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< a href = "drat__writer_8h.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < div class = "line" > < a id = "l00001" name = "l00001" > < / a > < span class = "lineno" > 1< / span > < span class = "comment" > // Copyright 2010-2021 Google LLC< / span > < / div >
< div class = "line" > < a id = "l00002" 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 id = "l00003" 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 id = "l00004" 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 id = "l00005" name = "l00005" > < / a > < span class = "lineno" > 5< / span > < span class = "comment" > //< / span > < / div >
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< div class = "line" > < a id = "l00007" name = "l00007" > < / a > < span class = "lineno" > 7< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00008" name = "l00008" > < / a > < span class = "lineno" > 8< / span > < span class = "comment" > // Unless required by applicable law or agreed to in writing, software< / span > < / div >
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< div class = "line" > < a id = "l00014" name = "l00014" > < / a > < span class = "lineno" > 14< / span > < span class = "preprocessor" > #ifndef OR_TOOLS_SAT_DRAT_WRITER_H_< / span > < / div >
< div class = "line" > < a id = "l00015" name = "l00015" > < / a > < span class = "lineno" > 15< / span > < span class = "preprocessor" > #define OR_TOOLS_SAT_DRAT_WRITER_H_< / span > < / div >
< div class = "line" > < a id = "l00016" name = "l00016" > < / a > < span class = "lineno" > 16< / span > < / div >
< div class = "line" > < a id = "l00017" name = "l00017" > < / a > < span class = "lineno" > 17< / span > < span class = "preprocessor" > #include < string> < / span > < / div >
< div class = "line" > < a id = "l00018" name = "l00018" > < / a > < span class = "lineno" > 18< / span > < / div >
< div class = "line" > < a id = "l00019" name = "l00019" > < / a > < span class = "lineno" > 19< / span > < span class = "preprocessor" > #if !defined(__PORTABLE_PLATFORM__)< / span > < / div >
< div class = "line" > < a id = "l00020" name = "l00020" > < / a > < span class = "lineno" > 20< / span > < span class = "preprocessor" > #include " < a class = "code" href = "base_2file_8h.html" > ortools/base/file.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00021" name = "l00021" > < / a > < span class = "lineno" > 21< / span > < span class = "preprocessor" > #else< / span > < / