictly needed,< / span > < / div >
< div class = "line" > < a name = "l01576" > < / a > < span class = "lineno" > 1576< / span >   < span class = "comment" > // but it is faster to do it this way (both here and later when we will take< / span > < / div >
< div class = "line" > < a name = "l01577" > < / a > < span class = "lineno" > 1577< / span >   < span class = "comment" > // the transpose of the final transpose matrix).< / span > < / div >
< div class = "line" > < a name = "l01578" > < / a > < span class = "lineno" > 1578< / span >   r.deleted_row_as_column.Swap(< / div >
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< div class = "line" > < a name = "l01579" > < / a > < span class = "lineno" > 1579< / span >   transpose-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a1e9f788d4507f2461b4f775755aaf82e" > mutable_column< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (r.row[DELETED])));< / div >
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< div class = "line" > < a name = "l01580" > < / a > < span class = "lineno" > 1580< / span >   < / div >
< div class = "line" > < a name = "l01581" > < / a > < span class = "lineno" > 1581< / span >   < span class = "comment" > // Move the bound of the deleted constraint to the initially free variable.< / span > < / div >
< div class = "line" > < a name = "l01582" > < / a > < span class = "lineno" > 1582< / span >   {< / div >
< div class = "line" > < a name = "l01583" > < / a > < span class = "lineno" > 1583< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_variable_lb =< / div >
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< div class = "line" > < a name = "l01584" > < / a > < span class = "lineno" > 1584< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[r.row[DELETED]];< / div >
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< div class = "line" > < a name = "l01585" > < / a > < span class = "lineno" > 1585< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_variable_ub =< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01586" > < / a > < span class = "lineno" > 1586< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[r.row[DELETED]];< / div >
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< div class = "line" > < a name = "l01587" > < / a > < span class = "lineno" > 1587< / span >   new_variable_lb /= r.coeff[DELETED];< / div >
< div class = "line" > < a name = "l01588" > < / a > < span class = "lineno" > 1588< / span >   new_variable_ub /= r.coeff[DELETED];< / div >
< div class = "line" > < a name = "l01589" > < / a > < span class = "lineno" > 1589< / span >   < span class = "keywordflow" > if< / span > (r.coeff[DELETED] < 0.0) std::swap(new_variable_lb, new_variable_ub);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01590" > < / a > < span class = "lineno" > 1590< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093" > SetVariableBounds< / a > (r.col, new_variable_lb, new_variable_ub);< / div >
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< div class = "line" > < a name = "l01591" > < / a > < span class = "lineno" > 1591< / span >   }< / div >
< div class = "line" > < a name = "l01592" > < / a > < span class = "lineno" > 1592< / span >   < / div >
< div class = "line" > < a name = "l01593" > < / a > < span class = "lineno" > 1593< / span >   < span class = "comment" > // Add a multiple of the deleted row to the modified row except on< / span > < / div >
< div class = "line" > < a name = "l01594" > < / a > < span class = "lineno" > 1594< / span >   < span class = "comment" > // column r.col where the coefficient will be left unchanged.< / span > < / div >
< div class = "line" > < a name = "l01595" > < / a > < span class = "lineno" > 1595< / span >   r.deleted_row_as_column.AddMultipleToSparseVectorAndIgnoreCommonIndex(< / div >
< div class = "line" > < a name = "l01596" > < / a > < span class = "lineno" > 1596< / span >   -r.coeff[MODIFIED] / r.coeff[DELETED], < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab65a327cfc2a74c15fa26b91f19acc64" > ColToRowIndex< / a > (r.col),< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01597" > < / a > < span class = "lineno" > 1597< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .drop_tolerance(),< / div >
< div class = "line" > < a name = "l01598" > < / a > < span class = "lineno" > 1598< / span >   transpose-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a1e9f788d4507f2461b4f775755aaf82e" > mutable_column< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (r.row[MODIFIED])));< / div >
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< div class = "line" > < a name = "l01599" > < / a > < span class = "lineno" > 1599< / span >   < / div >
< div class = "line" > < a name = "l01600" > < / a > < span class = "lineno" > 1600< / span >   < span class = "comment" > // We also need to correct the objective value of the variables involved in< / span > < / div >
< div class = "line" > < a name = "l01601" > < / a > < span class = "lineno" > 1601< / span >   < span class = "comment" > // the deleted row.< / span > < / div >
< div class = "line" > < a name = "l01602" > < / a > < span class = "lineno" > 1602< / span >   < span class = "keywordflow" > if< / span > (r.objective_coefficient != 0.0) {< / div >
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< div class = "line" > < a name = "l01603" > < / a > < span class = "lineno" > 1603< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : r.deleted_row_as_column) {< / div >
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< div class = "line" > < a name = "l01604" > < / a > < span class = "lineno" > 1604< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e.row());< / div >
< div class = "line" > < a name = "l01605" > < / a > < span class = "lineno" > 1605< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > == r.col) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01606" > < / a > < span class = "lineno" > 1606< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_objective =< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01607" > < / a > < span class = "lineno" > 1607< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] -< / div >
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< div class = "line" > < a name = "l01608" > < / a > < span class = "lineno" > 1608< / span >   e.coefficient() * r.objective_coefficient / r.coeff[DELETED];< / div >
< div class = "line" > < a name = "l01609" > < / a > < span class = "lineno" > 1609< / span >   < / div >
< div class = "line" > < a name = "l01610" > < / a > < span class = "lineno" > 1610< / span >   < span class = "comment" > // This detects if the objective should actually be zero, but because of< / span > < / div >
< div class = "line" > < a name = "l01611" > < / a > < span class = "lineno" > 1611< / span >   < span class = "comment" > // the numerical error in the formula above, we have a really low< / span > < / div >
< div class = "line" > < a name = "l01612" > < / a > < span class = "lineno" > 1612< / span >   < span class = "comment" > // objective instead. The logic is the same as in< / span > < / div >
< div class = "line" > < a name = "l01613" > < / a > < span class = "lineno" > 1613< / span >   < span class = "comment" > // AddMultipleToSparseVectorAndIgnoreCommonIndex().< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01614" > < / a > < span class = "lineno" > 1614< / span >   < span class = "keywordflow" > if< / span > (std::abs(new_objective) > < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .drop_tolerance()) {< / div >
< div class = "line" > < a name = "l01615" > < / a > < span class = "lineno" > 1615< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9" > SetObjectiveCoefficient< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , new_objective);< / div >
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< div class = "line" > < a name = "l01616" > < / a > < span class = "lineno" > 1616< / span >   } < span class = "keywordflow" > else< / span > {< / div >
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< div class = "line" > < a name = "l01617" > < / a > < span class = "lineno" > 1617< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9" > SetObjectiveCoefficient< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , 0.0);< / div >
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< div class = "line" > < a name = "l01618" > < / a > < span class = "lineno" > 1618< / span >   }< / div >
< div class = "line" > < a name = "l01619" > < / a > < span class = "lineno" > 1619< / span >   }< / div >
< div class = "line" > < a name = "l01620" > < / a > < span class = "lineno" > 1620< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01621" > < / a > < span class = "lineno" > 1621< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2087c8376c03c247099a989f2990e6e8" > MarkRowForDeletion< / a > (r.row[DELETED]);< / div >
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< div class = "line" > < a name = "l01622" > < / a > < span class = "lineno" > 1622< / span >   restore_stack_.push_back(r);< / div >
< div class = "line" > < a name = "l01623" > < / a > < span class = "lineno" > 1623< / span >   }< / div >
< div class = "line" > < a name = "l01624" > < / a > < span class = "lineno" > 1624< / span >   < / div >
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< div class = "line" > < a name = "l01625" > < / a > < span class = "lineno" > 1625< / span >   < span class = "keywordflow" > if< / span > (!row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ()) {< / div >
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< div class = "line" > < a name = "l01626" > < / a > < span class = "lineno" > 1626< / span >   < span class = "comment" > // The order is important.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01627" > < / a > < span class = "lineno" > 1627< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a9ac8fe8120fdded43c5fa888bd696d3e" > UseTransposeMatrixAsReference< / a > ();< / div >
< div class = "line" > < a name = "l01628" > < / a > < span class = "lineno" > 1628< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac220cc5563c65b821d9d043010bb2121" > DeleteRows< / a > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a4dda252e2b65e3aa074c002daf6f86b8" > GetMarkedRows< / a > ());< / div >
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< div class = "line" > < a name = "l01629" > < / a > < span class = "lineno" > 1629< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01630" > < / a > < span class = "lineno" > 1630< / span >   }< / div >
< div class = "line" > < a name = "l01631" > < / a > < span class = "lineno" > 1631< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01632" > < / a > < span class = "lineno" > 1632< / span >   }< / div >
< div class = "line" > < a name = "l01633" > < / a > < span class = "lineno" > 1633< / span >   < / div >
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< div class = "line" > < a name = "l01634" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_doubleton_free_column_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 1634< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_doubleton_free_column_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > DoubletonFreeColumnPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l01635" > < / a > < span class = "lineno" > 1635< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01636" > < / a > < span class = "lineno" > 1636< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l01637" > < / a > < span class = "lineno" > 1637< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a43e3b399f53b38b75171071c9d730c5b" > RestoreDeletedRows< / a > (solution);< / div >
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< div class = "line" > < a name = "l01638" > < / a > < span class = "lineno" > 1638< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > RestoreInfo& r : < a class = "code" href = "namespaceutil.html#a1e2d5c05e25343bc8e4fbccce0000d51" > Reverse< / a > (restore_stack_)) {< / div >
< div class = "line" > < a name = "l01639" > < / a > < span class = "lineno" > 1639< / span >   < span class = "comment" > // Correct the constraint status.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01640" > < / a > < span class = "lineno" > 1640< / span >   < span class = "keywordflow" > switch< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [r.col]) {< / div >
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< div class = "line" > < a name = "l01641" > < / a > < span class = "lineno" > 1641< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > :< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01642" > < / a > < span class = "lineno" > 1642< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [r.row[DELETED]] =< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01643" > < / a > < span class = "lineno" > 1643< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > ConstraintStatus::FIXED_VALUE< / a > ;< / div >
< div class = "line" > < a name = "l01644" > < / a > < span class = "lineno" > 1644< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l01645" > < / a > < span class = "lineno" > 1645< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > :< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01646" > < / a > < span class = "lineno" > 1646< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [r.row[DELETED]] =< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01647" > < / a > < span class = "lineno" > 1647< / span >   r.coeff[DELETED] > 0.0 ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > < / div >
< div class = "line" > < a name = "l01648" > < / a > < span class = "lineno" > 1648< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l01649" > < / a > < span class = "lineno" > 1649< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l01650" > < / a > < span class = "lineno" > 1650< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > :< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01651" > < / a > < span class = "lineno" > 1651< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [r.row[DELETED]] =< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01652" > < / a > < span class = "lineno" > 1652< / span >   r.coeff[DELETED] > 0.0 ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > < / div >
< div class = "line" > < a name = "l01653" > < / a > < span class = "lineno" > 1653< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l01654" > < / a > < span class = "lineno" > 1654< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l01655" > < / a > < span class = "lineno" > 1655< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > :< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01656" > < / a > < span class = "lineno" > 1656< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [r.row[DELETED]] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a88c189a42c87aa49d667fc8ab76bc323" > ConstraintStatus::FREE< / a > ;< / div >
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< div class = "line" > < a name = "l01657" > < / a > < span class = "lineno" > 1657< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l01658" > < / a > < span class = "lineno" > 1658< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > :< / div >
< div class = "line" > < a name = "l01659" > < / a > < span class = "lineno" > 1659< / span >   < span class = "comment" > // The default is good here:< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01660" > < / a > < span class = "lineno" > 1660< / span >   DCHECK_EQ(solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [r.row[DELETED]],< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01661" > < / a > < span class = "lineno" > 1661< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae4ac03f6c9f00665644e868dd1fb9f1e" > ConstraintStatus::BASIC< / a > );< / div >
< div class = "line" > < a name = "l01662" > < / a > < span class = "lineno" > 1662< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l01663" > < / a > < span class = "lineno" > 1663< / span >   }< / div >
< div class = "line" > < a name = "l01664" > < / a > < span class = "lineno" > 1664< / span >   < / div >
< div class = "line" > < a name = "l01665" > < / a > < span class = "lineno" > 1665< / span >   < span class = "comment" > // Correct the primal variable value.< / span > < / div >
< div class = "line" > < a name = "l01666" > < / a > < span class = "lineno" > 1666< / span >   {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01667" > < / a > < span class = "lineno" > 1667< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_variable_value = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [r.col];< / div >
< div class = "line" > < a name = "l01668" > < / a > < span class = "lineno" > 1668< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : r.deleted_row_as_column) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01669" > < / a > < span class = "lineno" > 1669< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e.row());< / div >
< div class = "line" > < a name = "l01670" > < / a > < span class = "lineno" > 1670< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > == r.col) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01671" > < / a > < span class = "lineno" > 1671< / span >   new_variable_value -= (e.coefficient() / r.coeff[DELETED]) *< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01672" > < / a > < span class = "lineno" > 1672< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e.row())];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01673" > < / a > < span class = "lineno" > 1673< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01674" > < / a > < span class = "lineno" > 1674< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [r.col] = new_variable_value;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01675" > < / a > < span class = "lineno" > 1675< / span >   }< / div >
< div class = "line" > < a name = "l01676" > < / a > < span class = "lineno" > 1676< / span >   < / div >
< div class = "line" > < a name = "l01677" > < / a > < span class = "lineno" > 1677< / span >   < span class = "comment" > // In all cases, we will make the variable r.col VariableStatus::BASIC, so< / span > < / div >
< div class = "line" > < a name = "l01678" > < / a > < span class = "lineno" > 1678< / span >   < span class = "comment" > // we need to adjust the dual value of the deleted row so that the variable< / span > < / div >
< div class = "line" > < a name = "l01679" > < / a > < span class = "lineno" > 1679< / span >   < span class = "comment" > // reduced cost is zero. Note that there is nothing to do if the variable< / span > < / div >
< div class = "line" > < a name = "l01680" > < / a > < span class = "lineno" > 1680< / span >   < span class = "comment" > // was already basic.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01681" > < / a > < span class = "lineno" > 1681< / span >   < span class = "keywordflow" > if< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [r.col] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ) {< / div >
< div class = "line" > < a name = "l01682" > < / a > < span class = "lineno" > 1682< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [r.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01683" > < / a > < span class = "lineno" > 1683< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > current_reduced_cost =< / div >
< div class = "line" > < a name = "l01684" > < / a > < span class = "lineno" > 1684< / span >   r.objective_coefficient -< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01685" > < / a > < span class = "lineno" > 1685< / span >   r.coeff[MODIFIED] * solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [r.row[MODIFIED]];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01686" > < / a > < span class = "lineno" > 1686< / span >   < span class = "comment" > // We want current_reduced_cost - dual * coeff = 0, so:< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01687" > < / a > < span class = "lineno" > 1687< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [r.row[DELETED]] =< / div >
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< div class = "line" > < a name = "l01688" > < / a > < span class = "lineno" > 1688< / span >   current_reduced_cost / r.coeff[DELETED];< / div >
< div class = "line" > < a name = "l01689" > < / a > < span class = "lineno" > 1689< / span >   } < span class = "keywordflow" > else< / span > {< / div >
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< div class = "line" > < a name = "l01690" > < / a > < span class = "lineno" > 1690< / span >   DCHECK_EQ(solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [r.row[DELETED]], 0.0);< / div >
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< div class = "line" > < a name = "l01691" > < / a > < span class = "lineno" > 1691< / span >   }< / div >
< div class = "line" > < a name = "l01692" > < / a > < span class = "lineno" > 1692< / span >   }< / div >
< div class = "line" > < a name = "l01693" > < / a > < span class = "lineno" > 1693< / span >   }< / div >
< div class = "line" > < a name = "l01694" > < / a > < span class = "lineno" > 1694< / span >   < / div >
< div class = "line" > < a name = "l01695" > < / a > < span class = "lineno" > 1695< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l01696" > < / a > < span class = "lineno" > 1696< / span >   < span class = "comment" > // UnconstrainedVariablePreprocessor< / span > < / div >
< div class = "line" > < a name = "l01697" > < / a > < span class = "lineno" > 1697< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l01698" > < / a > < span class = "lineno" > 1698< / span >   < / div >
< div class = "line" > < a name = "l01699" > < / a > < span class = "lineno" > 1699< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l01700" > < / a > < span class = "lineno" > 1700< / span >   < / div >
< div class = "line" > < a name = "l01701" > < / a > < span class = "lineno" > 1701< / span >   < span class = "comment" > // Does the constraint block the variable to go to infinity in the given< / span > < / div >
< div class = "line" > < a name = "l01702" > < / a > < span class = "lineno" > 1702< / span >   < span class = "comment" > // direction? direction is either positive or negative and row is the index of< / span > < / div >
< div class = "line" > < a name = "l01703" > < / a > < span class = "lineno" > 1703< / span >   < span class = "comment" > // the constraint.< / span > < / div >
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< div class = "line" > < a name = "l01704" > < / a > < span class = "lineno" > 1704< / span >   < span class = "keywordtype" > bool< / span > IsConstraintBlockingVariable(< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > & lp, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > direction,< / div >
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< div class = "line" > < a name = "l01705" > < / a > < span class = "lineno" > 1705< / span >   RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
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< div class = "line" > < a name = "l01706" > < / a > < span class = "lineno" > 1706< / span >   < span class = "keywordflow" > return< / span > direction > 0.0 ? lp.< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > < / div >
< div class = "line" > < a name = "l01707" > < / a > < span class = "lineno" > 1707< / span >   : lp.< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] != -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ;< / div >
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< div class = "line" > < a name = "l01708" > < / a > < span class = "lineno" > 1708< / span >   }< / div >
< div class = "line" > < a name = "l01709" > < / a > < span class = "lineno" > 1709< / span >   < / div >
< div class = "line" > < a name = "l01710" > < / a > < span class = "lineno" > 1710< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l01711" > < / a > < span class = "lineno" > 1711< / span >   < / div >
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< div class = "line" > < a name = "l01712" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html#a16b556cc08c1f6802a387420e5d038f2" > 1712< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html#a16b556cc08c1f6802a387420e5d038f2" > UnconstrainedVariablePreprocessor::RemoveZeroCostUnconstrainedVariable< / a > (< / div >
< div class = "line" > < a name = "l01713" > < / a > < span class = "lineno" > 1713< / span >   ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > , < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l01714" > < / a > < span class = "lineno" > 1714< / span >   DCHECK_EQ(0.0, lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
< div class = "line" > < a name = "l01715" > < / a > < span class = "lineno" > 1715< / span >   < span class = "keywordflow" > if< / span > (deleted_rows_as_column_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ()) {< / div >
< div class = "line" > < a name = "l01716" > < / a > < span class = "lineno" > 1716< / span >   deleted_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#ae1b90982a83e1b025ebbc1c446980640" > PopulateFromZero< / a > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > (),< / div >
< div class = "line" > < a name = "l01717" > < / a > < span class = "lineno" > 1717< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ());< / div >
< div class = "line" > < a name = "l01718" > < / a > < span class = "lineno" > 1718< / span >   deleted_rows_as_column_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#ae1b90982a83e1b025ebbc1c446980640" > PopulateFromZero< / a > (< / div >
< div class = "line" > < a name = "l01719" > < / a > < span class = "lineno" > 1719< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab65a327cfc2a74c15fa26b91f19acc64" > ColToRowIndex< / a > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ()),< / div >
< div class = "line" > < a name = "l01720" > < / a > < span class = "lineno" > 1720< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ()));< / div >
< div class = "line" > < a name = "l01721" > < / a > < span class = "lineno" > 1721< / span >   rhs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > (), 0.0);< / div >
< div class = "line" > < a name = "l01722" > < / a > < span class = "lineno" > 1722< / span >   activity_sign_correction_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > (), 1.0);< / div >
< div class = "line" > < a name = "l01723" > < / a > < span class = "lineno" > 1723< / span >   is_unbounded_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > (), < span class = "keyword" > false< / span > );< / div >
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< div class = "line" > < a name = "l01724" > < / a > < span class = "lineno" > 1724< / span >   }< / div >
< div class = "line" > < a name = "l01725" > < / a > < span class = "lineno" > 1725< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > is_unbounded_up = (< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01726" > < / a > < span class = "lineno" > 1726< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_column.html" > SparseColumn< / a > & column = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l01727" > < / a > < span class = "lineno" > 1727< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : column) {< / div >
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< div class = "line" > < a name = "l01728" > < / a > < span class = "lineno" > 1728< / span >   < span class = "keyword" > const< / span > RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = e.row();< / div >
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< div class = "line" > < a name = "l01729" > < / a > < span class = "lineno" > 1729< / span >   < span class = "keywordflow" > if< / span > (!row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8b572400ae17e537ba55eb01667dd5c7" > IsRowMarked< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )) {< / div >
< div class = "line" > < a name = "l01730" > < / a > < span class = "lineno" > 1730< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2087c8376c03c247099a989f2990e6e8" > MarkRowForDeletion< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
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< div class = "line" > < a name = "l01731" > < / a > < span class = "lineno" > 1731< / span >   < span class = "keyword" > const< / span > ColIndex row_as_col = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01732" > < / a > < span class = "lineno" > 1732< / span >   deleted_rows_as_column_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a1e9f788d4507f2461b4f775755aaf82e" > mutable_column< / a > (row_as_col)< / div >
< div class = "line" > < a name = "l01733" > < / a > < span class = "lineno" > 1733< / span >   -> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af3346e19f245a59be830e9558002d2d4" > PopulateFromSparseVector< / a > (< / div >
< div class = "line" > < a name = "l01734" > < / a > < span class = "lineno" > 1734< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a2175025047722705a3af86e54229f9cd" > GetTransposeSparseMatrix< / a > ().< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (row_as_col));< / div >
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< div class = "line" > < a name = "l01735" > < / a > < span class = "lineno" > 1735< / span >   }< / div >
< div class = "line" > < a name = "l01736" > < / a > < span class = "lineno" > 1736< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > is_constraint_upper_bound_relevant =< / div >
< div class = "line" > < a name = "l01737" > < / a > < span class = "lineno" > 1737< / span >   e.coefficient() > 0.0 ? !is_unbounded_up : is_unbounded_up;< / div >
< div class = "line" > < a name = "l01738" > < / a > < span class = "lineno" > 1738< / span >   activity_sign_correction_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] =< / div >
< div class = "line" > < a name = "l01739" > < / a > < span class = "lineno" > 1739< / span >   is_constraint_upper_bound_relevant ? 1.0 : -1.0;< / div >
< div class = "line" > < a name = "l01740" > < / a > < span class = "lineno" > 1740< / span >   rhs_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = is_constraint_upper_bound_relevant< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01741" > < / a > < span class = "lineno" > 1741< / span >   ? lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]< / div >
< div class = "line" > < a name = "l01742" > < / a > < span class = "lineno" > 1742< / span >   : lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01743" > < / a > < span class = "lineno" > 1743< / span >   < / div >
< div class = "line" > < a name = "l01744" > < / a > < span class = "lineno" > 1744< / span >   < span class = "comment" > // TODO(user): Here, we may render the row free, so subsequent columns< / span > < / div >
< div class = "line" > < a name = "l01745" > < / a > < span class = "lineno" > 1745< / span >   < span class = "comment" > // processed by the columns loop in Run() have more chance to be removed.< / span > < / div >
< div class = "line" > < a name = "l01746" > < / a > < span class = "lineno" > 1746< / span >   < span class = "comment" > // However, we need to be more careful during the postsolve() if we do that.< / span > < / div >
< div class = "line" > < a name = "l01747" > < / a > < span class = "lineno" > 1747< / span >   }< / div >
< div class = "line" > < a name = "l01748" > < / a > < span class = "lineno" > 1748< / span >   is_unbounded_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01749" > < / a > < span class = "lineno" > 1749< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > initial_feasible_value = MinInMagnitudeOrZeroIfInfinite(< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01750" > < / a > < span class = "lineno" > 1750< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ], lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
< div class = "line" > < a name = "l01751" > < / a > < span class = "lineno" > 1751< / span >   deleted_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a1e9f788d4507f2461b4f775755aaf82e" > mutable_column< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af3346e19f245a59be830e9558002d2d4" > PopulateFromSparseVector< / a > (column);< / div >
< div class = "line" > < a name = "l01752" > < / a > < span class = "lineno" > 1752< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a43d852970601d1a979844a0aae79ed3d" > MarkColumnForDeletionWithState< / a > (< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01753" > < / a > < span class = "lineno" > 1753< / span >   < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , initial_feasible_value,< / div >
< div class = "line" > < a name = "l01754" > < / a > < span class = "lineno" > 1754< / span >   ComputeVariableStatus(initial_feasible_value,< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01755" > < / a > < span class = "lineno" > 1755< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ],< / div >
< div class = "line" > < a name = "l01756" > < / a > < span class = "lineno" > 1756< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]));< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01757" > < / a > < span class = "lineno" > 1757< / span >   }< / div >
< div class = "line" > < a name = "l01758" > < / a > < span class = "lineno" > 1758< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01759" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 1759< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > UnconstrainedVariablePreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l01760" > < / a > < span class = "lineno" > 1760< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01761" > < / a > < span class = "lineno" > 1761< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l01762" > < / a > < span class = "lineno" > 1762< / span >   < / div >
< div class = "line" > < a name = "l01763" > < / a > < span class = "lineno" > 1763< / span >   < span class = "comment" > // To simplify the problem if something is almost zero, we use the low< / span > < / div >
< div class = "line" > < a name = "l01764" > < / a > < span class = "lineno" > 1764< / span >   < span class = "comment" > // tolerance (1e-9 by default) to be defensive. But to detect an infeasibility< / span > < / div >
< div class = "line" > < a name = "l01765" > < / a > < span class = "lineno" > 1765< / span >   < span class = "comment" > // we want to be sure (especially since the problem is not scaled in the< / span > < / div >
< div class = "line" > < a name = "l01766" > < / a > < span class = "lineno" > 1766< / span >   < span class = "comment" > // presolver) so we use an higher tolerance.< / span > < / div >
< div class = "line" > < a name = "l01767" > < / a > < span class = "lineno" > 1767< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01768" > < / a > < span class = "lineno" > 1768< / span >   < span class = "comment" > // TODO(user): Expose it as a parameter. We could rename both to< / span > < / div >
< div class = "line" > < a name = "l01769" > < / a > < span class = "lineno" > 1769< / span >   < span class = "comment" > // preprocessor_low_tolerance and preprocessor_high_tolerance.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01770" > < / a > < span class = "lineno" > 1770< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > low_tolerance = < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .preprocessor_zero_tolerance();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01771" > < / a > < span class = "lineno" > 1771< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > high_tolerance = 1e-4;< / div >
< div class = "line" > < a name = "l01772" > < / a > < span class = "lineno" > 1772< / span >   < / div >
< div class = "line" > < a name = "l01773" > < / a > < span class = "lineno" > 1773< / span >   < span class = "comment" > // We start by the dual variable bounds from the constraints.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01774" > < / a > < span class = "lineno" > 1774< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ();< / div >
< div class = "line" > < a name = "l01775" > < / a > < span class = "lineno" > 1775< / span >   dual_lb_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_rows, -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l01776" > < / a > < span class = "lineno" > 1776< / span >   dual_ub_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_rows, < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01777" > < / a > < span class = "lineno" > 1777< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01778" > < / a > < span class = "lineno" > 1778< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01779" > < / a > < span class = "lineno" > 1779< / span >   dual_ub_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = 0.0;< / div >
< div class = "line" > < a name = "l01780" > < / a > < span class = "lineno" > 1780< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01781" > < / a > < span class = "lineno" > 1781< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01782" > < / a > < span class = "lineno" > 1782< / span >   dual_lb_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = 0.0;< / div >
< div class = "line" > < a name = "l01783" > < / a > < span class = "lineno" > 1783< / span >   }< / div >
< div class = "line" > < a name = "l01784" > < / a > < span class = "lineno" > 1784< / span >   }< / div >
< div class = "line" > < a name = "l01785" > < / a > < span class = "lineno" > 1785< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01786" > < / a > < span class = "lineno" > 1786< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
< div class = "line" > < a name = "l01787" > < / a > < span class = "lineno" > 1787< / span >   may_have_participated_lb_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l01788" > < / a > < span class = "lineno" > 1788< / span >   may_have_participated_ub_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, < span class = "keyword" > false< / span > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01789" > < / a > < span class = "lineno" > 1789< / span >   < / div >
< div class = "line" > < a name = "l01790" > < / a > < span class = "lineno" > 1790< / span >   < span class = "comment" > // We maintain a queue of columns to process.< / span > < / div >
< div class = "line" > < a name = "l01791" > < / a > < span class = "lineno" > 1791< / span >   std::deque< ColIndex> columns_to_process;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01792" > < / a > < span class = "lineno" > 1792< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseBooleanRow< / a > in_columns_to_process(num_cols, < span class = "keyword" > true< / span > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01793" > < / a > < span class = "lineno" > 1793< / span >   std::vector< RowIndex> changed_rows;< / div >
< div class = "line" > < a name = "l01794" > < / a > < span class = "lineno" > 1794< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l01795" > < / a > < span class = "lineno" > 1795< / span >   columns_to_process.push_back(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l01796" > < / a > < span class = "lineno" > 1796< / span >   }< / div >
< div class = "line" > < a name = "l01797" > < / a > < span class = "lineno" > 1797< / span >   < / div >
< div class = "line" > < a name = "l01798" > < / a > < span class = "lineno" > 1798< / span >   < span class = "comment" > // Arbitrary limit to avoid corner cases with long loops.< / span > < / div >
< div class = "line" > < a name = "l01799" > < / a > < span class = "lineno" > 1799< / span >   < span class = "comment" > // TODO(user): expose this as a parameter? IMO it isn' t really needed as we< / span > < / div >
< div class = "line" > < a name = "l01800" > < / a > < span class = "lineno" > 1800< / span >   < span class = "comment" > // shouldn' t reach this limit except in corner cases.< / span > < / div >
< div class = "line" > < a name = "l01801" > < / a > < span class = "lineno" > 1801< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > limit = 5 * num_cols.value();< / div >
< div class = "line" > < a name = "l01802" > < / a > < span class = "lineno" > 1802< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > count = 0; !columns_to_process.empty() & & count < limit; ++count) {< / div >
< div class = "line" > < a name = "l01803" > < / a > < span class = "lineno" > 1803< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = columns_to_process.front();< / div >
< div class = "line" > < a name = "l01804" > < / a > < span class = "lineno" > 1804< / span >   columns_to_process.pop_front();< / div >
< div class = "line" > < a name = "l01805" > < / a > < span class = "lineno" > 1805< / span >   in_columns_to_process[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < span class = "keyword" > false< / span > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01806" > < / a > < span class = "lineno" > 1806< / span >   < span class = "keywordflow" > if< / span > (column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a1fbdcd623d96ea5e73d664ce0c6bd002" > IsColumnMarked< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) < span class = "keywordflow" > continue< / span > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01807" > < / a > < span class = "lineno" > 1807< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01808" > < / a > < span class = "lineno" > 1808< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_column.html" > SparseColumn< / a > & column = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01809" > < / a > < span class = "lineno" > 1809< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > col_cost =< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01810" > < / a > < span class = "lineno" > 1810< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a6137c2df856cf2634f9bb259d2aace2b" > GetObjectiveCoefficientForMinimizationVersion< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l01811" > < / a > < span class = "lineno" > 1811< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > col_lb = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01812" > < / a > < span class = "lineno" > 1812< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > col_ub = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01813" > < / a > < span class = "lineno" > 1813< / span >   < / div >
< div class = "line" > < a name = "l01814" > < / a > < span class = "lineno" > 1814< / span >   < span class = "comment" > // Compute the bounds on the reduced costs of this column.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01815" > < / a > < span class = "lineno" > 1815< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html" > SumWithNegativeInfiniteAndOneMissing< / a > rc_lb;< / div >
< div class = "line" > < a name = "l01816" > < / a > < span class = "lineno" > 1816< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html" > SumWithPositiveInfiniteAndOneMissing< / a > rc_ub;< / div >
< div class = "line" > < a name = "l01817" > < / a > < span class = "lineno" > 1817< / span >   rc_lb.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#a8e16e2adc11d40ca12b2735ae21623b8" > Add< / a > (col_cost);< / div >
< div class = "line" > < a name = "l01818" > < / a > < span class = "lineno" > 1818< / span >   rc_ub.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#a8e16e2adc11d40ca12b2735ae21623b8" > Add< / a > (col_cost);< / div >
< div class = "line" > < a name = "l01819" > < / a > < span class = "lineno" > 1819< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : column) {< / div >
< div class = "line" > < a name = "l01820" > < / a > < span class = "lineno" > 1820< / span >   < span class = "keywordflow" > if< / span > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8b572400ae17e537ba55eb01667dd5c7" > IsRowMarked< / a > (e.row())) < span class = "keywordflow" > continue< / span > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01821" > < / a > < span class = "lineno" > 1821< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > coeff = e.coefficient();< / div >
< div class = "line" > < a name = "l01822" > < / a > < span class = "lineno" > 1822< / span >   < span class = "keywordflow" > if< / span > (coeff > 0.0) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01823" > < / a > < span class = "lineno" > 1823< / span >   rc_lb.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#a8e16e2adc11d40ca12b2735ae21623b8" > Add< / a > (-coeff * dual_ub_[e.row()]);< / div >
< div class = "line" > < a name = "l01824" > < / a > < span class = "lineno" > 1824< / span >   rc_ub.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#a8e16e2adc11d40ca12b2735ae21623b8" > Add< / a > (-coeff * dual_lb_[e.row()]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01825" > < / a > < span class = "lineno" > 1825< / span >   } < span class = "keywordflow" > else< / span > {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01826" > < / a > < span class = "lineno" > 1826< / span >   rc_lb.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#a8e16e2adc11d40ca12b2735ae21623b8" > Add< / a > (-coeff * dual_lb_[e.row()]);< / div >
< div class = "line" > < a name = "l01827" > < / a > < span class = "lineno" > 1827< / span >   rc_ub.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#a8e16e2adc11d40ca12b2735ae21623b8" > Add< / a > (-coeff * dual_ub_[e.row()]);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01828" > < / a > < span class = "lineno" > 1828< / span >   }< / div >
< div class = "line" > < a name = "l01829" > < / a > < span class = "lineno" > 1829< / span >   }< / div >
< div class = "line" > < a name = "l01830" > < / a > < span class = "lineno" > 1830< / span >   < / div >
< div class = "line" > < a name = "l01831" > < / a > < span class = "lineno" > 1831< / span >   < span class = "comment" > // If the reduced cost domain do not contain zero (modulo the tolerance), we< / span > < / div >
< div class = "line" > < a name = "l01832" > < / a > < span class = "lineno" > 1832< / span >   < span class = "comment" > // can move the variable to its corresponding bound. Note that we need to be< / span > < / div >
< div class = "line" > < a name = "l01833" > < / a > < span class = "lineno" > 1833< / span >   < span class = "comment" > // careful that this variable didn' t participate in creating the used< / span > < / div >
< div class = "line" > < a name = "l01834" > < / a > < span class = "lineno" > 1834< / span >   < span class = "comment" > // reduced cost bound in the first place.< / span > < / div >
< div class = "line" > < a name = "l01835" > < / a > < span class = "lineno" > 1835< / span >   < span class = "keywordtype" > bool< / span > can_be_removed = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01836" > < / a > < span class = "lineno" > 1836< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ;< / div >
< div class = "line" > < a name = "l01837" > < / a > < span class = "lineno" > 1837< / span >   < span class = "keywordtype" > bool< / span > rc_is_away_from_zero;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01838" > < / a > < span class = "lineno" > 1838< / span >   < span class = "keywordflow" > if< / span > (rc_ub.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af7c8b5d68bfc286dbb52a547917de1af" > Sum< / a > () < = low_tolerance) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01839" > < / a > < span class = "lineno" > 1839< / span >   can_be_removed = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01840" > < / a > < span class = "lineno" > 1840< / span >   < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = col_ub;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01841" > < / a > < span class = "lineno" > 1841< / span >   rc_is_away_from_zero = rc_ub.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af7c8b5d68bfc286dbb52a547917de1af" > Sum< / a > () < = -high_tolerance;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01842" > < / a > < span class = "lineno" > 1842< / span >   can_be_removed = !may_have_participated_ub_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01843" > < / a > < span class = "lineno" > 1843< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01844" > < / a > < span class = "lineno" > 1844< / span >   < span class = "keywordflow" > if< / span > (rc_lb.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af7c8b5d68bfc286dbb52a547917de1af" > Sum< / a > () > = -low_tolerance) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01845" > < / a > < span class = "lineno" > 1845< / span >   < span class = "comment" > // The second condition is here for the case we can choose one of the two< / span > < / div >
< div class = "line" > < a name = "l01846" > < / a > < span class = "lineno" > 1846< / span >   < span class = "comment" > // directions.< / span > < / div >
< div class = "line" > < a name = "l01847" > < / a > < span class = "lineno" > 1847< / span >   < span class = "keywordflow" > if< / span > (!can_be_removed || !< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > )) {< / div >
< div class = "line" > < a name = "l01848" > < / a > < span class = "lineno" > 1848< / span >   can_be_removed = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01849" > < / a > < span class = "lineno" > 1849< / span >   < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > = col_lb;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01850" > < / a > < span class = "lineno" > 1850< / span >   rc_is_away_from_zero = rc_lb.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af7c8b5d68bfc286dbb52a547917de1af" > Sum< / a > () > = high_tolerance;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01851" > < / a > < span class = "lineno" > 1851< / span >   can_be_removed = !may_have_participated_lb_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l01852" > < / a > < span class = "lineno" > 1852< / span >   }< / div >
< div class = "line" > < a name = "l01853" > < / a > < span class = "lineno" > 1853< / span >   }< / div >
< div class = "line" > < a name = "l01854" > < / a > < span class = "lineno" > 1854< / span >   < / div >
< div class = "line" > < a name = "l01855" > < / a > < span class = "lineno" > 1855< / span >   < span class = "keywordflow" > if< / span > (can_be_removed) {< / div >
< div class = "line" > < a name = "l01856" > < / a > < span class = "lineno" > 1856< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > )) {< / div >
< div class = "line" > < a name = "l01857" > < / a > < span class = "lineno" > 1857< / span >   < span class = "comment" > // Note that in MIP context, this assumes that the bounds of an integer< / span > < / div >
< div class = "line" > < a name = "l01858" > < / a > < span class = "lineno" > 1858< / span >   < span class = "comment" > // variable are integer.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01859" > < / a > < span class = "lineno" > 1859< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a43d852970601d1a979844a0aae79ed3d" > MarkColumnForDeletionWithState< / a > (< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01860" > < / a > < span class = "lineno" > 1860< / span >   < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > ,< / div >
< div class = "line" > < a name = "l01861" > < / a > < span class = "lineno" > 1861< / span >   ComputeVariableStatus(< a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > , col_lb, col_ub));< / div >
< div class = "line" > < a name = "l01862" > < / a > < span class = "lineno" > 1862< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01863" > < / a > < span class = "lineno" > 1863< / span >   }< / div >
< div class = "line" > < a name = "l01864" > < / a > < span class = "lineno" > 1864< / span >   < / div >
< div class = "line" > < a name = "l01865" > < / a > < span class = "lineno" > 1865< / span >   < span class = "comment" > // If the target bound is infinite and the reduced cost bound is non-zero,< / span > < / div >
< div class = "line" > < a name = "l01866" > < / a > < span class = "lineno" > 1866< / span >   < span class = "comment" > // then the problem is ProblemStatus::INFEASIBLE_OR_UNBOUNDED.< / span > < / div >
< div class = "line" > < a name = "l01867" > < / a > < span class = "lineno" > 1867< / span >   < span class = "keywordflow" > if< / span > (rc_is_away_from_zero) {< / div >
< div class = "line" > < a name = "l01868" > < / a > < span class = "lineno" > 1868< / span >   VLOG(1) < < < span class = "stringliteral" > " Problem INFEASIBLE_OR_UNBOUNDED, variable " < / span > < < < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < / div >
< div class = "line" > < a name = "l01869" > < / a > < span class = "lineno" > 1869< / span >   < < < span class = "stringliteral" > " can move to " < / span > < < < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01870" > < / a > < span class = "lineno" > 1870< / span >   < < < span class = "stringliteral" > " and its reduced cost is in [" < / span > < < rc_lb.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af7c8b5d68bfc286dbb52a547917de1af" > Sum< / a > () < < < span class = "stringliteral" > " , " < / span > < / div >
< div class = "line" > < a name = "l01871" > < / a > < span class = "lineno" > 1871< / span >   < < rc_ub.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af7c8b5d68bfc286dbb52a547917de1af" > Sum< / a > () < < < span class = "stringliteral" > " ]" < / span > ;< / div >
< div class = "line" > < a name = "l01872" > < / a > < span class = "lineno" > 1872< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::INFEASIBLE_OR_UNBOUNDED;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01873" > < / a > < span class = "lineno" > 1873< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01874" > < / a > < span class = "lineno" > 1874< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01875" > < / a > < span class = "lineno" > 1875< / span >   < span class = "comment" > // We can remove this column and all its constraints! We just need to< / span > < / div >
< div class = "line" > < a name = "l01876" > < / a > < span class = "lineno" > 1876< / span >   < span class = "comment" > // choose proper variable values during the call to RecoverSolution()< / span > < / div >
< div class = "line" > < a name = "l01877" > < / a > < span class = "lineno" > 1877< / span >   < span class = "comment" > // that make all the constraints satisfiable. Unfortunately, this is not< / span > < / div >
< div class = "line" > < a name = "l01878" > < / a > < span class = "lineno" > 1878< / span >   < span class = "comment" > // so easy to do in the general case, so we only deal with a simpler< / span > < / div >
< div class = "line" > < a name = "l01879" > < / a > < span class = "lineno" > 1879< / span >   < span class = "comment" > // case when the cost of the variable is zero, and the constraints do< / span > < / div >
< div class = "line" > < a name = "l01880" > < / a > < span class = "lineno" > 1880< / span >   < span class = "comment" > // not block it in one direction.< / span > < / div >
< div class = "line" > < a name = "l01881" > < / a > < span class = "lineno" > 1881< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l01882" > < / a > < span class = "lineno" > 1882< / span >   < span class = "comment" > // TODO(user): deal with the more generic case.< / span > < / div >
< div class = "line" > < a name = "l01883" > < / a > < span class = "lineno" > 1883< / span >   < span class = "keywordflow" > if< / span > (col_cost != 0.0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01884" > < / a > < span class = "lineno" > 1884< / span >   < span class = "keywordtype" > bool< / span > skip = < span class = "keyword" > false< / span > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01885" > < / a > < span class = "lineno" > 1885< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : column) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01886" > < / a > < span class = "lineno" > 1886< / span >   < span class = "comment" > // Note that it is important to check the rows that are already< / span > < / div >
< div class = "line" > < a name = "l01887" > < / a > < span class = "lineno" > 1887< / span >   < span class = "comment" > // deleted here, otherwise the post-solve will not work.< / span > < / div >
< div class = "line" > < a name = "l01888" > < / a > < span class = "lineno" > 1888< / span >   < span class = "keywordflow" > if< / span > (IsConstraintBlockingVariable(*lp, e.coefficient(), e.row())) {< / div >
< div class = "line" > < a name = "l01889" > < / a > < span class = "lineno" > 1889< / span >   skip = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01890" > < / a > < span class = "lineno" > 1890< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l01891" > < / a > < span class = "lineno" > 1891< / span >   }< / div >
< div class = "line" > < a name = "l01892" > < / a > < span class = "lineno" > 1892< / span >   }< / div >
< div class = "line" > < a name = "l01893" > < / a > < span class = "lineno" > 1893< / span >   < span class = "keywordflow" > if< / span > (skip) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01894" > < / a > < span class = "lineno" > 1894< / span >   < / div >
< div class = "line" > < a name = "l01895" > < / a > < span class = "lineno" > 1895< / span >   < span class = "comment" > // TODO(user): this also works if the variable is integer, but we must< / span > < / div >
< div class = "line" > < a name = "l01896" > < / a > < span class = "lineno" > 1896< / span >   < span class = "comment" > // choose an integer value during the post-solve. Implement this.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01897" > < / a > < span class = "lineno" > 1897< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a3ad0a2aeb2c7f12fb9d3439a480ffbde" > in_mip_context_< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01898" > < / a > < span class = "lineno" > 1898< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html#a16b556cc08c1f6802a387420e5d038f2" > RemoveZeroCostUnconstrainedVariable< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > , lp);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01899" > < / a > < span class = "lineno" > 1899< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01900" > < / a > < span class = "lineno" > 1900< / span >   }< / div >
< div class = "line" > < a name = "l01901" > < / a > < span class = "lineno" > 1901< / span >   }< / div >
< div class = "line" > < a name = "l01902" > < / a > < span class = "lineno" > 1902< / span >   < / div >
< div class = "line" > < a name = "l01903" > < / a > < span class = "lineno" > 1903< / span >   < span class = "comment" > // The rest of the code will update the dual bounds. There is no need to do< / span > < / div >
< div class = "line" > < a name = "l01904" > < / a > < span class = "lineno" > 1904< / span >   < span class = "comment" > // it if the column was removed or if it is not unconstrained in some< / span > < / div >
< div class = "line" > < a name = "l01905" > < / a > < span class = "lineno" > 1905< / span >   < span class = "comment" > // direction.< / span > < / div >
< div class = "line" > < a name = "l01906" > < / a > < span class = "lineno" > 1906< / span >   DCHECK(!can_be_removed);< / div >
< div class = "line" > < a name = "l01907" > < / a > < span class = "lineno" > 1907< / span >   < span class = "keywordflow" > if< / span > (col_lb != -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > & & col_ub != < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l01908" > < / a > < span class = "lineno" > 1908< / span >   < / div >
< div class = "line" > < a name = "l01909" > < / a > < span class = "lineno" > 1909< / span >   < span class = "comment" > // For MIP, we only exploit the constraints. TODO(user): It should probably< / span > < / div >
< div class = "line" > < a name = "l01910" > < / a > < span class = "lineno" > 1910< / span >   < span class = "comment" > // work with only small modification, investigate.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01911" > < / a > < span class = "lineno" > 1911< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a3ad0a2aeb2c7f12fb9d3439a480ffbde" > in_mip_context_< / a > ) < span class = "keywordflow" > continue< / span > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01912" > < / a > < span class = "lineno" > 1912< / span >   < / div >
< div class = "line" > < a name = "l01913" > < / a > < span class = "lineno" > 1913< / span >   changed_rows.clear();< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01914" > < / a > < span class = "lineno" > 1914< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : column) {< / div >
< div class = "line" > < a name = "l01915" > < / a > < span class = "lineno" > 1915< / span >   < span class = "keywordflow" > if< / span > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8b572400ae17e537ba55eb01667dd5c7" > IsRowMarked< / a > (e.row())) < span class = "keywordflow" > continue< / span > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01916" > < / a > < span class = "lineno" > 1916< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > c = e.coefficient();< / div >
< div class = "line" > < a name = "l01917" > < / a > < span class = "lineno" > 1917< / span >   < span class = "keyword" > const< / span > RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = e.row();< / div >
< div class = "line" > < a name = "l01918" > < / a > < span class = "lineno" > 1918< / span >   < span class = "keywordflow" > if< / span > (col_ub == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l01919" > < / a > < span class = "lineno" > 1919< / span >   < span class = "keywordflow" > if< / span > (c > 0.0) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01920" > < / a > < span class = "lineno" > 1920< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > candidate = rc_ub.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af6e4d9c2405447b44b4cf701e43e2200" > SumWithout< / a > (-c * dual_lb_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) / c;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01921" > < / a > < span class = "lineno" > 1921< / span >   < span class = "keywordflow" > if< / span > (candidate < dual_ub_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) {< / div >
< div class = "line" > < a name = "l01922" > < / a > < span class = "lineno" > 1922< / span >   dual_ub_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = candidate;< / div >
< div class = "line" > < a name = "l01923" > < / a > < span class = "lineno" > 1923< / span >   may_have_participated_lb_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01924" > < / a > < span class = "lineno" > 1924< / span >   changed_rows.push_back(< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l01925" > < / a > < span class = "lineno" > 1925< / span >   }< / div >
< div class = "line" > < a name = "l01926" > < / a > < span class = "lineno" > 1926< / span >   } < span class = "keywordflow" > else< / span > {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01927" > < / a > < span class = "lineno" > 1927< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > candidate = rc_ub.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af6e4d9c2405447b44b4cf701e43e2200" > SumWithout< / a > (-c * dual_ub_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) / c;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01928" > < / a > < span class = "lineno" > 1928< / span >   < span class = "keywordflow" > if< / span > (candidate > dual_lb_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) {< / div >
< div class = "line" > < a name = "l01929" > < / a > < span class = "lineno" > 1929< / span >   dual_lb_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = candidate;< / div >
< div class = "line" > < a name = "l01930" > < / a > < span class = "lineno" > 1930< / span >   may_have_participated_lb_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01931" > < / a > < span class = "lineno" > 1931< / span >   changed_rows.push_back(< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l01932" > < / a > < span class = "lineno" > 1932< / span >   }< / div >
< div class = "line" > < a name = "l01933" > < / a > < span class = "lineno" > 1933< / span >   }< / div >
< div class = "line" > < a name = "l01934" > < / a > < span class = "lineno" > 1934< / span >   }< / div >
< div class = "line" > < a name = "l01935" > < / a > < span class = "lineno" > 1935< / span >   < span class = "keywordflow" > if< / span > (col_lb == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l01936" > < / a > < span class = "lineno" > 1936< / span >   < span class = "keywordflow" > if< / span > (c > 0.0) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01937" > < / a > < span class = "lineno" > 1937< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > candidate = rc_lb.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af6e4d9c2405447b44b4cf701e43e2200" > SumWithout< / a > (-c * dual_ub_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) / c;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01938" > < / a > < span class = "lineno" > 1938< / span >   < span class = "keywordflow" > if< / span > (candidate > dual_lb_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) {< / div >
< div class = "line" > < a name = "l01939" > < / a > < span class = "lineno" > 1939< / span >   dual_lb_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = candidate;< / div >
< div class = "line" > < a name = "l01940" > < / a > < span class = "lineno" > 1940< / span >   may_have_participated_ub_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01941" > < / a > < span class = "lineno" > 1941< / span >   changed_rows.push_back(< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l01942" > < / a > < span class = "lineno" > 1942< / span >   }< / div >
< div class = "line" > < a name = "l01943" > < / a > < span class = "lineno" > 1943< / span >   } < span class = "keywordflow" > else< / span > {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01944" > < / a > < span class = "lineno" > 1944< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > candidate = rc_lb.< a class = "code" href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af6e4d9c2405447b44b4cf701e43e2200" > SumWithout< / a > (-c * dual_lb_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) / c;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01945" > < / a > < span class = "lineno" > 1945< / span >   < span class = "keywordflow" > if< / span > (candidate < dual_ub_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) {< / div >
< div class = "line" > < a name = "l01946" > < / a > < span class = "lineno" > 1946< / span >   dual_ub_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = candidate;< / div >
< div class = "line" > < a name = "l01947" > < / a > < span class = "lineno" > 1947< / span >   may_have_participated_ub_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01948" > < / a > < span class = "lineno" > 1948< / span >   changed_rows.push_back(< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l01949" > < / a > < span class = "lineno" > 1949< / span >   }< / div >
< div class = "line" > < a name = "l01950" > < / a > < span class = "lineno" > 1950< / span >   }< / div >
< div class = "line" > < a name = "l01951" > < / a > < span class = "lineno" > 1951< / span >   }< / div >
< div class = "line" > < a name = "l01952" > < / a > < span class = "lineno" > 1952< / span >   }< / div >
< div class = "line" > < a name = "l01953" > < / a > < span class = "lineno" > 1953< / span >   < / div >
< div class = "line" > < a name = "l01954" > < / a > < span class = "lineno" > 1954< / span >   < span class = "keywordflow" > if< / span > (!changed_rows.empty()) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01955" > < / a > < span class = "lineno" > 1955< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > SparseMatrix< / a > & transpose = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a2175025047722705a3af86e54229f9cd" > GetTransposeSparseMatrix< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01956" > < / a > < span class = "lineno" > 1956< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > : changed_rows) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01957" > < / a > < span class = "lineno" > 1957< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > entry :< / div >
< div class = "line" > < a name = "l01958" > < / a > < span class = "lineno" > 1958< / span >   transpose.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ))) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01959" > < / a > < span class = "lineno" > 1959< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (entry.row());< / div >
< div class = "line" > < a name = "l01960" > < / a > < span class = "lineno" > 1960< / span >   < span class = "keywordflow" > if< / span > (!in_columns_to_process[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l01961" > < / a > < span class = "lineno" > 1961< / span >   columns_to_process.push_back(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l01962" > < / a > < span class = "lineno" > 1962< / span >   in_columns_to_process[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01963" > < / a > < span class = "lineno" > 1963< / span >   }< / div >
< div class = "line" > < a name = "l01964" > < / a > < span class = "lineno" > 1964< / span >   }< / div >
< div class = "line" > < a name = "l01965" > < / a > < span class = "lineno" > 1965< / span >   }< / div >
< div class = "line" > < a name = "l01966" > < / a > < span class = "lineno" > 1966< / span >   }< / div >
< div class = "line" > < a name = "l01967" > < / a > < span class = "lineno" > 1967< / span >   }< / div >
< div class = "line" > < a name = "l01968" > < / a > < span class = "lineno" > 1968< / span >   < / div >
< div class = "line" > < a name = "l01969" > < / a > < span class = "lineno" > 1969< / span >   < span class = "comment" > // Change the rhs to reflect the fixed variables. Note that is important to do< / span > < / div >
< div class = "line" > < a name = "l01970" > < / a > < span class = "lineno" > 1970< / span >   < span class = "comment" > // that after all the calls to RemoveZeroCostUnconstrainedVariable() because< / span > < / div >
< div class = "line" > < a name = "l01971" > < / a > < span class = "lineno" > 1971< / span >   < span class = "comment" > // RemoveZeroCostUnconstrainedVariable() needs to store the rhs before this< / span > < / div >
< div class = "line" > < a name = "l01972" > < / a > < span class = "lineno" > 1972< / span >   < span class = "comment" > // modification!< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01973" > < / a > < span class = "lineno" > 1973< / span >   < span class = "keyword" > const< / span > ColIndex end = column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a6afccf8c0c7105ba45b8d7bd47830239" > GetMarkedColumns< / a > ().< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01974" > < / a > < span class = "lineno" > 1974< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < end; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01975" > < / a > < span class = "lineno" > 1975< / span >   < span class = "keywordflow" > if< / span > (column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a1fbdcd623d96ea5e73d664ce0c6bd002" > IsColumnMarked< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01976" > < / a > < span class = "lineno" > 1976< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > =< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01977" > < / a > < span class = "lineno" > 1977< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#abf42c94e770b44d463ca3d13cda889c6" > GetStoredValue< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01978" > < / a > < span class = "lineno" > 1978< / span >   SubtractColumnMultipleFromConstraintBound(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > , lp);< / div >
< div class = "line" > < a name = "l01979" > < / a > < span class = "lineno" > 1979< / span >   }< / div >
< div class = "line" > < a name = "l01980" > < / a > < span class = "lineno" > 1980< / span >   }< / div >
< div class = "line" > < a name = "l01981" > < / a > < span class = "lineno" > 1981< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01982" > < / a > < span class = "lineno" > 1982< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac59fd9cddfe284bf9dc7581ed631ce8d" > DeleteColumns< / a > (column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a6afccf8c0c7105ba45b8d7bd47830239" > GetMarkedColumns< / a > ());< / div >
< div class = "line" > < a name = "l01983" > < / a > < span class = "lineno" > 1983< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac220cc5563c65b821d9d043010bb2121" > DeleteRows< / a > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a4dda252e2b65e3aa074c002daf6f86b8" > GetMarkedRows< / a > ());< / div >
< div class = "line" > < a name = "l01984" > < / a > < span class = "lineno" > 1984< / span >   < span class = "keywordflow" > return< / span > !column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > () || !row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01985" > < / a > < span class = "lineno" > 1985< / span >   }< / div >
< div class = "line" > < a name = "l01986" > < / a > < span class = "lineno" > 1986< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01987" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 1987< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > UnconstrainedVariablePreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l01988" > < / a > < span class = "lineno" > 1988< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l01989" > < / a > < span class = "lineno" > 1989< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01990" > < / a > < span class = "lineno" > 1990< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01991" > < / a > < span class = "lineno" > 1991< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#ab73f53154d99b3cd13dae72fd418985d" > RestoreDeletedColumns< / a > (solution);< / div >
< div class = "line" > < a name = "l01992" > < / a > < span class = "lineno" > 1992< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a43e3b399f53b38b75171071c9d730c5b" > RestoreDeletedRows< / a > (solution);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01993" > < / a > < span class = "lineno" > 1993< / span >   < / div >
< div class = "line" > < a name = "l01994" > < / a > < span class = "lineno" > 1994< / span >   < span class = "comment" > // Compute the last deleted column index for each deleted rows.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01995" > < / a > < span class = "lineno" > 1995< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
< div class = "line" > < a name = "l01996" > < / a > < span class = "lineno" > 1996< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > RowToColMapping< / a > last_deleted_column(num_rows, < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l01997" > < / a > < span class = "lineno" > 1997< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l01998" > < / a > < span class = "lineno" > 1998< / span >   < span class = "keywordflow" > if< / span > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8b572400ae17e537ba55eb01667dd5c7" > IsRowMarked< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )) {< / div >
< div class = "line" > < a name = "l01999" > < / a > < span class = "lineno" > 1999< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e :< / div >
< div class = "line" > < a name = "l02000" > < / a > < span class = "lineno" > 2000< / span >   deleted_rows_as_column_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ))) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02001" > < / a > < span class = "lineno" > 2001< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e.row());< / div >
< div class = "line" > < a name = "l02002" > < / a > < span class = "lineno" > 2002< / span >   < span class = "keywordflow" > if< / span > (is_unbounded_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l02003" > < / a > < span class = "lineno" > 2003< / span >   last_deleted_column[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ;< / div >
< div class = "line" > < a name = "l02004" > < / a > < span class = "lineno" > 2004< / span >   }< / div >
< div class = "line" > < a name = "l02005" > < / a > < span class = "lineno" > 2005< / span >   }< / div >
< div class = "line" > < a name = "l02006" > < / a > < span class = "lineno" > 2006< / span >   }< / div >
< div class = "line" > < a name = "l02007" > < / a > < span class = "lineno" > 2007< / span >   }< / div >
< div class = "line" > < a name = "l02008" > < / a > < span class = "lineno" > 2008< / span >   < / div >
< div class = "line" > < a name = "l02009" > < / a > < span class = "lineno" > 2009< / span >   < span class = "comment" > // Note that this will be empty if there were no deleted rows.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02010" > < / a > < span class = "lineno" > 2010< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = is_unbounded_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02011" > < / a > < span class = "lineno" > 2011< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l02012" > < / a > < span class = "lineno" > 2012< / span >   < span class = "keywordflow" > if< / span > (!is_unbounded_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02013" > < / a > < span class = "lineno" > 2013< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > primal_value_shift = 0.0;< / div >
< div class = "line" > < a name = "l02014" > < / a > < span class = "lineno" > 2014< / span >   RowIndex row_at_bound = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02015" > < / a > < span class = "lineno" > 2015< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : deleted_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02016" > < / a > < span class = "lineno" > 2016< / span >   < span class = "keyword" > const< / span > RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = e.row();< / div >
< div class = "line" > < a name = "l02017" > < / a > < span class = "lineno" > 2017< / span >   < span class = "comment" > // The second condition is for VariableStatus::FREE rows.< / span > < / div >
< div class = "line" > < a name = "l02018" > < / a > < span class = "lineno" > 2018< / span >   < span class = "comment" > // TODO(user): In presense of free row, we must move them to 0.< / span > < / div >
< div class = "line" > < a name = "l02019" > < / a > < span class = "lineno" > 2019< / span >   < span class = "comment" > // Note that currently VariableStatus::FREE rows should be removed before< / span > < / div >
< div class = "line" > < a name = "l02020" > < / a > < span class = "lineno" > 2020< / span >   < span class = "comment" > // this is called.< / span > < / div >
< div class = "line" > < a name = "l02021" > < / a > < span class = "lineno" > 2021< / span >   DCHECK(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (rhs_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]));< / div >
< div class = "line" > < a name = "l02022" > < / a > < span class = "lineno" > 2022< / span >   < span class = "keywordflow" > if< / span > (last_deleted_column[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] != < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > || !< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (rhs_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ])) < span class = "keywordflow" > continue< / span > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02023" > < / a > < span class = "lineno" > 2023< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_column.html" > SparseColumn< / a > & row_as_column =< / div >
< div class = "line" > < a name = "l02024" > < / a > < span class = "lineno" > 2024< / span >   deleted_rows_as_column_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ));< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02025" > < / a > < span class = "lineno" > 2025< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > activity =< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02026" > < / a > < span class = "lineno" > 2026< / span >   rhs_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] - < a class = "code" href = "namespaceoperations__research_1_1glop.html#a3d9874910f9632900fe8677463b1c0be" > ScalarProduct< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > , row_as_column);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02027" > < / a > < span class = "lineno" > 2027< / span >   < / div >
< div class = "line" > < a name = "l02028" > < / a > < span class = "lineno" > 2028< / span >   < span class = "comment" > // activity and sign correction must have the same sign or be zero. If< / span > < / div >
< div class = "line" > < a name = "l02029" > < / a > < span class = "lineno" > 2029< / span >   < span class = "comment" > // not, we find the first unbounded variable and change it accordingly.< / span > < / div >
< div class = "line" > < a name = "l02030" > < / a > < span class = "lineno" > 2030< / span >   < span class = "comment" > // Note that by construction, the variable value will move towards its< / span > < / div >
< div class = "line" > < a name = "l02031" > < / a > < span class = "lineno" > 2031< / span >   < span class = "comment" > // unbounded direction.< / span > < / div >
< div class = "line" > < a name = "l02032" > < / a > < span class = "lineno" > 2032< / span >   < span class = "keywordflow" > if< / span > (activity * activity_sign_correction_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] < 0.0) {< / div >
< div class = "line" > < a name = "l02033" > < / a > < span class = "lineno" > 2033< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8" > bound< / a > = activity / e.coefficient();< / div >
< div class = "line" > < a name = "l02034" > < / a > < span class = "lineno" > 2034< / span >   < span class = "keywordflow" > if< / span > (std::abs(< a class = "code" href = "routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8" > bound< / a > ) > std::abs(primal_value_shift)) {< / div >
< div class = "line" > < a name = "l02035" > < / a > < span class = "lineno" > 2035< / span >   primal_value_shift = < a class = "code" href = "routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8" > bound< / a > ;< / div >
< div class = "line" > < a name = "l02036" > < / a > < span class = "lineno" > 2036< / span >   row_at_bound = < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ;< / div >
< div class = "line" > < a name = "l02037" > < / a > < span class = "lineno" > 2037< / span >   }< / div >
< div class = "line" > < a name = "l02038" > < / a > < span class = "lineno" > 2038< / span >   }< / div >
< div class = "line" > < a name = "l02039" > < / a > < span class = "lineno" > 2039< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02040" > < / a > < span class = "lineno" > 2040< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] += primal_value_shift;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02041" > < / a > < span class = "lineno" > 2041< / span >   < span class = "keywordflow" > if< / span > (row_at_bound != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > kInvalidRow< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02042" > < / a > < span class = "lineno" > 2042< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
< div class = "line" > < a name = "l02043" > < / a > < span class = "lineno" > 2043< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [row_at_bound] =< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02044" > < / a > < span class = "lineno" > 2044< / span >   activity_sign_correction_[row_at_bound] == 1.0< / div >
< div class = "line" > < a name = "l02045" > < / a > < span class = "lineno" > 2045< / span >   ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > < / div >
< div class = "line" > < a name = "l02046" > < / a > < span class = "lineno" > 2046< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02047" > < / a > < span class = "lineno" > 2047< / span >   }< / div >
< div class = "line" > < a name = "l02048" > < / a > < span class = "lineno" > 2048< / span >   }< / div >
< div class = "line" > < a name = "l02049" > < / a > < span class = "lineno" > 2049< / span >   }< / div >
< div class = "line" > < a name = "l02050" > < / a > < span class = "lineno" > 2050< / span >   < / div >
< div class = "line" > < a name = "l02051" > < / a > < span class = "lineno" > 2051< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l02052" > < / a > < span class = "lineno" > 2052< / span >   < span class = "comment" > // FreeConstraintPreprocessor< / span > < / div >
< div class = "line" > < a name = "l02053" > < / a > < span class = "lineno" > 2053< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l02054" > < / a > < span class = "lineno" > 2054< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02055" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_free_constraint_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 2055< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_free_constraint_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > FreeConstraintPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l02056" > < / a > < span class = "lineno" > 2056< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02057" > < / a > < span class = "lineno" > 2057< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02058" > < / a > < span class = "lineno" > 2058< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02059" > < / a > < span class = "lineno" > 2059< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02060" > < / a > < span class = "lineno" > 2060< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l02061" > < / a > < span class = "lineno" > 2061< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02062" > < / a > < span class = "lineno" > 2062< / span >   < span class = "keywordflow" > if< / span > (lower_bound == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > & & upper_bound == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02063" > < / a > < span class = "lineno" > 2063< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2087c8376c03c247099a989f2990e6e8" > MarkRowForDeletion< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02064" > < / a > < span class = "lineno" > 2064< / span >   }< / div >
< div class = "line" > < a name = "l02065" > < / a > < span class = "lineno" > 2065< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02066" > < / a > < span class = "lineno" > 2066< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac220cc5563c65b821d9d043010bb2121" > DeleteRows< / a > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a4dda252e2b65e3aa074c002daf6f86b8" > GetMarkedRows< / a > ());< / div >
< div class = "line" > < a name = "l02067" > < / a > < span class = "lineno" > 2067< / span >   < span class = "keywordflow" > return< / span > !row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02068" > < / a > < span class = "lineno" > 2068< / span >   }< / div >
< div class = "line" > < a name = "l02069" > < / a > < span class = "lineno" > 2069< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02070" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_free_constraint_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 2070< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_free_constraint_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > FreeConstraintPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l02071" > < / a > < span class = "lineno" > 2071< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l02072" > < / a > < span class = "lineno" > 2072< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02073" > < / a > < span class = "lineno" > 2073< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02074" > < / a > < span class = "lineno" > 2074< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a43e3b399f53b38b75171071c9d730c5b" > RestoreDeletedRows< / a > (solution);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02075" > < / a > < span class = "lineno" > 2075< / span >   }< / div >
< div class = "line" > < a name = "l02076" > < / a > < span class = "lineno" > 2076< / span >   < / div >
< div class = "line" > < a name = "l02077" > < / a > < span class = "lineno" > 2077< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l02078" > < / a > < span class = "lineno" > 2078< / span >   < span class = "comment" > // EmptyConstraintPreprocessor< / span > < / div >
< div class = "line" > < a name = "l02079" > < / a > < span class = "lineno" > 2079< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l02080" > < / a > < span class = "lineno" > 2080< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02081" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_empty_constraint_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 2081< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_empty_constraint_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > EmptyConstraintPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l02082" > < / a > < span class = "lineno" > 2082< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02083" > < / a > < span class = "lineno" > 2083< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02084" > < / a > < span class = "lineno" > 2084< / span >   < span class = "keyword" > const< / span > RowIndex num_rows(lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ());< / div >
< div class = "line" > < a name = "l02085" > < / a > < span class = "lineno" > 2085< / span >   < span class = "keyword" > const< / span > ColIndex num_cols(lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ());< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02086" > < / a > < span class = "lineno" > 2086< / span >   < / div >
< div class = "line" > < a name = "l02087" > < / a > < span class = "lineno" > 2087< / span >   < span class = "comment" > // Compute degree.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02088" > < / a > < span class = "lineno" > 2088< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > StrictITIVector< RowIndex, int> < / a > degree(num_rows, 0);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02089" > < / a > < span class = "lineno" > 2089< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02090" > < / a > < span class = "lineno" > 2090< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02091" > < / a > < span class = "lineno" > 2091< / span >   ++degree[e.row()];< / div >
< div class = "line" > < a name = "l02092" > < / a > < span class = "lineno" > 2092< / span >   }< / div >
< div class = "line" > < a name = "l02093" > < / a > < span class = "lineno" > 2093< / span >   }< / div >
< div class = "line" > < a name = "l02094" > < / a > < span class = "lineno" > 2094< / span >   < / div >
< div class = "line" > < a name = "l02095" > < / a > < span class = "lineno" > 2095< / span >   < span class = "comment" > // Delete degree 0 rows.< / span > < / div >
< div class = "line" > < a name = "l02096" > < / a > < span class = "lineno" > 2096< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l02097" > < / a > < span class = "lineno" > 2097< / span >   < span class = "keywordflow" > if< / span > (degree[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == 0) {< / div >
< div class = "line" > < a name = "l02098" > < / a > < span class = "lineno" > 2098< / span >   < span class = "comment" > // We need to check that 0.0 is allowed by the constraint bounds,< / span > < / div >
< div class = "line" > < a name = "l02099" > < / a > < span class = "lineno" > 2099< / span >   < span class = "comment" > // otherwise, the problem is ProblemStatus::PRIMAL_INFEASIBLE.< / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02100" > < / a > < span class = "lineno" > 2100< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (< / div >
< div class = "line" > < a name = "l02101" > < / a > < span class = "lineno" > 2101< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ], 0) ||< / div >
< div class = "line" > < a name = "l02102" > < / a > < span class = "lineno" > 2102< / span >   !< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (< / div >
< div class = "line" > < a name = "l02103" > < / a > < span class = "lineno" > 2103< / span >   0, lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ])) {< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02104" > < / a > < span class = "lineno" > 2104< / span >   VLOG(1) < < < span class = "stringliteral" > " Problem PRIMAL_INFEASIBLE, constraint " < / span > < < < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < / div >
< div class = "line" > < a name = "l02105" > < / a > < span class = "lineno" > 2105< / span >   < < < span class = "stringliteral" > " is empty and its range [" < / span > < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02106" > < / a > < span class = "lineno" > 2106< / span >   < < lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] < < < span class = "stringliteral" > " ," < / span > < / div >
< div class = "line" > < a name = "l02107" > < / a > < span class = "lineno" > 2107< / span >   < < lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] < < < span class = "stringliteral" > " ] doesn' t contain 0." < / span > ;< / div >
< div class = "line" > < a name = "l02108" > < / a > < span class = "lineno" > 2108< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::PRIMAL_INFEASIBLE;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02109" > < / a > < span class = "lineno" > 2109< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02110" > < / a > < span class = "lineno" > 2110< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02111" > < / a > < span class = "lineno" > 2111< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2087c8376c03c247099a989f2990e6e8" > MarkRowForDeletion< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02112" > < / a > < span class = "lineno" > 2112< / span >   }< / div >
< div class = "line" > < a name = "l02113" > < / a > < span class = "lineno" > 2113< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02114" > < / a > < span class = "lineno" > 2114< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac220cc5563c65b821d9d043010bb2121" > DeleteRows< / a > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a4dda252e2b65e3aa074c002daf6f86b8" > GetMarkedRows< / a > ());< / div >
< div class = "line" > < a name = "l02115" > < / a > < span class = "lineno" > 2115< / span >   < span class = "keywordflow" > return< / span > !row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02116" > < / a > < span class = "lineno" > 2116< / span >   }< / div >
< div class = "line" > < a name = "l02117" > < / a > < span class = "lineno" > 2117< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02118" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_empty_constraint_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 2118< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_empty_constraint_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > EmptyConstraintPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l02119" > < / a > < span class = "lineno" > 2119< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l02120" > < / a > < span class = "lineno" > 2120< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02121" > < / a > < span class = "lineno" > 2121< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02122" > < / a > < span class = "lineno" > 2122< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a43e3b399f53b38b75171071c9d730c5b" > RestoreDeletedRows< / a > (solution);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02123" > < / a > < span class = "lineno" > 2123< / span >   }< / div >
< div class = "line" > < a name = "l02124" > < / a > < span class = "lineno" > 2124< / span >   < / div >
< div class = "line" > < a name = "l02125" > < / a > < span class = "lineno" > 2125< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l02126" > < / a > < span class = "lineno" > 2126< / span >   < span class = "comment" > // SingletonPreprocessor< / span > < / div >
< div class = "line" > < a name = "l02127" > < / a > < span class = "lineno" > 2127< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l02128" > < / a > < span class = "lineno" > 2128< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02129" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a91238ea5ce3d56a927b2fa4b68b3e9aa" > 2129< / a > < / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a91238ea5ce3d56a927b2fa4b68b3e9aa" > SingletonUndo::SingletonUndo< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047" > OperationType< / a > type, < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > & lp,< / div >
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< div class = "line" > < a name = "l02130" > < / a > < span class = "lineno" > 2130< / span >   MatrixEntry e, < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9" > ConstraintStatus< / a > status)< / div >
< div class = "line" > < a name = "l02131" > < / a > < span class = "lineno" > 2131< / span >   : type_(type),< / div >
< div class = "line" > < a name = "l02132" > < / a > < span class = "lineno" > 2132< / span >   is_maximization_(lp.IsMaximizationProblem()),< / div >
< div class = "line" > < a name = "l02133" > < / a > < span class = "lineno" > 2133< / span >   e_(e),< / div >
< div class = "line" > < a name = "l02134" > < / a > < span class = "lineno" > 2134< / span >   cost_(lp.objective_coefficients()[e.< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]),< / div >
< div class = "line" > < a name = "l02135" > < / a > < span class = "lineno" > 2135< / span >   variable_lower_bound_(lp.variable_lower_bounds()[e.< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]),< / div >
< div class = "line" > < a name = "l02136" > < / a > < span class = "lineno" > 2136< / span >   variable_upper_bound_(lp.variable_upper_bounds()[e.< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]),< / div >
< div class = "line" > < a name = "l02137" > < / a > < span class = "lineno" > 2137< / span >   constraint_lower_bound_(lp.constraint_lower_bounds()[e.< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]),< / div >
< div class = "line" > < a name = "l02138" > < / a > < span class = "lineno" > 2138< / span >   constraint_upper_bound_(lp.constraint_upper_bounds()[e.< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]),< / div >
< div class = "line" > < a name = "l02139" > < / a > < span class = "lineno" > 2139< / span >   constraint_status_(status) {}< / div >
< div class = "line" > < a name = "l02140" > < / a > < span class = "lineno" > 2140< / span >   < / div >
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< div class = "line" > < a name = "l02141" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#ab55c02f6db7b2044d8a1093ebd3dbf2f" > 2141< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#ab55c02f6db7b2044d8a1093ebd3dbf2f" > SingletonUndo::Undo< / a > (< span class = "keyword" > const< / span > GlopParameters& < a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > ,< / div >
< div class = "line" > < a name = "l02142" > < / a > < span class = "lineno" > 2142< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > SparseMatrix< / a > & deleted_columns,< / div >
< div class = "line" > < a name = "l02143" > < / a > < span class = "lineno" > 2143< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > SparseMatrix< / a > & deleted_rows,< / div >
< div class = "line" > < a name = "l02144" > < / a > < span class = "lineno" > 2144< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
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< div class = "line" > < a name = "l02145" > < / a > < span class = "lineno" > 2145< / span >   < span class = "keywordflow" > switch< / span > (type_) {< / div >
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< div class = "line" > < a name = "l02146" > < / a > < span class = "lineno" > 2146< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a003bca6275374734c52d66fb1a9ea10c" > SINGLETON_ROW< / a > :< / div >
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< div class = "line" > < a name = "l02147" > < / a > < span class = "lineno" > 2147< / span >   SingletonRowUndo(deleted_columns, solution);< / div >
< div class = "line" > < a name = "l02148" > < / a > < span class = "lineno" > 2148< / span >   < span class = "keywordflow" > break< / span > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02149" > < / a > < span class = "lineno" > 2149< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a25c2ad27a05323ecadd63096cde29538" > ZERO_COST_SINGLETON_COLUMN< / a > :< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02150" > < / a > < span class = "lineno" > 2150< / span >   ZeroCostSingletonColumnUndo(< a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > , deleted_rows, solution);< / div >
< div class = "line" > < a name = "l02151" > < / a > < span class = "lineno" > 2151< / span >   < span class = "keywordflow" > break< / span > ;< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02152" > < / a > < span class = "lineno" > 2152< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a723392e031e932ce6773d9ba469ccfa9" > SINGLETON_COLUMN_IN_EQUALITY< / a > :< / div >
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< div class = "line" > < a name = "l02153" > < / a > < span class = "lineno" > 2153< / span >   SingletonColumnInEqualityUndo(< a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > , deleted_rows, solution);< / div >
< div class = "line" > < a name = "l02154" > < / a > < span class = "lineno" > 2154< / span >   < span class = "keywordflow" > break< / span > ;< / div >
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< div class = "line" > < a name = "l02155" > < / a > < span class = "lineno" > 2155< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a629106ec8d53390d18c3f330156486ec" > MAKE_CONSTRAINT_AN_EQUALITY< / a > :< / div >
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< div class = "line" > < a name = "l02156" > < / a > < span class = "lineno" > 2156< / span >   MakeConstraintAnEqualityUndo(solution);< / div >
< div class = "line" > < a name = "l02157" > < / a > < span class = "lineno" > 2157< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l02158" > < / a > < span class = "lineno" > 2158< / span >   }< / div >
< div class = "line" > < a name = "l02159" > < / a > < span class = "lineno" > 2159< / span >   }< / div >
< div class = "line" > < a name = "l02160" > < / a > < span class = "lineno" > 2160< / span >   < / div >
< div class = "line" > < a name = "l02161" > < / a > < span class = "lineno" > 2161< / span >   < span class = "keywordtype" > void< / span > SingletonPreprocessor::DeleteSingletonRow(MatrixEntry e,< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02162" > < / a > < span class = "lineno" > 2162< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
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< div class = "line" > < a name = "l02163" > < / a > < span class = "lineno" > 2163< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > implied_lower_bound =< / div >
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< div class = "line" > < a name = "l02164" > < / a > < span class = "lineno" > 2164< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[e.row] / e.coeff;< / div >
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< div class = "line" > < a name = "l02165" > < / a > < span class = "lineno" > 2165< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > implied_upper_bound =< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02166" > < / a > < span class = "lineno" > 2166< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[e.row] / e.coeff;< / div >
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< div class = "line" > < a name = "l02167" > < / a > < span class = "lineno" > 2167< / span >   < span class = "keywordflow" > if< / span > (e.coeff < 0.0) {< / div >
< div class = "line" > < a name = "l02168" > < / a > < span class = "lineno" > 2168< / span >   std::swap(implied_lower_bound, implied_upper_bound);< / div >
< div class = "line" > < a name = "l02169" > < / a > < span class = "lineno" > 2169< / span >   }< / div >
< div class = "line" > < a name = "l02170" > < / a > < span class = "lineno" > 2170< / span >   < / div >
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< div class = "line" > < a name = "l02171" > < / a > < span class = "lineno" > 2171< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > old_lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[e.col];< / div >
< div class = "line" > < a name = "l02172" > < / a > < span class = "lineno" > 2172< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > old_upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[e.col];< / div >
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< div class = "line" > < a name = "l02173" > < / a > < span class = "lineno" > 2173< / span >   < / div >
< div class = "line" > < a name = "l02174" > < / a > < span class = "lineno" > 2174< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > potential_error =< / div >
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< div class = "line" > < a name = "l02175" > < / a > < span class = "lineno" > 2175< / span >   std::abs(< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .preprocessor_zero_tolerance() / e.coeff);< / div >
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< div class = "line" > < a name = "l02176" > < / a > < span class = "lineno" > 2176< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_lower_bound =< / div >
< div class = "line" > < a name = "l02177" > < / a > < span class = "lineno" > 2177< / span >   implied_lower_bound - potential_error > old_lower_bound< / div >
< div class = "line" > < a name = "l02178" > < / a > < span class = "lineno" > 2178< / span >   ? implied_lower_bound< / div >
< div class = "line" > < a name = "l02179" > < / a > < span class = "lineno" > 2179< / span >   : old_lower_bound;< / div >
< div class = "line" > < a name = "l02180" > < / a > < span class = "lineno" > 2180< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_upper_bound =< / div >
< div class = "line" > < a name = "l02181" > < / a > < span class = "lineno" > 2181< / span >   implied_upper_bound + potential_error < old_upper_bound< / div >
< div class = "line" > < a name = "l02182" > < / a > < span class = "lineno" > 2182< / span >   ? implied_upper_bound< / div >
< div class = "line" > < a name = "l02183" > < / a > < span class = "lineno" > 2183< / span >   : old_upper_bound;< / div >
< div class = "line" > < a name = "l02184" > < / a > < span class = "lineno" > 2184< / span >   < / div >
< div class = "line" > < a name = "l02185" > < / a > < span class = "lineno" > 2185< / span >   < span class = "keywordflow" > if< / span > (new_upper_bound < new_lower_bound) {< / div >
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< div class = "line" > < a name = "l02186" > < / a > < span class = "lineno" > 2186< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > IsSmallerWithinFeasibilityTolerance< / a > (new_lower_bound,< / div >
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< div class = "line" > < a name = "l02187" > < / a > < span class = "lineno" > 2187< / span >   new_upper_bound)) {< / div >
< div class = "line" > < a name = "l02188" > < / a > < span class = "lineno" > 2188< / span >   VLOG(1) < < < span class = "stringliteral" > " Problem ProblemStatus::INFEASIBLE_OR_UNBOUNDED, singleton " < / span > < / div >
< div class = "line" > < a name = "l02189" > < / a > < span class = "lineno" > 2189< / span >   < span class = "stringliteral" > " row causes the bound of the variable " < / span > < / div >
< div class = "line" > < a name = "l02190" > < / a > < span class = "lineno" > 2190< / span >   < < e.col < < < span class = "stringliteral" > " to be infeasible by " < / span > < / div >
< div class = "line" > < a name = "l02191" > < / a > < span class = "lineno" > 2191< / span >   < < new_lower_bound - new_upper_bound;< / div >
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< div class = "line" > < a name = "l02192" > < / a > < span class = "lineno" > 2192< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::PRIMAL_INFEASIBLE;< / div >
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< div class = "line" > < a name = "l02193" > < / a > < span class = "lineno" > 2193< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02194" > < / a > < span class = "lineno" > 2194< / span >   }< / div >
< div class = "line" > < a name = "l02195" > < / a > < span class = "lineno" > 2195< / span >   < span class = "comment" > // Otherwise, fix the variable to one of its bounds.< / span > < / div >
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< div class = "line" > < a name = "l02196" > < / a > < span class = "lineno" > 2196< / span >   < span class = "keywordflow" > if< / span > (new_lower_bound == lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[e.col]) {< / div >
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< div class = "line" > < a name = "l02197" > < / a > < span class = "lineno" > 2197< / span >   new_upper_bound = new_lower_bound;< / div >
< div class = "line" > < a name = "l02198" > < / a > < span class = "lineno" > 2198< / span >   }< / div >
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< div class = "line" > < a name = "l02199" > < / a > < span class = "lineno" > 2199< / span >   < span class = "keywordflow" > if< / span > (new_upper_bound == lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[e.col]) {< / div >
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< div class = "line" > < a name = "l02200" > < / a > < span class = "lineno" > 2200< / span >   new_lower_bound = new_upper_bound;< / div >
< div class = "line" > < a name = "l02201" > < / a > < span class = "lineno" > 2201< / span >   }< / div >
< div class = "line" > < a name = "l02202" > < / a > < span class = "lineno" > 2202< / span >   DCHECK_EQ(new_lower_bound, new_upper_bound);< / div >
< div class = "line" > < a name = "l02203" > < / a > < span class = "lineno" > 2203< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02204" > < / a > < span class = "lineno" > 2204< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2087c8376c03c247099a989f2990e6e8" > MarkRowForDeletion< / a > (e.row);< / div >
< div class = "line" > < a name = "l02205" > < / a > < span class = "lineno" > 2205< / span >   undo_stack_.push_back(SingletonUndo(< a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a003bca6275374734c52d66fb1a9ea10c" > SingletonUndo::SINGLETON_ROW< / a > , *lp, e,< / div >
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< div class = "line" > < a name = "l02206" > < / a > < span class = "lineno" > 2206< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a88c189a42c87aa49d667fc8ab76bc323" > ConstraintStatus::FREE< / a > ));< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02207" > < / a > < span class = "lineno" > 2207< / span >   < span class = "keywordflow" > if< / span > (deleted_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (e.col).< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ()) {< / div >
< div class = "line" > < a name = "l02208" > < / a > < span class = "lineno" > 2208< / span >   deleted_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a1e9f788d4507f2461b4f775755aaf82e" > mutable_column< / a > (e.col)-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af3346e19f245a59be830e9558002d2d4" > PopulateFromSparseVector< / a > (< / div >
< div class = "line" > < a name = "l02209" > < / a > < span class = "lineno" > 2209< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (e.col));< / div >
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< div class = "line" > < a name = "l02210" > < / a > < span class = "lineno" > 2210< / span >   }< / div >
< div class = "line" > < a name = "l02211" > < / a > < span class = "lineno" > 2211< / span >   < / div >
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< div class = "line" > < a name = "l02212" > < / a > < span class = "lineno" > 2212< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093" > SetVariableBounds< / a > (e.col, new_lower_bound, new_upper_bound);< / div >
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< div class = "line" > < a name = "l02213" > < / a > < span class = "lineno" > 2213< / span >   }< / div >
< div class = "line" > < a name = "l02214" > < / a > < span class = "lineno" > 2214< / span >   < / div >
< div class = "line" > < a name = "l02215" > < / a > < span class = "lineno" > 2215< / span >   < span class = "comment" > // The dual value of the row needs to be corrected to stay at the optimal.< / span > < / div >
< div class = "line" > < a name = "l02216" > < / a > < span class = "lineno" > 2216< / span >   < span class = "keywordtype" > void< / span > SingletonUndo::SingletonRowUndo(< span class = "keyword" > const< / span > SparseMatrix& deleted_columns,< / div >
< div class = "line" > < a name = "l02217" > < / a > < span class = "lineno" > 2217< / span >   ProblemSolution* solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l02218" > < / a > < span class = "lineno" > 2218< / span >   DCHECK_EQ(0, solution-> dual_values[e_.row]);< / div >
< div class = "line" > < a name = "l02219" > < / a > < span class = "lineno" > 2219< / span >   < / div >
< div class = "line" > < a name = "l02220" > < / a > < span class = "lineno" > 2220< / span >   < span class = "comment" > // If the variable is basic or free, we can just keep the constraint< / span > < / div >
< div class = "line" > < a name = "l02221" > < / a > < span class = "lineno" > 2221< / span >   < span class = "comment" > // VariableStatus::BASIC and< / span > < / div >
< div class = "line" > < a name = "l02222" > < / a > < span class = "lineno" > 2222< / span >   < span class = "comment" > // 0.0 as the dual value.< / span > < / div >
< div class = "line" > < a name = "l02223" > < / a > < span class = "lineno" > 2223< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > status = solution-> variable_statuses[e_.col];< / div >
< div class = "line" > < a name = "l02224" > < / a > < span class = "lineno" > 2224< / span >   < span class = "keywordflow" > if< / span > (status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > || status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > ) < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02225" > < / a > < span class = "lineno" > 2225< / span >   < / div >
< div class = "line" > < a name = "l02226" > < / a > < span class = "lineno" > 2226< / span >   < span class = "comment" > // Compute whether or not the variable bounds changed.< / span > < / div >
< div class = "line" > < a name = "l02227" > < / a > < span class = "lineno" > 2227< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > implied_lower_bound = constraint_lower_bound_ / e_.coeff;< / div >
< div class = "line" > < a name = "l02228" > < / a > < span class = "lineno" > 2228< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > implied_upper_bound = constraint_upper_bound_ / e_.coeff;< / div >
< div class = "line" > < a name = "l02229" > < / a > < span class = "lineno" > 2229< / span >   < span class = "keywordflow" > if< / span > (e_.coeff < 0.0) {< / div >
< div class = "line" > < a name = "l02230" > < / a > < span class = "lineno" > 2230< / span >   std::swap(implied_lower_bound, implied_upper_bound);< / div >
< div class = "line" > < a name = "l02231" > < / a > < span class = "lineno" > 2231< / span >   }< / div >
< div class = "line" > < a name = "l02232" > < / a > < span class = "lineno" > 2232< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > lower_bound_changed = implied_lower_bound > variable_lower_bound_;< / div >
< div class = "line" > < a name = "l02233" > < / a > < span class = "lineno" > 2233< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > bool< / span > upper_bound_changed = implied_upper_bound < variable_upper_bound_;< / div >
< div class = "line" > < a name = "l02234" > < / a > < span class = "lineno" > 2234< / span >   < / div >
< div class = "line" > < a name = "l02235" > < / a > < span class = "lineno" > 2235< / span >   < span class = "keywordflow" > if< / span > (!lower_bound_changed & & !upper_bound_changed) < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02236" > < / a > < span class = "lineno" > 2236< / span >   < span class = "keywordflow" > if< / span > (status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > & & !lower_bound_changed) < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02237" > < / a > < span class = "lineno" > 2237< / span >   < span class = "keywordflow" > if< / span > (status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > & & !upper_bound_changed) < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02238" > < / a > < span class = "lineno" > 2238< / span >   < / div >
< div class = "line" > < a name = "l02239" > < / a > < span class = "lineno" > 2239< / span >   < span class = "comment" > // This is the reduced cost of the variable before the singleton constraint is< / span > < / div >
< div class = "line" > < a name = "l02240" > < / a > < span class = "lineno" > 2240< / span >   < span class = "comment" > // added back.< / span > < / div >
< div class = "line" > < a name = "l02241" > < / a > < span class = "lineno" > 2241< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > reduced_cost =< / div >
< div class = "line" > < a name = "l02242" > < / a > < span class = "lineno" > 2242< / span >   cost_ -< / div >
< div class = "line" > < a name = "l02243" > < / a > < span class = "lineno" > 2243< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a3d9874910f9632900fe8677463b1c0be" > ScalarProduct< / a > (solution-> dual_values, deleted_columns.column(e_.col));< / div >
< div class = "line" > < a name = "l02244" > < / a > < span class = "lineno" > 2244< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > reduced_cost_for_minimization =< / div >
< div class = "line" > < a name = "l02245" > < / a > < span class = "lineno" > 2245< / span >   is_maximization_ ? -reduced_cost : reduced_cost;< / div >
< div class = "line" > < a name = "l02246" > < / a > < span class = "lineno" > 2246< / span >   < / div >
< div class = "line" > < a name = "l02247" > < / a > < span class = "lineno" > 2247< / span >   < span class = "keywordflow" > if< / span > (status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > ) {< / div >
< div class = "line" > < a name = "l02248" > < / a > < span class = "lineno" > 2248< / span >   DCHECK(lower_bound_changed || upper_bound_changed);< / div >
< div class = "line" > < a name = "l02249" > < / a > < span class = "lineno" > 2249< / span >   < span class = "keywordflow" > if< / span > (reduced_cost_for_minimization > = 0.0 & & !lower_bound_changed) {< / div >
< div class = "line" > < a name = "l02250" > < / a > < span class = "lineno" > 2250< / span >   solution-> variable_statuses[e_.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02251" > < / a > < span class = "lineno" > 2251< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02252" > < / a > < span class = "lineno" > 2252< / span >   }< / div >
< div class = "line" > < a name = "l02253" > < / a > < span class = "lineno" > 2253< / span >   < span class = "keywordflow" > if< / span > (reduced_cost_for_minimization < = 0.0 & & !upper_bound_changed) {< / div >
< div class = "line" > < a name = "l02254" > < / a > < span class = "lineno" > 2254< / span >   solution-> variable_statuses[e_.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02255" > < / a > < span class = "lineno" > 2255< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02256" > < / a > < span class = "lineno" > 2256< / span >   }< / div >
< div class = "line" > < a name = "l02257" > < / a > < span class = "lineno" > 2257< / span >   }< / div >
< div class = "line" > < a name = "l02258" > < / a > < span class = "lineno" > 2258< / span >   < / div >
< div class = "line" > < a name = "l02259" > < / a > < span class = "lineno" > 2259< / span >   < span class = "comment" > // If one of the variable bounds changes, and the variable is no longer at one< / span > < / div >
< div class = "line" > < a name = "l02260" > < / a > < span class = "lineno" > 2260< / span >   < span class = "comment" > // of its bounds, then its reduced cost needs to be set to 0.0 and the< / span > < / div >
< div class = "line" > < a name = "l02261" > < / a > < span class = "lineno" > 2261< / span >   < span class = "comment" > // variable becomes a basic variable. This is what the line below do, since< / span > < / div >
< div class = "line" > < a name = "l02262" > < / a > < span class = "lineno" > 2262< / span >   < span class = "comment" > // the new reduced cost of the variable will be equal to:< / span > < / div >
< div class = "line" > < a name = "l02263" > < / a > < span class = "lineno" > 2263< / span >   < span class = "comment" > // old_reduced_cost - coeff * solution-> dual_values[row]< / span > < / div >
< div class = "line" > < a name = "l02264" > < / a > < span class = "lineno" > 2264< / span >   solution-> dual_values[e_.row] = reduced_cost / e_.coeff;< / div >
< div class = "line" > < a name = "l02265" > < / a > < span class = "lineno" > 2265< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9" > ConstraintStatus< / a > new_constraint_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab7a106449441d3fd61aa70916a147a7d" > VariableToConstraintStatus< / a > (status);< / div >
< div class = "line" > < a name = "l02266" > < / a > < span class = "lineno" > 2266< / span >   < span class = "keywordflow" > if< / span > (status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > & & < / div >
< div class = "line" > < a name = "l02267" > < / a > < span class = "lineno" > 2267< / span >   (!lower_bound_changed || !upper_bound_changed)) {< / div >
< div class = "line" > < a name = "l02268" > < / a > < span class = "lineno" > 2268< / span >   new_constraint_status = lower_bound_changed< / div >
< div class = "line" > < a name = "l02269" > < / a > < span class = "lineno" > 2269< / span >   ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > < / div >
< div class = "line" > < a name = "l02270" > < / a > < span class = "lineno" > 2270< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02271" > < / a > < span class = "lineno" > 2271< / span >   }< / div >
< div class = "line" > < a name = "l02272" > < / a > < span class = "lineno" > 2272< / span >   < span class = "keywordflow" > if< / span > (e_.coeff < 0.0) {< / div >
< div class = "line" > < a name = "l02273" > < / a > < span class = "lineno" > 2273< / span >   < span class = "keywordflow" > if< / span > (new_constraint_status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l02274" > < / a > < span class = "lineno" > 2274< / span >   new_constraint_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02275" > < / a > < span class = "lineno" > 2275< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (new_constraint_status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l02276" > < / a > < span class = "lineno" > 2276< / span >   new_constraint_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02277" > < / a > < span class = "lineno" > 2277< / span >   }< / div >
< div class = "line" > < a name = "l02278" > < / a > < span class = "lineno" > 2278< / span >   }< / div >
< div class = "line" > < a name = "l02279" > < / a > < span class = "lineno" > 2279< / span >   solution-> variable_statuses[e_.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
< div class = "line" > < a name = "l02280" > < / a > < span class = "lineno" > 2280< / span >   solution-> constraint_statuses[e_.row] = new_constraint_status;< / div >
< div class = "line" > < a name = "l02281" > < / a > < span class = "lineno" > 2281< / span >   }< / div >
< div class = "line" > < a name = "l02282" > < / a > < span class = "lineno" > 2282< / span >   < / div >
< div class = "line" > < a name = "l02283" > < / a > < span class = "lineno" > 2283< / span >   < span class = "keywordtype" > void< / span > SingletonPreprocessor::UpdateConstraintBoundsWithVariableBounds(< / div >
< div class = "line" > < a name = "l02284" > < / a > < span class = "lineno" > 2284< / span >   MatrixEntry e, LinearProgram* lp) {< / div >
< div class = "line" > < a name = "l02285" > < / a > < span class = "lineno" > 2285< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_delta = -e.coeff * lp-> variable_upper_bounds()[e.col];< / div >
< div class = "line" > < a name = "l02286" > < / a > < span class = "lineno" > 2286< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_delta = -e.coeff * lp-> variable_lower_bounds()[e.col];< / div >
< div class = "line" > < a name = "l02287" > < / a > < span class = "lineno" > 2287< / span >   < span class = "keywordflow" > if< / span > (e.coeff < 0.0) {< / div >
< div class = "line" > < a name = "l02288" > < / a > < span class = "lineno" > 2288< / span >   std::swap(lower_delta, upper_delta);< / div >
< div class = "line" > < a name = "l02289" > < / a > < span class = "lineno" > 2289< / span >   }< / div >
< div class = "line" > < a name = "l02290" > < / a > < span class = "lineno" > 2290< / span >   lp-> SetConstraintBounds(e.row,< / div >
< div class = "line" > < a name = "l02291" > < / a > < span class = "lineno" > 2291< / span >   lp-> constraint_lower_bounds()[e.row] + lower_delta,< / div >
< div class = "line" > < a name = "l02292" > < / a > < span class = "lineno" > 2292< / span >   lp-> constraint_upper_bounds()[e.row] + upper_delta);< / div >
< div class = "line" > < a name = "l02293" > < / a > < span class = "lineno" > 2293< / span >   }< / div >
< div class = "line" > < a name = "l02294" > < / a > < span class = "lineno" > 2294< / span >   < / div >
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< div class = "line" > < a name = "l02295" > < / a > < span class = "lineno" > 2295< / span >   < span class = "keywordtype" > bool< / span > SingletonPreprocessor::IntegerSingletonColumnIsRemovable(< / div >
< div class = "line" > < a name = "l02296" > < / a > < span class = "lineno" > 2296< / span >   < span class = "keyword" > const< / span > MatrixEntry& matrix_entry, < span class = "keyword" > const< / span > LinearProgram& lp)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l02297" > < / a > < span class = "lineno" > 2297< / span >   DCHECK(< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a3ad0a2aeb2c7f12fb9d3439a480ffbde" > in_mip_context_< / a > );< / div >
< div class = "line" > < a name = "l02298" > < / a > < span class = "lineno" > 2298< / span >   DCHECK(lp.IsVariableInteger(matrix_entry.col));< / div >
< div class = "line" > < a name = "l02299" > < / a > < span class = "lineno" > 2299< / span >   < span class = "keyword" > const< / span > SparseMatrix& transpose = lp.GetTransposeSparseMatrix();< / div >
< div class = "line" > < a name = "l02300" > < / a > < span class = "lineno" > 2300< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > entry :< / div >
< div class = "line" > < a name = "l02301" > < / a > < span class = "lineno" > 2301< / span >   transpose.column(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (matrix_entry.row))) {< / div >
< div class = "line" > < a name = "l02302" > < / a > < span class = "lineno" > 2302< / span >   < span class = "comment" > // Check if the variable is integer.< / span > < / div >
< div class = "line" > < a name = "l02303" > < / a > < span class = "lineno" > 2303< / span >   < span class = "keywordflow" > if< / span > (!lp.IsVariableInteger(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (entry.row()))) {< / div >
< div class = "line" > < a name = "l02304" > < / a > < span class = "lineno" > 2304< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02305" > < / a > < span class = "lineno" > 2305< / span >   }< / div >
< div class = "line" > < a name = "l02306" > < / a > < span class = "lineno" > 2306< / span >   < / div >
< div class = "line" > < a name = "l02307" > < / a > < span class = "lineno" > 2307< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "routing__search_8cc.html#ab66ad179c8a6fcf1adb958cb51f4c7cb" > coefficient< / a > = entry.coefficient();< / div >
< div class = "line" > < a name = "l02308" > < / a > < span class = "lineno" > 2308< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > coefficient_ratio = < a class = "code" href = "routing__search_8cc.html#ab66ad179c8a6fcf1adb958cb51f4c7cb" > coefficient< / a > / matrix_entry.coeff;< / div >
< div class = "line" > < a name = "l02309" > < / a > < span class = "lineno" > 2309< / span >   < span class = "comment" > // Check if coefficient_ratio is integer.< / span > < / div >
< div class = "line" > < a name = "l02310" > < / a > < span class = "lineno" > 2310< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "namespaceoperations__research.html#a1181732aa2f4c08e28ea32b1c7c6f256" > IsIntegerWithinTolerance< / a > (< / div >
< div class = "line" > < a name = "l02311" > < / a > < span class = "lineno" > 2311< / span >   coefficient_ratio, < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .solution_feasibility_tolerance())) {< / div >
< div class = "line" > < a name = "l02312" > < / a > < span class = "lineno" > 2312< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02313" > < / a > < span class = "lineno" > 2313< / span >   }< / div >
< div class = "line" > < a name = "l02314" > < / a > < span class = "lineno" > 2314< / span >   }< / div >
< div class = "line" > < a name = "l02315" > < / a > < span class = "lineno" > 2315< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > constraint_lb =< / div >
< div class = "line" > < a name = "l02316" > < / a > < span class = "lineno" > 2316< / span >   lp.constraint_lower_bounds()[matrix_entry.row];< / div >
< div class = "line" > < a name = "l02317" > < / a > < span class = "lineno" > 2317< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (constraint_lb)) {< / div >
< div class = "line" > < a name = "l02318" > < / a > < span class = "lineno" > 2318< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound_ratio = constraint_lb / matrix_entry.coeff;< / div >
< div class = "line" > < a name = "l02319" > < / a > < span class = "lineno" > 2319< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "namespaceoperations__research.html#a1181732aa2f4c08e28ea32b1c7c6f256" > IsIntegerWithinTolerance< / a > (< / div >
< div class = "line" > < a name = "l02320" > < / a > < span class = "lineno" > 2320< / span >   lower_bound_ratio, < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .solution_feasibility_tolerance())) {< / div >
< div class = "line" > < a name = "l02321" > < / a > < span class = "lineno" > 2321< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02322" > < / a > < span class = "lineno" > 2322< / span >   }< / div >
< div class = "line" > < a name = "l02323" > < / a > < span class = "lineno" > 2323< / span >   }< / div >
< div class = "line" > < a name = "l02324" > < / a > < span class = "lineno" > 2324< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > constraint_ub =< / div >
< div class = "line" > < a name = "l02325" > < / a > < span class = "lineno" > 2325< / span >   lp.constraint_upper_bounds()[matrix_entry.row];< / div >
< div class = "line" > < a name = "l02326" > < / a > < span class = "lineno" > 2326< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (constraint_ub)) {< / div >
< div class = "line" > < a name = "l02327" > < / a > < span class = "lineno" > 2327< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound_ratio = constraint_ub / matrix_entry.coeff;< / div >
< div class = "line" > < a name = "l02328" > < / a > < span class = "lineno" > 2328< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "namespaceoperations__research.html#a1181732aa2f4c08e28ea32b1c7c6f256" > IsIntegerWithinTolerance< / a > (< / div >
< div class = "line" > < a name = "l02329" > < / a > < span class = "lineno" > 2329< / span >   upper_bound_ratio, < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .solution_feasibility_tolerance())) {< / div >
< div class = "line" > < a name = "l02330" > < / a > < span class = "lineno" > 2330< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02331" > < / a > < span class = "lineno" > 2331< / span >   }< / div >
< div class = "line" > < a name = "l02332" > < / a > < span class = "lineno" > 2332< / span >   }< / div >
< div class = "line" > < a name = "l02333" > < / a > < span class = "lineno" > 2333< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02334" > < / a > < span class = "lineno" > 2334< / span >   }< / div >
< div class = "line" > < a name = "l02335" > < / a > < span class = "lineno" > 2335< / span >   < / div >
< div class = "line" > < a name = "l02336" > < / a > < span class = "lineno" > 2336< / span >   < span class = "keywordtype" > void< / span > SingletonPreprocessor::DeleteZeroCostSingletonColumn(< / div >
< div class = "line" > < a name = "l02337" > < / a > < span class = "lineno" > 2337< / span >   < span class = "keyword" > const< / span > SparseMatrix& transpose, MatrixEntry e, LinearProgram* lp) {< / div >
< div class = "line" > < a name = "l02338" > < / a > < span class = "lineno" > 2338< / span >   < span class = "keyword" > const< / span > ColIndex transpose_col = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e.row);< / div >
< div class = "line" > < a name = "l02339" > < / a > < span class = "lineno" > 2339< / span >   < span class = "keyword" > const< / span > SparseColumn& column = transpose.column(transpose_col);< / div >
< div class = "line" > < a name = "l02340" > < / a > < span class = "lineno" > 2340< / span >   undo_stack_.push_back(SingletonUndo(< a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a25c2ad27a05323ecadd63096cde29538" > SingletonUndo::ZERO_COST_SINGLETON_COLUMN< / a > ,< / div >
< div class = "line" > < a name = "l02341" > < / a > < span class = "lineno" > 2341< / span >   *lp, e, < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a88c189a42c87aa49d667fc8ab76bc323" > ConstraintStatus::FREE< / a > ));< / div >
< div class = "line" > < a name = "l02342" > < / a > < span class = "lineno" > 2342< / span >   < span class = "keywordflow" > if< / span > (deleted_rows_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (transpose_col).< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ()) {< / div >
< div class = "line" > < a name = "l02343" > < / a > < span class = "lineno" > 2343< / span >   deleted_rows_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a1e9f788d4507f2461b4f775755aaf82e" > mutable_column< / a > (transpose_col)< / div >
< div class = "line" > < a name = "l02344" > < / a > < span class = "lineno" > 2344< / span >   -> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af3346e19f245a59be830e9558002d2d4" > PopulateFromSparseVector< / a > (column);< / div >
< div class = "line" > < a name = "l02345" > < / a > < span class = "lineno" > 2345< / span >   }< / div >
< div class = "line" > < a name = "l02346" > < / a > < span class = "lineno" > 2346< / span >   UpdateConstraintBoundsWithVariableBounds(e, lp);< / div >
< div class = "line" > < a name = "l02347" > < / a > < span class = "lineno" > 2347< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a46b7ed2e9e3a3d5dc9a024801e1baaf7" > MarkColumnForDeletion< / a > (e.col);< / div >
< div class = "line" > < a name = "l02348" > < / a > < span class = "lineno" > 2348< / span >   }< / div >
< div class = "line" > < a name = "l02349" > < / a > < span class = "lineno" > 2349< / span >   < / div >
< div class = "line" > < a name = "l02350" > < / a > < span class = "lineno" > 2350< / span >   < span class = "comment" > // We need to restore the variable value in order to satisfy the constraint.< / span > < / div >
< div class = "line" > < a name = "l02351" > < / a > < span class = "lineno" > 2351< / span >   < span class = "keywordtype" > void< / span > SingletonUndo::ZeroCostSingletonColumnUndo(< / div >
< div class = "line" > < a name = "l02352" > < / a > < span class = "lineno" > 2352< / span >   < span class = "keyword" > const< / span > GlopParameters& < a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > , < span class = "keyword" > const< / span > SparseMatrix& deleted_rows,< / div >
< div class = "line" > < a name = "l02353" > < / a > < span class = "lineno" > 2353< / span >   ProblemSolution* solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l02354" > < / a > < span class = "lineno" > 2354< / span >   < span class = "comment" > // If the variable was fixed, this is easy. Note that this is the only< / span > < / div >
< div class = "line" > < a name = "l02355" > < / a > < span class = "lineno" > 2355< / span >   < span class = "comment" > // possible case if the current constraint status is FIXED.< / span > < / div >
< div class = "line" > < a name = "l02356" > < / a > < span class = "lineno" > 2356< / span >   < span class = "keywordflow" > if< / span > (variable_upper_bound_ == variable_lower_bound_) {< / div >
< div class = "line" > < a name = "l02357" > < / a > < span class = "lineno" > 2357< / span >   solution-> primal_values[e_.col] = variable_lower_bound_;< / div >
< div class = "line" > < a name = "l02358" > < / a > < span class = "lineno" > 2358< / span >   solution-> variable_statuses[e_.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > ;< / div >
< div class = "line" > < a name = "l02359" > < / a > < span class = "lineno" > 2359< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02360" > < / a > < span class = "lineno" > 2360< / span >   }< / div >
< div class = "line" > < a name = "l02361" > < / a > < span class = "lineno" > 2361< / span >   < / div >
< div class = "line" > < a name = "l02362" > < / a > < span class = "lineno" > 2362< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9" > ConstraintStatus< / a > ct_status = solution-> constraint_statuses[e_.row];< / div >
< div class = "line" > < a name = "l02363" > < / a > < span class = "lineno" > 2363< / span >   DCHECK_NE(ct_status, < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > ConstraintStatus::FIXED_VALUE< / a > );< / div >
< div class = "line" > < a name = "l02364" > < / a > < span class = "lineno" > 2364< / span >   < span class = "keywordflow" > if< / span > (ct_status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ||< / div >
< div class = "line" > < a name = "l02365" > < / a > < span class = "lineno" > 2365< / span >   ct_status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l02366" > < / a > < span class = "lineno" > 2366< / span >   < span class = "keywordflow" > if< / span > ((ct_status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > & & e_.coeff > 0.0) ||< / div >
< div class = "line" > < a name = "l02367" > < / a > < span class = "lineno" > 2367< / span >   (ct_status == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > & & e_.coeff < 0.0)) {< / div >
< div class = "line" > < a name = "l02368" > < / a > < span class = "lineno" > 2368< / span >   DCHECK(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (variable_lower_bound_));< / div >
< div class = "line" > < a name = "l02369" > < / a > < span class = "lineno" > 2369< / span >   solution-> primal_values[e_.col] = variable_lower_bound_;< / div >
< div class = "line" > < a name = "l02370" > < / a > < span class = "lineno" > 2370< / span >   solution-> variable_statuses[e_.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02371" > < / a > < span class = "lineno" > 2371< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02372" > < / a > < span class = "lineno" > 2372< / span >   DCHECK(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (variable_upper_bound_));< / div >
< div class = "line" > < a name = "l02373" > < / a > < span class = "lineno" > 2373< / span >   solution-> primal_values[e_.col] = variable_upper_bound_;< / div >
< div class = "line" > < a name = "l02374" > < / a > < span class = "lineno" > 2374< / span >   solution-> variable_statuses[e_.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02375" > < / a > < span class = "lineno" > 2375< / span >   }< / div >
< div class = "line" > < a name = "l02376" > < / a > < span class = "lineno" > 2376< / span >   < span class = "keywordflow" > if< / span > (constraint_upper_bound_ == constraint_lower_bound_) {< / div >
< div class = "line" > < a name = "l02377" > < / a > < span class = "lineno" > 2377< / span >   solution-> constraint_statuses[e_.row] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > ConstraintStatus::FIXED_VALUE< / a > ;< / div >
< div class = "line" > < a name = "l02378" > < / a > < span class = "lineno" > 2378< / span >   }< / div >
< div class = "line" > < a name = "l02379" > < / a > < span class = "lineno" > 2379< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02380" > < / a > < span class = "lineno" > 2380< / span >   }< / div >
< div class = "line" > < a name = "l02381" > < / a > < span class = "lineno" > 2381< / span >   < / div >
< div class = "line" > < a name = "l02382" > < / a > < span class = "lineno" > 2382< / span >   < span class = "comment" > // This is the activity of the constraint before the singleton variable is< / span > < / div >
< div class = "line" > < a name = "l02383" > < / a > < span class = "lineno" > 2383< / span >   < span class = "comment" > // added back to it.< / span > < / div >
< div class = "line" > < a name = "l02384" > < / a > < span class = "lineno" > 2384< / span >   < span class = "keyword" > const< / span > ColIndex row_as_col = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e_.row);< / div >
< div class = "line" > < a name = "l02385" > < / a > < span class = "lineno" > 2385< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > activity =< / div >
< div class = "line" > < a name = "l02386" > < / a > < span class = "lineno" > 2386< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a3d9874910f9632900fe8677463b1c0be" > ScalarProduct< / a > (solution-> primal_values, deleted_rows.column(row_as_col));< / div >
< div class = "line" > < a name = "l02387" > < / a > < span class = "lineno" > 2387< / span >   < / div >
< div class = "line" > < a name = "l02388" > < / a > < span class = "lineno" > 2388< / span >   < span class = "comment" > // First we try to fix the variable at its lower or upper bound and leave the< / span > < / div >
< div class = "line" > < a name = "l02389" > < / a > < span class = "lineno" > 2389< / span >   < span class = "comment" > // constraint VariableStatus::BASIC. Note that we use the same logic as in< / span > < / div >
< div class = "line" > < a name = "l02390" > < / a > < span class = "lineno" > 2390< / span >   < span class = "comment" > // Preprocessor::IsSmallerWithinPreprocessorZeroTolerance() which we can' t use< / span > < / div >
< div class = "line" > < a name = "l02391" > < / a > < span class = "lineno" > 2391< / span >   < span class = "comment" > // here because we are not deriving from the Preprocessor class.< / span > < / div >
< div class = "line" > < a name = "l02392" > < / a > < span class = "lineno" > 2392< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > tolerance = < a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > .preprocessor_zero_tolerance();< / div >
< div class = "line" > < a name = "l02393" > < / a > < span class = "lineno" > 2393< / span >   < span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > is_smaller_with_tolerance = [tolerance](< a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "constraint__solver_2table_8cc.html#af730895c6c6ef6e03caaf6251192dfd2" > a< / a > ,< / div >
< div class = "line" > < a name = "l02394" > < / a > < span class = "lineno" > 2394< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "constraint__solver_2table_8cc.html#a344010e26426d6a13411648d988bc9b6" > b< / a > ) {< / div >
< div class = "line" > < a name = "l02395" > < / a > < span class = "lineno" > 2395< / span >   < a class = "code" href = "namespaceoperations__research.html#a096ed4f933f943ccb8859e0dc08b06ca" > return ::operations_research::IsSmallerWithinTolerance< / a > (< a class = "code" href = "constraint__solver_2table_8cc.html#af730895c6c6ef6e03caaf6251192dfd2" > a< / a > , < a class = "code" href = "constraint__solver_2table_8cc.html#a344010e26426d6a13411648d988bc9b6" > b< / a > , tolerance);< / div >
< div class = "line" > < a name = "l02396" > < / a > < span class = "lineno" > 2396< / span >   };< / div >
< div class = "line" > < a name = "l02397" > < / a > < span class = "lineno" > 2397< / span >   < span class = "keywordflow" > if< / span > (variable_lower_bound_ != -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l02398" > < / a > < span class = "lineno" > 2398< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > activity_at_lb =< / div >
< div class = "line" > < a name = "l02399" > < / a > < span class = "lineno" > 2399< / span >   activity + e_.coeff * variable_lower_bound_;< / div >
< div class = "line" > < a name = "l02400" > < / a > < span class = "lineno" > 2400< / span >   < span class = "keywordflow" > if< / span > (is_smaller_with_tolerance(constraint_lower_bound_, activity_at_lb) & & < / div >
< div class = "line" > < a name = "l02401" > < / a > < span class = "lineno" > 2401< / span >   is_smaller_with_tolerance(activity_at_lb, constraint_upper_bound_)) {< / div >
< div class = "line" > < a name = "l02402" > < / a > < span class = "lineno" > 2402< / span >   solution-> primal_values[e_.col] = variable_lower_bound_;< / div >
< div class = "line" > < a name = "l02403" > < / a > < span class = "lineno" > 2403< / span >   solution-> variable_statuses[e_.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02404" > < / a > < span class = "lineno" > 2404< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02405" > < / a > < span class = "lineno" > 2405< / span >   }< / div >
< div class = "line" > < a name = "l02406" > < / a > < span class = "lineno" > 2406< / span >   }< / div >
< div class = "line" > < a name = "l02407" > < / a > < span class = "lineno" > 2407< / span >   < span class = "keywordflow" > if< / span > (variable_upper_bound_ != < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l02408" > < / a > < span class = "lineno" > 2408< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > actibity_at_ub =< / div >
< div class = "line" > < a name = "l02409" > < / a > < span class = "lineno" > 2409< / span >   activity + e_.coeff * variable_upper_bound_;< / div >
< div class = "line" > < a name = "l02410" > < / a > < span class = "lineno" > 2410< / span >   < span class = "keywordflow" > if< / span > (is_smaller_with_tolerance(constraint_lower_bound_, actibity_at_ub) & & < / div >
< div class = "line" > < a name = "l02411" > < / a > < span class = "lineno" > 2411< / span >   is_smaller_with_tolerance(actibity_at_ub, constraint_upper_bound_)) {< / div >
< div class = "line" > < a name = "l02412" > < / a > < span class = "lineno" > 2412< / span >   solution-> primal_values[e_.col] = variable_upper_bound_;< / div >
< div class = "line" > < a name = "l02413" > < / a > < span class = "lineno" > 2413< / span >   solution-> variable_statuses[e_.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02414" > < / a > < span class = "lineno" > 2414< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02415" > < / a > < span class = "lineno" > 2415< / span >   }< / div >
< div class = "line" > < a name = "l02416" > < / a > < span class = "lineno" > 2416< / span >   }< / div >
< div class = "line" > < a name = "l02417" > < / a > < span class = "lineno" > 2417< / span >   < / div >
< div class = "line" > < a name = "l02418" > < / a > < span class = "lineno" > 2418< / span >   < span class = "comment" > // If the current constraint is UNBOUNDED, then the variable is too< / span > < / div >
< div class = "line" > < a name = "l02419" > < / a > < span class = "lineno" > 2419< / span >   < span class = "comment" > // because of the two cases above. We just set its status to< / span > < / div >
< div class = "line" > < a name = "l02420" > < / a > < span class = "lineno" > 2420< / span >   < span class = "comment" > // VariableStatus::FREE.< / span > < / div >
< div class = "line" > < a name = "l02421" > < / a > < span class = "lineno" > 2421< / span >   < span class = "keywordflow" > if< / span > (constraint_lower_bound_ == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > & & < / div >
< div class = "line" > < a name = "l02422" > < / a > < span class = "lineno" > 2422< / span >   constraint_upper_bound_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l02423" > < / a > < span class = "lineno" > 2423< / span >   solution-> primal_values[e_.col] = 0.0;< / div >
< div class = "line" > < a name = "l02424" > < / a > < span class = "lineno" > 2424< / span >   solution-> variable_statuses[e_.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > ;< / div >
< div class = "line" > < a name = "l02425" > < / a > < span class = "lineno" > 2425< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02426" > < / a > < span class = "lineno" > 2426< / span >   }< / div >
< div class = "line" > < a name = "l02427" > < / a > < span class = "lineno" > 2427< / span >   < / div >
< div class = "line" > < a name = "l02428" > < / a > < span class = "lineno" > 2428< / span >   < span class = "comment" > // If the previous cases didn' t apply, the constraint will be fixed to its< / span > < / div >
< div class = "line" > < a name = "l02429" > < / a > < span class = "lineno" > 2429< / span >   < span class = "comment" > // bounds and the variable will be made VariableStatus::BASIC.< / span > < / div >
< div class = "line" > < a name = "l02430" > < / a > < span class = "lineno" > 2430< / span >   solution-> variable_statuses[e_.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
< div class = "line" > < a name = "l02431" > < / a > < span class = "lineno" > 2431< / span >   < span class = "keywordflow" > if< / span > (constraint_lower_bound_ == constraint_upper_bound_) {< / div >
< div class = "line" > < a name = "l02432" > < / a > < span class = "lineno" > 2432< / span >   solution-> primal_values[e_.col] =< / div >
< div class = "line" > < a name = "l02433" > < / a > < span class = "lineno" > 2433< / span >   (constraint_lower_bound_ - activity) / e_.coeff;< / div >
< div class = "line" > < a name = "l02434" > < / a > < span class = "lineno" > 2434< / span >   solution-> constraint_statuses[e_.row] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > ConstraintStatus::FIXED_VALUE< / a > ;< / div >
< div class = "line" > < a name = "l02435" > < / a > < span class = "lineno" > 2435< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l02436" > < / a > < span class = "lineno" > 2436< / span >   }< / div >
< div class = "line" > < a name = "l02437" > < / a > < span class = "lineno" > 2437< / span >   < / div >
< div class = "line" > < a name = "l02438" > < / a > < span class = "lineno" > 2438< / span >   < span class = "keywordtype" > bool< / span > set_constraint_to_lower_bound;< / div >
< div class = "line" > < a name = "l02439" > < / a > < span class = "lineno" > 2439< / span >   < span class = "keywordflow" > if< / span > (constraint_lower_bound_ == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l02440" > < / a > < span class = "lineno" > 2440< / span >   set_constraint_to_lower_bound = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02441" > < / a > < span class = "lineno" > 2441< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (constraint_upper_bound_ == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l02442" > < / a > < span class = "lineno" > 2442< / span >   set_constraint_to_lower_bound = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02443" > < / a > < span class = "lineno" > 2443< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02444" > < / a > < span class = "lineno" > 2444< / span >   < span class = "comment" > // In this case we select the value that is the most inside the variable< / span > < / div >
< div class = "line" > < a name = "l02445" > < / a > < span class = "lineno" > 2445< / span >   < span class = "comment" > // bound.< / span > < / div >
< div class = "line" > < a name = "l02446" > < / a > < span class = "lineno" > 2446< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > to_lb = (constraint_lower_bound_ - activity) / e_.coeff;< / div >
< div class = "line" > < a name = "l02447" > < / a > < span class = "lineno" > 2447< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > to_ub = (constraint_upper_bound_ - activity) / e_.coeff;< / div >
< div class = "line" > < a name = "l02448" > < / a > < span class = "lineno" > 2448< / span >   set_constraint_to_lower_bound =< / div >
< div class = "line" > < a name = "l02449" > < / a > < span class = "lineno" > 2449< / span >   < a class = "code" href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > std::max< / a > (variable_lower_bound_ - to_lb, to_lb - variable_upper_bound_) < < / div >
< div class = "line" > < a name = "l02450" > < / a > < span class = "lineno" > 2450< / span >   < a class = "code" href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > std::max< / a > (variable_lower_bound_ - to_ub, to_ub - variable_upper_bound_);< / div >
< div class = "line" > < a name = "l02451" > < / a > < span class = "lineno" > 2451< / span >   }< / div >
< div class = "line" > < a name = "l02452" > < / a > < span class = "lineno" > 2452< / span >   < / div >
< div class = "line" > < a name = "l02453" > < / a > < span class = "lineno" > 2453< / span >   < span class = "keywordflow" > if< / span > (set_constraint_to_lower_bound) {< / div >
< div class = "line" > < a name = "l02454" > < / a > < span class = "lineno" > 2454< / span >   solution-> primal_values[e_.col] =< / div >
< div class = "line" > < a name = "l02455" > < / a > < span class = "lineno" > 2455< / span >   (constraint_lower_bound_ - activity) / e_.coeff;< / div >
< div class = "line" > < a name = "l02456" > < / a > < span class = "lineno" > 2456< / span >   solution-> constraint_statuses[e_.row] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02457" > < / a > < span class = "lineno" > 2457< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02458" > < / a > < span class = "lineno" > 2458< / span >   solution-> primal_values[e_.col] =< / div >
< div class = "line" > < a name = "l02459" > < / a > < span class = "lineno" > 2459< / span >   (constraint_upper_bound_ - activity) / e_.coeff;< / div >
< div class = "line" > < a name = "l02460" > < / a > < span class = "lineno" > 2460< / span >   solution-> constraint_statuses[e_.row] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02461" > < / a > < span class = "lineno" > 2461< / span >   }< / div >
< div class = "line" > < a name = "l02462" > < / a > < span class = "lineno" > 2462< / span >   }< / div >
< div class = "line" > < a name = "l02463" > < / a > < span class = "lineno" > 2463< / span >   < / div >
< div class = "line" > < a name = "l02464" > < / a > < span class = "lineno" > 2464< / span >   < span class = "keywordtype" > void< / span > SingletonPreprocessor::DeleteSingletonColumnInEquality(< / div >
< div class = "line" > < a name = "l02465" > < / a > < span class = "lineno" > 2465< / span >   < span class = "keyword" > const< / span > SparseMatrix& transpose, MatrixEntry e, LinearProgram* lp) {< / div >
< div class = "line" > < a name = "l02466" > < / a > < span class = "lineno" > 2466< / span >   < span class = "comment" > // Save information for the undo.< / span > < / div >
< div class = "line" > < a name = "l02467" > < / a > < span class = "lineno" > 2467< / span >   < span class = "keyword" > const< / span > ColIndex transpose_col = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e.row);< / div >
< div class = "line" > < a name = "l02468" > < / a > < span class = "lineno" > 2468< / span >   < span class = "keyword" > const< / span > SparseColumn& row_as_column = transpose.column(transpose_col);< / div >
< div class = "line" > < a name = "l02469" > < / a > < span class = "lineno" > 2469< / span >   undo_stack_.push_back(< / div >
< div class = "line" > < a name = "l02470" > < / a > < span class = "lineno" > 2470< / span >   SingletonUndo(< a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a723392e031e932ce6773d9ba469ccfa9" > SingletonUndo::SINGLETON_COLUMN_IN_EQUALITY< / a > , *lp, e,< / div >
< div class = "line" > < a name = "l02471" > < / a > < span class = "lineno" > 2471< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a88c189a42c87aa49d667fc8ab76bc323" > ConstraintStatus::FREE< / a > ));< / div >
< div class = "line" > < a name = "l02472" > < / a > < span class = "lineno" > 2472< / span >   deleted_rows_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a1e9f788d4507f2461b4f775755aaf82e" > mutable_column< / a > (transpose_col)< / div >
< div class = "line" > < a name = "l02473" > < / a > < span class = "lineno" > 2473< / span >   -> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af3346e19f245a59be830e9558002d2d4" > PopulateFromSparseVector< / a > (row_as_column);< / div >
< div class = "line" > < a name = "l02474" > < / a > < span class = "lineno" > 2474< / span >   < / div >
< div class = "line" > < a name = "l02475" > < / a > < span class = "lineno" > 2475< / span >   < span class = "comment" > // Update the objective function using the equality constraint. We have< / span > < / div >
< div class = "line" > < a name = "l02476" > < / a > < span class = "lineno" > 2476< / span >   < span class = "comment" > // v_col*coeff + expression = rhs,< / span > < / div >
< div class = "line" > < a name = "l02477" > < / a > < span class = "lineno" > 2477< / span >   < span class = "comment" > // so the contribution of this variable to the cost function (v_col * cost)< / span > < / div >
< div class = "line" > < a name = "l02478" > < / a > < span class = "lineno" > 2478< / span >   < span class = "comment" > // can be rewrited as:< / span > < / div >
< div class = "line" > < a name = "l02479" > < / a > < span class = "lineno" > 2479< / span >   < span class = "comment" > // (rhs * cost - expression * cost) / coeff.< / span > < / div >
< div class = "line" > < a name = "l02480" > < / a > < span class = "lineno" > 2480< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > rhs = lp-> constraint_upper_bounds()[e.row];< / div >
< div class = "line" > < a name = "l02481" > < / a > < span class = "lineno" > 2481< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > = lp-> objective_coefficients()[e.col];< / div >
< div class = "line" > < a name = "l02482" > < / a > < span class = "lineno" > 2482< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > multiplier = < a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > / e.coeff;< / div >
< div class = "line" > < a name = "l02483" > < / a > < span class = "lineno" > 2483< / span >   lp-> SetObjectiveOffset(lp-> objective_offset() + rhs * multiplier);< / div >
< div class = "line" > < a name = "l02484" > < / a > < span class = "lineno" > 2484< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : row_as_column) {< / div >
< div class = "line" > < a name = "l02485" > < / a > < span class = "lineno" > 2485< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e.row());< / div >
< div class = "line" > < a name = "l02486" > < / a > < span class = "lineno" > 2486< / span >   < span class = "keywordflow" > if< / span > (!column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a1fbdcd623d96ea5e73d664ce0c6bd002" > IsColumnMarked< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
< div class = "line" > < a name = "l02487" > < / a > < span class = "lineno" > 2487< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_cost =< / div >
< div class = "line" > < a name = "l02488" > < / a > < span class = "lineno" > 2488< / span >   lp-> objective_coefficients()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] - e.coefficient() * multiplier;< / div >
< div class = "line" > < a name = "l02489" > < / a > < span class = "lineno" > 2489< / span >   < / div >
< div class = "line" > < a name = "l02490" > < / a > < span class = "lineno" > 2490< / span >   < span class = "comment" > // TODO(user): It is important to avoid having non-zero costs which are< / span > < / div >
< div class = "line" > < a name = "l02491" > < / a > < span class = "lineno" > 2491< / span >   < span class = "comment" > // the result of numerical error. This is because we still miss some< / span > < / div >
< div class = "line" > < a name = "l02492" > < / a > < span class = "lineno" > 2492< / span >   < span class = "comment" > // tolerances in a few preprocessors. Like an empty column with a cost of< / span > < / div >
< div class = "line" > < a name = "l02493" > < / a > < span class = "lineno" > 2493< / span >   < span class = "comment" > // 1e-17 and unbounded towards infinity is currently implying that the< / span > < / div >
< div class = "line" > < a name = "l02494" > < / a > < span class = "lineno" > 2494< / span >   < span class = "comment" > // problem is unbounded. This will need fixing.< / span > < / div >
< div class = "line" > < a name = "l02495" > < / a > < span class = "lineno" > 2495< / span >   < span class = "keywordflow" > if< / span > (std::abs(new_cost) < < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .preprocessor_zero_tolerance()) {< / div >
< div class = "line" > < a name = "l02496" > < / a > < span class = "lineno" > 2496< / span >   new_cost = 0.0;< / div >
< div class = "line" > < a name = "l02497" > < / a > < span class = "lineno" > 2497< / span >   }< / div >
< div class = "line" > < a name = "l02498" > < / a > < span class = "lineno" > 2498< / span >   lp-> SetObjectiveCoefficient(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , new_cost);< / div >
< div class = "line" > < a name = "l02499" > < / a > < span class = "lineno" > 2499< / span >   }< / div >
< div class = "line" > < a name = "l02500" > < / a > < span class = "lineno" > 2500< / span >   }< / div >
< div class = "line" > < a name = "l02501" > < / a > < span class = "lineno" > 2501< / span >   < / div >
< div class = "line" > < a name = "l02502" > < / a > < span class = "lineno" > 2502< / span >   < span class = "comment" > // Now delete the column like a singleton column without cost.< / span > < / div >
< div class = "line" > < a name = "l02503" > < / a > < span class = "lineno" > 2503< / span >   UpdateConstraintBoundsWithVariableBounds(e, lp);< / div >
< div class = "line" > < a name = "l02504" > < / a > < span class = "lineno" > 2504< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a46b7ed2e9e3a3d5dc9a024801e1baaf7" > MarkColumnForDeletion< / a > (e.col);< / div >
< div class = "line" > < a name = "l02505" > < / a > < span class = "lineno" > 2505< / span >   }< / div >
< div class = "line" > < a name = "l02506" > < / a > < span class = "lineno" > 2506< / span >   < / div >
< div class = "line" > < a name = "l02507" > < / a > < span class = "lineno" > 2507< / span >   < span class = "keywordtype" > void< / span > SingletonUndo::SingletonColumnInEqualityUndo(< / div >
< div class = "line" > < a name = "l02508" > < / a > < span class = "lineno" > 2508< / span >   < span class = "keyword" > const< / span > GlopParameters& < a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > , < span class = "keyword" > const< / span > SparseMatrix& deleted_rows,< / div >
< div class = "line" > < a name = "l02509" > < / a > < span class = "lineno" > 2509< / span >   ProblemSolution* solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l02510" > < / a > < span class = "lineno" > 2510< / span >   < span class = "comment" > // First do the same as a zero-cost singleton column.< / span > < / div >
< div class = "line" > < a name = "l02511" > < / a > < span class = "lineno" > 2511< / span >   ZeroCostSingletonColumnUndo(< a class = "code" href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > , deleted_rows, solution);< / div >
< div class = "line" > < a name = "l02512" > < / a > < span class = "lineno" > 2512< / span >   < / div >
< div class = "line" > < a name = "l02513" > < / a > < span class = "lineno" > 2513< / span >   < span class = "comment" > // Then, restore the dual optimal value taking into account the cost< / span > < / div >
< div class = "line" > < a name = "l02514" > < / a > < span class = "lineno" > 2514< / span >   < span class = "comment" > // modification.< / span > < / div >
< div class = "line" > < a name = "l02515" > < / a > < span class = "lineno" > 2515< / span >   solution-> dual_values[e_.row] += cost_ / e_.coeff;< / div >
< div class = "line" > < a name = "l02516" > < / a > < span class = "lineno" > 2516< / span >   < span class = "keywordflow" > if< / span > (solution-> constraint_statuses[e_.row] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae4ac03f6c9f00665644e868dd1fb9f1e" > ConstraintStatus::BASIC< / a > ) {< / div >
< div class = "line" > < a name = "l02517" > < / a > < span class = "lineno" > 2517< / span >   solution-> variable_statuses[e_.col] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
< div class = "line" > < a name = "l02518" > < / a > < span class = "lineno" > 2518< / span >   solution-> constraint_statuses[e_.row] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > ConstraintStatus::FIXED_VALUE< / a > ;< / div >
< div class = "line" > < a name = "l02519" > < / a > < span class = "lineno" > 2519< / span >   }< / div >
< div class = "line" > < a name = "l02520" > < / a > < span class = "lineno" > 2520< / span >   }< / div >
< div class = "line" > < a name = "l02521" > < / a > < span class = "lineno" > 2521< / span >   < / div >
< div class = "line" > < a name = "l02522" > < / a > < span class = "lineno" > 2522< / span >   < span class = "keywordtype" > void< / span > SingletonUndo::MakeConstraintAnEqualityUndo(< / div >
< div class = "line" > < a name = "l02523" > < / a > < span class = "lineno" > 2523< / span >   ProblemSolution* solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l02524" > < / a > < span class = "lineno" > 2524< / span >   < span class = "keywordflow" > if< / span > (solution-> constraint_statuses[e_.row] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > ConstraintStatus::FIXED_VALUE< / a > ) {< / div >
< div class = "line" > < a name = "l02525" > < / a > < span class = "lineno" > 2525< / span >   solution-> constraint_statuses[e_.row] = constraint_status_;< / div >
< div class = "line" > < a name = "l02526" > < / a > < span class = "lineno" > 2526< / span >   }< / div >
< div class = "line" > < a name = "l02527" > < / a > < span class = "lineno" > 2527< / span >   }< / div >
< div class = "line" > < a name = "l02528" > < / a > < span class = "lineno" > 2528< / span >   < / div >
< div class = "line" > < a name = "l02529" > < / a > < span class = "lineno" > 2529< / span >   < span class = "keywordtype" > bool< / span > SingletonPreprocessor::MakeConstraintAnEqualityIfPossible(< / div >
< div class = "line" > < a name = "l02530" > < / a > < span class = "lineno" > 2530< / span >   < span class = "keyword" > const< / span > SparseMatrix& transpose, MatrixEntry e, LinearProgram* lp) {< / div >
< div class = "line" > < a name = "l02531" > < / a > < span class = "lineno" > 2531< / span >   < span class = "comment" > // TODO(user): We could skip early if the relevant constraint bound is< / span > < / div >
< div class = "line" > < a name = "l02532" > < / a > < span class = "lineno" > 2532< / span >   < span class = "comment" > // infinity.< / span > < / div >
< div class = "line" > < a name = "l02533" > < / a > < span class = "lineno" > 2533< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > cst_lower_bound = lp-> constraint_lower_bounds()[e.row];< / div >
< div class = "line" > < a name = "l02534" > < / a > < span class = "lineno" > 2534< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > cst_upper_bound = lp-> constraint_upper_bounds()[e.row];< / div >
< div class = "line" > < a name = "l02535" > < / a > < span class = "lineno" > 2535< / span >   < span class = "keywordflow" > if< / span > (cst_lower_bound == cst_upper_bound) < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02536" > < / a > < span class = "lineno" > 2536< / span >   < / div >
< div class = "line" > < a name = "l02537" > < / a > < span class = "lineno" > 2537< / span >   < span class = "comment" > // To be efficient, we only process a row once and cache the domain that an< / span > < / div >
< div class = "line" > < a name = "l02538" > < / a > < span class = "lineno" > 2538< / span >   < span class = "comment" > // " artificial" extra variable x with coefficient 1.0 could take while still< / span > < / div >
< div class = "line" > < a name = "l02539" > < / a > < span class = "lineno" > 2539< / span >   < span class = "comment" > // making the constraint feasible. The domain bounds for the constraint e.row< / span > < / div >
< div class = "line" > < a name = "l02540" > < / a > < span class = "lineno" > 2540< / span >   < span class = "comment" > // will be stored in row_lb_sum_[e.row] and row_ub_sum_[e.row].< / span > < / div >
< div class = "line" > < a name = "l02541" > < / a > < span class = "lineno" > 2541< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > & variable_ubs = lp-> variable_upper_bounds();< / div >
< div class = "line" > < a name = "l02542" > < / a > < span class = "lineno" > 2542< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > DenseRow< / a > & variable_lbs = lp-> variable_lower_bounds();< / div >
< div class = "line" > < a name = "l02543" > < / a > < span class = "lineno" > 2543< / span >   < span class = "keywordflow" > if< / span > (e.row > = row_sum_is_cached_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > () || !row_sum_is_cached_[e.row]) {< / div >
< div class = "line" > < a name = "l02544" > < / a > < span class = "lineno" > 2544< / span >   < span class = "keywordflow" > if< / span > (e.row > = row_sum_is_cached_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a60304b65bf89363bcc3165d3cde67f86" > size< / a > ()) {< / div >
< div class = "line" > < a name = "l02545" > < / a > < span class = "lineno" > 2545< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > new_size = e.row.value() + 1;< / div >
< div class = "line" > < a name = "l02546" > < / a > < span class = "lineno" > 2546< / span >   row_sum_is_cached_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a4e3670a285a3642eaa07f66766cffa72" > resize< / a > (new_size);< / div >
< div class = "line" > < a name = "l02547" > < / a > < span class = "lineno" > 2547< / span >   row_lb_sum_.resize(new_size);< / div >
< div class = "line" > < a name = "l02548" > < / a > < span class = "lineno" > 2548< / span >   row_ub_sum_.resize(new_size);< / div >
< div class = "line" > < a name = "l02549" > < / a > < span class = "lineno" > 2549< / span >   }< / div >
< div class = "line" > < a name = "l02550" > < / a > < span class = "lineno" > 2550< / span >   row_sum_is_cached_[e.row] = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02551" > < / a > < span class = "lineno" > 2551< / span >   row_lb_sum_[e.row].Add(cst_lower_bound);< / div >
< div class = "line" > < a name = "l02552" > < / a > < span class = "lineno" > 2552< / span >   row_ub_sum_[e.row].Add(cst_upper_bound);< / div >
< div class = "line" > < a name = "l02553" > < / a > < span class = "lineno" > 2553< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > entry :< / div >
< div class = "line" > < a name = "l02554" > < / a > < span class = "lineno" > 2554< / span >   transpose.column(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e.row))) {< / div >
< div class = "line" > < a name = "l02555" > < / a > < span class = "lineno" > 2555< / span >   < span class = "keyword" > const< / span > ColIndex row_as_col = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (entry.row());< / div >
< div class = "line" > < a name = "l02556" > < / a > < span class = "lineno" > 2556< / span >   < / div >
< div class = "line" > < a name = "l02557" > < / a > < span class = "lineno" > 2557< / span >   < span class = "comment" > // Tricky: Even if later more columns are deleted, these " cached" sums< / span > < / div >
< div class = "line" > < a name = "l02558" > < / a > < span class = "lineno" > 2558< / span >   < span class = "comment" > // will actually still be valid because we only delete columns in a< / span > < / div >
< div class = "line" > < a name = "l02559" > < / a > < span class = "lineno" > 2559< / span >   < span class = "comment" > // compatible way.< / span > < / div >
< div class = "line" > < a name = "l02560" > < / a > < span class = "lineno" > 2560< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02561" > < / a > < span class = "lineno" > 2561< / span >   < span class = "comment" > // TODO(user): Find a more robust way? it seems easy to add new deletion< / span > < / div >
< div class = "line" > < a name = "l02562" > < / a > < span class = "lineno" > 2562< / span >   < span class = "comment" > // rules that may break this assumption.< / span > < / div >
< div class = "line" > < a name = "l02563" > < / a > < span class = "lineno" > 2563< / span >   < span class = "keywordflow" > if< / span > (column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a1fbdcd623d96ea5e73d664ce0c6bd002" > IsColumnMarked< / a > (row_as_col)) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02564" > < / a > < span class = "lineno" > 2564< / span >   < span class = "keywordflow" > if< / span > (entry.coefficient() > 0.0) {< / div >
< div class = "line" > < a name = "l02565" > < / a > < span class = "lineno" > 2565< / span >   row_lb_sum_[e.row].Add(-entry.coefficient() * variable_ubs[row_as_col]);< / div >
< div class = "line" > < a name = "l02566" > < / a > < span class = "lineno" > 2566< / span >   row_ub_sum_[e.row].Add(-entry.coefficient() * variable_lbs[row_as_col]);< / div >
< div class = "line" > < a name = "l02567" > < / a > < span class = "lineno" > 2567< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02568" > < / a > < span class = "lineno" > 2568< / span >   row_lb_sum_[e.row].Add(-entry.coefficient() * variable_lbs[row_as_col]);< / div >
< div class = "line" > < a name = "l02569" > < / a > < span class = "lineno" > 2569< / span >   row_ub_sum_[e.row].Add(-entry.coefficient() * variable_ubs[row_as_col]);< / div >
< div class = "line" > < a name = "l02570" > < / a > < span class = "lineno" > 2570< / span >   }< / div >
< div class = "line" > < a name = "l02571" > < / a > < span class = "lineno" > 2571< / span >   < / div >
< div class = "line" > < a name = "l02572" > < / a > < span class = "lineno" > 2572< / span >   < span class = "comment" > // TODO(user): Abort early if both sums contain more than 1 infinity?< / span > < / div >
< div class = "line" > < a name = "l02573" > < / a > < span class = "lineno" > 2573< / span >   }< / div >
< div class = "line" > < a name = "l02574" > < / a > < span class = "lineno" > 2574< / span >   }< / div >
< div class = "line" > < a name = "l02575" > < / a > < span class = "lineno" > 2575< / span >   < / div >
< div class = "line" > < a name = "l02576" > < / a > < span class = "lineno" > 2576< / span >   < span class = "comment" > // Now that the lb/ub sum for the row is cached, we can use it to compute the< / span > < / div >
< div class = "line" > < a name = "l02577" > < / a > < span class = "lineno" > 2577< / span >   < span class = "comment" > // implied bounds on the variable from this constraint and the other< / span > < / div >
< div class = "line" > < a name = "l02578" > < / a > < span class = "lineno" > 2578< / span >   < span class = "comment" > // variables.< / span > < / div >
< div class = "line" > < a name = "l02579" > < / a > < span class = "lineno" > 2579< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > c = e.coeff;< / div >
< div class = "line" > < a name = "l02580" > < / a > < span class = "lineno" > 2580< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lb =< / div >
< div class = "line" > < a name = "l02581" > < / a > < span class = "lineno" > 2581< / span >   c > 0.0 ? row_lb_sum_[e.row].SumWithout(-c * variable_ubs[e.col]) / c< / div >
< div class = "line" > < a name = "l02582" > < / a > < span class = "lineno" > 2582< / span >   : row_ub_sum_[e.row].SumWithout(-c * variable_ubs[e.col]) / c;< / div >
< div class = "line" > < a name = "l02583" > < / a > < span class = "lineno" > 2583< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > ub =< / div >
< div class = "line" > < a name = "l02584" > < / a > < span class = "lineno" > 2584< / span >   c > 0.0 ? row_ub_sum_[e.row].SumWithout(-c * variable_lbs[e.col]) / c< / div >
< div class = "line" > < a name = "l02585" > < / a > < span class = "lineno" > 2585< / span >   : row_lb_sum_[e.row].SumWithout(-c * variable_lbs[e.col]) / c;< / div >
< div class = "line" > < a name = "l02586" > < / a > < span class = "lineno" > 2586< / span >   < / div >
< div class = "line" > < a name = "l02587" > < / a > < span class = "lineno" > 2587< / span >   < span class = "comment" > // Note that we could do the same for singleton variables with a cost of< / span > < / div >
< div class = "line" > < a name = "l02588" > < / a > < span class = "lineno" > 2588< / span >   < span class = "comment" > // 0.0, but such variable are already dealt with by< / span > < / div >
< div class = "line" > < a name = "l02589" > < / a > < span class = "lineno" > 2589< / span >   < span class = "comment" > // DeleteZeroCostSingletonColumn() so there is no point.< / span > < / div >
< div class = "line" > < a name = "l02590" > < / a > < span class = "lineno" > 2590< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > =< / div >
< div class = "line" > < a name = "l02591" > < / a > < span class = "lineno" > 2591< / span >   lp-> GetObjectiveCoefficientForMinimizationVersion(e.col);< / div >
< div class = "line" > < a name = "l02592" > < / a > < span class = "lineno" > 2592< / span >   DCHECK_NE(< a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > , 0.0);< / div >
< div class = "line" > < a name = "l02593" > < / a > < span class = "lineno" > 2593< / span >   < / div >
< div class = "line" > < a name = "l02594" > < / a > < span class = "lineno" > 2594< / span >   < span class = "comment" > // Note that some of the tests below will be always true if the bounds of< / span > < / div >
< div class = "line" > < a name = "l02595" > < / a > < span class = "lineno" > 2595< / span >   < span class = "comment" > // the column of index col are infinite. This is the desired behavior.< / span > < / div >
< div class = "line" > < a name = "l02596" > < / a > < span class = "lineno" > 2596< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9" > ConstraintStatus< / a > relaxed_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > ConstraintStatus::FIXED_VALUE< / a > ;< / div >
< div class = "line" > < a name = "l02597" > < / a > < span class = "lineno" > 2597< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > < 0.0 & & < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (< / div >
< div class = "line" > < a name = "l02598" > < / a > < span class = "lineno" > 2598< / span >   ub, lp-> variable_upper_bounds()[e.col])) {< / div >
< div class = "line" > < a name = "l02599" > < / a > < span class = "lineno" > 2599< / span >   < span class = "keywordflow" > if< / span > (e.coeff > 0) {< / div >
< div class = "line" > < a name = "l02600" > < / a > < span class = "lineno" > 2600< / span >   < span class = "keywordflow" > if< / span > (cst_upper_bound == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l02601" > < / a > < span class = "lineno" > 2601< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::INFEASIBLE_OR_UNBOUNDED;< / div >
< div class = "line" > < a name = "l02602" > < / a > < span class = "lineno" > 2602< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02603" > < / a > < span class = "lineno" > 2603< / span >   relaxed_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02604" > < / a > < span class = "lineno" > 2604< / span >   lp-> SetConstraintBounds(e.row, cst_upper_bound, cst_upper_bound);< / div >
< div class = "line" > < a name = "l02605" > < / a > < span class = "lineno" > 2605< / span >   }< / div >
< div class = "line" > < a name = "l02606" > < / a > < span class = "lineno" > 2606< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02607" > < / a > < span class = "lineno" > 2607< / span >   < span class = "keywordflow" > if< / span > (cst_lower_bound == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l02608" > < / a > < span class = "lineno" > 2608< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::INFEASIBLE_OR_UNBOUNDED;< / div >
< div class = "line" > < a name = "l02609" > < / a > < span class = "lineno" > 2609< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02610" > < / a > < span class = "lineno" > 2610< / span >   relaxed_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02611" > < / a > < span class = "lineno" > 2611< / span >   lp-> SetConstraintBounds(e.row, cst_lower_bound, cst_lower_bound);< / div >
< div class = "line" > < a name = "l02612" > < / a > < span class = "lineno" > 2612< / span >   }< / div >
< div class = "line" > < a name = "l02613" > < / a > < span class = "lineno" > 2613< / span >   }< / div >
< div class = "line" > < a name = "l02614" > < / a > < span class = "lineno" > 2614< / span >   < / div >
< div class = "line" > < a name = "l02615" > < / a > < span class = "lineno" > 2615< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > == ProblemStatus::INFEASIBLE_OR_UNBOUNDED) {< / div >
< div class = "line" > < a name = "l02616" > < / a > < span class = "lineno" > 2616< / span >   DCHECK_EQ(ub, < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l02617" > < / a > < span class = "lineno" > 2617< / span >   VLOG(1) < < < span class = "stringliteral" > " Problem ProblemStatus::INFEASIBLE_OR_UNBOUNDED, singleton " < / span > < / div >
< div class = "line" > < a name = "l02618" > < / a > < span class = "lineno" > 2618< / span >   < span class = "stringliteral" > " variable " < / span > < / div >
< div class = "line" > < a name = "l02619" > < / a > < span class = "lineno" > 2619< / span >   < < e.col < < < span class = "stringliteral" > " has a cost (for minimization) of " < / span > < < < a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > < / div >
< div class = "line" > < a name = "l02620" > < / a > < span class = "lineno" > 2620< / span >   < < < span class = "stringliteral" > " and is unbounded towards kInfinity." < / span > ;< / div >
< div class = "line" > < a name = "l02621" > < / a > < span class = "lineno" > 2621< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02622" > < / a > < span class = "lineno" > 2622< / span >   }< / div >
< div class = "line" > < a name = "l02623" > < / a > < span class = "lineno" > 2623< / span >   < / div >
< div class = "line" > < a name = "l02624" > < / a > < span class = "lineno" > 2624< / span >   < span class = "comment" > // This is important but tricky: The upper bound of the variable needs to< / span > < / div >
< div class = "line" > < a name = "l02625" > < / a > < span class = "lineno" > 2625< / span >   < span class = "comment" > // be relaxed. This is valid because the implied bound is lower than the< / span > < / div >
< div class = "line" > < a name = "l02626" > < / a > < span class = "lineno" > 2626< / span >   < span class = "comment" > // original upper bound here. This is needed, so that the optimal< / span > < / div >
< div class = "line" > < a name = "l02627" > < / a > < span class = "lineno" > 2627< / span >   < span class = "comment" > // primal/dual values of the new problem will also be optimal of the< / span > < / div >
< div class = "line" > < a name = "l02628" > < / a > < span class = "lineno" > 2628< / span >   < span class = "comment" > // original one.< / span > < / div >
< div class = "line" > < a name = "l02629" > < / a > < span class = "lineno" > 2629< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02630" > < / a > < span class = "lineno" > 2630< / span >   < span class = "comment" > // Let' s prove the case coeff > 0.0 for a minimization problem. In the new< / span > < / div >
< div class = "line" > < a name = "l02631" > < / a > < span class = "lineno" > 2631< / span >   < span class = "comment" > // problem, because the variable is unbounded towards +infinity, its< / span > < / div >
< div class = "line" > < a name = "l02632" > < / a > < span class = "lineno" > 2632< / span >   < span class = "comment" > // reduced cost must satisfy at optimality rc = cost - coeff * dual_v > =< / span > < / div >
< div class = "line" > < a name = "l02633" > < / a > < span class = "lineno" > 2633< / span >   < span class = "comment" > // 0. But this implies dual_v < = cost / coeff < = 0. This is exactly what< / span > < / div >
< div class = "line" > < a name = "l02634" > < / a > < span class = "lineno" > 2634< / span >   < span class = "comment" > // is needed for the optimality of the initial problem since the< / span > < / div >
< div class = "line" > < a name = "l02635" > < / a > < span class = "lineno" > 2635< / span >   < span class = "comment" > // constraint will be at its upper bound, and the corresponding slack< / span > < / div >
< div class = "line" > < a name = "l02636" > < / a > < span class = "lineno" > 2636< / span >   < span class = "comment" > // condition is that the dual value needs to be < = 0.< / span > < / div >
< div class = "line" > < a name = "l02637" > < / a > < span class = "lineno" > 2637< / span >   lp-> SetVariableBounds(e.col, lp-> variable_lower_bounds()[e.col], < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l02638" > < / a > < span class = "lineno" > 2638< / span >   }< / div >
< div class = "line" > < a name = "l02639" > < / a > < span class = "lineno" > 2639< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > > 0.0 & & < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (< / div >
< div class = "line" > < a name = "l02640" > < / a > < span class = "lineno" > 2640< / span >   lp-> variable_lower_bounds()[e.col], lb)) {< / div >
< div class = "line" > < a name = "l02641" > < / a > < span class = "lineno" > 2641< / span >   < span class = "keywordflow" > if< / span > (e.coeff > 0) {< / div >
< div class = "line" > < a name = "l02642" > < / a > < span class = "lineno" > 2642< / span >   < span class = "keywordflow" > if< / span > (cst_lower_bound == -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l02643" > < / a > < span class = "lineno" > 2643< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::INFEASIBLE_OR_UNBOUNDED;< / div >
< div class = "line" > < a name = "l02644" > < / a > < span class = "lineno" > 2644< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02645" > < / a > < span class = "lineno" > 2645< / span >   relaxed_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02646" > < / a > < span class = "lineno" > 2646< / span >   lp-> SetConstraintBounds(e.row, cst_lower_bound, cst_lower_bound);< / div >
< div class = "line" > < a name = "l02647" > < / a > < span class = "lineno" > 2647< / span >   }< / div >
< div class = "line" > < a name = "l02648" > < / a > < span class = "lineno" > 2648< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02649" > < / a > < span class = "lineno" > 2649< / span >   < span class = "keywordflow" > if< / span > (cst_upper_bound == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l02650" > < / a > < span class = "lineno" > 2650< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = ProblemStatus::INFEASIBLE_OR_UNBOUNDED;< / div >
< div class = "line" > < a name = "l02651" > < / a > < span class = "lineno" > 2651< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02652" > < / a > < span class = "lineno" > 2652< / span >   relaxed_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02653" > < / a > < span class = "lineno" > 2653< / span >   lp-> SetConstraintBounds(e.row, cst_upper_bound, cst_upper_bound);< / div >
< div class = "line" > < a name = "l02654" > < / a > < span class = "lineno" > 2654< / span >   }< / div >
< div class = "line" > < a name = "l02655" > < / a > < span class = "lineno" > 2655< / span >   }< / div >
< div class = "line" > < a name = "l02656" > < / a > < span class = "lineno" > 2656< / span >   < / div >
< div class = "line" > < a name = "l02657" > < / a > < span class = "lineno" > 2657< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > == ProblemStatus::INFEASIBLE_OR_UNBOUNDED) {< / div >
< div class = "line" > < a name = "l02658" > < / a > < span class = "lineno" > 2658< / span >   DCHECK_EQ(lb, -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > );< / div >
< div class = "line" > < a name = "l02659" > < / a > < span class = "lineno" > 2659< / span >   VLOG(1) < < < span class = "stringliteral" > " Problem ProblemStatus::INFEASIBLE_OR_UNBOUNDED, singleton " < / span > < / div >
< div class = "line" > < a name = "l02660" > < / a > < span class = "lineno" > 2660< / span >   < span class = "stringliteral" > " variable " < / span > < / div >
< div class = "line" > < a name = "l02661" > < / a > < span class = "lineno" > 2661< / span >   < < e.col < < < span class = "stringliteral" > " has a cost (for minimization) of " < / span > < < < a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > < / div >
< div class = "line" > < a name = "l02662" > < / a > < span class = "lineno" > 2662< / span >   < < < span class = "stringliteral" > " and is unbounded towards -kInfinity." < / span > ;< / div >
< div class = "line" > < a name = "l02663" > < / a > < span class = "lineno" > 2663< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02664" > < / a > < span class = "lineno" > 2664< / span >   }< / div >
< div class = "line" > < a name = "l02665" > < / a > < span class = "lineno" > 2665< / span >   < / div >
< div class = "line" > < a name = "l02666" > < / a > < span class = "lineno" > 2666< / span >   < span class = "comment" > // Same remark as above for a lower bounded variable this time.< / span > < / div >
< div class = "line" > < a name = "l02667" > < / a > < span class = "lineno" > 2667< / span >   lp-> SetVariableBounds(e.col, -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ,< / div >
< div class = "line" > < a name = "l02668" > < / a > < span class = "lineno" > 2668< / span >   lp-> variable_upper_bounds()[e.col]);< / div >
< div class = "line" > < a name = "l02669" > < / a > < span class = "lineno" > 2669< / span >   }< / div >
< div class = "line" > < a name = "l02670" > < / a > < span class = "lineno" > 2670< / span >   < / div >
< div class = "line" > < a name = "l02671" > < / a > < span class = "lineno" > 2671< / span >   < span class = "keywordflow" > if< / span > (lp-> constraint_lower_bounds()[e.row] ==< / div >
< div class = "line" > < a name = "l02672" > < / a > < span class = "lineno" > 2672< / span >   lp-> constraint_upper_bounds()[e.row]) {< / div >
< div class = "line" > < a name = "l02673" > < / a > < span class = "lineno" > 2673< / span >   undo_stack_.push_back(SingletonUndo(< / div >
< div class = "line" > < a name = "l02674" > < / a > < span class = "lineno" > 2674< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a629106ec8d53390d18c3f330156486ec" > SingletonUndo::MAKE_CONSTRAINT_AN_EQUALITY< / a > , *lp, e, relaxed_status));< / div >
< div class = "line" > < a name = "l02675" > < / a > < span class = "lineno" > 2675< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l02676" > < / a > < span class = "lineno" > 2676< / span >   }< / div >
< div class = "line" > < a name = "l02677" > < / a > < span class = "lineno" > 2677< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02678" > < / a > < span class = "lineno" > 2678< / span >   }< / div >
< div class = "line" > < a name = "l02679" > < / a > < span class = "lineno" > 2679< / span >   < / div >
< div class = "line" > < a name = "l02680" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_singleton_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 2680< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > SingletonPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l02681" > < / a > < span class = "lineno" > 2681< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l02682" > < / a > < span class = "lineno" > 2682< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l02683" > < / a > < span class = "lineno" > 2683< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > SparseMatrix< / a > & matrix = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a33b78d7012477c55f395aaf92ca6e9f4" > GetSparseMatrix< / a > ();< / div >
< div class = "line" > < a name = "l02684" > < / a > < span class = "lineno" > 2684< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > SparseMatrix< / a > & transpose = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a2175025047722705a3af86e54229f9cd" > GetTransposeSparseMatrix< / a > ();< / div >
< div class = "line" > < a name = "l02685" > < / a > < span class = "lineno" > 2685< / span >   < / div >
< div class = "line" > < a name = "l02686" > < / a > < span class = "lineno" > 2686< / span >   < span class = "comment" > // Initialize column_to_process with the current singleton columns.< / span > < / div >
< div class = "line" > < a name = "l02687" > < / a > < span class = "lineno" > 2687< / span >   ColIndex num_cols(matrix.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a41741829541d089f1c4d34f190884813" > num_cols< / a > ());< / div >
< div class = "line" > < a name = "l02688" > < / a > < span class = "lineno" > 2688< / span >   RowIndex num_rows(matrix.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a960110e64357a3e69162ebf1f71959dd" > num_rows< / a > ());< / div >
< div class = "line" > < a name = "l02689" > < / a > < span class = "lineno" > 2689< / span >   deleted_columns_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#ae1b90982a83e1b025ebbc1c446980640" > PopulateFromZero< / a > (num_rows, num_cols);< / div >
< div class = "line" > < a name = "l02690" > < / a > < span class = "lineno" > 2690< / span >   deleted_rows_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#ae1b90982a83e1b025ebbc1c446980640" > PopulateFromZero< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#ab65a327cfc2a74c15fa26b91f19acc64" > ColToRowIndex< / a > (num_cols),< / div >
< div class = "line" > < a name = "l02691" > < / a > < span class = "lineno" > 2691< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (num_rows));< / div >
< div class = "line" > < a name = "l02692" > < / a > < span class = "lineno" > 2692< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > StrictITIVector< ColIndex, EntryIndex> < / a > column_degree(num_cols, EntryIndex(0));< / div >
< div class = "line" > < a name = "l02693" > < / a > < span class = "lineno" > 2693< / span >   std::vector< ColIndex> column_to_process;< / div >
< div class = "line" > < a name = "l02694" > < / a > < span class = "lineno" > 2694< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l02695" > < / a > < span class = "lineno" > 2695< / span >   column_degree[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = matrix.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ).< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > ();< / div >
< div class = "line" > < a name = "l02696" > < / a > < span class = "lineno" > 2696< / span >   < span class = "keywordflow" > if< / span > (column_degree[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == 1) {< / div >
< div class = "line" > < a name = "l02697" > < / a > < span class = "lineno" > 2697< / span >   column_to_process.push_back(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l02698" > < / a > < span class = "lineno" > 2698< / span >   }< / div >
< div class = "line" > < a name = "l02699" > < / a > < span class = "lineno" > 2699< / span >   }< / div >
< div class = "line" > < a name = "l02700" > < / a > < span class = "lineno" > 2700< / span >   < / div >
< div class = "line" > < a name = "l02701" > < / a > < span class = "lineno" > 2701< / span >   < span class = "comment" > // Initialize row_to_process with the current singleton rows.< / span > < / div >
< div class = "line" > < a name = "l02702" > < / a > < span class = "lineno" > 2702< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > StrictITIVector< RowIndex, EntryIndex> < / a > row_degree(num_rows, EntryIndex(0));< / div >
< div class = "line" > < a name = "l02703" > < / a > < span class = "lineno" > 2703< / span >   std::vector< RowIndex> row_to_process;< / div >
< div class = "line" > < a name = "l02704" > < / a > < span class = "lineno" > 2704< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l02705" > < / a > < span class = "lineno" > 2705< / span >   row_degree[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = transpose.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > )).< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > ();< / div >
< div class = "line" > < a name = "l02706" > < / a > < span class = "lineno" > 2706< / span >   < span class = "keywordflow" > if< / span > (row_degree[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == 1) {< / div >
< div class = "line" > < a name = "l02707" > < / a > < span class = "lineno" > 2707< / span >   row_to_process.push_back(< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l02708" > < / a > < span class = "lineno" > 2708< / span >   }< / div >
< div class = "line" > < a name = "l02709" > < / a > < span class = "lineno" > 2709< / span >   }< / div >
< div class = "line" > < a name = "l02710" > < / a > < span class = "lineno" > 2710< / span >   < / div >
< div class = "line" > < a name = "l02711" > < / a > < span class = "lineno" > 2711< / span >   < span class = "comment" > // Process current singleton rows/columns and enqueue new ones.< / span > < / div >
< div class = "line" > < a name = "l02712" > < / a > < span class = "lineno" > 2712< / span >   < span class = "keywordflow" > while< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > ProblemStatus::INIT< / a > & & < / div >
< div class = "line" > < a name = "l02713" > < / a > < span class = "lineno" > 2713< / span >   (!column_to_process.empty() || !row_to_process.empty())) {< / div >
< div class = "line" > < a name = "l02714" > < / a > < span class = "lineno" > 2714< / span >   < span class = "keywordflow" > while< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > ProblemStatus::INIT< / a > & & !column_to_process.empty()) {< / div >
< div class = "line" > < a name = "l02715" > < / a > < span class = "lineno" > 2715< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = column_to_process.back();< / div >
< div class = "line" > < a name = "l02716" > < / a > < span class = "lineno" > 2716< / span >   column_to_process.pop_back();< / div >
< div class = "line" > < a name = "l02717" > < / a > < span class = "lineno" > 2717< / span >   < span class = "keywordflow" > if< / span > (column_degree[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] < = 0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02718" > < / a > < span class = "lineno" > 2718< / span >   < span class = "keyword" > const< / span > MatrixEntry e = GetSingletonColumnMatrixEntry(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , matrix);< / div >
< div class = "line" > < a name = "l02719" > < / a > < span class = "lineno" > 2719< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a3ad0a2aeb2c7f12fb9d3439a480ffbde" > in_mip_context_< / a > & & lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ab4f3103f39bdbb86151baed2347f7b0a" > IsVariableInteger< / a > (e.col) & & < / div >
< div class = "line" > < a name = "l02720" > < / a > < span class = "lineno" > 2720< / span >   !IntegerSingletonColumnIsRemovable(e, *lp)) {< / div >
< div class = "line" > < a name = "l02721" > < / a > < span class = "lineno" > 2721< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02722" > < / a > < span class = "lineno" > 2722< / span >   }< / div >
< div class = "line" > < a name = "l02723" > < / a > < span class = "lineno" > 2723< / span >   < / div >
< div class = "line" > < a name = "l02724" > < / a > < span class = "lineno" > 2724< / span >   < span class = "comment" > // TODO(user): It seems better to process all the singleton columns with< / span > < / div >
< div class = "line" > < a name = "l02725" > < / a > < span class = "lineno" > 2725< / span >   < span class = "comment" > // a cost of zero first.< / span > < / div >
< div class = "line" > < a name = "l02726" > < / a > < span class = "lineno" > 2726< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] == 0.0) {< / div >
< div class = "line" > < a name = "l02727" > < / a > < span class = "lineno" > 2727< / span >   DeleteZeroCostSingletonColumn(transpose, e, lp);< / div >
< div class = "line" > < a name = "l02728" > < / a > < span class = "lineno" > 2728< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (MakeConstraintAnEqualityIfPossible(transpose, e, lp)) {< / div >
< div class = "line" > < a name = "l02729" > < / a > < span class = "lineno" > 2729< / span >   DeleteSingletonColumnInEquality(transpose, e, lp);< / div >
< div class = "line" > < a name = "l02730" > < / a > < span class = "lineno" > 2730< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l02731" > < / a > < span class = "lineno" > 2731< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02732" > < / a > < span class = "lineno" > 2732< / span >   }< / div >
< div class = "line" > < a name = "l02733" > < / a > < span class = "lineno" > 2733< / span >   --row_degree[e.row];< / div >
< div class = "line" > < a name = "l02734" > < / a > < span class = "lineno" > 2734< / span >   < span class = "keywordflow" > if< / span > (row_degree[e.row] == 1) {< / div >
< div class = "line" > < a name = "l02735" > < / a > < span class = "lineno" > 2735< / span >   row_to_process.push_back(e.row);< / div >
< div class = "line" > < a name = "l02736" > < / a > < span class = "lineno" > 2736< / span >   }< / div >
< div class = "line" > < a name = "l02737" > < / a > < span class = "lineno" > 2737< / span >   }< / div >
< div class = "line" > < a name = "l02738" > < / a > < span class = "lineno" > 2738< / span >   < span class = "keywordflow" > while< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > ProblemStatus::INIT< / a > & & !row_to_process.empty()) {< / div >
< div class = "line" > < a name = "l02739" > < / a > < span class = "lineno" > 2739< / span >   < span class = "keyword" > const< / span > RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = row_to_process.back();< / div >
< div class = "line" > < a name = "l02740" > < / a > < span class = "lineno" > 2740< / span >   row_to_process.pop_back();< / div >
< div class = "line" > < a name = "l02741" > < / a > < span class = "lineno" > 2741< / span >   < span class = "keywordflow" > if< / span > (row_degree[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] < = 0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02742" > < / a > < span class = "lineno" > 2742< / span >   < span class = "keyword" > const< / span > MatrixEntry e = GetSingletonRowMatrixEntry(< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > , transpose);< / div >
< div class = "line" > < a name = "l02743" > < / a > < span class = "lineno" > 2743< / span >   < / div >
< div class = "line" > < a name = "l02744" > < / a > < span class = "lineno" > 2744< / span >   DeleteSingletonRow(e, lp);< / div >
< div class = "line" > < a name = "l02745" > < / a > < span class = "lineno" > 2745< / span >   --column_degree[e.col];< / div >
< div class = "line" > < a name = "l02746" > < / a > < span class = "lineno" > 2746< / span >   < span class = "keywordflow" > if< / span > (column_degree[e.col] == 1) {< / div >
< div class = "line" > < a name = "l02747" > < / a > < span class = "lineno" > 2747< / span >   column_to_process.push_back(e.col);< / div >
< div class = "line" > < a name = "l02748" > < / a > < span class = "lineno" > 2748< / span >   }< / div >
< div class = "line" > < a name = "l02749" > < / a > < span class = "lineno" > 2749< / span >   }< / div >
< div class = "line" > < a name = "l02750" > < / a > < span class = "lineno" > 2750< / span >   }< / div >
< div class = "line" > < a name = "l02751" > < / a > < span class = "lineno" > 2751< / span >   < / div >
< div class = "line" > < a name = "l02752" > < / a > < span class = "lineno" > 2752< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > != < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > ProblemStatus::INIT< / a > ) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02753" > < / a > < span class = "lineno" > 2753< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac59fd9cddfe284bf9dc7581ed631ce8d" > DeleteColumns< / a > (column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a6afccf8c0c7105ba45b8d7bd47830239" > GetMarkedColumns< / a > ());< / div >
< div class = "line" > < a name = "l02754" > < / a > < span class = "lineno" > 2754< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac220cc5563c65b821d9d043010bb2121" > DeleteRows< / a > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a4dda252e2b65e3aa074c002daf6f86b8" > GetMarkedRows< / a > ());< / div >
< div class = "line" > < a name = "l02755" > < / a > < span class = "lineno" > 2755< / span >   < span class = "keywordflow" > return< / span > !column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > () || !row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ();< / div >
< div class = "line" > < a name = "l02756" > < / a > < span class = "lineno" > 2756< / span >   }< / div >
< div class = "line" > < a name = "l02757" > < / a > < span class = "lineno" > 2757< / span >   < / div >
< div class = "line" > < a name = "l02758" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_singleton_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 2758< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > SingletonPreprocessor::RecoverSolution< / a > (< a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l02759" > < / a > < span class = "lineno" > 2759< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l02760" > < / a > < span class = "lineno" > 2760< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
< div class = "line" > < a name = "l02761" > < / a > < span class = "lineno" > 2761< / span >   < / div >
< div class = "line" > < a name = "l02762" > < / a > < span class = "lineno" > 2762< / span >   < span class = "comment" > // Note that the two deletion helpers must restore 0.0 values in the positions< / span > < / div >
< div class = "line" > < a name = "l02763" > < / a > < span class = "lineno" > 2763< / span >   < span class = "comment" > // that will be used during Undo(). That is, all the calls done by this class< / span > < / div >
< div class = "line" > < a name = "l02764" > < / a > < span class = "lineno" > 2764< / span >   < span class = "comment" > // to MarkColumnForDeletion() should be done with 0.0 as the value to restore< / span > < / div >
< div class = "line" > < a name = "l02765" > < / a > < span class = "lineno" > 2765< / span >   < span class = "comment" > // (which is already the case when using MarkRowForDeletion()).< / span > < / div >
< div class = "line" > < a name = "l02766" > < / a > < span class = "lineno" > 2766< / span >   < span class = "comment" > // This is important because the various Undo() functions assume that a< / span > < / div >
< div class = "line" > < a name = "l02767" > < / a > < span class = "lineno" > 2767< / span >   < span class = "comment" > // primal/dual variable value which isn' t restored yet has the value of 0.0.< / span > < / div >
< div class = "line" > < a name = "l02768" > < / a > < span class = "lineno" > 2768< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#ab73f53154d99b3cd13dae72fd418985d" > RestoreDeletedColumns< / a > (solution);< / div >
< div class = "line" > < a name = "l02769" > < / a > < span class = "lineno" > 2769< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a43e3b399f53b38b75171071c9d730c5b" > RestoreDeletedRows< / a > (solution);< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02770" > < / a > < span class = "lineno" > 2770< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02771" > < / a > < span class = "lineno" > 2771< / span >   < span class = "comment" > // It is important to undo the operations in the correct order, i.e. in the< / span > < / div >
< div class = "line" > < a name = "l02772" > < / a > < span class = "lineno" > 2772< / span >   < span class = "comment" > // reverse order in which they were done.< / span > < / div >
< div class = "line" > < a name = "l02773" > < / a > < span class = "lineno" > 2773< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = undo_stack_.size() - 1; i > = 0; --i) {< / div >
< div class = "line" > < a name = "l02774" > < / a > < span class = "lineno" > 2774< / span >   undo_stack_[i].Undo(< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > , deleted_columns_, deleted_rows_, solution);< / div >
< div class = "line" > < a name = "l02775" > < / a > < span class = "lineno" > 2775< / span >   }< / div >
< div class = "line" > < a name = "l02776" > < / a > < span class = "lineno" > 2776< / span >   }< / div >
< div class = "line" > < a name = "l02777" > < / a > < span class = "lineno" > 2777< / span >   < / div >
< div class = "line" > < a name = "l02778" > < / a > < span class = "lineno" > 2778< / span >   MatrixEntry SingletonPreprocessor::GetSingletonColumnMatrixEntry(< / div >
< div class = "line" > < a name = "l02779" > < / a > < span class = "lineno" > 2779< / span >   ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > SparseMatrix< / a > & matrix) {< / div >
< div class = "line" > < a name = "l02780" > < / a > < span class = "lineno" > 2780< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : matrix.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
< div class = "line" > < a name = "l02781" > < / a > < span class = "lineno" > 2781< / span >   < span class = "keywordflow" > if< / span > (!row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8b572400ae17e537ba55eb01667dd5c7" > IsRowMarked< / a > (e.row())) {< / div >
< div class = "line" > < a name = "l02782" > < / a > < span class = "lineno" > 2782< / span >   DCHECK_NE(0.0, e.coefficient());< / div >
< div class = "line" > < a name = "l02783" > < / a > < span class = "lineno" > 2783< / span >   < span class = "keywordflow" > return< / span > MatrixEntry(e.row(), < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , e.coefficient());< / div >
< div class = "line" > < a name = "l02784" > < / a > < span class = "lineno" > 2784< / span >   }< / div >
< div class = "line" > < a name = "l02785" > < / a > < span class = "lineno" > 2785< / span >   }< / div >
< div class = "line" > < a name = "l02786" > < / a > < span class = "lineno" > 2786< / span >   < span class = "comment" > // This shouldn' t happen.< / span > < / div >
< div class = "line" > < a name = "l02787" > < / a > < span class = "lineno" > 2787< / span >   LOG(DFATAL) < < < span class = "stringliteral" > " No unmarked entry in a column that is supposed to have one." < / span > ;< / div >
< div class = "line" > < a name = "l02788" > < / a > < span class = "lineno" > 2788< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a88ec4386a3c49b50819358a579fb9adb" > ProblemStatus::ABNORMAL< / a > ;< / div >
< div class = "line" > < a name = "l02789" > < / a > < span class = "lineno" > 2789< / span >   < span class = "keywordflow" > return< / span > MatrixEntry(RowIndex(0), ColIndex(0), 0.0);< / div >
< div class = "line" > < a name = "l02790" > < / a > < span class = "lineno" > 2790< / span >   }< / div >
< div class = "line" > < a name = "l02791" > < / a > < span class = "lineno" > 2791< / span >   < / div >
< div class = "line" > < a name = "l02792" > < / a > < span class = "lineno" > 2792< / span >   MatrixEntry SingletonPreprocessor::GetSingletonRowMatrixEntry(< / div >
< div class = "line" > < a name = "l02793" > < / a > < span class = "lineno" > 2793< / span >   RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > , < span class = "keyword" > const< / span > SparseMatrix& transpose) {< / div >
< div class = "line" > < a name = "l02794" > < / a > < span class = "lineno" > 2794< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : transpose.column(< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ))) {< / div >
< div class = "line" > < a name = "l02795" > < / a > < span class = "lineno" > 2795< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e.row());< / div >
< div class = "line" > < a name = "l02796" > < / a > < span class = "lineno" > 2796< / span >   < span class = "keywordflow" > if< / span > (!column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a1fbdcd623d96ea5e73d664ce0c6bd002" > IsColumnMarked< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
< div class = "line" > < a name = "l02797" > < / a > < span class = "lineno" > 2797< / span >   DCHECK_NE(0.0, e.coefficient());< / div >
< div class = "line" > < a name = "l02798" > < / a > < span class = "lineno" > 2798< / span >   < span class = "keywordflow" > return< / span > MatrixEntry(< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > , < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , e.coefficient());< / div >
< div class = "line" > < a name = "l02799" > < / a > < span class = "lineno" > 2799< / span >   }< / div >
< div class = "line" > < a name = "l02800" > < / a > < span class = "lineno" > 2800< / span >   }< / div >
< div class = "line" > < a name = "l02801" > < / a > < span class = "lineno" > 2801< / span >   < span class = "comment" > // This shouldn' t happen.< / span > < / div >
< div class = "line" > < a name = "l02802" > < / a > < span class = "lineno" > 2802< / span >   LOG(DFATAL) < < < span class = "stringliteral" > " No unmarked entry in a row that is supposed to have one." < / span > ;< / div >
< div class = "line" > < a name = "l02803" > < / a > < span class = "lineno" > 2803< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a88ec4386a3c49b50819358a579fb9adb" > ProblemStatus::ABNORMAL< / a > ;< / div >
< div class = "line" > < a name = "l02804" > < / a > < span class = "lineno" > 2804< / span >   < span class = "keywordflow" > return< / span > MatrixEntry(RowIndex(0), ColIndex(0), 0.0);< / div >
< div class = "line" > < a name = "l02805" > < / a > < span class = "lineno" > 2805< / span >   }< / div >
< div class = "line" > < a name = "l02806" > < / a > < span class = "lineno" > 2806< / span >   < / div >
< div class = "line" > < a name = "l02807" > < / a > < span class = "lineno" > 2807< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l02808" > < / a > < span class = "lineno" > 2808< / span >   < span class = "comment" > // RemoveNearZeroEntriesPreprocessor< / span > < / div >
< div class = "line" > < a name = "l02809" > < / a > < span class = "lineno" > 2809< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l02810" > < / a > < span class = "lineno" > 2810< / span >   < / div >
< div class = "line" > < a name = "l02811" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_remove_near_zero_entries_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 2811< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_remove_near_zero_entries_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > RemoveNearZeroEntriesPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l02812" > < / a > < span class = "lineno" > 2812< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l02813" > < / a > < span class = "lineno" > 2813< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l02814" > < / a > < span class = "lineno" > 2814< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
< div class = "line" > < a name = "l02815" > < / a > < span class = "lineno" > 2815< / span >   < span class = "keywordflow" > if< / span > (num_cols == 0) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02816" > < / a > < span class = "lineno" > 2816< / span >   < / div >
< div class = "line" > < a name = "l02817" > < / a > < span class = "lineno" > 2817< / span >   < span class = "comment" > // We will use a different threshold for each row depending on its degree.< / span > < / div >
< div class = "line" > < a name = "l02818" > < / a > < span class = "lineno" > 2818< / span >   < span class = "comment" > // We use Fractionals for convenience since they will be used as such below.< / span > < / div >
< div class = "line" > < a name = "l02819" > < / a > < span class = "lineno" > 2819< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ();< / div >
< div class = "line" > < a name = "l02820" > < / a > < span class = "lineno" > 2820< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseColumn< / a > row_degree(num_rows, 0.0);< / div >
< div class = "line" > < a name = "l02821" > < / a > < span class = "lineno" > 2821< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > num_non_zero_objective_coefficients = 0.0;< / div >
< div class = "line" > < a name = "l02822" > < / a > < span class = "lineno" > 2822< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l02823" > < / a > < span class = "lineno" > 2823< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
< div class = "line" > < a name = "l02824" > < / a > < span class = "lineno" > 2824< / span >   row_degree[e.row()] += 1.0;< / div >
< div class = "line" > < a name = "l02825" > < / a > < span class = "lineno" > 2825< / span >   }< / div >
< div class = "line" > < a name = "l02826" > < / a > < span class = "lineno" > 2826< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != 0.0) {< / div >
< div class = "line" > < a name = "l02827" > < / a > < span class = "lineno" > 2827< / span >   num_non_zero_objective_coefficients += 1.0;< / div >
< div class = "line" > < a name = "l02828" > < / a > < span class = "lineno" > 2828< / span >   }< / div >
< div class = "line" > < a name = "l02829" > < / a > < span class = "lineno" > 2829< / span >   }< / div >
< div class = "line" > < a name = "l02830" > < / a > < span class = "lineno" > 2830< / span >   < / div >
< div class = "line" > < a name = "l02831" > < / a > < span class = "lineno" > 2831< / span >   < span class = "comment" > // To not have too many parameters, we use the preprocessor_zero_tolerance.< / span > < / div >
< div class = "line" > < a name = "l02832" > < / a > < span class = "lineno" > 2832< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > allowed_impact = < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .preprocessor_zero_tolerance();< / div >
< div class = "line" > < a name = "l02833" > < / a > < span class = "lineno" > 2833< / span >   < / div >
< div class = "line" > < a name = "l02834" > < / a > < span class = "lineno" > 2834< / span >   < span class = "comment" > // TODO(user): Our criteria ensure that during presolve a primal feasible< / span > < / div >
< div class = "line" > < a name = "l02835" > < / a > < span class = "lineno" > 2835< / span >   < span class = "comment" > // solution will stay primal feasible. However, we have no guarantee on the< / span > < / div >
< div class = "line" > < a name = "l02836" > < / a > < span class = "lineno" > 2836< / span >   < span class = "comment" > // dual-feasibility (because the dual variable values range is not taken into< / span > < / div >
< div class = "line" > < a name = "l02837" > < / a > < span class = "lineno" > 2837< / span >   < span class = "comment" > // account). Fix that? or find a better criteria since it seems that on all< / span > < / div >
< div class = "line" > < a name = "l02838" > < / a > < span class = "lineno" > 2838< / span >   < span class = "comment" > // our current problems, this preprocessor helps and doesn' t introduce errors.< / span > < / div >
< div class = "line" > < a name = "l02839" > < / a > < span class = "lineno" > 2839< / span >   < span class = "keyword" > const< / span > EntryIndex initial_num_entries = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > ();< / div >
< div class = "line" > < a name = "l02840" > < / a > < span class = "lineno" > 2840< / span >   < span class = "keywordtype" > int< / span > num_zeroed_objective_coefficients = 0;< / div >
< div class = "line" > < a name = "l02841" > < / a > < span class = "lineno" > 2841< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l02842" > < / a > < span class = "lineno" > 2842< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l02843" > < / a > < span class = "lineno" > 2843< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02844" > < / a > < span class = "lineno" > 2844< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02845" > < / a > < span class = "lineno" > 2845< / span >   < span class = "comment" > // TODO(user): Write a small class that takes a matrix, its transpose, row< / span > < / div >
< div class = "line" > < a name = "l02846" > < / a > < span class = "lineno" > 2846< / span >   < span class = "comment" > // and column bounds, and " propagate" the bounds as much as possible so we< / span > < / div >
< div class = "line" > < a name = "l02847" > < / a > < span class = "lineno" > 2847< / span >   < span class = "comment" > // can use this better estimate here and remove more near-zero entries.< / span > < / div >
< div class = "line" > < a name = "l02848" > < / a > < span class = "lineno" > 2848< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > max_magnitude =< / div >
< div class = "line" > < a name = "l02849" > < / a > < span class = "lineno" > 2849< / span >   < a class = "code" href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > std::max< / a > (std::abs(lower_bound), std::abs(upper_bound));< / div >
< div class = "line" > < a name = "l02850" > < / a > < span class = "lineno" > 2850< / span >   < span class = "keywordflow" > if< / span > (max_magnitude == < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > || max_magnitude == 0) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02851" > < / a > < span class = "lineno" > 2851< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > threshold = allowed_impact / max_magnitude;< / div >
< div class = "line" > < a name = "l02852" > < / a > < span class = "lineno" > 2852< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a88cc1c4519b043336ce23cdcec5fb0c2" > GetMutableSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a5b9746c75f781968b2f21e2e5701cd84" > RemoveNearZeroEntriesWithWeights< / a > (< / div >
< div class = "line" > < a name = "l02853" > < / a > < span class = "lineno" > 2853< / span >   threshold, row_degree);< / div >
< div class = "line" > < a name = "l02854" > < / a > < span class = "lineno" > 2854< / span >   < / div >
< div class = "line" > < a name = "l02855" > < / a > < span class = "lineno" > 2855< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != 0.0 & & < / div >
< div class = "line" > < a name = "l02856" > < / a > < span class = "lineno" > 2856< / span >   num_non_zero_objective_coefficients *< / div >
< div class = "line" > < a name = "l02857" > < / a > < span class = "lineno" > 2857< / span >   std::abs(lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) < < / div >
< div class = "line" > < a name = "l02858" > < / a > < span class = "lineno" > 2858< / span >   threshold) {< / div >
< div class = "line" > < a name = "l02859" > < / a > < span class = "lineno" > 2859< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9" > SetObjectiveCoefficient< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , 0.0);< / div >
< div class = "line" > < a name = "l02860" > < / a > < span class = "lineno" > 2860< / span >   ++num_zeroed_objective_coefficients;< / div >
< div class = "line" > < a name = "l02861" > < / a > < span class = "lineno" > 2861< / span >   }< / div >
< div class = "line" > < a name = "l02862" > < / a > < span class = "lineno" > 2862< / span >   }< / div >
< div class = "line" > < a name = "l02863" > < / a > < span class = "lineno" > 2863< / span >   < / div >
< div class = "line" > < a name = "l02864" > < / a > < span class = "lineno" > 2864< / span >   < span class = "keyword" > const< / span > EntryIndex < a class = "code" href = "preprocessor_8cc.html#a2babe18010525bbf13c2fa5a959971e4" > num_entries< / a > = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > ();< / div >
< div class = "line" > < a name = "l02865" > < / a > < span class = "lineno" > 2865< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "preprocessor_8cc.html#a2babe18010525bbf13c2fa5a959971e4" > num_entries< / a > != initial_num_entries) {< / div >
< div class = "line" > < a name = "l02866" > < / a > < span class = "lineno" > 2866< / span >   VLOG(1) < < < span class = "stringliteral" > " Removed " < / span > < < initial_num_entries - < a class = "code" href = "preprocessor_8cc.html#a2babe18010525bbf13c2fa5a959971e4" > num_entries< / a > < / div >
< div class = "line" > < a name = "l02867" > < / a > < span class = "lineno" > 2867< / span >   < < < span class = "stringliteral" > " near-zero entries." < / span > ;< / div >
< div class = "line" > < a name = "l02868" > < / a > < span class = "lineno" > 2868< / span >   }< / div >
< div class = "line" > < a name = "l02869" > < / a > < span class = "lineno" > 2869< / span >   < span class = "keywordflow" > if< / span > (num_zeroed_objective_coefficients > 0) {< / div >
< div class = "line" > < a name = "l02870" > < / a > < span class = "lineno" > 2870< / span >   VLOG(1) < < < span class = "stringliteral" > " Removed " < / span > < < num_zeroed_objective_coefficients< / div >
< div class = "line" > < a name = "l02871" > < / a > < span class = "lineno" > 2871< / span >   < < < span class = "stringliteral" > " near-zero objective coefficients." < / span > ;< / div >
< div class = "line" > < a name = "l02872" > < / a > < span class = "lineno" > 2872< / span >   }< / div >
< div class = "line" > < a name = "l02873" > < / a > < span class = "lineno" > 2873< / span >   < / div >
< div class = "line" > < a name = "l02874" > < / a > < span class = "lineno" > 2874< / span >   < span class = "comment" > // No post-solve is required.< / span > < / div >
< div class = "line" > < a name = "l02875" > < / a > < span class = "lineno" > 2875< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l02876" > < / a > < span class = "lineno" > 2876< / span >   }< / div >
< div class = "line" > < a name = "l02877" > < / a > < span class = "lineno" > 2877< / span >   < / div >
< div class = "line" > < a name = "l02878" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_remove_near_zero_entries_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 2878< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_remove_near_zero_entries_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > RemoveNearZeroEntriesPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l02879" > < / a > < span class = "lineno" > 2879< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {}< / div >
< div class = "line" > < a name = "l02880" > < / a > < span class = "lineno" > 2880< / span >   < / div >
< div class = "line" > < a name = "l02881" > < / a > < span class = "lineno" > 2881< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l02882" > < / a > < span class = "lineno" > 2882< / span >   < span class = "comment" > // SingletonColumnSignPreprocessor< / span > < / div >
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< div class = "line" > < a name = "l02883" > < / a > < span class = "lineno" > 2883< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
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< div class = "line" > < a name = "l02884" > < / a > < span class = "lineno" > 2884< / span >   < / div >
< div class = "line" > < a name = "l02885" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_singleton_column_sign_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 2885< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_column_sign_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > SingletonColumnSignPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l02886" > < / a > < span class = "lineno" > 2886< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l02887" > < / a > < span class = "lineno" > 2887< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l02888" > < / a > < span class = "lineno" > 2888< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
< div class = "line" > < a name = "l02889" > < / a > < span class = "lineno" > 2889< / span >   < span class = "keywordflow" > if< / span > (num_cols == 0) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l02890" > < / a > < span class = "lineno" > 2890< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l02891" > < / a > < span class = "lineno" > 2891< / span >   changed_columns_.clear();< / div >
< div class = "line" > < a name = "l02892" > < / a > < span class = "lineno" > 2892< / span >   < span class = "keywordtype" > int< / span > num_singletons = 0;< / div >
< div class = "line" > < a name = "l02893" > < / a > < span class = "lineno" > 2893< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l02894" > < / a > < span class = "lineno" > 2894< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_column.html" > SparseColumn< / a > * sparse_column = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a88cc1c4519b043336ce23cdcec5fb0c2" > GetMutableSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l02895" > < / a > < span class = "lineno" > 2895< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l02896" > < / a > < span class = "lineno" > 2896< / span >   < span class = "keywordflow" > if< / span > (sparse_column-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > () == 1) {< / div >
< div class = "line" > < a name = "l02897" > < / a > < span class = "lineno" > 2897< / span >   ++num_singletons;< / div >
< div class = "line" > < a name = "l02898" > < / a > < span class = "lineno" > 2898< / span >   }< / div >
< div class = "line" > < a name = "l02899" > < / a > < span class = "lineno" > 2899< / span >   < span class = "keywordflow" > if< / span > (sparse_column-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > () == 1 & & < / div >
< div class = "line" > < a name = "l02900" > < / a > < span class = "lineno" > 2900< / span >   sparse_column-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ae7c152aafe19515204c65dadcdc876d6" > GetFirstCoefficient< / a > () < 0) {< / div >
< div class = "line" > < a name = "l02901" > < / a > < span class = "lineno" > 2901< / span >   sparse_column-> < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a997af931ec11394cec3418321c2ecc4b" > MultiplyByConstant< / a > (-1.0);< / div >
< div class = "line" > < a name = "l02902" > < / a > < span class = "lineno" > 2902< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093" > SetVariableBounds< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , -lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ],< / div >
< div class = "line" > < a name = "l02903" > < / a > < span class = "lineno" > 2903< / span >   -lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
< div class = "line" > < a name = "l02904" > < / a > < span class = "lineno" > 2904< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9" > SetObjectiveCoefficient< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , -< a class = "code" href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > );< / div >
< div class = "line" > < a name = "l02905" > < / a > < span class = "lineno" > 2905< / span >   changed_columns_.push_back(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l02906" > < / a > < span class = "lineno" > 2906< / span >   }< / div >
< div class = "line" > < a name = "l02907" > < / a > < span class = "lineno" > 2907< / span >   }< / div >
< div class = "line" > < a name = "l02908" > < / a > < span class = "lineno" > 2908< / span >   VLOG(1) < < < span class = "stringliteral" > " Changed the sign of " < / span > < < changed_columns_.size() < < < span class = "stringliteral" > " columns." < / span > ;< / div >
< div class = "line" > < a name = "l02909" > < / a > < span class = "lineno" > 2909< / span >   VLOG(1) < < num_singletons < < < span class = "stringliteral" > " singleton columns left." < / span > ;< / div >
< div class = "line" > < a name = "l02910" > < / a > < span class = "lineno" > 2910< / span >   < span class = "keywordflow" > return< / span > !changed_columns_.empty();< / div >
< div class = "line" > < a name = "l02911" > < / a > < span class = "lineno" > 2911< / span >   }< / div >
< div class = "line" > < a name = "l02912" > < / a > < span class = "lineno" > 2912< / span >   < / div >
< div class = "line" > < a name = "l02913" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_singleton_column_sign_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 2913< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_singleton_column_sign_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > SingletonColumnSignPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l02914" > < / a > < span class = "lineno" > 2914< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l02915" > < / a > < span class = "lineno" > 2915< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l02916" > < / a > < span class = "lineno" > 2916< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
< div class = "line" > < a name = "l02917" > < / a > < span class = "lineno" > 2917< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < changed_columns_.size(); ++i) {< / div >
< div class = "line" > < a name = "l02918" > < / a > < span class = "lineno" > 2918< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = changed_columns_[i];< / div >
< div class = "line" > < a name = "l02919" > < / a > < span class = "lineno" > 2919< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = -solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l02920" > < / a > < span class = "lineno" > 2920< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l02921" > < / a > < span class = "lineno" > 2921< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l02922" > < / a > < span class = "lineno" > 2922< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02923" > < / a > < span class = "lineno" > 2923< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > ) {< / div >
< div class = "line" > < a name = "l02924" > < / a > < span class = "lineno" > 2924< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l02925" > < / a > < span class = "lineno" > 2925< / span >   }< / div >
< div class = "line" > < a name = "l02926" > < / a > < span class = "lineno" > 2926< / span >   }< / div >
< div class = "line" > < a name = "l02927" > < / a > < span class = "lineno" > 2927< / span >   }< / div >
< div class = "line" > < a name = "l02928" > < / a > < span class = "lineno" > 2928< / span >   < / div >
< div class = "line" > < a name = "l02929" > < / a > < span class = "lineno" > 2929< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l02930" > < / a > < span class = "lineno" > 2930< / span >   < span class = "comment" > // DoubletonEqualityRowPreprocessor< / span > < / div >
< div class = "line" > < a name = "l02931" > < / a > < span class = "lineno" > 2931< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l02932" > < / a > < span class = "lineno" > 2932< / span >   < / div >
< div class = "line" > < a name = "l02933" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 2933< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > DoubletonEqualityRowPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l02934" > < / a > < span class = "lineno" > 2934< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l02935" > < / a > < span class = "lineno" > 2935< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l02936" > < / a > < span class = "lineno" > 2936< / span >   < / div >
< div class = "line" > < a name = "l02937" > < / a > < span class = "lineno" > 2937< / span >   < span class = "comment" > // This is needed at postsolve.< / span > < / div >
< div class = "line" > < a name = "l02938" > < / a > < span class = "lineno" > 2938< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l02939" > < / a > < span class = "lineno" > 2939< / span >   < span class = "comment" > // TODO(user): Get rid of the FIXED status instead to avoid spending< / span > < / div >
< div class = "line" > < a name = "l02940" > < / a > < span class = "lineno" > 2940< / span >   < span class = "comment" > // time/memory for no good reason here.< / span > < / div >
< div class = "line" > < a name = "l02941" > < / a > < span class = "lineno" > 2941< / span >   saved_row_lower_bounds_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ();< / div >
< div class = "line" > < a name = "l02942" > < / a > < span class = "lineno" > 2942< / span >   saved_row_upper_bounds_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ();< / div >
< div class = "line" > < a name = "l02943" > < / a > < span class = "lineno" > 2943< / span >   < / div >
< div class = "line" > < a name = "l02944" > < / a > < span class = "lineno" > 2944< / span >   < span class = "comment" > // Note that we don' t update the transpose during this preprocessor run.< / span > < / div >
< div class = "line" > < a name = "l02945" > < / a > < span class = "lineno" > 2945< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > SparseMatrix< / a > & original_transpose = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a2175025047722705a3af86e54229f9cd" > GetTransposeSparseMatrix< / a > ();< / div >
< div class = "line" > < a name = "l02946" > < / a > < span class = "lineno" > 2946< / span >   < / div >
< div class = "line" > < a name = "l02947" > < / a > < span class = "lineno" > 2947< / span >   < span class = "comment" > // Iterate over the rows that were already doubletons before this preprocessor< / span > < / div >
< div class = "line" > < a name = "l02948" > < / a > < span class = "lineno" > 2948< / span >   < span class = "comment" > // run, and whose items don' t belong to a column that we deleted during this< / span > < / div >
< div class = "line" > < a name = "l02949" > < / a > < span class = "lineno" > 2949< / span >   < span class = "comment" > // run. This implies that the rows are only ever touched once per run, because< / span > < / div >
< div class = "line" > < a name = "l02950" > < / a > < span class = "lineno" > 2950< / span >   < span class = "comment" > // we only modify rows that have an item on a deleted column.< / span > < / div >
< div class = "line" > < a name = "l02951" > < / a > < span class = "lineno" > 2951< / span >   < span class = "keyword" > const< / span > RowIndex num_rows(lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ());< / div >
< div class = "line" > < a name = "l02952" > < / a > < span class = "lineno" > 2952< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l02953" > < / a > < span class = "lineno" > 2953< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_column.html" > SparseColumn< / a > & original_row =< / div >
< div class = "line" > < a name = "l02954" > < / a > < span class = "lineno" > 2954< / span >   original_transpose.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > column< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ));< / div >
< div class = "line" > < a name = "l02955" > < / a > < span class = "lineno" > 2955< / span >   < span class = "keywordflow" > if< / span > (original_row.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af69d9b7065a8f31604a8134be4307749" > num_entries< / a > () != 2 ||< / div >
< div class = "line" > < a name = "l02956" > < / a > < span class = "lineno" > 2956< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] !=< / div >
< div class = "line" > < a name = "l02957" > < / a > < span class = "lineno" > 2957< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) {< / div >
< div class = "line" > < a name = "l02958" > < / a > < span class = "lineno" > 2958< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02959" > < / a > < span class = "lineno" > 2959< / span >   }< / div >
< div class = "line" > < a name = "l02960" > < / a > < span class = "lineno" > 2960< / span >   < / div >
< div class = "line" > < a name = "l02961" > < / a > < span class = "lineno" > 2961< / span >   < span class = "comment" > // Collect the two row items. Skip the ones involving a deleted column.< / span > < / div >
< div class = "line" > < a name = "l02962" > < / a > < span class = "lineno" > 2962< / span >   < span class = "comment" > // Note: we filled r.col[] and r.coeff[] by item order, and currently we< / span > < / div >
< div class = "line" > < a name = "l02963" > < / a > < span class = "lineno" > 2963< / span >   < span class = "comment" > // always pick the first column as the to-be-deleted one.< / span > < / div >
< div class = "line" > < a name = "l02964" > < / a > < span class = "lineno" > 2964< / span >   < span class = "comment" > // TODO(user): make a smarter choice of which column to delete, and< / span > < / div >
< div class = "line" > < a name = "l02965" > < / a > < span class = "lineno" > 2965< / span >   < span class = "comment" > // swap col[] and coeff[] accordingly.< / span > < / div >
< div class = "line" > < a name = "l02966" > < / a > < span class = "lineno" > 2966< / span >   RestoreInfo r; < span class = "comment" > // Use a short name since we' re using it everywhere.< / span > < / div >
< div class = "line" > < a name = "l02967" > < / a > < span class = "lineno" > 2967< / span >   < span class = "keywordtype" > int< / span > entry_index = 0;< / div >
< div class = "line" > < a name = "l02968" > < / a > < span class = "lineno" > 2968< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : original_row) {< / div >
< div class = "line" > < a name = "l02969" > < / a > < span class = "lineno" > 2969< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (e.row());< / div >
< div class = "line" > < a name = "l02970" > < / a > < span class = "lineno" > 2970< / span >   < span class = "keywordflow" > if< / span > (column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a1fbdcd623d96ea5e73d664ce0c6bd002" > IsColumnMarked< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02971" > < / a > < span class = "lineno" > 2971< / span >   r.col[entry_index] = < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ;< / div >
< div class = "line" > < a name = "l02972" > < / a > < span class = "lineno" > 2972< / span >   r.coeff[entry_index] = e.coefficient();< / div >
< div class = "line" > < a name = "l02973" > < / a > < span class = "lineno" > 2973< / span >   DCHECK_NE(0.0, r.coeff[entry_index]);< / div >
< div class = "line" > < a name = "l02974" > < / a > < span class = "lineno" > 2974< / span >   ++entry_index;< / div >
< div class = "line" > < a name = "l02975" > < / a > < span class = "lineno" > 2975< / span >   }< / div >
< div class = "line" > < a name = "l02976" > < / a > < span class = "lineno" > 2976< / span >   < / div >
< div class = "line" > < a name = "l02977" > < / a > < span class = "lineno" > 2977< / span >   < span class = "comment" > // Discard some cases that will be treated by other preprocessors, or by< / span > < / div >
< div class = "line" > < a name = "l02978" > < / a > < span class = "lineno" > 2978< / span >   < span class = "comment" > // another run of this one.< / span > < / div >
< div class = "line" > < a name = "l02979" > < / a > < span class = "lineno" > 2979< / span >   < span class = "comment" > // 1) One or two of the items were in a deleted column.< / span > < / div >
< div class = "line" > < a name = "l02980" > < / a > < span class = "lineno" > 2980< / span >   < span class = "keywordflow" > if< / span > (entry_index < 2) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02981" > < / a > < span class = "lineno" > 2981< / span >   < / div >
< div class = "line" > < a name = "l02982" > < / a > < span class = "lineno" > 2982< / span >   < span class = "comment" > // Fill the RestoreInfo, even if we end up not using it (because we< / span > < / div >
< div class = "line" > < a name = "l02983" > < / a > < span class = "lineno" > 2983< / span >   < span class = "comment" > // give up on preprocessing this row): it has a bunch of handy shortcuts.< / span > < / div >
< div class = "line" > < a name = "l02984" > < / a > < span class = "lineno" > 2984< / span >   r.row = < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ;< / div >
< div class = "line" > < a name = "l02985" > < / a > < span class = "lineno" > 2985< / span >   r.rhs = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l02986" > < / a > < span class = "lineno" > 2986< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > col_choice = 0; col_choice < NUM_DOUBLETON_COLS; ++col_choice) {< / div >
< div class = "line" > < a name = "l02987" > < / a > < span class = "lineno" > 2987< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = r.col[col_choice];< / div >
< div class = "line" > < a name = "l02988" > < / a > < span class = "lineno" > 2988< / span >   r.lb[col_choice] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l02989" > < / a > < span class = "lineno" > 2989< / span >   r.ub[col_choice] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l02990" > < / a > < span class = "lineno" > 2990< / span >   r.objective_coefficient[col_choice] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l02991" > < / a > < span class = "lineno" > 2991< / span >   r.column[col_choice].PopulateFromSparseVector(lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ));< / div >
< div class = "line" > < a name = "l02992" > < / a > < span class = "lineno" > 2992< / span >   }< / div >
< div class = "line" > < a name = "l02993" > < / a > < span class = "lineno" > 2993< / span >   < / div >
< div class = "line" > < a name = "l02994" > < / a > < span class = "lineno" > 2994< / span >   < span class = "comment" > // 2) One of the columns is fixed: don' t bother, it will be treated< / span > < / div >
< div class = "line" > < a name = "l02995" > < / a > < span class = "lineno" > 2995< / span >   < span class = "comment" > // by the FixedVariablePreprocessor.< / span > < / div >
< div class = "line" > < a name = "l02996" > < / a > < span class = "lineno" > 2996< / span >   < span class = "keywordflow" > if< / span > (r.lb[DELETED] == r.ub[DELETED] || r.lb[MODIFIED] == r.ub[MODIFIED]) {< / div >
< div class = "line" > < a name = "l02997" > < / a > < span class = "lineno" > 2997< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l02998" > < / a > < span class = "lineno" > 2998< / span >   }< / div >
< div class = "line" > < a name = "l02999" > < / a > < span class = "lineno" > 2999< / span >   < / div >
< div class = "line" > < a name = "l03000" > < / a > < span class = "lineno" > 3000< / span >   < span class = "comment" > // Look at the bounds of both variables and exit early if we can delegate< / span > < / div >
< div class = "line" > < a name = "l03001" > < / a > < span class = "lineno" > 3001< / span >   < span class = "comment" > // to another pre-processor; otherwise adjust the bounds of the remaining< / span > < / div >
< div class = "line" > < a name = "l03002" > < / a > < span class = "lineno" > 3002< / span >   < span class = "comment" > // variable as necessary.< / span > < / div >
< div class = "line" > < a name = "l03003" > < / a > < span class = "lineno" > 3003< / span >   < span class = "comment" > // If the current row is: aX + bY = c, then the bounds of Y must be< / span > < / div >
< div class = "line" > < a name = "l03004" > < / a > < span class = "lineno" > 3004< / span >   < span class = "comment" > // adjusted to satisfy Y = c/b + (-a/b)X< / span > < / div >
< div class = "line" > < a name = "l03005" > < / a > < span class = "lineno" > 3005< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l03006" > < / a > < span class = "lineno" > 3006< / span >   < span class = "comment" > // Note: when we compute the coefficients of these equations, we can cause< / span > < / div >
< div class = "line" > < a name = "l03007" > < / a > < span class = "lineno" > 3007< / span >   < span class = "comment" > // underflows/overflows that could be avoided if we did the computations< / span > < / div >
< div class = "line" > < a name = "l03008" > < / a > < span class = "lineno" > 3008< / span >   < span class = "comment" > // more carefully; but for now we just treat those cases as< / span > < / div >
< div class = "line" > < a name = "l03009" > < / a > < span class = "lineno" > 3009< / span >   < span class = "comment" > // ProblemStatus::ABNORMAL.< / span > < / div >
< div class = "line" > < a name = "l03010" > < / a > < span class = "lineno" > 3010< / span >   < span class = "comment" > // TODO(user): consider skipping the problematic rows in this preprocessor,< / span > < / div >
< div class = "line" > < a name = "l03011" > < / a > < span class = "lineno" > 3011< / span >   < span class = "comment" > // or trying harder to avoid the under/overflow.< / span > < / div >
< div class = "line" > < a name = "l03012" > < / a > < span class = "lineno" > 3012< / span >   {< / div >
< div class = "line" > < a name = "l03013" > < / a > < span class = "lineno" > 3013< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > carry_over_offset = r.rhs / r.coeff[MODIFIED];< / div >
< div class = "line" > < a name = "l03014" > < / a > < span class = "lineno" > 3014< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > carry_over_factor =< / div >
< div class = "line" > < a name = "l03015" > < / a > < span class = "lineno" > 3015< / span >   -r.coeff[DELETED] / r.coeff[MODIFIED];< / div >
< div class = "line" > < a name = "l03016" > < / a > < span class = "lineno" > 3016< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (carry_over_offset) || !< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (carry_over_factor) ||< / div >
< div class = "line" > < a name = "l03017" > < / a > < span class = "lineno" > 3017< / span >   carry_over_factor == 0.0) {< / div >
< div class = "line" > < a name = "l03018" > < / a > < span class = "lineno" > 3018< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a88ec4386a3c49b50819358a579fb9adb" > ProblemStatus::ABNORMAL< / a > ;< / div >
< div class = "line" > < a name = "l03019" > < / a > < span class = "lineno" > 3019< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03020" > < / a > < span class = "lineno" > 3020< / span >   }< / div >
< div class = "line" > < a name = "l03021" > < / a > < span class = "lineno" > 3021< / span >   < / div >
< div class = "line" > < a name = "l03022" > < / a > < span class = "lineno" > 3022< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lb = r.lb[MODIFIED];< / div >
< div class = "line" > < a name = "l03023" > < / a > < span class = "lineno" > 3023< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > ub = r.ub[MODIFIED];< / div >
< div class = "line" > < a name = "l03024" > < / a > < span class = "lineno" > 3024< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > carried_over_lb =< / div >
< div class = "line" > < a name = "l03025" > < / a > < span class = "lineno" > 3025< / span >   r.lb[DELETED] * carry_over_factor + carry_over_offset;< / div >
< div class = "line" > < a name = "l03026" > < / a > < span class = "lineno" > 3026< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > carried_over_ub =< / div >
< div class = "line" > < a name = "l03027" > < / a > < span class = "lineno" > 3027< / span >   r.ub[DELETED] * carry_over_factor + carry_over_offset;< / div >
< div class = "line" > < a name = "l03028" > < / a > < span class = "lineno" > 3028< / span >   < span class = "keywordflow" > if< / span > (carry_over_factor < 0) {< / div >
< div class = "line" > < a name = "l03029" > < / a > < span class = "lineno" > 3029< / span >   std::swap(carried_over_lb, carried_over_ub);< / div >
< div class = "line" > < a name = "l03030" > < / a > < span class = "lineno" > 3030< / span >   }< / div >
< div class = "line" > < a name = "l03031" > < / a > < span class = "lineno" > 3031< / span >   < span class = "keywordflow" > if< / span > (carried_over_lb < = lb) {< / div >
< div class = "line" > < a name = "l03032" > < / a > < span class = "lineno" > 3032< / span >   < span class = "comment" > // Default (and simplest) case: the lower bound didn' t change.< / span > < / div >
< div class = "line" > < a name = "l03033" > < / a > < span class = "lineno" > 3033< / span >   r.bound_backtracking_at_lower_bound = < a class = "code" href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html" > RestoreInfo::ColChoiceAndStatus< / a > (< / div >
< div class = "line" > < a name = "l03034" > < / a > < span class = "lineno" > 3034< / span >   MODIFIED, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > , lb);< / div >
< div class = "line" > < a name = "l03035" > < / a > < span class = "lineno" > 3035< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l03036" > < / a > < span class = "lineno" > 3036< / span >   lb = carried_over_lb;< / div >
< div class = "line" > < a name = "l03037" > < / a > < span class = "lineno" > 3037< / span >   r.bound_backtracking_at_lower_bound = < a class = "code" href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html" > RestoreInfo::ColChoiceAndStatus< / a > (< / div >
< div class = "line" > < a name = "l03038" > < / a > < span class = "lineno" > 3038< / span >   DELETED,< / div >
< div class = "line" > < a name = "l03039" > < / a > < span class = "lineno" > 3039< / span >   carry_over_factor > 0 ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > < / div >
< div class = "line" > < a name = "l03040" > < / a > < span class = "lineno" > 3040< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ,< / div >
< div class = "line" > < a name = "l03041" > < / a > < span class = "lineno" > 3041< / span >   carry_over_factor > 0 ? r.lb[DELETED] : r.ub[DELETED]);< / div >
< div class = "line" > < a name = "l03042" > < / a > < span class = "lineno" > 3042< / span >   }< / div >
< div class = "line" > < a name = "l03043" > < / a > < span class = "lineno" > 3043< / span >   < span class = "keywordflow" > if< / span > (carried_over_ub > = ub) {< / div >
< div class = "line" > < a name = "l03044" > < / a > < span class = "lineno" > 3044< / span >   < span class = "comment" > // Default (and simplest) case: the upper bound didn' t change.< / span > < / div >
< div class = "line" > < a name = "l03045" > < / a > < span class = "lineno" > 3045< / span >   r.bound_backtracking_at_upper_bound = < a class = "code" href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html" > RestoreInfo::ColChoiceAndStatus< / a > (< / div >
< div class = "line" > < a name = "l03046" > < / a > < span class = "lineno" > 3046< / span >   MODIFIED, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > , ub);< / div >
< div class = "line" > < a name = "l03047" > < / a > < span class = "lineno" > 3047< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l03048" > < / a > < span class = "lineno" > 3048< / span >   ub = carried_over_ub;< / div >
< div class = "line" > < a name = "l03049" > < / a > < span class = "lineno" > 3049< / span >   r.bound_backtracking_at_upper_bound = < a class = "code" href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html" > RestoreInfo::ColChoiceAndStatus< / a > (< / div >
< div class = "line" > < a name = "l03050" > < / a > < span class = "lineno" > 3050< / span >   DELETED,< / div >
< div class = "line" > < a name = "l03051" > < / a > < span class = "lineno" > 3051< / span >   carry_over_factor > 0 ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > < / div >
< div class = "line" > < a name = "l03052" > < / a > < span class = "lineno" > 3052< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > ,< / div >
< div class = "line" > < a name = "l03053" > < / a > < span class = "lineno" > 3053< / span >   carry_over_factor > 0 ? r.ub[DELETED] : r.lb[DELETED]);< / div >
< div class = "line" > < a name = "l03054" > < / a > < span class = "lineno" > 3054< / span >   }< / div >
< div class = "line" > < a name = "l03055" > < / a > < span class = "lineno" > 3055< / span >   < span class = "comment" > // 3) If the new bounds are fixed (the domain is a singleton) or< / span > < / div >
< div class = "line" > < a name = "l03056" > < / a > < span class = "lineno" > 3056< / span >   < span class = "comment" > // infeasible, then we let the< / span > < / div >
< div class = "line" > < a name = "l03057" > < / a > < span class = "lineno" > 3057< / span >   < span class = "comment" > // ForcingAndImpliedFreeConstraintPreprocessor do the work.< / span > < / div >
< div class = "line" > < a name = "l03058" > < / a > < span class = "lineno" > 3058< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > IsSmallerWithinPreprocessorZeroTolerance< / a > (ub, lb)) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l03059" > < / a > < span class = "lineno" > 3059< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093" > SetVariableBounds< / a > (r.col[MODIFIED], lb, ub);< / div >
< div class = "line" > < a name = "l03060" > < / a > < span class = "lineno" > 3060< / span >   }< / div >
< div class = "line" > < a name = "l03061" > < / a > < span class = "lineno" > 3061< / span >   < / div >
< div class = "line" > < a name = "l03062" > < / a > < span class = "lineno" > 3062< / span >   restore_stack_.push_back(r);< / div >
< div class = "line" > < a name = "l03063" > < / a > < span class = "lineno" > 3063< / span >   < / div >
< div class = "line" > < a name = "l03064" > < / a > < span class = "lineno" > 3064< / span >   < span class = "comment" > // Now, perform the substitution. If the current row is: aX + bY = c< / span > < / div >
< div class = "line" > < a name = "l03065" > < / a > < span class = "lineno" > 3065< / span >   < span class = "comment" > // then any other row containing ' X' with coefficient x can remove the< / span > < / div >
< div class = "line" > < a name = "l03066" > < / a > < span class = "lineno" > 3066< / span >   < span class = "comment" > // entry in X, and instead add an entry on ' Y' with coefficient x(-b/a)< / span > < / div >
< div class = "line" > < a name = "l03067" > < / a > < span class = "lineno" > 3067< / span >   < span class = "comment" > // and a constant offset x(c/a).< / span > < / div >
< div class = "line" > < a name = "l03068" > < / a > < span class = "lineno" > 3068< / span >   < span class = "comment" > // Looking at the matrix, this translates into colY += (-b/a) colX.< / span > < / div >
< div class = "line" > < a name = "l03069" > < / a > < span class = "lineno" > 3069< / span >   DCHECK_NE(r.coeff[DELETED], 0.0);< / div >
< div class = "line" > < a name = "l03070" > < / a > < span class = "lineno" > 3070< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > substitution_factor =< / div >
< div class = "line" > < a name = "l03071" > < / a > < span class = "lineno" > 3071< / span >   -r.coeff[MODIFIED] / r.coeff[DELETED]; < span class = "comment" > // -b/a< / span > < / div >
< div class = "line" > < a name = "l03072" > < / a > < span class = "lineno" > 3072< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > constant_offset_factor = r.rhs / r.coeff[DELETED]; < span class = "comment" > // c/a< / span > < / div >
< div class = "line" > < a name = "l03073" > < / a > < span class = "lineno" > 3073< / span >   < span class = "comment" > // Again we don' t bother too much with over/underflows.< / span > < / div >
< div class = "line" > < a name = "l03074" > < / a > < span class = "lineno" > 3074< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (substitution_factor) || substitution_factor == 0.0 ||< / div >
< div class = "line" > < a name = "l03075" > < / a > < span class = "lineno" > 3075< / span >   !< a class = "code" href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > IsFinite< / a > (constant_offset_factor)) {< / div >
< div class = "line" > < a name = "l03076" > < / a > < span class = "lineno" > 3076< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a88ec4386a3c49b50819358a579fb9adb" > ProblemStatus::ABNORMAL< / a > ;< / div >
< div class = "line" > < a name = "l03077" > < / a > < span class = "lineno" > 3077< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03078" > < / a > < span class = "lineno" > 3078< / span >   }< / div >
< div class = "line" > < a name = "l03079" > < / a > < span class = "lineno" > 3079< / span >   r.column[DELETED].AddMultipleToSparseVectorAndDeleteCommonIndex(< / div >
< div class = "line" > < a name = "l03080" > < / a > < span class = "lineno" > 3080< / span >   substitution_factor, < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > , < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .drop_tolerance(),< / div >
< div class = "line" > < a name = "l03081" > < / a > < span class = "lineno" > 3081< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a88cc1c4519b043336ce23cdcec5fb0c2" > GetMutableSparseColumn< / a > (r.col[MODIFIED]));< / div >
< div class = "line" > < a name = "l03082" > < / a > < span class = "lineno" > 3082< / span >   < / div >
< div class = "line" > < a name = "l03083" > < / a > < span class = "lineno" > 3083< / span >   < span class = "comment" > // Apply similar operations on the objective coefficients.< / span > < / div >
< div class = "line" > < a name = "l03084" > < / a > < span class = "lineno" > 3084< / span >   < span class = "comment" > // Note that the offset is being updated by< / span > < / div >
< div class = "line" > < a name = "l03085" > < / a > < span class = "lineno" > 3085< / span >   < span class = "comment" > // SubtractColumnMultipleFromConstraintBound() below.< / span > < / div >
< div class = "line" > < a name = "l03086" > < / a > < span class = "lineno" > 3086< / span >   {< / div >
< div class = "line" > < a name = "l03087" > < / a > < span class = "lineno" > 3087< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > new_objective =< / div >
< div class = "line" > < a name = "l03088" > < / a > < span class = "lineno" > 3088< / span >   r.objective_coefficient[MODIFIED] +< / div >
< div class = "line" > < a name = "l03089" > < / a > < span class = "lineno" > 3089< / span >   substitution_factor * r.objective_coefficient[DELETED];< / div >
< div class = "line" > < a name = "l03090" > < / a > < span class = "lineno" > 3090< / span >   < span class = "keywordflow" > if< / span > (std::abs(new_objective) > < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .drop_tolerance()) {< / div >
< div class = "line" > < a name = "l03091" > < / a > < span class = "lineno" > 3091< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9" > SetObjectiveCoefficient< / a > (r.col[MODIFIED], new_objective);< / div >
< div class = "line" > < a name = "l03092" > < / a > < span class = "lineno" > 3092< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l03093" > < / a > < span class = "lineno" > 3093< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9" > SetObjectiveCoefficient< / a > (r.col[MODIFIED], 0.0);< / div >
< div class = "line" > < a name = "l03094" > < / a > < span class = "lineno" > 3094< / span >   }< / div >
< div class = "line" > < a name = "l03095" > < / a > < span class = "lineno" > 3095< / span >   }< / div >
< div class = "line" > < a name = "l03096" > < / a > < span class = "lineno" > 3096< / span >   < / div >
< div class = "line" > < a name = "l03097" > < / a > < span class = "lineno" > 3097< / span >   < span class = "comment" > // Carry over the constant factor of the substitution as well.< / span > < / div >
< div class = "line" > < a name = "l03098" > < / a > < span class = "lineno" > 3098< / span >   < span class = "comment" > // TODO(user): rename that method to reflect the fact that it also updates< / span > < / div >
< div class = "line" > < a name = "l03099" > < / a > < span class = "lineno" > 3099< / span >   < span class = "comment" > // the objective offset, in the other direction.< / span > < / div >
< div class = "line" > < a name = "l03100" > < / a > < span class = "lineno" > 3100< / span >   SubtractColumnMultipleFromConstraintBound(r.col[DELETED],< / div >
< div class = "line" > < a name = "l03101" > < / a > < span class = "lineno" > 3101< / span >   constant_offset_factor, lp);< / div >
< div class = "line" > < a name = "l03102" > < / a > < span class = "lineno" > 3102< / span >   < / div >
< div class = "line" > < a name = "l03103" > < / a > < span class = "lineno" > 3103< / span >   < span class = "comment" > // Mark the column and the row for deletion.< / span > < / div >
< div class = "line" > < a name = "l03104" > < / a > < span class = "lineno" > 3104< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a46b7ed2e9e3a3d5dc9a024801e1baaf7" > MarkColumnForDeletion< / a > (r.col[DELETED]);< / div >
< div class = "line" > < a name = "l03105" > < / a > < span class = "lineno" > 3105< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2087c8376c03c247099a989f2990e6e8" > MarkRowForDeletion< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l03106" > < / a > < span class = "lineno" > 3106< / span >   }< / div >
< div class = "line" > < a name = "l03107" > < / a > < span class = "lineno" > 3107< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > status_< / a > != < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > ProblemStatus::INIT< / a > ) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l03108" > < / a > < span class = "lineno" > 3108< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac59fd9cddfe284bf9dc7581ed631ce8d" > DeleteColumns< / a > (column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a6afccf8c0c7105ba45b8d7bd47830239" > GetMarkedColumns< / a > ());< / div >
< div class = "line" > < a name = "l03109" > < / a > < span class = "lineno" > 3109< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac220cc5563c65b821d9d043010bb2121" > DeleteRows< / a > (row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a4dda252e2b65e3aa074c002daf6f86b8" > GetMarkedRows< / a > ());< / div >
< div class = "line" > < a name = "l03110" > < / a > < span class = "lineno" > 3110< / span >   < span class = "keywordflow" > return< / span > !column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > IsEmpty< / a > ();< / div >
< div class = "line" > < a name = "l03111" > < / a > < span class = "lineno" > 3111< / span >   }< / div >
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< div class = "line" > < a name = "l03112" > < / a > < span class = "lineno" > 3112< / span >   < / div >
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< div class = "line" > < a name = "l03113" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 3113< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > DoubletonEqualityRowPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l03114" > < / a > < span class = "lineno" > 3114< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03115" > < / a > < span class = "lineno" > 3115< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l03116" > < / a > < span class = "lineno" > 3116< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
< div class = "line" > < a name = "l03117" > < / a > < span class = "lineno" > 3117< / span >   column_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#ab73f53154d99b3cd13dae72fd418985d" > RestoreDeletedColumns< / a > (solution);< / div >
< div class = "line" > < a name = "l03118" > < / a > < span class = "lineno" > 3118< / span >   row_deletion_helper_.< a class = "code" href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a43e3b399f53b38b75171071c9d730c5b" > RestoreDeletedRows< / a > (solution);< / div >
< div class = "line" > < a name = "l03119" > < / a > < span class = "lineno" > 3119< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > RestoreInfo& r : < a class = "code" href = "namespaceutil.html#a1e2d5c05e25343bc8e4fbccce0000d51" > Reverse< / a > (restore_stack_)) {< / div >
< div class = "line" > < a name = "l03120" > < / a > < span class = "lineno" > 3120< / span >   < span class = "keywordflow" > switch< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [r.col[MODIFIED]]) {< / div >
< div class = "line" > < a name = "l03121" > < / a > < span class = "lineno" > 3121< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > :< / div >
< div class = "line" > < a name = "l03122" > < / a > < span class = "lineno" > 3122< / span >   LOG(DFATAL) < < < span class = "stringliteral" > " FIXED variable produced by DoubletonPreprocessor!" < / span > ;< / div >
< div class = "line" > < a name = "l03123" > < / a > < span class = "lineno" > 3123< / span >   < span class = "comment" > // In non-fastbuild mode, we rely on the rest of the code producing an< / span > < / div >
< div class = "line" > < a name = "l03124" > < / a > < span class = "lineno" > 3124< / span >   < span class = "comment" > // ProblemStatus::ABNORMAL status here.< / span > < / div >
< div class = "line" > < a name = "l03125" > < / a > < span class = "lineno" > 3125< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03126" > < / a > < span class = "lineno" > 3126< / span >   < span class = "comment" > // When the modified variable is either basic or free, we keep it as is,< / span > < / div >
< div class = "line" > < a name = "l03127" > < / a > < span class = "lineno" > 3127< / span >   < span class = "comment" > // and simply make the deleted one basic.< / span > < / div >
< div class = "line" > < a name = "l03128" > < / a > < span class = "lineno" > 3128< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > :< / div >
< div class = "line" > < a name = "l03129" > < / a > < span class = "lineno" > 3129< / span >   ABSL_FALLTHROUGH_INTENDED;< / div >
< div class = "line" > < a name = "l03130" > < / a > < span class = "lineno" > 3130< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > :< / div >
< div class = "line" > < a name = "l03131" > < / a > < span class = "lineno" > 3131< / span >   < span class = "comment" > // Several code paths set the deleted column as basic. The code that< / span > < / div >
< div class = "line" > < a name = "l03132" > < / a > < span class = "lineno" > 3132< / span >   < span class = "comment" > // sets its value in that case is below, after the switch() block.< / span > < / div >
< div class = "line" > < a name = "l03133" > < / a > < span class = "lineno" > 3133< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [r.col[DELETED]] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
< div class = "line" > < a name = "l03134" > < / a > < span class = "lineno" > 3134< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03135" > < / a > < span class = "lineno" > 3135< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > :< / div >
< div class = "line" > < a name = "l03136" > < / a > < span class = "lineno" > 3136< / span >   ABSL_FALLTHROUGH_INTENDED;< / div >
< div class = "line" > < a name = "l03137" > < / a > < span class = "lineno" > 3137< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > : {< / div >
< div class = "line" > < a name = "l03138" > < / a > < span class = "lineno" > 3138< / span >   < span class = "comment" > // The bound was induced by a bound of one of the two original< / span > < / div >
< div class = "line" > < a name = "l03139" > < / a > < span class = "lineno" > 3139< / span >   < span class = "comment" > // variables. Put that original variable at its bound, and make< / span > < / div >
< div class = "line" > < a name = "l03140" > < / a > < span class = "lineno" > 3140< / span >   < span class = "comment" > // the other one basic.< / span > < / div >
< div class = "line" > < a name = "l03141" > < / a > < span class = "lineno" > 3141< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html" > RestoreInfo::ColChoiceAndStatus< / a > & bound_backtracking =< / div >
< div class = "line" > < a name = "l03142" > < / a > < span class = "lineno" > 3142< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [r.col[MODIFIED]] ==< / div >
< div class = "line" > < a name = "l03143" > < / a > < span class = "lineno" > 3143< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > < / div >
< div class = "line" > < a name = "l03144" > < / a > < span class = "lineno" > 3144< / span >   ? r.bound_backtracking_at_lower_bound< / div >
< div class = "line" > < a name = "l03145" > < / a > < span class = "lineno" > 3145< / span >   : r.bound_backtracking_at_upper_bound;< / div >
< div class = "line" > < a name = "l03146" > < / a > < span class = "lineno" > 3146< / span >   < span class = "keyword" > const< / span > ColIndex bounded_var = r.col[bound_backtracking.< a class = "code" href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html#ad9a7a69580012bd79b5e46d39bddee80" > col_choice< / a > ];< / div >
< div class = "line" > < a name = "l03147" > < / a > < span class = "lineno" > 3147< / span >   < span class = "keyword" > const< / span > ColIndex basic_var =< / div >
< div class = "line" > < a name = "l03148" > < / a > < span class = "lineno" > 3148< / span >   r.col[OtherColChoice(bound_backtracking.< a class = "code" href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html#ad9a7a69580012bd79b5e46d39bddee80" > col_choice< / a > )];< / div >
< div class = "line" > < a name = "l03149" > < / a > < span class = "lineno" > 3149< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [bounded_var] = bound_backtracking.< a class = "code" href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html#ae01600784dc2a3768696f55aa374d093" > status< / a > ;< / div >
< div class = "line" > < a name = "l03150" > < / a > < span class = "lineno" > 3150< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [bounded_var] = bound_backtracking.< a class = "code" href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html#a7807b13123f03224c0435ad7d2bcdb11" > value< / a > ;< / div >
< div class = "line" > < a name = "l03151" > < / a > < span class = "lineno" > 3151< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [basic_var] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
< div class = "line" > < a name = "l03152" > < / a > < span class = "lineno" > 3152< / span >   < span class = "comment" > // If the modified column is VariableStatus::BASIC, then its value is< / span > < / div >
< div class = "line" > < a name = "l03153" > < / a > < span class = "lineno" > 3153< / span >   < span class = "comment" > // already set< / span > < / div >
< div class = "line" > < a name = "l03154" > < / a > < span class = "lineno" > 3154< / span >   < span class = "comment" > // correctly. If it' s the deleted column that is basic, its value is< / span > < / div >
< div class = "line" > < a name = "l03155" > < / a > < span class = "lineno" > 3155< / span >   < span class = "comment" > // set below the switch() block.< / span > < / div >
< div class = "line" > < a name = "l03156" > < / a > < span class = "lineno" > 3156< / span >   }< / div >
< div class = "line" > < a name = "l03157" > < / a > < span class = "lineno" > 3157< / span >   }< / div >
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< div class = "line" > < a name = "l03158" > < / a > < span class = "lineno" > 3158< / span >   < / div >
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< div class = "line" > < a name = "l03159" > < / a > < span class = "lineno" > 3159< / span >   < span class = "comment" > // Restore the value of the deleted column if it is VariableStatus::BASIC.< / span > < / div >
< div class = "line" > < a name = "l03160" > < / a > < span class = "lineno" > 3160< / span >   < span class = "keywordflow" > if< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [r.col[DELETED]] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ) {< / div >
< div class = "line" > < a name = "l03161" > < / a > < span class = "lineno" > 3161< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [r.col[DELETED]] =< / div >
< div class = "line" > < a name = "l03162" > < / a > < span class = "lineno" > 3162< / span >   (r.rhs -< / div >
< div class = "line" > < a name = "l03163" > < / a > < span class = "lineno" > 3163< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [r.col[MODIFIED]] * r.coeff[MODIFIED]) /< / div >
< div class = "line" > < a name = "l03164" > < / a > < span class = "lineno" > 3164< / span >   r.coeff[DELETED];< / div >
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< div class = "line" > < a name = "l03165" > < / a > < span class = "lineno" > 3165< / span >   }< / div >
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< div class = "line" > < a name = "l03166" > < / a > < span class = "lineno" > 3166< / span >   < / div >
< div class = "line" > < a name = "l03167" > < / a > < span class = "lineno" > 3167< / span >   < span class = "comment" > // Make the deleted constraint status FIXED.< / span > < / div >
< div class = "line" > < a name = "l03168" > < / a > < span class = "lineno" > 3168< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [r.row] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > ConstraintStatus::FIXED_VALUE< / a > ;< / div >
< div class = "line" > < a name = "l03169" > < / a > < span class = "lineno" > 3169< / span >   < / div >
< div class = "line" > < a name = "l03170" > < / a > < span class = "lineno" > 3170< / span >   < span class = "comment" > // Adjust the dual value of the deleted constraint so that the< / span > < / div >
< div class = "line" > < a name = "l03171" > < / a > < span class = "lineno" > 3171< / span >   < span class = "comment" > // VariableStatus::BASIC column have a reduced cost of zero (if the two< / span > < / div >
< div class = "line" > < a name = "l03172" > < / a > < span class = "lineno" > 3172< / span >   < span class = "comment" > // are VariableStatus::BASIC, just pick one).< / span > < / div >
< div class = "line" > < a name = "l03173" > < / a > < span class = "lineno" > 3173< / span >   < span class = "comment" > // The reduced cost of the other variable will then automatically be< / span > < / div >
< div class = "line" > < a name = "l03174" > < / a > < span class = "lineno" > 3174< / span >   < span class = "comment" > // correct: zero if it' s VariableStatus::BASIC, and with the correct sign if< / span > < / div >
< div class = "line" > < a name = "l03175" > < / a > < span class = "lineno" > 3175< / span >   < span class = "comment" > // it' s bounded.< / span > < / div >
< div class = "line" > < a name = "l03176" > < / a > < span class = "lineno" > 3176< / span >   < span class = "keyword" > const< / span > ColChoice col_choice =< / div >
< div class = "line" > < a name = "l03177" > < / a > < span class = "lineno" > 3177< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [r.col[DELETED]] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > < / div >
< div class = "line" > < a name = "l03178" > < / a > < span class = "lineno" > 3178< / span >   ? DELETED< / div >
< div class = "line" > < a name = "l03179" > < / a > < span class = "lineno" > 3179< / span >   : MODIFIED;< / div >
< div class = "line" > < a name = "l03180" > < / a > < span class = "lineno" > 3180< / span >   < span class = "comment" > // To compute the reduced cost properly (i.e. without the restored row).< / span > < / div >
< div class = "line" > < a name = "l03181" > < / a > < span class = "lineno" > 3181< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [r.row] = 0.0;< / div >
< div class = "line" > < a name = "l03182" > < / a > < span class = "lineno" > 3182< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > current_reduced_cost =< / div >
< div class = "line" > < a name = "l03183" > < / a > < span class = "lineno" > 3183< / span >   r.objective_coefficient[col_choice] -< / div >
< div class = "line" > < a name = "l03184" > < / a > < span class = "lineno" > 3184< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a46fb729c0be27d1b97db15e0ce9c6067" > PreciseScalarProduct< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > , r.column[col_choice]);< / div >
< div class = "line" > < a name = "l03185" > < / a > < span class = "lineno" > 3185< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [r.row] = current_reduced_cost / r.coeff[col_choice];< / div >
< div class = "line" > < a name = "l03186" > < / a > < span class = "lineno" > 3186< / span >   }< / div >
< div class = "line" > < a name = "l03187" > < / a > < span class = "lineno" > 3187< / span >   < / div >
< div class = "line" > < a name = "l03188" > < / a > < span class = "lineno" > 3188< / span >   < span class = "comment" > // Fix potential bad ConstraintStatus::FIXED_VALUE statuses.< / span > < / div >
< div class = "line" > < a name = "l03189" > < / a > < span class = "lineno" > 3189< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a58ffd8db96c399242dc718221bdc81ee" > FixConstraintWithFixedStatuses< / a > (saved_row_lower_bounds_,< / div >
< div class = "line" > < a name = "l03190" > < / a > < span class = "lineno" > 3190< / span >   saved_row_upper_bounds_, solution);< / div >
< div class = "line" > < a name = "l03191" > < / a > < span class = "lineno" > 3191< / span >   }< / div >
< div class = "line" > < a name = "l03192" > < / a > < span class = "lineno" > 3192< / span >   < / div >
< div class = "line" > < a name = "l03193" > < / a > < span class = "lineno" > < a class = "line" href = "namespaceoperations__research_1_1glop.html#a58ffd8db96c399242dc718221bdc81ee" > 3193< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a58ffd8db96c399242dc718221bdc81ee" > FixConstraintWithFixedStatuses< / a > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseColumn< / a > & row_lower_bounds,< / div >
< div class = "line" > < a name = "l03194" > < / a > < span class = "lineno" > 3194< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseColumn< / a > & row_upper_bounds,< / div >
< div class = "line" > < a name = "l03195" > < / a > < span class = "lineno" > 3195< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution) {< / div >
< div class = "line" > < a name = "l03196" > < / a > < span class = "lineno" > 3196< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
< div class = "line" > < a name = "l03197" > < / a > < span class = "lineno" > 3197< / span >   DCHECK_EQ(row_lower_bounds.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > (), num_rows);< / div >
< div class = "line" > < a name = "l03198" > < / a > < span class = "lineno" > 3198< / span >   DCHECK_EQ(row_upper_bounds.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > (), num_rows);< / div >
< div class = "line" > < a name = "l03199" > < / a > < span class = "lineno" > 3199< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l03200" > < / a > < span class = "lineno" > 3200< / span >   < span class = "keywordflow" > if< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > ConstraintStatus::FIXED_VALUE< / a > ) {< / div >
< div class = "line" > < a name = "l03201" > < / a > < span class = "lineno" > 3201< / span >   < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l03202" > < / a > < span class = "lineno" > 3202< / span >   }< / div >
< div class = "line" > < a name = "l03203" > < / a > < span class = "lineno" > 3203< / span >   < span class = "keywordflow" > if< / span > (row_lower_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == row_upper_bounds[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l03204" > < / a > < span class = "lineno" > 3204< / span >   < / div >
< div class = "line" > < a name = "l03205" > < / a > < span class = "lineno" > 3205< / span >   < span class = "comment" > // We need to fix the status and we just need to make sure that the bound we< / span > < / div >
< div class = "line" > < a name = "l03206" > < / a > < span class = "lineno" > 3206< / span >   < span class = "comment" > // choose satisfies the LP optimality conditions.< / span > < / div >
< div class = "line" > < a name = "l03207" > < / a > < span class = "lineno" > 3207< / span >   < span class = "keywordflow" > if< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] > 0) {< / div >
< div class = "line" > < a name = "l03208" > < / a > < span class = "lineno" > 3208< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l03209" > < / a > < span class = "lineno" > 3209< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l03210" > < / a > < span class = "lineno" > 3210< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l03211" > < / a > < span class = "lineno" > 3211< / span >   }< / div >
< div class = "line" > < a name = "l03212" > < / a > < span class = "lineno" > 3212< / span >   }< / div >
< div class = "line" > < a name = "l03213" > < / a > < span class = "lineno" > 3213< / span >   }< / div >
< div class = "line" > < a name = "l03214" > < / a > < span class = "lineno" > 3214< / span >   < / div >
< div class = "line" > < a name = "l03215" > < / a > < span class = "lineno" > 3215< / span >   < span class = "keywordtype" > void< / span > DoubletonEqualityRowPreprocessor::< / div >
< div class = "line" > < a name = "l03216" > < / a > < span class = "lineno" > 3216< / span >   SwapDeletedAndModifiedVariableRestoreInfo(RestoreInfo* r) {< / div >
< div class = "line" > < a name = "l03217" > < / a > < span class = "lineno" > 3217< / span >   < span class = "keyword" > using< / span > std::swap;< / div >
< div class = "line" > < a name = "l03218" > < / a > < span class = "lineno" > 3218< / span >   swap(r-> col[DELETED], r-> col[MODIFIED]);< / div >
< div class = "line" > < a name = "l03219" > < / a > < span class = "lineno" > 3219< / span >   swap(r-> coeff[DELETED], r-> coeff[MODIFIED]);< / div >
< div class = "line" > < a name = "l03220" > < / a > < span class = "lineno" > 3220< / span >   swap(r-> lb[DELETED], r-> lb[MODIFIED]);< / div >
< div class = "line" > < a name = "l03221" > < / a > < span class = "lineno" > 3221< / span >   swap(r-> ub[DELETED], r-> ub[MODIFIED]);< / div >
< div class = "line" > < a name = "l03222" > < / a > < span class = "lineno" > 3222< / span >   swap(r-> column[DELETED], r-> column[MODIFIED]);< / div >
< div class = "line" > < a name = "l03223" > < / a > < span class = "lineno" > 3223< / span >   swap(r-> objective_coefficient[DELETED], r-> objective_coefficient[MODIFIED]);< / div >
< div class = "line" > < a name = "l03224" > < / a > < span class = "lineno" > 3224< / span >   }< / div >
< div class = "line" > < a name = "l03225" > < / a > < span class = "lineno" > 3225< / span >   < / div >
< div class = "line" > < a name = "l03226" > < / a > < span class = "lineno" > 3226< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l03227" > < / a > < span class = "lineno" > 3227< / span >   < span class = "comment" > // DualizerPreprocessor< / span > < / div >
< div class = "line" > < a name = "l03228" > < / a > < span class = "lineno" > 3228< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l03229" > < / a > < span class = "lineno" > 3229< / span >   < / div >
< div class = "line" > < a name = "l03230" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 3230< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > DualizerPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l03231" > < / a > < span class = "lineno" > 3231< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l03232" > < / a > < span class = "lineno" > 3232< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l03233" > < / a > < span class = "lineno" > 3233< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .solve_dual_problem() == GlopParameters::NEVER_DO) {< / div >
< div class = "line" > < a name = "l03234" > < / a > < span class = "lineno" > 3234< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l03235" > < / a > < span class = "lineno" > 3235< / span >   }< / div >
< div class = "line" > < a name = "l03236" > < / a > < span class = "lineno" > 3236< / span >   < / div >
< div class = "line" > < a name = "l03237" > < / a > < span class = "lineno" > 3237< / span >   < span class = "comment" > // Store the original problem size and direction.< / span > < / div >
< div class = "line" > < a name = "l03238" > < / a > < span class = "lineno" > 3238< / span >   primal_num_cols_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
< div class = "line" > < a name = "l03239" > < / a > < span class = "lineno" > 3239< / span >   primal_num_rows_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ();< / div >
< div class = "line" > < a name = "l03240" > < / a > < span class = "lineno" > 3240< / span >   primal_is_maximization_problem_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#accdd045ec09206640c2338524da77d23" > IsMaximizationProblem< / a > ();< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l03241" > < / a > < span class = "lineno" > 3241< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l03242" > < / a > < span class = "lineno" > 3242< / span >   < span class = "comment" > // If we need to decide whether or not to take the dual, we only take it when< / span > < / div >
< div class = "line" > < a name = "l03243" > < / a > < span class = "lineno" > 3243< / span >   < span class = "comment" > // the matrix has more rows than columns. The number of rows of a linear< / span > < / div >
< div class = "line" > < a name = "l03244" > < / a > < span class = "lineno" > 3244< / span >   < span class = "comment" > // program gives the size of the square matrices we need to invert and the< / span > < / div >
< div class = "line" > < a name = "l03245" > < / a > < span class = "lineno" > 3245< / span >   < span class = "comment" > // order of iterations of the simplex method. So solving a program with less< / span > < / div >
< div class = "line" > < a name = "l03246" > < / a > < span class = "lineno" > 3246< / span >   < span class = "comment" > // rows is likely a better alternative. Note that the number of row of the< / span > < / div >
< div class = "line" > < a name = "l03247" > < / a > < span class = "lineno" > 3247< / span >   < span class = "comment" > // dual is the number of column of the primal.< / span > < / div >
< div class = "line" > < a name = "l03248" > < / a > < span class = "lineno" > 3248< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l03249" > < / a > < span class = "lineno" > 3249< / span >   < span class = "comment" > // Note however that the default is a conservative factor because if the< / span > < / div >
< div class = "line" > < a name = "l03250" > < / a > < span class = "lineno" > 3250< / span >   < span class = "comment" > // user gives us a primal program, we assume he knows what he is doing and< / span > < / div >
< div class = "line" > < a name = "l03251" > < / a > < span class = "lineno" > 3251< / span >   < span class = "comment" > // sometimes a problem is a lot faster to solve in a given formulation< / span > < / div >
< div class = "line" > < a name = "l03252" > < / a > < span class = "lineno" > 3252< / span >   < span class = "comment" > // even if its dimension would say otherwise.< / span > < / div >
< div class = "line" > < a name = "l03253" > < / a > < span class = "lineno" > 3253< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l03254" > < / a > < span class = "lineno" > 3254< / span >   < span class = "comment" > // Another reason to be conservative, is that the number of columns of the< / span > < / div >
< div class = "line" > < a name = "l03255" > < / a > < span class = "lineno" > 3255< / span >   < span class = "comment" > // dual is the number of rows of the primal plus up to two times the number of< / span > < / div >
< div class = "line" > < a name = "l03256" > < / a > < span class = "lineno" > 3256< / span >   < span class = "comment" > // columns of the primal.< / span > < / div >
< div class = "line" > < a name = "l03257" > < / a > < span class = "lineno" > 3257< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l03258" > < / a > < span class = "lineno" > 3258< / span >   < span class = "comment" > // TODO(user): This effect can be lowered if we use some of the extra< / span > < / div >
< div class = "line" > < a name = "l03259" > < / a > < span class = "lineno" > 3259< / span >   < span class = "comment" > // variables as slack variable which we are not doing at this point.< / span > < / div >
< div class = "line" > < a name = "l03260" > < / a > < span class = "lineno" > 3260< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .solve_dual_problem() == GlopParameters::LET_SOLVER_DECIDE) {< / div >
< div class = "line" > < a name = "l03261" > < / a > < span class = "lineno" > 3261< / span >   < span class = "keywordflow" > if< / span > (1.0 * primal_num_rows_.value() < < / div >
< div class = "line" > < a name = "l03262" > < / a > < span class = "lineno" > 3262< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .dualizer_threshold() * primal_num_cols_.value()) {< / div >
< div class = "line" > < a name = "l03263" > < / a > < span class = "lineno" > 3263< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l03264" > < / a > < span class = "lineno" > 3264< / span >   }< / div >
< div class = "line" > < a name = "l03265" > < / a > < span class = "lineno" > 3265< / span >   }< / div >
< div class = "line" > < a name = "l03266" > < / a > < span class = "lineno" > 3266< / span >   < / div >
< div class = "line" > < a name = "l03267" > < / a > < span class = "lineno" > 3267< / span >   < span class = "comment" > // Save the linear program bounds.< / span > < / div >
< div class = "line" > < a name = "l03268" > < / a > < span class = "lineno" > 3268< / span >   < span class = "comment" > // Also make sure that all the bounded variable have at least one bound set to< / span > < / div >
< div class = "line" > < a name = "l03269" > < / a > < span class = "lineno" > 3269< / span >   < span class = "comment" > // zero. This will be needed to post-solve a dual-basic solution into a< / span > < / div >
< div class = "line" > < a name = "l03270" > < / a > < span class = "lineno" > 3270< / span >   < span class = "comment" > // primal-basic one.< / span > < / div >
< div class = "line" > < a name = "l03271" > < / a > < span class = "lineno" > 3271< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
< div class = "line" > < a name = "l03272" > < / a > < span class = "lineno" > 3272< / span >   variable_lower_bounds_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, 0.0);< / div >
< div class = "line" > < a name = "l03273" > < / a > < span class = "lineno" > 3273< / span >   variable_upper_bounds_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, 0.0);< / div >
< div class = "line" > < a name = "l03274" > < / a > < span class = "lineno" > 3274< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03275" > < / a > < span class = "lineno" > 3275< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03276" > < / a > < span class = "lineno" > 3276< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03277" > < / a > < span class = "lineno" > 3277< / span >   < / div >
< div class = "line" > < a name = "l03278" > < / a > < span class = "lineno" > 3278< / span >   < span class = "comment" > // We need to shift one of the bound to zero.< / span > < / div >
< div class = "line" > < a name = "l03279" > < / a > < span class = "lineno" > 3279< / span >   variable_lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = lower;< / div >
< div class = "line" > < a name = "l03280" > < / a > < span class = "lineno" > 3280< / span >   variable_upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = upper;< / div >
< div class = "line" > < a name = "l03281" > < / a > < span class = "lineno" > 3281< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > = MinInMagnitudeOrZeroIfInfinite(lower, upper);< / div >
< div class = "line" > < a name = "l03282" > < / a > < span class = "lineno" > 3282< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > != 0.0) {< / div >
< div class = "line" > < a name = "l03283" > < / a > < span class = "lineno" > 3283< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093" > SetVariableBounds< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , lower - < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > , upper - < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > );< / div >
< div class = "line" > < a name = "l03284" > < / a > < span class = "lineno" > 3284< / span >   SubtractColumnMultipleFromConstraintBound(< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , < a class = "code" href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > , lp);< / div >
< div class = "line" > < a name = "l03285" > < / a > < span class = "lineno" > 3285< / span >   }< / div >
< div class = "line" > < a name = "l03286" > < / a > < span class = "lineno" > 3286< / span >   }< / div >
< div class = "line" > < a name = "l03287" > < / a > < span class = "lineno" > 3287< / span >   < / div >
< div class = "line" > < a name = "l03288" > < / a > < span class = "lineno" > 3288< / span >   < span class = "comment" > // Fill the information that will be needed during postsolve.< / span > < / div >
< div class = "line" > < a name = "l03289" > < / a > < span class = "lineno" > 3289< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l03290" > < / a > < span class = "lineno" > 3290< / span >   < span class = "comment" > // TODO(user): This will break if PopulateFromDual() is changed. so document< / span > < / div >
< div class = "line" > < a name = "l03291" > < / a > < span class = "lineno" > 3291< / span >   < span class = "comment" > // the convention or make the function fill these vectors?< / span > < / div >
< div class = "line" > < a name = "l03292" > < / a > < span class = "lineno" > 3292< / span >   dual_status_correspondence_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > ();< / div >
< div class = "line" > < a name = "l03293" > < / a > < span class = "lineno" > 3293< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < primal_num_rows_; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l03294" > < / a > < span class = "lineno" > 3294< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l03295" > < / a > < span class = "lineno" > 3295< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l03296" > < / a > < span class = "lineno" > 3296< / span >   < span class = "keywordflow" > if< / span > (lower_bound == upper_bound) {< / div >
< div class = "line" > < a name = "l03297" > < / a > < span class = "lineno" > 3297< / span >   dual_status_correspondence_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > );< / div >
< div class = "line" > < a name = "l03298" > < / a > < span class = "lineno" > 3298< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (upper_bound != < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l03299" > < / a > < span class = "lineno" > 3299< / span >   dual_status_correspondence_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l03300" > < / a > < span class = "lineno" > 3300< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (lower_bound != -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l03301" > < / a > < span class = "lineno" > 3301< / span >   dual_status_correspondence_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l03302" > < / a > < span class = "lineno" > 3302< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l03303" > < / a > < span class = "lineno" > 3303< / span >   LOG(DFATAL) < < < span class = "stringliteral" > " There should be no free constraint in this lp." < / span > ;< / div >
< div class = "line" > < a name = "l03304" > < / a > < span class = "lineno" > 3304< / span >   }< / div >
< div class = "line" > < a name = "l03305" > < / a > < span class = "lineno" > 3305< / span >   }< / div >
< div class = "line" > < a name = "l03306" > < / a > < span class = "lineno" > 3306< / span >   slack_or_surplus_mapping_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > clear< / a > ();< / div >
< div class = "line" > < a name = "l03307" > < / a > < span class = "lineno" > 3307< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < primal_num_cols_; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03308" > < / a > < span class = "lineno" > 3308< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03309" > < / a > < span class = "lineno" > 3309< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03310" > < / a > < span class = "lineno" > 3310< / span >   < span class = "keywordflow" > if< / span > (lower_bound != -< a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l03311" > < / a > < span class = "lineno" > 3311< / span >   dual_status_correspondence_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< / div >
< div class = "line" > < a name = "l03312" > < / a > < span class = "lineno" > 3312< / span >   upper_bound == lower_bound ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > < / div >
< div class = "line" > < a name = "l03313" > < / a > < span class = "lineno" > 3313< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l03314" > < / a > < span class = "lineno" > 3314< / span >   slack_or_surplus_mapping_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l03315" > < / a > < span class = "lineno" > 3315< / span >   }< / div >
< div class = "line" > < a name = "l03316" > < / a > < span class = "lineno" > 3316< / span >   }< / div >
< div class = "line" > < a name = "l03317" > < / a > < span class = "lineno" > 3317< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < primal_num_cols_; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03318" > < / a > < span class = "lineno" > 3318< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03319" > < / a > < span class = "lineno" > 3319< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper_bound = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03320" > < / a > < span class = "lineno" > 3320< / span >   < span class = "keywordflow" > if< / span > (upper_bound != < a class = "code" href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > kInfinity< / a > ) {< / div >
< div class = "line" > < a name = "l03321" > < / a > < span class = "lineno" > 3321< / span >   dual_status_correspondence_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< / div >
< div class = "line" > < a name = "l03322" > < / a > < span class = "lineno" > 3322< / span >   upper_bound == lower_bound ? < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > < / div >
< div class = "line" > < a name = "l03323" > < / a > < span class = "lineno" > 3323< / span >   : < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l03324" > < / a > < span class = "lineno" > 3324< / span >   slack_or_surplus_mapping_.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > push_back< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l03325" > < / a > < span class = "lineno" > 3325< / span >   }< / div >
< div class = "line" > < a name = "l03326" > < / a > < span class = "lineno" > 3326< / span >   }< / div >
< div class = "line" > < a name = "l03327" > < / a > < span class = "lineno" > 3327< / span >   < / div >
< div class = "line" > < a name = "l03328" > < / a > < span class = "lineno" > 3328< / span >   < span class = "comment" > // TODO(user): There are two different ways to deal with ranged rows when< / span > < / div >
< div class = "line" > < a name = "l03329" > < / a > < span class = "lineno" > 3329< / span >   < span class = "comment" > // taking the dual. The default way is to duplicate such rows, see< / span > < / div >
< div class = "line" > < a name = "l03330" > < / a > < span class = "lineno" > 3330< / span >   < span class = "comment" > // PopulateFromDual() for details. Another way is to call< / span > < / div >
< div class = "line" > < a name = "l03331" > < / a > < span class = "lineno" > 3331< / span >   < span class = "comment" > // lp-> AddSlackVariablesForFreeAndBoxedRows() before calling< / span > < / div >
< div class = "line" > < a name = "l03332" > < / a > < span class = "lineno" > 3332< / span >   < span class = "comment" > // PopulateFromDual(). Adds an option to switch between the two as this may< / span > < / div >
< div class = "line" > < a name = "l03333" > < / a > < span class = "lineno" > 3333< / span >   < span class = "comment" > // change the running time?< / span > < / div >
< div class = "line" > < a name = "l03334" > < / a > < span class = "lineno" > 3334< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l03335" > < / a > < span class = "lineno" > 3335< / span >   < span class = "comment" > // Note however that the default algorithm is likely to result in a faster< / span > < / div >
< div class = "line" > < a name = "l03336" > < / a > < span class = "lineno" > 3336< / span >   < span class = "comment" > // solving time because the dual program will have less rows.< / span > < / div >
< div class = "line" > < a name = "l03337" > < / a > < span class = "lineno" > 3337< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > dual;< / div >
< div class = "line" > < a name = "l03338" > < / a > < span class = "lineno" > 3338< / span >   dual.< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ad38b71923c7904791897a23722c157cb" > PopulateFromDual< / a > (*lp, & duplicated_rows_);< / div >
< div class = "line" > < a name = "l03339" > < / a > < span class = "lineno" > 3339< / span >   dual.< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a7054c01679c4d1b7ce846b95937582d6" > Swap< / a > (lp);< / div >
< div class = "line" > < a name = "l03340" > < / a > < span class = "lineno" > 3340< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l03341" > < / a > < span class = "lineno" > 3341< / span >   }< / div >
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< div class = "line" > < a name = "l03342" > < / a > < span class = "lineno" > 3342< / span >   < / div >
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< div class = "line" > < a name = "l03343" > < / a > < span class = "lineno" > 3343< / span >   < span class = "comment" > // Note(user): This assumes that LinearProgram.PopulateFromDual() uses< / span > < / div >
< div class = "line" > < a name = "l03344" > < / a > < span class = "lineno" > 3344< / span >   < span class = "comment" > // the first ColIndex and RowIndex for the rows and columns of the given< / span > < / div >
< div class = "line" > < a name = "l03345" > < / a > < span class = "lineno" > 3345< / span >   < span class = "comment" > // problem.< / span > < / div >
< div class = "line" > < a name = "l03346" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 3346< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > DualizerPreprocessor::RecoverSolution< / a > (< a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03347" > < / a > < span class = "lineno" > 3347< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l03348" > < / a > < span class = "lineno" > 3348< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
< div class = "line" > < a name = "l03349" > < / a > < span class = "lineno" > 3349< / span >   < / div >
< div class = "line" > < a name = "l03350" > < / a > < span class = "lineno" > 3350< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseRow< / a > new_primal_values(primal_num_cols_, 0.0);< / div >
< div class = "line" > < a name = "l03351" > < / a > < span class = "lineno" > 3351< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > VariableStatusRow< / a > new_variable_statuses(primal_num_cols_,< / div >
< div class = "line" > < a name = "l03352" > < / a > < span class = "lineno" > 3352< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > );< / div >
< div class = "line" > < a name = "l03353" > < / a > < span class = "lineno" > 3353< / span >   DCHECK_LE(primal_num_cols_, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ()));< / div >
< div class = "line" > < a name = "l03354" > < / a > < span class = "lineno" > 3354< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < primal_num_cols_; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03355" > < / a > < span class = "lineno" > 3355< / span >   RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab65a327cfc2a74c15fa26b91f19acc64" > ColToRowIndex< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l03356" > < / a > < span class = "lineno" > 3356< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > lower = variable_lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03357" > < / a > < span class = "lineno" > 3357< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > upper = variable_upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03358" > < / a > < span class = "lineno" > 3358< / span >   < / div >
< div class = "line" > < a name = "l03359" > < / a > < span class = "lineno" > 3359< / span >   < span class = "comment" > // The new variable value corresponds to the dual value of the dual.< / span > < / div >
< div class = "line" > < a name = "l03360" > < / a > < span class = "lineno" > 3360< / span >   < span class = "comment" > // The shift applied during presolve needs to be removed.< / span > < / div >
< div class = "line" > < a name = "l03361" > < / a > < span class = "lineno" > 3361< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > shift = MinInMagnitudeOrZeroIfInfinite(lower, upper);< / div >
< div class = "line" > < a name = "l03362" > < / a > < span class = "lineno" > 3362< / span >   new_primal_values[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] + shift;< / div >
< div class = "line" > < a name = "l03363" > < / a > < span class = "lineno" > 3363< / span >   < / div >
< div class = "line" > < a name = "l03364" > < / a > < span class = "lineno" > 3364< / span >   < span class = "comment" > // A variable will be VariableStatus::BASIC if the dual constraint is not.< / span > < / div >
< div class = "line" > < a name = "l03365" > < / a > < span class = "lineno" > 3365< / span >   < span class = "keywordflow" > if< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae4ac03f6c9f00665644e868dd1fb9f1e" > ConstraintStatus::BASIC< / a > ) {< / div >
< div class = "line" > < a name = "l03366" > < / a > < span class = "lineno" > 3366< / span >   new_variable_statuses[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ;< / div >
< div class = "line" > < a name = "l03367" > < / a > < span class = "lineno" > 3367< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l03368" > < / a > < span class = "lineno" > 3368< / span >   < span class = "comment" > // Otherwise, the dual value must be zero (if the solution is feasible),< / span > < / div >
< div class = "line" > < a name = "l03369" > < / a > < span class = "lineno" > 3369< / span >   < span class = "comment" > // and the variable is at an exact bound or zero if it is< / span > < / div >
< div class = "line" > < a name = "l03370" > < / a > < span class = "lineno" > 3370< / span >   < span class = "comment" > // VariableStatus::FREE. Note that this works because the bounds are< / span > < / div >
< div class = "line" > < a name = "l03371" > < / a > < span class = "lineno" > 3371< / span >   < span class = "comment" > // shifted to 0.0 in the presolve!< / span > < / div >
< div class = "line" > < a name = "l03372" > < / a > < span class = "lineno" > 3372< / span >   new_variable_statuses[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = ComputeVariableStatus(shift, lower, upper);< / div >
< div class = "line" > < a name = "l03373" > < / a > < span class = "lineno" > 3373< / span >   }< / div >
< div class = "line" > < a name = "l03374" > < / a > < span class = "lineno" > 3374< / span >   }< / div >
< div class = "line" > < a name = "l03375" > < / a > < span class = "lineno" > 3375< / span >   < / div >
< div class = "line" > < a name = "l03376" > < / a > < span class = "lineno" > 3376< / span >   < span class = "comment" > // A basic variable that corresponds to slack/surplus variable is the same as< / span > < / div >
< div class = "line" > < a name = "l03377" > < / a > < span class = "lineno" > 3377< / span >   < span class = "comment" > // a basic row. The new variable status (that was just set to< / span > < / div >
< div class = "line" > < a name = "l03378" > < / a > < span class = "lineno" > 3378< / span >   < span class = "comment" > // VariableStatus::BASIC above)< / span > < / div >
< div class = "line" > < a name = "l03379" > < / a > < span class = "lineno" > 3379< / span >   < span class = "comment" > // needs to be corrected and depends on the variable type (slack/surplus).< / span > < / div >
< div class = "line" > < a name = "l03380" > < / a > < span class = "lineno" > 3380< / span >   < span class = "keyword" > const< / span > ColIndex begin = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (primal_num_rows_);< / div >
< div class = "line" > < a name = "l03381" > < / a > < span class = "lineno" > 3381< / span >   < span class = "keyword" > const< / span > ColIndex end = dual_status_correspondence_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
< div class = "line" > < a name = "l03382" > < / a > < span class = "lineno" > 3382< / span >   DCHECK_GE(solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > (), end);< / div >
< div class = "line" > < a name = "l03383" > < / a > < span class = "lineno" > 3383< / span >   DCHECK_EQ(end - begin, slack_or_surplus_mapping_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ());< / div >
< div class = "line" > < a name = "l03384" > < / a > < span class = "lineno" > 3384< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > (begin); < a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > < end; ++< a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ) {< / div >
< div class = "line" > < a name = "l03385" > < / a > < span class = "lineno" > 3385< / span >   < span class = "keywordflow" > if< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ] == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ) {< / div >
< div class = "line" > < a name = "l03386" > < / a > < span class = "lineno" > 3386< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = slack_or_surplus_mapping_[< a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > - begin];< / div >
< div class = "line" > < a name = "l03387" > < / a > < span class = "lineno" > 3387< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > = dual_status_correspondence_[< a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ];< / div >
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< div class = "line" > < a name = "l03388" > < / a > < span class = "lineno" > 3388< / span >   < / div >
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< div class = "line" > < a name = "l03389" > < / a > < span class = "lineno" > 3389< / span >   < span class = "comment" > // The new variable value is set to its exact bound because the dual< / span > < / div >
< div class = "line" > < a name = "l03390" > < / a > < span class = "lineno" > 3390< / span >   < span class = "comment" > // variable value can be imprecise.< / span > < / div >
< div class = "line" > < a name = "l03391" > < / a > < span class = "lineno" > 3391< / span >   new_variable_statuses[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > ;< / div >
< div class = "line" > < a name = "l03392" > < / a > < span class = "lineno" > 3392< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > ||< / div >
< div class = "line" > < a name = "l03393" > < / a > < span class = "lineno" > 3393< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > == < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > ) {< / div >
< div class = "line" > < a name = "l03394" > < / a > < span class = "lineno" > 3394< / span >   new_primal_values[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = variable_upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03395" > < / a > < span class = "lineno" > 3395< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l03396" > < / a > < span class = "lineno" > 3396< / span >   DCHECK_EQ(< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > , < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > );< / div >
< div class = "line" > < a name = "l03397" > < / a > < span class = "lineno" > 3397< / span >   new_primal_values[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = variable_lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03398" > < / a > < span class = "lineno" > 3398< / span >   }< / div >
< div class = "line" > < a name = "l03399" > < / a > < span class = "lineno" > 3399< / span >   }< / div >
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< div class = "line" > < a name = "l03400" > < / a > < span class = "lineno" > 3400< / span >   }< / div >
< div class = "line" > < a name = "l03401" > < / a > < span class = "lineno" > 3401< / span >   < / div >
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< div class = "line" > < a name = "l03402" > < / a > < span class = "lineno" > 3402< / span >   < span class = "comment" > // Note the < = in the DCHECK, since we may need to add variables when taking< / span > < / div >
< div class = "line" > < a name = "l03403" > < / a > < span class = "lineno" > 3403< / span >   < span class = "comment" > // the dual.< / span > < / div >
< div class = "line" > < a name = "l03404" > < / a > < span class = "lineno" > 3404< / span >   DCHECK_LE(primal_num_rows_, < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab65a327cfc2a74c15fa26b91f19acc64" > ColToRowIndex< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ()));< / div >
< div class = "line" > < a name = "l03405" > < / a > < span class = "lineno" > 3405< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > DenseColumn< / a > new_dual_values(primal_num_rows_, 0.0);< / div >
< div class = "line" > < a name = "l03406" > < / a > < span class = "lineno" > 3406< / span >   < a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > ConstraintStatusColumn< / a > new_constraint_statuses(primal_num_rows_,< / div >
< div class = "line" > < a name = "l03407" > < / a > < span class = "lineno" > 3407< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a88c189a42c87aa49d667fc8ab76bc323" > ConstraintStatus::FREE< / a > );< / div >
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< div class = "line" > < a name = "l03408" > < / a > < span class = "lineno" > 3408< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l03409" > < / a > < span class = "lineno" > 3409< / span >   < span class = "comment" > // Note that the sign need to be corrected because of the special behavior of< / span > < / div >
< div class = "line" > < a name = "l03410" > < / a > < span class = "lineno" > 3410< / span >   < span class = "comment" > // PopulateFromDual() on a maximization problem, see the comment in the< / span > < / div >
< div class = "line" > < a name = "l03411" > < / a > < span class = "lineno" > 3411< / span >   < span class = "comment" > // declaration of PopulateFromDual().< / span > < / div >
< div class = "line" > < a name = "l03412" > < / a > < span class = "lineno" > 3412< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > sign = primal_is_maximization_problem_ ? -1 : 1;< / div >
< div class = "line" > < a name = "l03413" > < / a > < span class = "lineno" > 3413< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < primal_num_rows_; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l03414" > < / a > < span class = "lineno" > 3414< / span >   < span class = "keyword" > const< / span > ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l03415" > < / a > < span class = "lineno" > 3415< / span >   new_dual_values[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = sign * solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03416" > < / a > < span class = "lineno" > 3416< / span >   < / div >
< div class = "line" > < a name = "l03417" > < / a > < span class = "lineno" > 3417< / span >   < span class = "comment" > // A constraint will be ConstraintStatus::BASIC if the dual variable is not.< / span > < / div >
< div class = "line" > < a name = "l03418" > < / a > < span class = "lineno" > 3418< / span >   < span class = "keywordflow" > if< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ) {< / div >
< div class = "line" > < a name = "l03419" > < / a > < span class = "lineno" > 3419< / span >   new_constraint_statuses[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae4ac03f6c9f00665644e868dd1fb9f1e" > ConstraintStatus::BASIC< / a > ;< / div >
< div class = "line" > < a name = "l03420" > < / a > < span class = "lineno" > 3420< / span >   < span class = "keywordflow" > if< / span > (duplicated_rows_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l03421" > < / a > < span class = "lineno" > 3421< / span >   < span class = "keywordflow" > if< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [duplicated_rows_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]] ==< / div >
< div class = "line" > < a name = "l03422" > < / a > < span class = "lineno" > 3422< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > ) {< / div >
< div class = "line" > < a name = "l03423" > < / a > < span class = "lineno" > 3423< / span >   < span class = "comment" > // The duplicated row is always about the lower bound.< / span > < / div >
< div class = "line" > < a name = "l03424" > < / a > < span class = "lineno" > 3424< / span >   new_constraint_statuses[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l03425" > < / a > < span class = "lineno" > 3425< / span >   }< / div >
< div class = "line" > < a name = "l03426" > < / a > < span class = "lineno" > 3426< / span >   }< / div >
< div class = "line" > < a name = "l03427" > < / a > < span class = "lineno" > 3427< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l03428" > < / a > < span class = "lineno" > 3428< / span >   < span class = "comment" > // ConstraintStatus::AT_LOWER_BOUND/ConstraintStatus::AT_UPPER_BOUND/< / span > < / div >
< div class = "line" > < a name = "l03429" > < / a > < span class = "lineno" > 3429< / span >   < span class = "comment" > // ConstraintStatus::FIXED depend on the type of the constraint at this< / span > < / div >
< div class = "line" > < a name = "l03430" > < / a > < span class = "lineno" > 3430< / span >   < span class = "comment" > // position.< / span > < / div >
< div class = "line" > < a name = "l03431" > < / a > < span class = "lineno" > 3431< / span >   new_constraint_statuses[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] =< / div >
< div class = "line" > < a name = "l03432" > < / a > < span class = "lineno" > 3432< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab7a106449441d3fd61aa70916a147a7d" > VariableToConstraintStatus< / a > (dual_status_correspondence_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
< div class = "line" > < a name = "l03433" > < / a > < span class = "lineno" > 3433< / span >   }< / div >
< div class = "line" > < a name = "l03434" > < / a > < span class = "lineno" > 3434< / span >   < / div >
< div class = "line" > < a name = "l03435" > < / a > < span class = "lineno" > 3435< / span >   < span class = "comment" > // If the original row was duplicated, we need to take into account the< / span > < / div >
< div class = "line" > < a name = "l03436" > < / a > < span class = "lineno" > 3436< / span >   < span class = "comment" > // value of the corresponding dual column.< / span > < / div >
< div class = "line" > < a name = "l03437" > < / a > < span class = "lineno" > 3437< / span >   < span class = "keywordflow" > if< / span > (duplicated_rows_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > kInvalidCol< / a > ) {< / div >
< div class = "line" > < a name = "l03438" > < / a > < span class = "lineno" > 3438< / span >   new_dual_values[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] +=< / div >
< div class = "line" > < a name = "l03439" > < / a > < span class = "lineno" > 3439< / span >   sign * solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [duplicated_rows_[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]];< / div >
< div class = "line" > < a name = "l03440" > < / a > < span class = "lineno" > 3440< / span >   }< / div >
< div class = "line" > < a name = "l03441" > < / a > < span class = "lineno" > 3441< / span >   < / div >
< div class = "line" > < a name = "l03442" > < / a > < span class = "lineno" > 3442< / span >   < span class = "comment" > // Because non-basic variable values are exactly at one of their bounds, a< / span > < / div >
< div class = "line" > < a name = "l03443" > < / a > < span class = "lineno" > 3443< / span >   < span class = "comment" > // new basic constraint will have a dual value exactly equal to zero.< / span > < / div >
< div class = "line" > < a name = "l03444" > < / a > < span class = "lineno" > 3444< / span >   DCHECK(new_dual_values[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] == 0 ||< / div >
< div class = "line" > < a name = "l03445" > < / a > < span class = "lineno" > 3445< / span >   new_constraint_statuses[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] != < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae4ac03f6c9f00665644e868dd1fb9f1e" > ConstraintStatus::BASIC< / a > );< / div >
< div class = "line" > < a name = "l03446" > < / a > < span class = "lineno" > 3446< / span >   }< / div >
< div class = "line" > < a name = "l03447" > < / a > < span class = "lineno" > 3447< / span >   < / div >
< div class = "line" > < a name = "l03448" > < / a > < span class = "lineno" > 3448< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a15eb0790f4f62ad63676f55e4ba7d2bb" > status< / a > = < a class = "code" href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html#a8b7014a72cd02aa5a12eca1942447c06" > ChangeStatusToDualStatus< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a15eb0790f4f62ad63676f55e4ba7d2bb" > status< / a > );< / div >
< div class = "line" > < a name = "l03449" > < / a > < span class = "lineno" > 3449< / span >   new_primal_values.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ab93f952cf4db5c7f9a59163f933e5bbe" > swap< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > );< / div >
< div class = "line" > < a name = "l03450" > < / a > < span class = "lineno" > 3450< / span >   new_dual_values.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ab93f952cf4db5c7f9a59163f933e5bbe" > swap< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > );< / div >
< div class = "line" > < a name = "l03451" > < / a > < span class = "lineno" > 3451< / span >   new_variable_statuses.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ab93f952cf4db5c7f9a59163f933e5bbe" > swap< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > );< / div >
< div class = "line" > < a name = "l03452" > < / a > < span class = "lineno" > 3452< / span >   new_constraint_statuses.< a class = "code" href = "classgtl_1_1_i_t_i_vector.html#ab93f952cf4db5c7f9a59163f933e5bbe" > swap< / a > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > );< / div >
< div class = "line" > < a name = "l03453" > < / a > < span class = "lineno" > 3453< / span >   }< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l03454" > < / a > < span class = "lineno" > 3454< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l03455" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html#a8b7014a72cd02aa5a12eca1942447c06" > 3455< / a > < / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9" > ProblemStatus< / a > < a class = "code" href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html#a8b7014a72cd02aa5a12eca1942447c06" > DualizerPreprocessor::ChangeStatusToDualStatus< / a > (< / div >
< div class = "line" > < a name = "l03456" > < / a > < span class = "lineno" > 3456< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9" > ProblemStatus< / a > status)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03457" > < / a > < span class = "lineno" > 3457< / span >   < span class = "keywordflow" > switch< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > ) {< / div >
< div class = "line" > < a name = "l03458" > < / a > < span class = "lineno" > 3458< / span >   < span class = "keywordflow" > case< / span > ProblemStatus::PRIMAL_INFEASIBLE:< / div >
< div class = "line" > < a name = "l03459" > < / a > < span class = "lineno" > 3459< / span >   < span class = "keywordflow" > return< / span > ProblemStatus::DUAL_INFEASIBLE;< / div >
< div class = "line" > < a name = "l03460" > < / a > < span class = "lineno" > 3460< / span >   < span class = "keywordflow" > case< / span > ProblemStatus::DUAL_INFEASIBLE:< / div >
< div class = "line" > < a name = "l03461" > < / a > < span class = "lineno" > 3461< / span >   < span class = "keywordflow" > return< / span > ProblemStatus::PRIMAL_INFEASIBLE;< / div >
< div class = "line" > < a name = "l03462" > < / a > < span class = "lineno" > 3462< / span >   < span class = "keywordflow" > case< / span > ProblemStatus::PRIMAL_UNBOUNDED:< / div >
< div class = "line" > < a name = "l03463" > < / a > < span class = "lineno" > 3463< / span >   < span class = "keywordflow" > return< / span > ProblemStatus::DUAL_UNBOUNDED;< / div >
< div class = "line" > < a name = "l03464" > < / a > < span class = "lineno" > 3464< / span >   < span class = "keywordflow" > case< / span > ProblemStatus::DUAL_UNBOUNDED:< / div >
< div class = "line" > < a name = "l03465" > < / a > < span class = "lineno" > 3465< / span >   < span class = "keywordflow" > return< / span > ProblemStatus::PRIMAL_UNBOUNDED;< / div >
< div class = "line" > < a name = "l03466" > < / a > < span class = "lineno" > 3466< / span >   < span class = "keywordflow" > case< / span > ProblemStatus::PRIMAL_FEASIBLE:< / div >
< div class = "line" > < a name = "l03467" > < / a > < span class = "lineno" > 3467< / span >   < span class = "keywordflow" > return< / span > ProblemStatus::DUAL_FEASIBLE;< / div >
< div class = "line" > < a name = "l03468" > < / a > < span class = "lineno" > 3468< / span >   < span class = "keywordflow" > case< / span > ProblemStatus::DUAL_FEASIBLE:< / div >
< div class = "line" > < a name = "l03469" > < / a > < span class = "lineno" > 3469< / span >   < span class = "keywordflow" > return< / span > ProblemStatus::PRIMAL_FEASIBLE;< / div >
< div class = "line" > < a name = "l03470" > < / a > < span class = "lineno" > 3470< / span >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l03471" > < / a > < span class = "lineno" > 3471< / span >   < span class = "keywordflow" > return< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > status< / a > ;< / div >
< div class = "line" > < a name = "l03472" > < / a > < span class = "lineno" > 3472< / span >   }< / div >
< div class = "line" > < a name = "l03473" > < / a > < span class = "lineno" > 3473< / span >   }< / div >
< div class = "line" > < a name = "l03474" > < / a > < span class = "lineno" > 3474< / span >   < / div >
< div class = "line" > < a name = "l03475" > < / a > < span class = "lineno" > 3475< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l03476" > < / a > < span class = "lineno" > 3476< / span >   < span class = "comment" > // ShiftVariableBoundsPreprocessor< / span > < / div >
< div class = "line" > < a name = "l03477" > < / a > < span class = "lineno" > 3477< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l03478" > < / a > < span class = "lineno" > 3478< / span >   < / div >
< div class = "line" > < a name = "l03479" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_shift_variable_bounds_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 3479< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_shift_variable_bounds_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > ShiftVariableBoundsPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l03480" > < / a > < span class = "lineno" > 3480< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l03481" > < / a > < span class = "lineno" > 3481< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l03482" > < / a > < span class = "lineno" > 3482< / span >   < / div >
< div class = "line" > < a name = "l03483" > < / a > < span class = "lineno" > 3483< / span >   < span class = "comment" > // Save the linear program bounds before shifting them.< / span > < / div >
< div class = "line" > < a name = "l03484" > < / a > < span class = "lineno" > 3484< / span >   < span class = "keywordtype" > bool< / span > all_variable_domains_contain_zero = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l03485" > < / a > < span class = "lineno" > 3485< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
< div class = "line" > < a name = "l03486" > < / a > < span class = "lineno" > 3486< / span >   variable_initial_lbs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, 0.0);< / div >
< div class = "line" > < a name = "l03487" > < / a > < span class = "lineno" > 3487< / span >   variable_initial_ubs_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, 0.0);< / div >
< div class = "line" > < a name = "l03488" > < / a > < span class = "lineno" > 3488< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03489" > < / a > < span class = "lineno" > 3489< / span >   variable_initial_lbs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03490" > < / a > < span class = "lineno" > 3490< / span >   variable_initial_ubs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03491" > < / a > < span class = "lineno" > 3491< / span >   < span class = "keywordflow" > if< / span > (0.0 < variable_initial_lbs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] || 0.0 > variable_initial_ubs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l03492" > < / a > < span class = "lineno" > 3492< / span >   all_variable_domains_contain_zero = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l03493" > < / a > < span class = "lineno" > 3493< / span >   }< / div >
< div class = "line" > < a name = "l03494" > < / a > < span class = "lineno" > 3494< / span >   }< / div >
< div class = "line" > < a name = "l03495" > < / a > < span class = "lineno" > 3495< / span >   VLOG(1) < < < span class = "stringliteral" > " Maximum variable bounds magnitude (before shift): " < / span > < / div >
< div class = "line" > < a name = "l03496" > < / a > < span class = "lineno" > 3496< / span >   < < ComputeMaxVariableBoundsMagnitude(*lp);< / div >
< div class = "line" > < a name = "l03497" > < / a > < span class = "lineno" > 3497< / span >   < / div >
< div class = "line" > < a name = "l03498" > < / a > < span class = "lineno" > 3498< / span >   < span class = "comment" > // Abort early if there is nothing to do.< / span > < / div >
< div class = "line" > < a name = "l03499" > < / a > < span class = "lineno" > 3499< / span >   < span class = "keywordflow" > if< / span > (all_variable_domains_contain_zero) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l03500" > < / a > < span class = "lineno" > 3500< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l03501" > < / a > < span class = "lineno" > 3501< / span >   < span class = "comment" > // Shift the variable bounds and compute the changes to the constraint bounds< / span > < / div >
< div class = "line" > < a name = "l03502" > < / a > < span class = "lineno" > 3502< / span >   < span class = "comment" > // and objective offset in a precise way.< / span > < / div >
< div class = "line" > < a name = "l03503" > < / a > < span class = "lineno" > 3503< / span >   < span class = "keywordtype" > int< / span > num_bound_shifts = 0;< / div >
< div class = "line" > < a name = "l03504" > < / a > < span class = "lineno" > 3504< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > num_constraints< / a > ();< / div >
< div class = "line" > < a name = "l03505" > < / a > < span class = "lineno" > 3505< / span >   < a class = "code" href = "classoperations__research_1_1_accurate_sum.html" > KahanSum< / a > objective_offset;< / div >
< div class = "line" > < a name = "l03506" > < / a > < span class = "lineno" > 3506< / span >   < a class = "code" href = "classgtl_1_1_i_t_i_vector.html" > gtl::ITIVector< RowIndex, KahanSum> < / a > row_offsets(num_rows.value());< / div >
< div class = "line" > < a name = "l03507" > < / a > < span class = "lineno" > 3507< / span >   offsets_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, 0.0);< / div >
< div class = "line" > < a name = "l03508" > < / a > < span class = "lineno" > 3508< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03509" > < / a > < span class = "lineno" > 3509< / span >   < span class = "keywordflow" > if< / span > (0.0 < variable_initial_lbs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] || 0.0 > variable_initial_ubs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l03510" > < / a > < span class = "lineno" > 3510< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > offset = MinInMagnitudeOrZeroIfInfinite(< / div >
< div class = "line" > < a name = "l03511" > < / a > < span class = "lineno" > 3511< / span >   variable_initial_lbs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ], variable_initial_ubs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
< div class = "line" > < a name = "l03512" > < / a > < span class = "lineno" > 3512< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a3ad0a2aeb2c7f12fb9d3439a480ffbde" > in_mip_context_< / a > & & lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ab4f3103f39bdbb86151baed2347f7b0a" > IsVariableInteger< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > )) {< / div >
< div class = "line" > < a name = "l03513" > < / a > < span class = "lineno" > 3513< / span >   < span class = "comment" > // In the integer case, we truncate the number because if for instance< / span > < / div >
< div class = "line" > < a name = "l03514" > < / a > < span class = "lineno" > 3514< / span >   < span class = "comment" > // the lower bound is a positive integer + epsilon, we only want to< / span > < / div >
< div class = "line" > < a name = "l03515" > < / a > < span class = "lineno" > 3515< / span >   < span class = "comment" > // shift by the integer and leave the lower bound at epsilon.< / span > < / div >
< div class = "line" > < a name = "l03516" > < / a > < span class = "lineno" > 3516< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l03517" > < / a > < span class = "lineno" > 3517< / span >   < span class = "comment" > // TODO(user): This would not be needed, if we always make the bound< / span > < / div >
< div class = "line" > < a name = "l03518" > < / a > < span class = "lineno" > 3518< / span >   < span class = "comment" > // of an integer variable integer before applying this preprocessor.< / span > < / div >
< div class = "line" > < a name = "l03519" > < / a > < span class = "lineno" > 3519< / span >   offset = trunc(offset);< / div >
< div class = "line" > < a name = "l03520" > < / a > < span class = "lineno" > 3520< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l03521" > < / a > < span class = "lineno" > 3521< / span >   DCHECK_NE(offset, 0.0);< / div >
< div class = "line" > < a name = "l03522" > < / a > < span class = "lineno" > 3522< / span >   }< / div >
< div class = "line" > < a name = "l03523" > < / a > < span class = "lineno" > 3523< / span >   offsets_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = offset;< / div >
< div class = "line" > < a name = "l03524" > < / a > < span class = "lineno" > 3524< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093" > SetVariableBounds< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , variable_initial_lbs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] - offset,< / div >
< div class = "line" > < a name = "l03525" > < / a > < span class = "lineno" > 3525< / span >   variable_initial_ubs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] - offset);< / div >
< div class = "line" > < a name = "l03526" > < / a > < span class = "lineno" > 3526< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_column.html" > SparseColumn< / a > & sparse_column = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > GetSparseColumn< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l03527" > < / a > < span class = "lineno" > 3527< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > SparseColumn::Entry< / a > e : sparse_column) {< / div >
< div class = "line" > < a name = "l03528" > < / a > < span class = "lineno" > 3528< / span >   row_offsets[e.row()].Add(e.coefficient() * offset);< / div >
< div class = "line" > < a name = "l03529" > < / a > < span class = "lineno" > 3529< / span >   }< / div >
< div class = "line" > < a name = "l03530" > < / a > < span class = "lineno" > 3530< / span >   objective_offset.< a class = "code" href = "classoperations__research_1_1_accurate_sum.html#acc8fad1f98b885fa7d0504f4dfc71f08" > Add< / a > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] * offset);< / div >
< div class = "line" > < a name = "l03531" > < / a > < span class = "lineno" > 3531< / span >   ++num_bound_shifts;< / div >
< div class = "line" > < a name = "l03532" > < / a > < span class = "lineno" > 3532< / span >   }< / div >
< div class = "line" > < a name = "l03533" > < / a > < span class = "lineno" > 3533< / span >   }< / div >
< div class = "line" > < a name = "l03534" > < / a > < span class = "lineno" > 3534< / span >   VLOG(1) < < < span class = "stringliteral" > " Maximum variable bounds magnitude (after " < / span > < < num_bound_shifts< / div >
< div class = "line" > < a name = "l03535" > < / a > < span class = "lineno" > 3535< / span >   < < < span class = "stringliteral" > " shifts): " < / span > < < ComputeMaxVariableBoundsMagnitude(*lp);< / div >
< div class = "line" > < a name = "l03536" > < / a > < span class = "lineno" > 3536< / span >   < / div >
< div class = "line" > < a name = "l03537" > < / a > < span class = "lineno" > 3537< / span >   < span class = "comment" > // Apply the changes to the constraint bound and objective offset.< / span > < / div >
< div class = "line" > < a name = "l03538" > < / a > < span class = "lineno" > 3538< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l03539" > < / a > < span class = "lineno" > 3539< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a62b98dec38b6506442f9fc63f1a9b88f" > SetConstraintBounds< / a > (< / div >
< div class = "line" > < a name = "l03540" > < / a > < span class = "lineno" > 3540< / span >   < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > , lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > constraint_lower_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] - row_offsets[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ].Value(),< / div >
< div class = "line" > < a name = "l03541" > < / a > < span class = "lineno" > 3541< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > constraint_upper_bounds< / a > ()[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] - row_offsets[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ].Value());< / div >
< div class = "line" > < a name = "l03542" > < / a > < span class = "lineno" > 3542< / span >   }< / div >
< div class = "line" > < a name = "l03543" > < / a > < span class = "lineno" > 3543< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a2a29cc40908e09b0c565ceea15b77d89" > SetObjectiveOffset< / a > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a81334c7ceae9d68a38fe4d4bf0b7794c" > objective_offset< / a > () + objective_offset.< a class = "code" href = "classoperations__research_1_1_accurate_sum.html#a176a3e919acd979b67cea1ede094cdaa" > Value< / a > ());< / div >
< div class = "line" > < a name = "l03544" > < / a > < span class = "lineno" > 3544< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l03545" > < / a > < span class = "lineno" > 3545< / span >   }< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l03546" > < / a > < span class = "lineno" > 3546< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l03547" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_shift_variable_bounds_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 3547< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_shift_variable_bounds_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > ShiftVariableBoundsPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l03548" > < / a > < span class = "lineno" > 3548< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03549" > < / a > < span class = "lineno" > 3549< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l03550" > < / a > < span class = "lineno" > 3550< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
< div class = "line" > < a name = "l03551" > < / a > < span class = "lineno" > 3551< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
< div class = "line" > < a name = "l03552" > < / a > < span class = "lineno" > 3552< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03553" > < / a > < span class = "lineno" > 3553< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a3ad0a2aeb2c7f12fb9d3439a480ffbde" > in_mip_context_< / a > ) {< / div >
< div class = "line" > < a name = "l03554" > < / a > < span class = "lineno" > 3554< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] += offsets_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03555" > < / a > < span class = "lineno" > 3555< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l03556" > < / a > < span class = "lineno" > 3556< / span >   < span class = "keywordflow" > switch< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l03557" > < / a > < span class = "lineno" > 3557< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > :< / div >
< div class = "line" > < a name = "l03558" > < / a > < span class = "lineno" > 3558< / span >   ABSL_FALLTHROUGH_INTENDED;< / div >
< div class = "line" > < a name = "l03559" > < / a > < span class = "lineno" > 3559< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > :< / div >
< div class = "line" > < a name = "l03560" > < / a > < span class = "lineno" > 3560< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = variable_initial_lbs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03561" > < / a > < span class = "lineno" > 3561< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03562" > < / a > < span class = "lineno" > 3562< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > :< / div >
< div class = "line" > < a name = "l03563" > < / a > < span class = "lineno" > 3563< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = variable_initial_ubs_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03564" > < / a > < span class = "lineno" > 3564< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03565" > < / a > < span class = "lineno" > 3565< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > :< / div >
< div class = "line" > < a name = "l03566" > < / a > < span class = "lineno" > 3566< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] += offsets_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03567" > < / a > < span class = "lineno" > 3567< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03568" > < / a > < span class = "lineno" > 3568< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > :< / div >
< div class = "line" > < a name = "l03569" > < / a > < span class = "lineno" > 3569< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03570" > < / a > < span class = "lineno" > 3570< / span >   }< / div >
< div class = "line" > < a name = "l03571" > < / a > < span class = "lineno" > 3571< / span >   }< / div >
< div class = "line" > < a name = "l03572" > < / a > < span class = "lineno" > 3572< / span >   }< / div >
< div class = "line" > < a name = "l03573" > < / a > < span class = "lineno" > 3573< / span >   }< / div >
< div class = "line" > < a name = "l03574" > < / a > < span class = "lineno" > 3574< / span >   < / div >
< div class = "line" > < a name = "l03575" > < / a > < span class = "lineno" > 3575< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l03576" > < / a > < span class = "lineno" > 3576< / span >   < span class = "comment" > // ScalingPreprocessor< / span > < / div >
< div class = "line" > < a name = "l03577" > < / a > < span class = "lineno" > 3577< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l03578" > < / a > < span class = "lineno" > 3578< / span >   < / div >
< div class = "line" > < a name = "l03579" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_scaling_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 3579< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_scaling_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > ScalingPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l03580" > < / a > < span class = "lineno" > 3580< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l03581" > < / a > < span class = "lineno" > 3581< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l03582" > < / a > < span class = "lineno" > 3582< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .use_scaling()) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l03583" > < / a > < span class = "lineno" > 3583< / span >   < / div >
< div class = "line" > < a name = "l03584" > < / a > < span class = "lineno" > 3584< / span >   < span class = "comment" > // Save the linear program bounds before scaling them.< / span > < / div >
< div class = "line" > < a name = "l03585" > < / a > < span class = "lineno" > 3585< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > ();< / div >
< div class = "line" > < a name = "l03586" > < / a > < span class = "lineno" > 3586< / span >   variable_lower_bounds_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, 0.0);< / div >
< div class = "line" > < a name = "l03587" > < / a > < span class = "lineno" > 3587< / span >   variable_upper_bounds_.< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > assign< / a > (num_cols, 0.0);< / div >
< div class = "line" > < a name = "l03588" > < / a > < span class = "lineno" > 3588< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03589" > < / a > < span class = "lineno" > 3589< / span >   variable_lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > variable_lower_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03590" > < / a > < span class = "lineno" > 3590< / span >   variable_upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > variable_upper_bounds< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03591" > < / a > < span class = "lineno" > 3591< / span >   }< / div >
< div class = "line" > < a name = "l03592" > < / a > < span class = "lineno" > 3592< / span >   < / div >
< div class = "line" > < a name = "l03593" > < / a > < span class = "lineno" > 3593< / span >   < span class = "comment" > // See the doc of these functions for more details.< / span > < / div >
< div class = "line" > < a name = "l03594" > < / a > < span class = "lineno" > 3594< / span >   < span class = "comment" > // It is important to call Scale() before the other two.< / span > < / div >
< div class = "line" > < a name = "l03595" > < / a > < span class = "lineno" > 3595< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ac9c215aa509854e985e62d8cdf0a33cc" > Scale< / a > (lp, & scaler_, < a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > parameters_< / a > .scaling_method());< / div >
< div class = "line" > < a name = "l03596" > < / a > < span class = "lineno" > 3596< / span >   cost_scaling_factor_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ac5df4526af1b9ac31a38e84111d4f13a" > ScaleObjective< / a > ();< / div >
< div class = "line" > < a name = "l03597" > < / a > < span class = "lineno" > 3597< / span >   bound_scaling_factor_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a354fba4c3eaf6cf38ee4f9e78a59f4c1" > ScaleBounds< / a > ();< / div >
< div class = "line" > < a name = "l03598" > < / a > < span class = "lineno" > 3598< / span >   < / div >
< div class = "line" > < a name = "l03599" > < / a > < span class = "lineno" > 3599< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l03600" > < / a > < span class = "lineno" > 3600< / span >   }< / div >
< div class = "line" > < a name = "l03601" > < / a > < span class = "lineno" > 3601< / span >   < / div >
< div class = "line" > < a name = "l03602" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_scaling_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 3602< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_scaling_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > ScalingPreprocessor::RecoverSolution< / a > (< a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03603" > < / a > < span class = "lineno" > 3603< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l03604" > < / a > < span class = "lineno" > 3604< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
< div class = "line" > < a name = "l03605" > < / a > < span class = "lineno" > 3605< / span >   < / div >
< div class = "line" > < a name = "l03606" > < / a > < span class = "lineno" > 3606< / span >   scaler_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix_scaler.html#a57b3fbbeb1e0b5a127cc94694aad586e" > ScaleRowVector< / a > (< span class = "keyword" > false< / span > , & (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > ));< / div >
< div class = "line" > < a name = "l03607" > < / a > < span class = "lineno" > 3607< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > (); ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03608" > < / a > < span class = "lineno" > 3608< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] *= bound_scaling_factor_;< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l03609" > < / a > < span class = "lineno" > 3609< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l03610" > < / a > < span class = "lineno" > 3610< / span >   < / div >
< div class = "line" > < a name = "l03611" > < / a > < span class = "lineno" > 3611< / span >   scaler_.< a class = "code" href = "classoperations__research_1_1glop_1_1_sparse_matrix_scaler.html#a150a7b18071b89f90d47aa00b679edc9" > ScaleColumnVector< / a > (< span class = "keyword" > false< / span > , & (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > ));< / div >
< div class = "line" > < a name = "l03612" > < / a > < span class = "lineno" > 3612< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > (); ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l03613" > < / a > < span class = "lineno" > 3613< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] *= cost_scaling_factor_;< / div >
< div class = "line" > < a name = "l03614" > < / a > < span class = "lineno" > 3614< / span >   }< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l03615" > < / a > < span class = "lineno" > 3615< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l03616" > < / a > < span class = "lineno" > 3616< / span >   < span class = "comment" > // Make sure the variable are at they exact bounds according to their status.< / span > < / div >
< div class = "line" > < a name = "l03617" > < / a > < span class = "lineno" > 3617< / span >   < span class = "comment" > // This just remove a really low error (about 1e-15) but allows to keep the< / span > < / div >
< div class = "line" > < a name = "l03618" > < / a > < span class = "lineno" > 3618< / span >   < span class = "comment" > // variables at their exact bounds.< / span > < / div >
< div class = "line" > < a name = "l03619" > < / a > < span class = "lineno" > 3619< / span >   < span class = "keyword" > const< / span > ColIndex num_cols = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
< div class = "line" > < a name = "l03620" > < / a > < span class = "lineno" > 3620< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < num_cols; ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03621" > < / a > < span class = "lineno" > 3621< / span >   < span class = "keywordflow" > switch< / span > (solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]) {< / div >
< div class = "line" > < a name = "l03622" > < / a > < span class = "lineno" > 3622< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > :< / div >
< div class = "line" > < a name = "l03623" > < / a > < span class = "lineno" > 3623< / span >   ABSL_FALLTHROUGH_INTENDED;< / div >
< div class = "line" > < a name = "l03624" > < / a > < span class = "lineno" > 3624< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > VariableStatus::FIXED_VALUE< / a > :< / div >
< div class = "line" > < a name = "l03625" > < / a > < span class = "lineno" > 3625< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = variable_upper_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03626" > < / a > < span class = "lineno" > 3626< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03627" > < / a > < span class = "lineno" > 3627< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > :< / div >
< div class = "line" > < a name = "l03628" > < / a > < span class = "lineno" > 3628< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > [< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = variable_lower_bounds_[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03629" > < / a > < span class = "lineno" > 3629< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03630" > < / a > < span class = "lineno" > 3630< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > :< / div >
< div class = "line" > < a name = "l03631" > < / a > < span class = "lineno" > 3631< / span >   ABSL_FALLTHROUGH_INTENDED;< / div >
< div class = "line" > < a name = "l03632" > < / a > < span class = "lineno" > 3632< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > VariableStatus::BASIC< / a > :< / div >
< div class = "line" > < a name = "l03633" > < / a > < span class = "lineno" > 3633< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03634" > < / a > < span class = "lineno" > 3634< / span >   }< / div >
< div class = "line" > < a name = "l03635" > < / a > < span class = "lineno" > 3635< / span >   }< / div >
< div class = "line" > < a name = "l03636" > < / a > < span class = "lineno" > 3636< / span >   }< / div >
< div class = "line" > < a name = "l03637" > < / a > < span class = "lineno" > 3637< / span >   < / div >
< div class = "line" > < a name = "l03638" > < / a > < span class = "lineno" > 3638< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l03639" > < / a > < span class = "lineno" > 3639< / span >   < span class = "comment" > // ToMinimizationPreprocessor< / span > < / div >
< div class = "line" > < a name = "l03640" > < / a > < span class = "lineno" > 3640< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l03641" > < / a > < span class = "lineno" > 3641< / span >   < / div >
< div class = "line" > < a name = "l03642" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_to_minimization_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 3642< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_to_minimization_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > ToMinimizationPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l03643" > < / a > < span class = "lineno" > 3643< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l03644" > < / a > < span class = "lineno" > 3644< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l03645" > < / a > < span class = "lineno" > 3645< / span >   < span class = "keywordflow" > if< / span > (lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#accdd045ec09206640c2338524da77d23" > IsMaximizationProblem< / a > ()) {< / div >
< div class = "line" > < a name = "l03646" > < / a > < span class = "lineno" > 3646< / span >   < span class = "keywordflow" > for< / span > (ColIndex < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > (0); < a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > num_variables< / a > (); ++< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l03647" > < / a > < span class = "lineno" > 3647< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > Fractional< / a > coeff = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > objective_coefficients< / a > ()[< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ];< / div >
< div class = "line" > < a name = "l03648" > < / a > < span class = "lineno" > 3648< / span >   < span class = "keywordflow" > if< / span > (coeff != 0.0) {< / div >
< div class = "line" > < a name = "l03649" > < / a > < span class = "lineno" > 3649< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9" > SetObjectiveCoefficient< / a > (< a class = "code" href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , -coeff);< / div >
< div class = "line" > < a name = "l03650" > < / a > < span class = "lineno" > 3650< / span >   }< / div >
< div class = "line" > < a name = "l03651" > < / a > < span class = "lineno" > 3651< / span >   }< / div >
< div class = "line" > < a name = "l03652" > < / a > < span class = "lineno" > 3652< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#ae3201a343d8df987411b55830bff7fa3" > SetMaximizationProblem< / a > (< span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l03653" > < / a > < span class = "lineno" > 3653< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a2a29cc40908e09b0c565ceea15b77d89" > SetObjectiveOffset< / a > (-lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a81334c7ceae9d68a38fe4d4bf0b7794c" > objective_offset< / a > ());< / div >
< div class = "line" > < a name = "l03654" > < / a > < span class = "lineno" > 3654< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a01a5a464aad9b500e5f07b0457520762" > SetObjectiveScalingFactor< / a > (-lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#adf55bb4fcaab95674f072cb528d426a0" > objective_scaling_factor< / a > ());< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l03655" > < / a > < span class = "lineno" > 3655< / span >   }< / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l03656" > < / a > < span class = "lineno" > 3656< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l03657" > < / a > < span class = "lineno" > 3657< / span >   }< / div >
< div class = "line" > < a name = "l03658" > < / a > < span class = "lineno" > 3658< / span >   < / div >
< div class = "line" > < a name = "l03659" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_to_minimization_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 3659< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_to_minimization_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > ToMinimizationPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l03660" > < / a > < span class = "lineno" > 3660< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {}< / div >
2020-09-02 09:42:51 +02:00
< div class = "line" > < a name = "l03661" > < / a > < span class = "lineno" > 3661< / span >   < / div >
2020-10-09 12:00:09 +02:00
< div class = "line" > < a name = "l03662" > < / a > < span class = "lineno" > 3662< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l03663" > < / a > < span class = "lineno" > 3663< / span >   < span class = "comment" > // AddSlackVariablesPreprocessor< / span > < / div >
< div class = "line" > < a name = "l03664" > < / a > < span class = "lineno" > 3664< / span >   < span class = "comment" > // --------------------------------------------------------< / span > < / div >
< div class = "line" > < a name = "l03665" > < / a > < span class = "lineno" > 3665< / span >   < / div >
< div class = "line" > < a name = "l03666" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_add_slack_variables_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > 3666< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_add_slack_variables_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > AddSlackVariablesPreprocessor::Run< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html" > LinearProgram< / a > * lp) {< / div >
< div class = "line" > < a name = "l03667" > < / a > < span class = "lineno" > 3667< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l03668" > < / a > < span class = "lineno" > 3668< / span >   < a class = "code" href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > (lp, < span class = "keyword" > false< / span > );< / div >
< div class = "line" > < a name = "l03669" > < / a > < span class = "lineno" > 3669< / span >   lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#aa23a76f0f582369176688b458cda07dc" > AddSlackVariablesWhereNecessary< / a > (< / div >
< div class = "line" > < a name = "l03670" > < / a > < span class = "lineno" > 3670< / span >   < span class = "comment" > /*detect_integer_constraints=*/< / span > < span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l03671" > < / a > < span class = "lineno" > 3671< / span >   first_slack_col_ = lp-> < a class = "code" href = "classoperations__research_1_1glop_1_1_linear_program.html#a339d5516d8c29986233765e910257b4d" > GetFirstSlackVariable< / a > ();< / div >
< div class = "line" > < a name = "l03672" > < / a > < span class = "lineno" > 3672< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l03673" > < / a > < span class = "lineno" > 3673< / span >   }< / div >
< div class = "line" > < a name = "l03674" > < / a > < span class = "lineno" > 3674< / span >   < / div >
< div class = "line" > < a name = "l03675" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1glop_1_1_add_slack_variables_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > 3675< / a > < / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "classoperations__research_1_1glop_1_1_add_slack_variables_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > AddSlackVariablesPreprocessor::RecoverSolution< / a > (< / div >
< div class = "line" > < a name = "l03676" > < / a > < span class = "lineno" > 3676< / span >   < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html" > ProblemSolution< / a > * solution)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l03677" > < / a > < span class = "lineno" > 3677< / span >   < a class = "code" href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > (< a class = "code" href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > time_limit_< / a > );< / div >
< div class = "line" > < a name = "l03678" > < / a > < span class = "lineno" > 3678< / span >   < a class = "code" href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > (solution);< / div >
< div class = "line" > < a name = "l03679" > < / a > < span class = "lineno" > 3679< / span >   < / div >
< div class = "line" > < a name = "l03680" > < / a > < span class = "lineno" > 3680< / span >   < span class = "comment" > // Compute constraint statuses from statuses of slack variables.< / span > < / div >
< div class = "line" > < a name = "l03681" > < / a > < span class = "lineno" > 3681< / span >   < span class = "keyword" > const< / span > RowIndex num_rows = solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > dual_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > size< / a > ();< / div >
< div class = "line" > < a name = "l03682" > < / a > < span class = "lineno" > 3682< / span >   < span class = "keywordflow" > for< / span > (RowIndex < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > (0); < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < num_rows; ++< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ) {< / div >
< div class = "line" > < a name = "l03683" > < / a > < span class = "lineno" > 3683< / span >   < span class = "keyword" > const< / span > ColIndex slack_col = first_slack_col_ + < a class = "code" href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > RowToColIndex< / a > (< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l03684" > < / a > < span class = "lineno" > 3684< / span >   < span class = "keyword" > const< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > VariableStatus< / a > variable_status =< / div >
< div class = "line" > < a name = "l03685" > < / a > < span class = "lineno" > 3685< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > [slack_col];< / div >
< div class = "line" > < a name = "l03686" > < / a > < span class = "lineno" > 3686< / span >   < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9" > ConstraintStatus< / a > constraint_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a88c189a42c87aa49d667fc8ab76bc323" > ConstraintStatus::FREE< / a > ;< / div >
< div class = "line" > < a name = "l03687" > < / a > < span class = "lineno" > 3687< / span >   < span class = "comment" > // The slack variables have reversed bounds - if the value of the variable< / span > < / div >
< div class = "line" > < a name = "l03688" > < / a > < span class = "lineno" > 3688< / span >   < span class = "comment" > // is at one bound, the value of the constraint is at the opposite bound.< / span > < / div >
< div class = "line" > < a name = "l03689" > < / a > < span class = "lineno" > 3689< / span >   < span class = "keywordflow" > switch< / span > (variable_status) {< / div >
< div class = "line" > < a name = "l03690" > < / a > < span class = "lineno" > 3690< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > VariableStatus::AT_LOWER_BOUND< / a > :< / div >
< div class = "line" > < a name = "l03691" > < / a > < span class = "lineno" > 3691< / span >   constraint_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > ConstraintStatus::AT_UPPER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l03692" > < / a > < span class = "lineno" > 3692< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03693" > < / a > < span class = "lineno" > 3693< / span >   < span class = "keywordflow" > case< / span > < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > VariableStatus::AT_UPPER_BOUND< / a > :< / div >
< div class = "line" > < a name = "l03694" > < / a > < span class = "lineno" > 3694< / span >   constraint_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > ConstraintStatus::AT_LOWER_BOUND< / a > ;< / div >
< div class = "line" > < a name = "l03695" > < / a > < span class = "lineno" > 3695< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03696" > < / a > < span class = "lineno" > 3696< / span >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l03697" > < / a > < span class = "lineno" > 3697< / span >   constraint_status = < a class = "code" href = "namespaceoperations__research_1_1glop.html#ab7a106449441d3fd61aa70916a147a7d" > VariableToConstraintStatus< / a > (variable_status);< / div >
< div class = "line" > < a name = "l03698" > < / a > < span class = "lineno" > 3698< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l03699" > < / a > < span class = "lineno" > 3699< / span >   }< / div >
< div class = "line" > < a name = "l03700" > < / a > < span class = "lineno" > 3700< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > constraint_statuses< / a > [< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = constraint_status;< / div >
< div class = "line" > < a name = "l03701" > < / a > < span class = "lineno" > 3701< / span >   }< / div >
< div class = "line" > < a name = "l03702" > < / a > < span class = "lineno" > 3702< / span >   < / div >
< div class = "line" > < a name = "l03703" > < / a > < span class = "lineno" > 3703< / span >   < span class = "comment" > // Drop the primal values and variable statuses for slack variables.< / span > < / div >
< div class = "line" > < a name = "l03704" > < / a > < span class = "lineno" > 3704< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > primal_values< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (first_slack_col_, 0.0);< / div >
< div class = "line" > < a name = "l03705" > < / a > < span class = "lineno" > 3705< / span >   solution-> < a class = "code" href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > variable_statuses< / a > .< a class = "code" href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > resize< / a > (first_slack_col_, < a class = "code" href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > VariableStatus::FREE< / a > );< / div >
< div class = "line" > < a name = "l03706" > < / a > < span class = "lineno" > 3706< / span >   }< / div >
< div class = "line" > < a name = "l03707" > < / a > < span class = "lineno" > 3707< / span >   < / div >
< div class = "line" > < a name = "l03708" > < / a > < span class = "lineno" > 3708< / span >   } < span class = "comment" > // namespace glop< / span > < / div >
< div class = "line" > < a name = "l03709" > < / a > < span class = "lineno" > 3709< / span >   } < span class = "comment" > // namespace operations_research< / span > < / div >
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< / div > <!-- fragment --> < / div > <!-- contents -->
< / div > <!-- doc - content -->
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< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_implied_free_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_implied_free_preprocessor.html" > operations_research::glop::ImpliedFreePreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00563" > preprocessor.h:563< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_ac5df4526af1b9ac31a38e84111d4f13a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#ac5df4526af1b9ac31a38e84111d4f13a" > operations_research::glop::LinearProgram::ScaleObjective< / a > < / div > < div class = "ttdeci" > Fractional ScaleObjective()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l01134" > lp_data.cc:1134< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_free_constraint_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_free_constraint_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::FreeConstraintPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02055" > preprocessor.cc:2055< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_row_deletion_helper_html_a8b572400ae17e537ba55eb01667dd5c7" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8b572400ae17e537ba55eb01667dd5c7" > operations_research::glop::RowDeletionHelper::IsRowMarked< / a > < / div > < div class = "ttdeci" > bool IsRowMarked(RowIndex row) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00215" > preprocessor.h:215< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_shift_variable_bounds_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_shift_variable_bounds_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::ShiftVariableBoundsPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03479" > preprocessor.cc:3479< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "apreprocessor_8cc_html_aa9d6c98fdf8d89b0e2321fda02adc82c" > < div class = "ttname" > < a href = "preprocessor_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < / div > < div class = "ttdeci" > ColIndex col< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00423" > preprocessor.cc:423< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_afda9b9b5e858d0c466d2a6293361004a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#afda9b9b5e858d0c466d2a6293361004a" > operations_research::glop::LinearProgram::num_constraints< / a > < / div > < div class = "ttdeci" > RowIndex num_constraints() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00208" > lp_data.h:208< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_doubleton_free_column_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_doubleton_free_column_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::DoubletonFreeColumnPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01634" > preprocessor.cc:1634< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ad59b85e44037bd502a5d8bd3fe16c0f9a88c189a42c87aa49d667fc8ab76bc323" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a88c189a42c87aa49d667fc8ab76bc323" > operations_research::glop::ConstraintStatus::FREE< / a > < / div > < div class = "ttdeci" > @ FREE< / div > < / div >
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< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_matrix_html_ae1b90982a83e1b025ebbc1c446980640" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#ae1b90982a83e1b025ebbc1c446980640" > operations_research::glop::SparseMatrix::PopulateFromZero< / a > < / div > < div class = "ttdeci" > void PopulateFromZero(RowIndex num_rows, ColIndex num_cols)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8cc_source.html#l00164" > sparse.cc:164< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_ad38b71923c7904791897a23722c157cb" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#ad38b71923c7904791897a23722c157cb" > operations_research::glop::LinearProgram::PopulateFromDual< / a > < / div > < div class = "ttdeci" > void PopulateFromDual(const LinearProgram & dual, RowToColMapping *duplicated_rows)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00733" > lp_data.cc:733< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_deletion_helper_html_a43d852970601d1a979844a0aae79ed3d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a43d852970601d1a979844a0aae79ed3d" > operations_research::glop::ColumnDeletionHelper::MarkColumnForDeletionWithState< / a > < / div > < div class = "ttdeci" > void MarkColumnForDeletionWithState(ColIndex col, Fractional value, VariableStatus status)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00194" > preprocessor.cc:194< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca14dc61f52267ea9b476f64c1d4d975b1" > operations_research::glop::VariableStatus::AT_UPPER_BOUND< / a > < / div > < div class = "ttdeci" > @ AT_UPPER_BOUND< / div > < / div >
< div class = "ttc" id = "apreprocessor_8cc_html_a72ecc219428436501225dd42f67c73a9" > < div class = "ttname" > < a href = "preprocessor_8cc.html#a72ecc219428436501225dd42f67c73a9" > scaled_cost< / a > < / div > < div class = "ttdeci" > Fractional scaled_cost< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00425" > preprocessor.cc:425< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_strict_i_t_i_vector_html_a64b6b04f3a519d2c61d49daaa88bf06e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a64b6b04f3a519d2c61d49daaa88bf06e" > operations_research::glop::StrictITIVector::resize< / a > < / div > < div class = "ttdeci" > void resize(IntType size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00269" > lp_types.h:269< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_aa23a76f0f582369176688b458cda07dc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#aa23a76f0f582369176688b458cda07dc" > operations_research::glop::LinearProgram::AddSlackVariablesWhereNecessary< / a > < / div > < div class = "ttdeci" > void AddSlackVariablesWhereNecessary(bool detect_integer_constraints)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00666" > lp_data.cc:666< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_shift_variable_bounds_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_shift_variable_bounds_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::ShiftVariableBoundsPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03547" > preprocessor.cc:3547< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "aalldiff__cst_8cc_html_a021e695f54a13bd809c34b2f4ca87c37" > < div class = "ttname" > < a href = "alldiff__cst_8cc.html#a021e695f54a13bd809c34b2f4ca87c37" > min< / a > < / div > < div class = "ttdeci" > int64 min< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "alldiff__cst_8cc_source.html#l00138" > alldiff_cst.cc:138< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a4dc8ae0f97c4110f3cc770715b2bbd12" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a4dc8ae0f97c4110f3cc770715b2bbd12" > operations_research::glop::DenseRow< / a > < / div > < div class = "ttdeci" > StrictITIVector< ColIndex, Fractional > DenseRow< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00299" > lp_types.h:299< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae4ac03f6c9f00665644e868dd1fb9f1e" > operations_research::glop::VariableStatus::BASIC< / a > < / div > < div class = "ttdeci" > @ BASIC< / div > < / div >
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< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_fixed_variable_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_fixed_variable_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::FixedVariablePreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01055" > preprocessor.cc:1055< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "aalldiff__cst_8cc_html_a9d0c202d5fdd62f4fa2c613339ff168a" > < div class = "ttname" > < a href = "alldiff__cst_8cc.html#a9d0c202d5fdd62f4fa2c613339ff168a" > max< / a > < / div > < div class = "ttdeci" > int64 max< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "alldiff__cst_8cc_source.html#l00139" > alldiff_cst.cc:139< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::ForcingAndImpliedFreeConstraintPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01232" > preprocessor.cc:1232< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ac9c215aa509854e985e62d8cdf0a33cc" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ac9c215aa509854e985e62d8cdf0a33cc" > operations_research::glop::Scale< / a > < / div > < div class = "ttdeci" > void Scale(LinearProgram *lp, SparseMatrixScaler *scaler)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data__utils_8cc_source.html#l00052" > lp_data_utils.cc:52< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_problem_solution_html_a15eb0790f4f62ad63676f55e4ba7d2bb" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_problem_solution.html#a15eb0790f4f62ad63676f55e4ba7d2bb" > operations_research::glop::ProblemSolution::status< / a > < / div > < div class = "ttdeci" > ProblemStatus status< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00655" > lp_data.h:655< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor.html" > operations_research::glop::ForcingAndImpliedFreeConstraintPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00517" > preprocessor.h:517< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9a88ec4386a3c49b50819358a579fb9adb" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9a88ec4386a3c49b50819358a579fb9adb" > operations_research::glop::ProblemStatus::ABNORMAL< / a > < / div > < div class = "ttdeci" > @ ABNORMAL< / div > < / div >
< div class = "ttc" id = "apreprocessor_8cc_html_a2babe18010525bbf13c2fa5a959971e4" > < div class = "ttname" > < a href = "preprocessor_8cc.html#a2babe18010525bbf13c2fa5a959971e4" > num_entries< / a > < / div > < div class = "ttdeci" > EntryIndex num_entries< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01306" > preprocessor.cc:1306< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_row_deletion_helper_html_aa71d36872f416feaa853788a7a7a7ef8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#aa71d36872f416feaa853788a7a7a7ef8" > operations_research::glop::RowDeletionHelper::Clear< / a > < / div > < div class = "ttdeci" > void Clear()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00238" > preprocessor.cc:238< / a > < / div > < / div >
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< div class = "ttc" id = "arouting__search_8cc_html_a204f9b990226e8288e1aaecbb496cbf8" > < div class = "ttname" > < a href = "routing__search_8cc.html#a204f9b990226e8288e1aaecbb496cbf8" > bound< / a > < / div > < div class = "ttdeci" > int64 bound< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "routing__search_8cc_source.html#l00972" > routing_search.cc:972< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_afb755b7934d8679476e2f05a89739bcd" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#afb755b7934d8679476e2f05a89739bcd" > operations_research::glop::kInvalidCol< / a > < / div > < div class = "ttdeci" > const ColIndex kInvalidCol(-1)< / div > < / div >
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< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_preprocessor_html_a4044f1ba691c532a1aa362b77258489d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_preprocessor.html#a4044f1ba691c532a1aa362b77258489d" > operations_research::glop::Preprocessor::parameters_< / a > < / div > < div class = "ttdeci" > const GlopParameters & parameters_< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00091" > preprocessor.h:91< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_undo_html_a9a2c9c31d675b34f6ec35cc1ca89e047" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047" > operations_research::glop::SingletonUndo::OperationType< / a > < / div > < div class = "ttdeci" > OperationType< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00342" > preprocessor.h:342< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_accurate_sum_html_acc8fad1f98b885fa7d0504f4dfc71f08" > < div class = "ttname" > < a href = "classoperations__research_1_1_accurate_sum.html#acc8fad1f98b885fa7d0504f4dfc71f08" > operations_research::AccurateSum::Add< / a > < / div > < div class = "ttdeci" > void Add(const FpNumber & value)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "accurate__sum_8h_source.html#l00029" > accurate_sum.h:29< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae91836db656214f9797e10c15928e501" > operations_research::glop::ConstraintStatus::FIXED_VALUE< / a > < / div > < div class = "ttdeci" > @ FIXED_VALUE< / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_matrix_scaler_html_a150a7b18071b89f90d47aa00b679edc9" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_matrix_scaler.html#a150a7b18071b89f90d47aa00b679edc9" > operations_research::glop::SparseMatrixScaler::ScaleColumnVector< / a > < / div > < div class = "ttdeci" > void ScaleColumnVector(bool up, DenseColumn *column_vector) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "matrix__scaler_8cc_source.html#l00175" > matrix_scaler.cc:175< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a4ba664b00317505a0026d2a38e6dd565" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a4ba664b00317505a0026d2a38e6dd565" > operations_research::glop::LinearProgram::variable_lower_bounds< / a > < / div > < div class = "ttdeci" > const DenseRow & variable_lower_bounds() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00229" > lp_data.h:229< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_add_slack_variables_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_add_slack_variables_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::AddSlackVariablesPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03675" > preprocessor.cc:3675< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_empty_column_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_empty_column_preprocessor.html" > operations_research::glop::EmptyColumnPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00232" > preprocessor.h:232< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sum_with_one_missing_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html" > operations_research::glop::SumWithOneMissing< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2lp__utils_8h_source.html#l00321" > lp_data/lp_utils.h:321< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_row_deletion_helper_html_a43e3b399f53b38b75171071c9d730c5b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a43e3b399f53b38b75171071c9d730c5b" > operations_research::glop::RowDeletionHelper::RestoreDeletedRows< / a > < / div > < div class = "ttdeci" > void RestoreDeletedRows(ProblemSolution *solution) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00257" > preprocessor.cc:257< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_add_slack_variables_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_add_slack_variables_preprocessor.html" > operations_research::glop::AddSlackVariablesPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l01025" > preprocessor.h:1025< / a > < / div > < / div >
< div class = "ttc" id = "aclassgtl_1_1_i_t_i_vector_html" > < div class = "ttname" > < a href = "classgtl_1_1_i_t_i_vector.html" > gtl::ITIVector< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "int__type__indexed__vector_8h_source.html#l00076" > int_type_indexed_vector.h:76< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a339d5516d8c29986233765e910257b4d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a339d5516d8c29986233765e910257b4d" > operations_research::glop::LinearProgram::GetFirstSlackVariable< / a > < / div > < div class = "ttdeci" > ColIndex GetFirstSlackVariable() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00720" > lp_data.cc:720< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_matrix_scaler_html_a57b3fbbeb1e0b5a127cc94694aad586e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_matrix_scaler.html#a57b3fbbeb1e0b5a127cc94694aad586e" > operations_research::glop::SparseMatrixScaler::ScaleRowVector< / a > < / div > < div class = "ttdeci" > void ScaleRowVector(bool up, DenseRow *row_vector) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "matrix__scaler_8cc_source.html#l00170" > matrix_scaler.cc:170< / a > < / div > < / div >
< div class = "ttc" id = "aclassgtl_1_1_i_t_i_vector_html_a9263000d449fdccb6cb70b303063e60b" > < div class = "ttname" > < a href = "classgtl_1_1_i_t_i_vector.html#a9263000d449fdccb6cb70b303063e60b" > gtl::ITIVector::push_back< / a > < / div > < div class = "ttdeci" > void push_back(const value_type & x)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "int__type__indexed__vector_8h_source.html#l00157" > int_type_indexed_vector.h:157< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a62b98dec38b6506442f9fc63f1a9b88f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a62b98dec38b6506442f9fc63f1a9b88f" > operations_research::glop::LinearProgram::SetConstraintBounds< / a > < / div > < div class = "ttdeci" > void SetConstraintBounds(RowIndex row, Fractional lower_bound, Fractional upper_bound)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00307" > lp_data.cc:307< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_proportional_column_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_proportional_column_preprocessor.html" > operations_research::glop::ProportionalColumnPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00256" > preprocessor.h:256< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "ademon__profiler_8cc_html_a21edc7ca4cc5802c8779d68556bc09cf" > < div class = "ttname" > < a href = "demon__profiler_8cc.html#a21edc7ca4cc5802c8779d68556bc09cf" > value< / a > < / div > < div class = "ttdeci" > int64 value< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "demon__profiler_8cc_source.html#l00043" > demon_profiler.cc:43< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status_html_ae01600784dc2a3768696f55aa374d093" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html#ae01600784dc2a3768696f55aa374d093" > operations_research::glop::DoubletonEqualityRowPreprocessor::RestoreInfo::ColChoiceAndStatus::status< / a > < / div > < div class = "ttdeci" > VariableStatus status< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00849" > preprocessor.h:849< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_proportional_row_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_proportional_row_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::ProportionalRowPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00784" > preprocessor.cc:784< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_scaling_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_scaling_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::ScalingPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03602" > preprocessor.cc:3602< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sum_with_one_missing_html_a8e16e2adc11d40ca12b2735ae21623b8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#a8e16e2adc11d40ca12b2735ae21623b8" > operations_research::glop::SumWithOneMissing::Add< / a > < / div > < div class = "ttdeci" > void Add(Fractional x)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2lp__utils_8h_source.html#l00325" > lp_data/lp_utils.h:325< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_row_deletion_helper_html_a4dda252e2b65e3aa074c002daf6f86b8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a4dda252e2b65e3aa074c002daf6f86b8" > operations_research::glop::RowDeletionHelper::GetMarkedRows< / a > < / div > < div class = "ttdeci" > const DenseBooleanColumn & GetMarkedRows() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00253" > preprocessor.cc:253< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "alp__data_2lp__utils_8h_html" > < div class = "ttname" > < a href = "lp__data_2lp__utils_8h.html" > lp_utils.h< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a88cc1c4519b043336ce23cdcec5fb0c2" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a88cc1c4519b043336ce23cdcec5fb0c2" > operations_research::glop::LinearProgram::GetMutableSparseColumn< / a > < / div > < div class = "ttdeci" > SparseColumn * GetMutableSparseColumn(ColIndex col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00411" > lp_data.cc:411< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_proportional_row_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_proportional_row_preprocessor.html" > operations_research::glop::ProportionalRowPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00297" > preprocessor.h:297< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_strict_i_t_i_vector_html_a967a5c081ad4195a30c78dc2c0bcabf5" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#a967a5c081ad4195a30c78dc2c0bcabf5" > operations_research::glop::StrictITIVector::size< / a > < / div > < div class = "ttdeci" > IntType size() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00276" > lp_types.h:276< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_html" > < div class = "ttname" > < a href = "namespaceoperations__research.html" > operations_research< / a > < / div > < div class = "ttdoc" > The vehicle routing library lets one model and solve generic vehicle routing problems ranging from th...< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "dense__doubly__linked__list_8h_source.html#l00021" > dense_doubly_linked_list.h:21< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ad59b85e44037bd502a5d8bd3fe16c0f9" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9" > operations_research::glop::ConstraintStatus< / a > < / div > < div class = "ttdeci" > ConstraintStatus< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00227" > lp_types.h:227< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1_accurate_sum_html_a176a3e919acd979b67cea1ede094cdaa" > < div class = "ttname" > < a href = "classoperations__research_1_1_accurate_sum.html#a176a3e919acd979b67cea1ede094cdaa" > operations_research::AccurateSum::Value< / a > < / div > < div class = "ttdeci" > FpNumber Value() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "accurate__sum_8h_source.html#l00037" > accurate_sum.h:37< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a2175025047722705a3af86e54229f9cd" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a2175025047722705a3af86e54229f9cd" > operations_research::glop::LinearProgram::GetTransposeSparseMatrix< / a > < / div > < div class = "ttdeci" > const SparseMatrix & GetTransposeSparseMatrix() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00374" > lp_data.cc:374< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_empty_constraint_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_empty_constraint_preprocessor.html" > operations_research::glop::EmptyConstraintPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00733" > preprocessor.h:733< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_html_a1181732aa2f4c08e28ea32b1c7c6f256" > < div class = "ttname" > < a href = "namespaceoperations__research.html#a1181732aa2f4c08e28ea32b1c7c6f256" > operations_research::IsIntegerWithinTolerance< / a > < / div > < div class = "ttdeci" > bool IsIntegerWithinTolerance(FloatType x, FloatType tolerance)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "fp__utils_8h_source.html#l00161" > fp_utils.h:161< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_doubleton_free_column_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_doubleton_free_column_preprocessor.html" > operations_research::glop::DoubletonFreeColumnPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00609" > preprocessor.h:609< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_column_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_column.html" > operations_research::glop::SparseColumn< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__column_8h_source.html#l00044" > sparse_column.h:44< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_add_slack_variables_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_add_slack_variables_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::AddSlackVariablesPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03666" > preprocessor.cc:3666< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_free_constraint_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_free_constraint_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::FreeConstraintPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02070" > preprocessor.cc:2070< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "aintegral__types_8h_html_a7cde0074dfd288f2d70c0e035dacb28a" > < div class = "ttname" > < a href = "integral__types_8h.html#a7cde0074dfd288f2d70c0e035dacb28a" > int64< / a > < / div > < div class = "ttdeci" > int64_t int64< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "integral__types_8h_source.html#l00034" > integral_types.h:34< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_ae3201a343d8df987411b55830bff7fa3" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#ae3201a343d8df987411b55830bff7fa3" > operations_research::glop::LinearProgram::SetMaximizationProblem< / a > < / div > < div class = "ttdeci" > void SetMaximizationProblem(bool maximize)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00341" > lp_data.cc:341< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_column_sign_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_column_sign_preprocessor.html" > operations_research::glop::SingletonColumnSignPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00780" > preprocessor.h:780< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_time_limit_html" > < div class = "ttname" > < a href = "classoperations__research_1_1_time_limit.html" > operations_research::TimeLimit< / a > < / div > < div class = "ttdoc" > A simple class to enforce both an elapsed time limit and a deterministic time limit in the same threa...< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "time__limit_8h_source.html#l00105" > time_limit.h:105< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_row_deletion_helper_html_a8e12342fc420701fbffd97025421575a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > operations_research::glop::RowDeletionHelper::IsEmpty< / a > < / div > < div class = "ttdeci" > bool IsEmpty() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00200" > preprocessor.h:200< / a > < / div > < / div >
< div class = "ttc" id = "areturn__macros_8h_html_a6009315499028d98072d8f31834cf4f9" > < div class = "ttname" > < a href = "return__macros_8h.html#a6009315499028d98072d8f31834cf4f9" > RETURN_IF_NULL< / a > < / div > < div class = "ttdeci" > #define RETURN_IF_NULL(x)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "return__macros_8h_source.html#l00020" > return_macros.h:20< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "apack_8cc_html_a750b5d744c39a06bfb13e6eb010e35d0" > < div class = "ttname" > < a href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > < / div > < div class = "ttdeci" > int index< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "pack_8cc_source.html#l00508" > pack.cc:508< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_preprocessor_html_a2c776397337c7b38bcdb8e2b57653a6a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_preprocessor.html#a2c776397337c7b38bcdb8e2b57653a6a" > operations_research::glop::Preprocessor::status< / a > < / div > < div class = "ttdeci" > ProblemStatus status() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00064" > preprocessor.h:64< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a007496c4e4962b2fa4d2e996fd7b4cf6" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a007496c4e4962b2fa4d2e996fd7b4cf6" > operations_research::glop::LinearProgram::GetMutableTransposeSparseMatrix< / a > < / div > < div class = "ttdeci" > SparseMatrix * GetMutableTransposeSparseMatrix()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00384" > lp_data.cc:384< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_forcing_and_implied_free_constraint_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::ForcingAndImpliedFreeConstraintPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01066" > preprocessor.cc:1066< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "amatrix__utils_8h_html" > < div class = "ttname" > < a href = "matrix__utils_8h.html" > matrix_utils.h< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_undo_html_a91238ea5ce3d56a927b2fa4b68b3e9aa" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a91238ea5ce3d56a927b2fa4b68b3e9aa" > operations_research::glop::SingletonUndo::SingletonUndo< / a > < / div > < div class = "ttdeci" > SingletonUndo(OperationType type, const LinearProgram & lp, MatrixEntry e, ConstraintStatus status)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02129" > preprocessor.cc:2129< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_undo_html_a9a2c9c31d675b34f6ec35cc1ca89e047a629106ec8d53390d18c3f330156486ec" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a629106ec8d53390d18c3f330156486ec" > operations_research::glop::SingletonUndo::MAKE_CONSTRAINT_AN_EQUALITY< / a > < / div > < div class = "ttdeci" > @ MAKE_CONSTRAINT_AN_EQUALITY< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00346" > preprocessor.h:346< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "arevised__simplex_8h_html" > < div class = "ttname" > < a href = "revised__simplex_8h.html" > revised_simplex.h< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ab7a106449441d3fd61aa70916a147a7d" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ab7a106449441d3fd61aa70916a147a7d" > operations_research::glop::VariableToConstraintStatus< / a > < / div > < div class = "ttdeci" > ConstraintStatus VariableToConstraintStatus(VariableStatus status)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8cc_source.html#l00109" > lp_types.cc:109< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a733947145e3e1631165b618b05c9ccb7" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a733947145e3e1631165b618b05c9ccb7" > operations_research::glop::Fractional< / a > < / div > < div class = "ttdeci" > double Fractional< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00077" > lp_types.h:77< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a14dc61f52267ea9b476f64c1d4d975b1" > operations_research::glop::ConstraintStatus::AT_UPPER_BOUND< / a > < / div > < div class = "ttdeci" > @ AT_UPPER_BOUND< / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_column_sign_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_column_sign_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::SingletonColumnSignPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02885" > preprocessor.cc:2885< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290cae91836db656214f9797e10c15928e501" > operations_research::glop::VariableStatus::FIXED_VALUE< / a > < / div > < div class = "ttdeci" > @ FIXED_VALUE< / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_proportional_column_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_proportional_column_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::ProportionalColumnPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00440" > preprocessor.cc:440< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a4e79763dc85eb10320835bca13697f4d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a4e79763dc85eb10320835bca13697f4d" > operations_research::glop::LinearProgram::constraint_lower_bounds< / a > < / div > < div class = "ttdeci" > const DenseColumn & constraint_lower_bounds() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00215" > lp_data.h:215< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::SingletonPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02680" > preprocessor.cc:2680< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html" > operations_research::glop::UnconstrainedVariablePreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00660" > preprocessor.h:660< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_af9a790b7e8c5b0c6d55b336177378e78" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#af9a790b7e8c5b0c6d55b336177378e78" > operations_research::glop::kInfinity< / a > < / div > < div class = "ttdeci" > const double kInfinity< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00083" > lp_types.h:83< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a8fbc9efd86a3cc862a9079d86ab8b524" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a8fbc9efd86a3cc862a9079d86ab8b524" > operations_research::glop::RowToColIndex< / a > < / div > < div class = "ttdeci" > ColIndex RowToColIndex(RowIndex row)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00048" > lp_types.h:48< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_scaling_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_scaling_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::ScalingPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03579" > preprocessor.cc:3579< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_ac220cc5563c65b821d9d043010bb2121" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#ac220cc5563c65b821d9d043010bb2121" > operations_research::glop::LinearProgram::DeleteRows< / a > < / div > < div class = "ttdeci" > void DeleteRows(const DenseBooleanColumn & rows_to_delete)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l01190" > lp_data.cc:1190< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "arouting__flow_8cc_html_a26a8cbbc7bcf4117c2bf65104b4a54b4" > < div class = "ttname" > < a href = "routing__flow_8cc.html#a26a8cbbc7bcf4117c2bf65104b4a54b4" > cost< / a > < / div > < div class = "ttdeci" > int64 cost< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "routing__flow_8cc_source.html#l00130" > routing_flow.cc:130< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a3d9874910f9632900fe8677463b1c0be" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a3d9874910f9632900fe8677463b1c0be" > operations_research::glop::ScalarProduct< / a > < / div > < div class = "ttdeci" > Fractional ScalarProduct(const DenseRowOrColumn1 & u, const DenseRowOrColumn2 & v)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2lp__utils_8h_source.html#l00047" > lp_data/lp_utils.h:47< / a > < / div > < / div >
< div class = "ttc" id = "aconstraint__solver_2table_8cc_html_af730895c6c6ef6e03caaf6251192dfd2" > < div class = "ttname" > < a href = "constraint__solver_2table_8cc.html#af730895c6c6ef6e03caaf6251192dfd2" > a< / a > < / div > < div class = "ttdeci" > int64 a< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "constraint__solver_2table_8cc_source.html#l00042" > constraint_solver/table.cc:42< / a > < / div > < / div >
< div class = "ttc" id = "alp__data__utils_8h_html" > < div class = "ttname" > < a href = "lp__data__utils_8h.html" > lp_data_utils.h< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_preprocessor_html_a6ef36d55945fd761fbefac971b818a29" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_preprocessor.html#a6ef36d55945fd761fbefac971b818a29" > operations_research::glop::Preprocessor::status_< / a > < / div > < div class = "ttdeci" > ProblemStatus status_< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00090" > preprocessor.h:90< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_strict_i_t_i_vector_html_af8d7048738ceb4c753b040e6d29db79c" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html#af8d7048738ceb4c753b040e6d29db79c" > operations_research::glop::StrictITIVector::assign< / a > < / div > < div class = "ttdeci" > void assign(IntType size, const T & v)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00274" > lp_types.h:274< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_matrix_html_a41741829541d089f1c4d34f190884813" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a41741829541d089f1c4d34f190884813" > operations_research::glop::SparseMatrix::num_cols< / a > < / div > < div class = "ttdeci" > ColIndex num_cols() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00177" > sparse.h:177< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_proportional_column_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_proportional_column_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::ProportionalColumnPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00669" > preprocessor.cc:669< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_vector_html_a39a185056b395c7ed7e8d5c41df3bc6b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a39a185056b395c7ed7e8d5c41df3bc6b" > operations_research::glop::SparseVector::LookUpCoefficient< / a > < / div > < div class = "ttdeci" > Fractional LookUpCoefficient(Index index) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__vector_8h_source.html#l00979" > sparse_vector.h:979< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "arevised__simplex_8cc_html_ae985c429ef4bec190816ed836d6cf2c2" > < div class = "ttname" > < a href = "revised__simplex_8cc.html#ae985c429ef4bec190816ed836d6cf2c2" > target_bound< / a > < / div > < div class = "ttdeci" > Fractional target_bound< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "revised__simplex_8cc_source.html#l01795" > revised_simplex.cc:1795< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_vector_html_af3346e19f245a59be830e9558002d2d4" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af3346e19f245a59be830e9558002d2d4" > operations_research::glop::SparseVector::PopulateFromSparseVector< / a > < / div > < div class = "ttdeci" > void PopulateFromSparseVector(const SparseVector & sparse_vector)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__vector_8h_source.html#l00592" > sparse_vector.h:592< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_empty_column_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_empty_column_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::EmptyColumnPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00386" > preprocessor.cc:386< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_aeeee0971281f2781c379fce7a64a5049" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#aeeee0971281f2781c379fce7a64a5049" > operations_research::glop::LinearProgram::GetSparseColumn< / a > < / div > < div class = "ttdeci" > const SparseColumn & GetSparseColumn(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00407" > lp_data.cc:407< / a > < / div > < / div >
< div class = "ttc" id = "acp__model__solver_8cc_html_ac3cf9db02b23ea1455b5ae6955d03e47" > < div class = "ttname" > < a href = "cp__model__solver_8cc.html#ac3cf9db02b23ea1455b5ae6955d03e47" > time_limit< / a > < / div > < div class = "ttdeci" > SharedTimeLimit * time_limit< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__solver_8cc_source.html#l02063" > cp_model_solver.cc:2063< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_doubleton_free_column_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_doubleton_free_column_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::DoubletonFreeColumnPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01528" > preprocessor.cc:1528< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a95879916d90daeba91c40399ae5ddcc6" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a95879916d90daeba91c40399ae5ddcc6" > operations_research::glop::IsFinite< / a > < / div > < div class = "ttdeci" > bool IsFinite(Fractional value)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00090" > lp_types.h:90< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a0fe7ba825c8c6cd1efdcff6dec631093" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a0fe7ba825c8c6cd1efdcff6dec631093" > operations_research::glop::LinearProgram::SetVariableBounds< / a > < / div > < div class = "ttdeci" > void SetVariableBounds(ColIndex col, Fractional lower_bound, Fractional upper_bound)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00247" > lp_data.cc:247< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_matrix_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_matrix.html" > operations_research::glop::SparseMatrix< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00061" > sparse.h:61< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_deletion_helper_html_a6afccf8c0c7105ba45b8d7bd47830239" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a6afccf8c0c7105ba45b8d7bd47830239" > operations_research::glop::ColumnDeletionHelper::GetMarkedColumns< / a > < / div > < div class = "ttdeci" > const DenseBooleanRow & GetMarkedColumns() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00165" > preprocessor.h:165< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_matrix_html_a1e9f788d4507f2461b4f775755aaf82e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a1e9f788d4507f2461b4f775755aaf82e" > operations_research::glop::SparseMatrix::mutable_column< / a > < / div > < div class = "ttdeci" > SparseColumn * mutable_column(ColIndex col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00181" > sparse.h:181< / a > < / div > < / div >
< div class = "ttc" id = "areturn__macros_8h_html_af7e921cd45afaad5e7a45af3b5bc42d1" > < div class = "ttname" > < a href = "return__macros_8h.html#af7e921cd45afaad5e7a45af3b5bc42d1" > RETURN_VALUE_IF_NULL< / a > < / div > < div class = "ttdeci" > #define RETURN_VALUE_IF_NULL(x, v)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "return__macros_8h_source.html#l00026" > return_macros.h:26< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_empty_column_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_empty_column_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::EmptyColumnPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00342" > preprocessor.cc:342< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_preprocessor_html_a322abc0882049744dd1169a3d9e176e5" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_preprocessor.html#a322abc0882049744dd1169a3d9e176e5" > operations_research::glop::Preprocessor::IsSmallerWithinPreprocessorZeroTolerance< / a > < / div > < div class = "ttdeci" > bool IsSmallerWithinPreprocessorZeroTolerance(Fractional a, Fractional b) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00083" > preprocessor.h:83< / a > < / div > < / div >
< div class = "ttc" id = "aclassgtl_1_1_i_t_i_vector_html_ab93f952cf4db5c7f9a59163f933e5bbe" > < div class = "ttname" > < a href = "classgtl_1_1_i_t_i_vector.html#ab93f952cf4db5c7f9a59163f933e5bbe" > gtl::ITIVector::swap< / a > < / div > < div class = "ttdeci" > void swap(ITIVector & x)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "int__type__indexed__vector_8h_source.html#l00168" > int_type_indexed_vector.h:168< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_problem_solution_html_ae7a0a13dedf8ae7920036bfff1ad9c3b" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_problem_solution.html#ae7a0a13dedf8ae7920036bfff1ad9c3b" > operations_research::glop::ProblemSolution::constraint_statuses< / a > < / div > < div class = "ttdeci" > ConstraintStatusColumn constraint_statuses< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00676" > lp_data.h:676< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_row_deletion_helper_html_a2087c8376c03c247099a989f2990e6e8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2087c8376c03c247099a989f2990e6e8" > operations_research::glop::RowDeletionHelper::MarkRowForDeletion< / a > < / div > < div class = "ttdeci" > void MarkRowForDeletion(RowIndex row)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00240" > preprocessor.cc:240< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_empty_constraint_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_empty_constraint_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::EmptyConstraintPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02081" > preprocessor.cc:2081< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_implied_free_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_implied_free_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::ImpliedFreePreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01317" > preprocessor.cc:1317< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_problem_solution_html" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_problem_solution.html" > operations_research::glop::ProblemSolution< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00647" > lp_data.h:647< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_matrix_html_a960110e64357a3e69162ebf1f71959dd" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a960110e64357a3e69162ebf1f71959dd" > operations_research::glop::SparseMatrix::num_rows< / a > < / div > < div class = "ttdeci" > RowIndex num_rows() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00176" > sparse.h:176< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_strict_i_t_i_vector_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_strict_i_t_i_vector.html" > operations_research::glop::StrictITIVector< ColIndex, Fractional > < / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "apreprocessor_8cc_html_abcdbe46fb8451a69d42c17abdb920021" > < div class = "ttname" > < a href = "preprocessor_8cc.html#abcdbe46fb8451a69d42c17abdb920021" > representative< / a > < / div > < div class = "ttdeci" > ColIndex representative< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00424" > preprocessor.cc:424< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sum_with_one_missing_html_af7c8b5d68bfc286dbb52a547917de1af" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af7c8b5d68bfc286dbb52a547917de1af" > operations_research::glop::SumWithOneMissing::Sum< / a > < / div > < div class = "ttdeci" > Fractional Sum() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2lp__utils_8h_source.html#l00335" > lp_data/lp_utils.h:335< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_af69d9b7065a8f31604a8134be4307749" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#af69d9b7065a8f31604a8134be4307749" > operations_research::glop::LinearProgram::num_entries< / a > < / div > < div class = "ttdeci" > EntryIndex num_entries() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00211" > lp_data.h:211< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ad59b85e44037bd502a5d8bd3fe16c0f9ae4ac03f6c9f00665644e868dd1fb9f1e" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9ae4ac03f6c9f00665644e868dd1fb9f1e" > operations_research::glop::ConstraintStatus::BASIC< / a > < / div > < div class = "ttdeci" > @ BASIC< / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_column_sign_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_column_sign_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::SingletonColumnSignPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02913" > preprocessor.cc:2913< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dualizer_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::DualizerPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03230" > preprocessor.cc:3230< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_to_minimization_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_to_minimization_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::ToMinimizationPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03642" > preprocessor.cc:3642< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_deletion_helper_html_a46b7ed2e9e3a3d5dc9a024801e1baaf7" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a46b7ed2e9e3a3d5dc9a024801e1baaf7" > operations_research::glop::ColumnDeletionHelper::MarkColumnForDeletion< / a > < / div > < div class = "ttdeci" > void MarkColumnForDeletion(ColIndex col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00190" > preprocessor.cc:190< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a01a5a464aad9b500e5f07b0457520762" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a01a5a464aad9b500e5f07b0457520762" > operations_research::glop::LinearProgram::SetObjectiveScalingFactor< / a > < / div > < div class = "ttdeci" > void SetObjectiveScalingFactor(Fractional objective_scaling_factor)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00334" > lp_data.cc:334< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a9ac8fe8120fdded43c5fa888bd696d3e" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a9ac8fe8120fdded43c5fa888bd696d3e" > operations_research::glop::LinearProgram::UseTransposeMatrixAsReference< / a > < / div > < div class = "ttdeci" > void UseTransposeMatrixAsReference()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00395" > lp_data.cc:395< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_problem_solution_html_ac6b277da46124f6b08841906b0febbed" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_problem_solution.html#ac6b277da46124f6b08841906b0febbed" > operations_research::glop::ProblemSolution::dual_values< / a > < / div > < div class = "ttdeci" > DenseColumn dual_values< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00660" > lp_data.h:660< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_deletion_helper_html_abf42c94e770b44d463ca3d13cda889c6" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#abf42c94e770b44d463ca3d13cda889c6" > operations_research::glop::ColumnDeletionHelper::GetStoredValue< / a > < / div > < div class = "ttdeci" > const DenseRow & GetStoredValue() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00176" > preprocessor.h:176< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dualizer_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html" > operations_research::glop::DualizerPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00889" > preprocessor.h:889< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a509c4e359e6f7041eddfac3f1c46a92f" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a509c4e359e6f7041eddfac3f1c46a92f" > operations_research::glop::GetProblemStatusString< / a > < / div > < div class = "ttdeci" > std::string GetProblemStatusString(ProblemStatus problem_status)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8cc_source.html#l00019" > lp_types.cc:19< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_adf55bb4fcaab95674f072cb528d426a0" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#adf55bb4fcaab95674f072cb528d426a0" > operations_research::glop::LinearProgram::objective_scaling_factor< / a > < / div > < div class = "ttdeci" > Fractional objective_scaling_factor() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00261" > lp_data.h:261< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a6137c2df856cf2634f9bb259d2aace2b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a6137c2df856cf2634f9bb259d2aace2b" > operations_research::glop::LinearProgram::GetObjectiveCoefficientForMinimizationVersion< / a > < / div > < div class = "ttdeci" > Fractional GetObjectiveCoefficientForMinimizationVersion(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00417" > lp_data.cc:417< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a81334c7ceae9d68a38fe4d4bf0b7794c" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a81334c7ceae9d68a38fe4d4bf0b7794c" > operations_research::glop::LinearProgram::objective_offset< / a > < / div > < div class = "ttdeci" > Fractional objective_offset() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00260" > lp_data.h:260< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status_html_a7807b13123f03224c0435ad7d2bcdb11" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html#a7807b13123f03224c0435ad7d2bcdb11" > operations_research::glop::DoubletonEqualityRowPreprocessor::RestoreInfo::ColChoiceAndStatus::value< / a > < / div > < div class = "ttdeci" > Fractional value< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00850" > preprocessor.h:850< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_remove_near_zero_entries_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_remove_near_zero_entries_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::RemoveNearZeroEntriesPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02811" > preprocessor.cc:2811< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_matrix_html_adc6b282d2cc7afc75b60ee44a6bfb2ac" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#adc6b282d2cc7afc75b60ee44a6bfb2ac" > operations_research::glop::SparseMatrix::column< / a > < / div > < div class = "ttdeci" > const SparseColumn & column(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8h_source.html#l00180" > sparse.h:180< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_ab4f3103f39bdbb86151baed2347f7b0a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#ab4f3103f39bdbb86151baed2347f7b0a" > operations_research::glop::LinearProgram::IsVariableInteger< / a > < / div > < div class = "ttdeci" > bool IsVariableInteger(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00293" > lp_data.cc:293< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dualizer_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::DualizerPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03346" > preprocessor.cc:3346< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_matrix_html_a2fe6f7470512f5301031480737375c88" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a2fe6f7470512f5301031480737375c88" > operations_research::glop::SparseMatrix::PopulateFromTranspose< / a > < / div > < div class = "ttdeci" > void PopulateFromTranspose(const Matrix & input)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8cc_source.html#l00181" > sparse.cc:181< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::UnconstrainedVariablePreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01987" > preprocessor.cc:1987< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_shift_variable_bounds_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_shift_variable_bounds_preprocessor.html" > operations_research::glop::ShiftVariableBoundsPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00947" > preprocessor.h:947< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor_html_a16b556cc08c1f6802a387420e5d038f2" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html#a16b556cc08c1f6802a387420e5d038f2" > operations_research::glop::UnconstrainedVariablePreprocessor::RemoveZeroCostUnconstrainedVariable< / a > < / div > < div class = "ttdeci" > void RemoveZeroCostUnconstrainedVariable(ColIndex col, Fractional target_bound, LinearProgram *lp)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01712" > preprocessor.cc:1712< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ac9bef291f9b941569978d0f075144abf" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ac9bef291f9b941569978d0f075144abf" > operations_research::glop::FindProportionalColumns< / a > < / div > < div class = "ttdeci" > ColMapping FindProportionalColumns(const SparseMatrix & matrix, Fractional tolerance)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "matrix__utils_8cc_source.html#l00115" > matrix_utils.cc:115< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a354fba4c3eaf6cf38ee4f9e78a59f4c1" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a354fba4c3eaf6cf38ee4f9e78a59f4c1" > operations_research::glop::LinearProgram::ScaleBounds< / a > < / div > < div class = "ttdeci" > Fractional ScaleBounds()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l01155" > lp_data.cc:1155< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_preprocessor_html_a3611ef0bc3b3adfa06432f2659c535f7" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_preprocessor.html#a3611ef0bc3b3adfa06432f2659c535f7" > operations_research::glop::Preprocessor::Preprocessor< / a > < / div > < div class = "ttdeci" > Preprocessor(const GlopParameters *parameters)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00045" > preprocessor.cc:45< / a > < / div > < / div >
< div class = "ttc" id = "aclassgtl_1_1_i_t_i_vector_html_a60304b65bf89363bcc3165d3cde67f86" > < div class = "ttname" > < a href = "classgtl_1_1_i_t_i_vector.html#a60304b65bf89363bcc3165d3cde67f86" > gtl::ITIVector::size< / a > < / div > < div class = "ttdeci" > size_type size() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "int__type__indexed__vector_8h_source.html#l00146" > int_type_indexed_vector.h:146< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_to_minimization_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_to_minimization_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::ToMinimizationPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03659" > preprocessor.cc:3659< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_vector_html_ab38326ea6cb6187267665dd8b2748f3d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ab38326ea6cb6187267665dd8b2748f3d" > operations_research::glop::SparseVector< RowIndex, SparseColumnIterator > ::Entry< / a > < / div > < div class = "ttdeci" > typename Iterator::Entry Entry< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__vector_8h_source.html#l00091" > sparse_vector.h:91< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_fixed_variable_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_fixed_variable_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::FixedVariablePreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01033" > preprocessor.cc:1033< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a2a29cc40908e09b0c565ceea15b77d89" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a2a29cc40908e09b0c565ceea15b77d89" > operations_research::glop::LinearProgram::SetObjectiveOffset< / a > < / div > < div class = "ttdeci" > void SetObjectiveOffset(Fractional objective_offset)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00329" > lp_data.cc:329< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_deletion_helper_html_a1fbdcd623d96ea5e73d664ce0c6bd002" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a1fbdcd623d96ea5e73d664ce0c6bd002" > operations_research::glop::ColumnDeletionHelper::IsColumnMarked< / a > < / div > < div class = "ttdeci" > bool IsColumnMarked(ColIndex col) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00160" > preprocessor.h:160< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_vector_html_ae7c152aafe19515204c65dadcdc876d6" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_vector.html#ae7c152aafe19515204c65dadcdc876d6" > operations_research::glop::SparseVector::GetFirstCoefficient< / a > < / div > < div class = "ttdeci" > Fractional GetFirstCoefficient() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__vector_8h_source.html#l00283" > sparse_vector.h:283< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_fixed_variable_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_fixed_variable_preprocessor.html" > operations_research::glop::FixedVariablePreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00482" > preprocessor.h:482< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_preprocessor_html_aeb01b3abaf68cfdcad5c90c9068c1570" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_preprocessor.html#aeb01b3abaf68cfdcad5c90c9068c1570" > operations_research::glop::Preprocessor::IsSmallerWithinFeasibilityTolerance< / a > < / div > < div class = "ttdeci" > bool IsSmallerWithinFeasibilityTolerance(Fractional a, Fractional b) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00079" > preprocessor.h:79< / a > < / div > < / div >
< div class = "ttc" id = "aclassgtl_1_1_i_t_i_vector_html_ac8bb3912a3ce86b15842e79d0b421204" > < div class = "ttname" > < a href = "classgtl_1_1_i_t_i_vector.html#ac8bb3912a3ce86b15842e79d0b421204" > gtl::ITIVector::clear< / a > < / div > < div class = "ttdeci" > void clear()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "int__type__indexed__vector_8h_source.html#l00169" > int_type_indexed_vector.h:169< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9af00c8dbdd6e1f11bdae06be94277d293" > operations_research::glop::ProblemStatus::OPTIMAL< / a > < / div > < div class = "ttdeci" > @ OPTIMAL< / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "arouting__search_8cc_html_ab66ad179c8a6fcf1adb958cb51f4c7cb" > < div class = "ttname" > < a href = "routing__search_8cc.html#ab66ad179c8a6fcf1adb958cb51f4c7cb" > coefficient< / a > < / div > < div class = "ttdeci" > int64 coefficient< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "routing__search_8cc_source.html#l00973" > routing_search.cc:973< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_vector_html_a8e12342fc420701fbffd97025421575a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a8e12342fc420701fbffd97025421575a" > operations_research::glop::SparseVector::IsEmpty< / a > < / div > < div class = "ttdeci" > bool IsEmpty() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__vector_8h_source.html#l00529" > sparse_vector.h:529< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_ac59fd9cddfe284bf9dc7581ed631ce8d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#ac59fd9cddfe284bf9dc7581ed631ce8d" > operations_research::glop::LinearProgram::DeleteColumns< / a > < / div > < div class = "ttdeci" > void DeleteColumns(const DenseBooleanRow & columns_to_delete)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l01034" > lp_data.cc:1034< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_vector_html_af69d9b7065a8f31604a8134be4307749" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_vector.html#af69d9b7065a8f31604a8134be4307749" > operations_research::glop::SparseVector::num_entries< / a > < / div > < div class = "ttdeci" > EntryIndex num_entries() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__vector_8h_source.html#l00270" > sparse_vector.h:270< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_deletion_helper_html_aa71d36872f416feaa853788a7a7a7ef8" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#aa71d36872f416feaa853788a7a7a7ef8" > operations_research::glop::ColumnDeletionHelper::Clear< / a > < / div > < div class = "ttdeci" > void Clear()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00185" > preprocessor.cc:185< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a7054c01679c4d1b7ce846b95937582d6" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a7054c01679c4d1b7ce846b95937582d6" > operations_research::glop::LinearProgram::Swap< / a > < / div > < div class = "ttdeci" > void Swap(LinearProgram *linear_program)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l01000" > lp_data.cc:1000< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_undo_html_a9a2c9c31d675b34f6ec35cc1ca89e047a003bca6275374734c52d66fb1a9ea10c" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a003bca6275374734c52d66fb1a9ea10c" > operations_research::glop::SingletonUndo::SINGLETON_ROW< / a > < / div > < div class = "ttdeci" > @ SINGLETON_ROW< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00344" > preprocessor.h:344< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_scaling_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_scaling_preprocessor.html" > operations_research::glop::ScalingPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00977" > preprocessor.h:977< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9" > operations_research::glop::ProblemStatus< / a > < / div > < div class = "ttdeci" > ProblemStatus< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00101" > lp_types.h:101< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_accdd045ec09206640c2338524da77d23" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#accdd045ec09206640c2338524da77d23" > operations_research::glop::LinearProgram::IsMaximizationProblem< / a > < / div > < div class = "ttdeci" > bool IsMaximizationProblem() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00171" > lp_data.h:171< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_main_lp_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_main_lp_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::MainLpPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00061" > preprocessor.cc:61< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "amarkowitz_8cc_html_aea35f36ba98d5bbd8d033382f50c9e52" > < div class = "ttname" > < a href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > < / div > < div class = "ttdeci" > RowIndex row< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "markowitz_8cc_source.html#l00175" > markowitz.cc:175< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::DoubletonEqualityRowPreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02933" > preprocessor.cc:2933< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html" > operations_research::glop::LinearProgram< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00055" > lp_data.h:55< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor.html" > operations_research::glop::DoubletonEqualityRowPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00802" > preprocessor.h:802< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_free_constraint_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_free_constraint_preprocessor.html" > operations_research::glop::FreeConstraintPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00714" > preprocessor.h:714< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_ab5af7f232cddcd91f70be84c0d398ba9" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#ab5af7f232cddcd91f70be84c0d398ba9" > operations_research::glop::LinearProgram::SetObjectiveCoefficient< / a > < / div > < div class = "ttdeci" > void SetObjectiveCoefficient(ColIndex col, Fractional value)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8cc_source.html#l00324" > lp_data.cc:324< / a > < / div > < / div >
< div class = "ttc" id = "asat_2lp__utils_8cc_html_a561d7bf12fc7674b3fe0ad2ba2e175a0" > < div class = "ttname" > < a href = "sat_2lp__utils_8cc.html#a561d7bf12fc7674b3fe0ad2ba2e175a0" > lower_bounds< / a > < / div > < div class = "ttdeci" > std::vector< double > lower_bounds< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat_2lp__utils_8cc_source.html#l00443" > sat/lp_utils.cc:443< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a5c8255f82269d42db81cc944eff0180f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a5c8255f82269d42db81cc944eff0180f" > operations_research::glop::LinearProgram::objective_coefficients< / a > < / div > < div class = "ttdeci" > const DenseRow & objective_coefficients() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00223" > lp_data.h:223< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ad59b85e44037bd502a5d8bd3fe16c0f9a74c506bd3d744fb5c2862229c8f2b6ce" > operations_research::glop::ConstraintStatus::AT_LOWER_BOUND< / a > < / div > < div class = "ttdeci" > @ AT_LOWER_BOUND< / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status_html" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html" > operations_research::glop::DoubletonEqualityRowPreprocessor::RestoreInfo::ColChoiceAndStatus< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00847" > preprocessor.h:847< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_acd8437353d8dc686a75c98b5897dd871" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#acd8437353d8dc686a75c98b5897dd871" > operations_research::glop::LinearProgram::num_variables< / a > < / div > < div class = "ttdeci" > ColIndex num_variables() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00205" > lp_data.h:205< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_preprocessor_html_a5c1cfa0469b831e367e8f9b6b463b5ae" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_preprocessor.html#a5c1cfa0469b831e367e8f9b6b463b5ae" > operations_research::glop::Preprocessor::~Preprocessor< / a > < / div > < div class = "ttdeci" > virtual ~Preprocessor()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00051" > preprocessor.cc:51< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_undo_html_ab55c02f6db7b2044d8a1093ebd3dbf2f" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_undo.html#ab55c02f6db7b2044d8a1093ebd3dbf2f" > operations_research::glop::SingletonUndo::Undo< / a > < / div > < div class = "ttdeci" > void Undo(const GlopParameters & parameters, const SparseMatrix & deleted_columns, const SparseMatrix & deleted_rows, ProblemSolution *solution) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02141" > preprocessor.cc:2141< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ae8a885303349cb7807c7c87b405bc0c9afaee4ca3c30ee18148ce3ada37466498" > operations_research::glop::ProblemStatus::INIT< / a > < / div > < div class = "ttdeci" > @ INIT< / div > < / div >
< div class = "ttc" id = "aresource_8cc_html_a73461c37822b6ebb75b54ba1a9ffb442" > < div class = "ttname" > < a href = "resource_8cc.html#a73461c37822b6ebb75b54ba1a9ffb442" > delta< / a > < / div > < div class = "ttdeci" > int64 delta< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "resource_8cc_source.html#l01684" > resource.cc:1684< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_proportional_row_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_proportional_row_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::ProportionalRowPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00959" > preprocessor.cc:959< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_deletion_helper_html_a8e12342fc420701fbffd97025421575a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#a8e12342fc420701fbffd97025421575a" > operations_research::glop::ColumnDeletionHelper::IsEmpty< / a > < / div > < div class = "ttdeci" > bool IsEmpty() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00168" > preprocessor.h:168< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "aconstraint__solver_2table_8cc_html_a344010e26426d6a13411648d988bc9b6" > < div class = "ttname" > < a href = "constraint__solver_2table_8cc.html#a344010e26426d6a13411648d988bc9b6" > b< / a > < / div > < div class = "ttdeci" > int64 b< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "constraint__solver_2table_8cc_source.html#l00043" > constraint_solver/table.cc:43< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor_html_a5d398cb6297813f547da141848e70bbc" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_unconstrained_variable_preprocessor.html#a5d398cb6297813f547da141848e70bbc" > operations_research::glop::UnconstrainedVariablePreprocessor::Run< / a > < / div > < div class = "ttdeci" > bool Run(LinearProgram *lp) final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01759" > preprocessor.cc:1759< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sum_with_one_missing_html_af6e4d9c2405447b44b4cf701e43e2200" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sum_with_one_missing.html#af6e4d9c2405447b44b4cf701e43e2200" > operations_research::glop::SumWithOneMissing::SumWithout< / a > < / div > < div class = "ttdeci" > Fractional SumWithout(Fractional x) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2lp__utils_8h_source.html#l00340" > lp_data/lp_utils.h:340< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_problem_solution_html_a887a20330f1f58adbe564ef0fcf74e8c" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_problem_solution.html#a887a20330f1f58adbe564ef0fcf74e8c" > operations_research::glop::ProblemSolution::variable_statuses< / a > < / div > < div class = "ttdeci" > VariableStatusRow variable_statuses< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00675" > lp_data.h:675< / a > < / div > < / div >
< div class = "ttc" id = "aclassgtl_1_1_i_t_i_vector_html_a4e3670a285a3642eaa07f66766cffa72" > < div class = "ttname" > < a href = "classgtl_1_1_i_t_i_vector.html#a4e3670a285a3642eaa07f66766cffa72" > gtl::ITIVector::resize< / a > < / div > < div class = "ttdeci" > void resize(size_type new_size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "int__type__indexed__vector_8h_source.html#l00149" > int_type_indexed_vector.h:149< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_matrix_html_a8e12342fc420701fbffd97025421575a" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_matrix.html#a8e12342fc420701fbffd97025421575a" > operations_research::glop::SparseMatrix::IsEmpty< / a > < / div > < div class = "ttdeci" > bool IsEmpty() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse_8cc_source.html#l00115" > sparse.cc:115< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_preprocessor_html_a3ad0a2aeb2c7f12fb9d3439a480ffbde" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_preprocessor.html#a3ad0a2aeb2c7f12fb9d3439a480ffbde" > operations_research::glop::Preprocessor::in_mip_context_< / a > < / div > < div class = "ttdeci" > bool in_mip_context_< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00092" > preprocessor.h:92< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_a33b78d7012477c55f395aaf92ca6e9f4" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#a33b78d7012477c55f395aaf92ca6e9f4" > operations_research::glop::LinearProgram::GetSparseMatrix< / a > < / div > < div class = "ttdeci" > const SparseMatrix & GetSparseMatrix() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00175" > lp_data.h:175< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a58ffd8db96c399242dc718221bdc81ee" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a58ffd8db96c399242dc718221bdc81ee" > operations_research::glop::FixConstraintWithFixedStatuses< / a > < / div > < div class = "ttdeci" > void FixConstraintWithFixedStatuses(const DenseColumn & row_lower_bounds, const DenseColumn & row_upper_bounds, ProblemSolution *solution)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03193" > preprocessor.cc:3193< / a > < / div > < / div >
< div class = "ttc" id = "astats_8h_html_a778dda76cff1d491efd5888b0bf9b56e" > < div class = "ttname" > < a href = "stats_8h.html#a778dda76cff1d491efd5888b0bf9b56e" > SCOPED_INSTRUCTION_COUNT< / a > < / div > < div class = "ttdeci" > #define SCOPED_INSTRUCTION_COUNT(time_limit)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "stats_8h_source.html#l00437" > stats.h:437< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_undo_html_a9a2c9c31d675b34f6ec35cc1ca89e047a723392e031e932ce6773d9ba469ccfa9" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a723392e031e932ce6773d9ba469ccfa9" > operations_research::glop::SingletonUndo::SINGLETON_COLUMN_IN_EQUALITY< / a > < / div > < div class = "ttdeci" > @ SINGLETON_COLUMN_IN_EQUALITY< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00345" > preprocessor.h:345< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290c" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290c" > operations_research::glop::VariableStatus< / a > < / div > < div class = "ttdeci" > VariableStatus< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00196" > lp_types.h:196< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_main_lp_preprocessor_html_a465d7f4ac3a848d3ef84108d427b8de4" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_main_lp_preprocessor.html#a465d7f4ac3a848d3ef84108d427b8de4" > operations_research::glop::MainLpPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00173" > preprocessor.cc:173< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_preprocessor_html_a67ee68ae6c97419ab4ebb6af8264e7d2" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_preprocessor.html#a67ee68ae6c97419ab4ebb6af8264e7d2" > operations_research::glop::Preprocessor::time_limit_< / a > < / div > < div class = "ttdeci" > TimeLimit * time_limit_< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00094" > preprocessor.h:94< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca88c189a42c87aa49d667fc8ab76bc323" > operations_research::glop::VariableStatus::FREE< / a > < / div > < div class = "ttdeci" > @ FREE< / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a46fb729c0be27d1b97db15e0ce9c6067" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a46fb729c0be27d1b97db15e0ce9c6067" > operations_research::glop::PreciseScalarProduct< / a > < / div > < div class = "ttdeci" > Fractional PreciseScalarProduct(const DenseRowOrColumn & u, const DenseRowOrColumn2 & v)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_2lp__utils_8h_source.html#l00092" > lp_data/lp_utils.h:92< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status_html_ad9a7a69580012bd79b5e46d39bddee80" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_1_1_restore_info_1_1_col_choice_and_status.html#ad9a7a69580012bd79b5e46d39bddee80" > operations_research::glop::DoubletonEqualityRowPreprocessor::RestoreInfo::ColChoiceAndStatus::col_choice< / a > < / div > < div class = "ttdeci" > ColChoice col_choice< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00848" > preprocessor.h:848< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceutil_html_a1e2d5c05e25343bc8e4fbccce0000d51" > < div class = "ttname" > < a href = "namespaceutil.html#a1e2d5c05e25343bc8e4fbccce0000d51" > util::Reverse< / a > < / div > < div class = "ttdeci" > BeginEndReverseIteratorWrapper< Container > Reverse(const Container & c)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "iterators_8h_source.html#l00098" > iterators.h:98< / a > < / div > < / div >
< div class = "ttc" id = "alp__types_8h_html" > < div class = "ttname" > < a href = "lp__types_8h.html" > lp_types.h< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a31ee82f6ef05c3da492c0376f910d015" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a31ee82f6ef05c3da492c0376f910d015" > operations_research::glop::kInvalidRow< / a > < / div > < div class = "ttdeci" > const RowIndex kInvalidRow(-1)< / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "asat_2lp__utils_8cc_html_a88215c8581662c40eec0fb8621c44af3" > < div class = "ttname" > < a href = "sat_2lp__utils_8cc.html#a88215c8581662c40eec0fb8621c44af3" > upper_bounds< / a > < / div > < div class = "ttdeci" > std::vector< double > upper_bounds< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sat_2lp__utils_8cc_source.html#l00444" > sat/lp_utils.cc:444< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_html_a096ed4f933f943ccb8859e0dc08b06ca" > < div class = "ttname" > < a href = "namespaceoperations__research.html#a096ed4f933f943ccb8859e0dc08b06ca" > operations_research::IsSmallerWithinTolerance< / a > < / div > < div class = "ttdeci" > bool IsSmallerWithinTolerance(FloatType x, FloatType y, FloatType tolerance)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "fp__utils_8h_source.html#l00153" > fp_utils.h:153< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_ab65a327cfc2a74c15fa26b91f19acc64" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#ab65a327cfc2a74c15fa26b91f19acc64" > operations_research::glop::ColToRowIndex< / a > < / div > < div class = "ttdeci" > RowIndex ColToRowIndex(ColIndex col)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__types_8h_source.html#l00051" > lp_types.h:51< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_dualizer_preprocessor_html_a8b7014a72cd02aa5a12eca1942447c06" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_dualizer_preprocessor.html#a8b7014a72cd02aa5a12eca1942447c06" > operations_research::glop::DualizerPreprocessor::ChangeStatusToDualStatus< / a > < / div > < div class = "ttdeci" > ProblemStatus ChangeStatusToDualStatus(ProblemStatus status) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03455" > preprocessor.cc:3455< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "apreprocessor_8h_html" > < div class = "ttname" > < a href = "preprocessor_8h.html" > preprocessor.h< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_vector_html_a997af931ec11394cec3418321c2ecc4b" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a997af931ec11394cec3418321c2ecc4b" > operations_research::glop::SparseVector::MultiplyByConstant< / a > < / div > < div class = "ttdeci" > void MultiplyByConstant(Fractional factor)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__vector_8h_source.html#l00762" > sparse_vector.h:762< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_row_deletion_helper_html_a2e33d930193e16f06f3c4d0309ff62c2" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_row_deletion_helper.html#a2e33d930193e16f06f3c4d0309ff62c2" > operations_research::glop::RowDeletionHelper::UnmarkRow< / a > < / div > < div class = "ttdeci" > void UnmarkRow(RowIndex row)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00248" > preprocessor.cc:248< / a > < / div > < / div >
< div class = "ttc" id = "astructoperations__research_1_1glop_1_1_problem_solution_html_af8a495c9872268c3e34d413d8b63ef66" > < div class = "ttname" > < a href = "structoperations__research_1_1glop_1_1_problem_solution.html#af8a495c9872268c3e34d413d8b63ef66" > operations_research::glop::ProblemSolution::primal_values< / a > < / div > < div class = "ttdeci" > DenseRow primal_values< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00659" > lp_data.h:659< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_acd138469679be137d0de53459b1342cb" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#acd138469679be137d0de53459b1342cb" > operations_research::glop::LinearProgram::variable_upper_bounds< / a > < / div > < div class = "ttdeci" > const DenseRow & variable_upper_bounds() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00232" > lp_data.h:232< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_doubleton_equality_row_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::DoubletonEqualityRowPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l03113" > preprocessor.cc:3113< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_column_deletion_helper_html_ab73f53154d99b3cd13dae72fd418985d" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_column_deletion_helper.html#ab73f53154d99b3cd13dae72fd418985d" > operations_research::glop::ColumnDeletionHelper::RestoreDeletedColumns< / a > < / div > < div class = "ttdeci" > void RestoreDeletedColumns(ProblemSolution *solution) const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00207" > preprocessor.cc:207< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_accurate_sum_html" > < div class = "ttname" > < a href = "classoperations__research_1_1_accurate_sum.html" > operations_research::AccurateSum< Fractional > < / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_implied_free_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_implied_free_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::ImpliedFreePreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l01504" > preprocessor.cc:1504< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_preprocessor_html" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_preprocessor.html" > operations_research::glop::SingletonPreprocessor< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00396" > preprocessor.h:396< / a > < / div > < / div >
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< div class = "ttc" id = "acp__model__fz__solver_8cc_html_a10a1eab179b472c030bdc2a2efef7219" > < div class = "ttname" > < a href = "cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219" > parameters< / a > < / div > < div class = "ttdeci" > SatParameters parameters< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__fz__solver_8cc_source.html#l00107" > cp_model_fz_solver.cc:107< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "apreprocessor_8cc_html_abe47a721d0dd1e0d7f060c1f4ae69167" > < div class = "ttname" > < a href = "preprocessor_8cc.html#abe47a721d0dd1e0d7f060c1f4ae69167" > RUN_PREPROCESSOR< / a > < / div > < div class = "ttdeci" > #define RUN_PREPROCESSOR(name)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l00057" > preprocessor.cc:57< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_undo_html_a9a2c9c31d675b34f6ec35cc1ca89e047a25c2ad27a05323ecadd63096cde29538" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_undo.html#a9a2c9c31d675b34f6ec35cc1ca89e047a25c2ad27a05323ecadd63096cde29538" > operations_research::glop::SingletonUndo::ZERO_COST_SINGLETON_COLUMN< / a > < / div > < div class = "ttdeci" > @ ZERO_COST_SINGLETON_COLUMN< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8h_source.html#l00343" > preprocessor.h:343< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "adefault__search_8cc_html_ac673bc430bdc3fdaa09f7becf98ef267" > < div class = "ttname" > < a href = "default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267" > name< / a > < / div > < div class = "ttdeci" > const std::string name< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "default__search_8cc_source.html#l00807" > default_search.cc:807< / a > < / div > < / div >
< div class = "ttc" id = "astatus_8h_html" > < div class = "ttname" > < a href = "status_8h.html" > status.h< / a > < / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_singleton_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_singleton_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::SingletonPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02758" > preprocessor.cc:2758< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_sparse_vector_html_a5b9746c75f781968b2f21e2e5701cd84" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_sparse_vector.html#a5b9746c75f781968b2f21e2e5701cd84" > operations_research::glop::SparseVector::RemoveNearZeroEntriesWithWeights< / a > < / div > < div class = "ttdeci" > void RemoveNearZeroEntriesWithWeights(Fractional threshold, const DenseVector & weights)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "sparse__vector_8h_source.html#l00720" > sparse_vector.h:720< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_linear_program_html_aa4e5168f378a3a4e86dcf409faf14937" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_linear_program.html#aa4e5168f378a3a4e86dcf409faf14937" > operations_research::glop::LinearProgram::constraint_upper_bounds< / a > < / div > < div class = "ttdeci" > const DenseColumn & constraint_upper_bounds() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "lp__data_8h_source.html#l00218" > lp_data.h:218< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_remove_near_zero_entries_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_remove_near_zero_entries_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::RemoveNearZeroEntriesPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02878" > preprocessor.cc:2878< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
< div class = "ttc" id = "anamespaceoperations__research_1_1glop_html_a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1glop.html#a1ac488f3db89f6d16a85c56f3243290ca74c506bd3d744fb5c2862229c8f2b6ce" > operations_research::glop::VariableStatus::AT_LOWER_BOUND< / a > < / div > < div class = "ttdeci" > @ AT_LOWER_BOUND< / div > < / div >
2020-10-09 12:00:09 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1glop_1_1_empty_constraint_preprocessor_html_a6ac5e2bce2fe4745f79d716c6ed14dcf" > < div class = "ttname" > < a href = "classoperations__research_1_1glop_1_1_empty_constraint_preprocessor.html#a6ac5e2bce2fe4745f79d716c6ed14dcf" > operations_research::glop::EmptyConstraintPreprocessor::RecoverSolution< / a > < / div > < div class = "ttdeci" > void RecoverSolution(ProblemSolution *solution) const final< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "preprocessor_8cc_source.html#l02118" > preprocessor.cc:2118< / a > < / div > < / div >
2020-09-02 09:42:51 +02:00
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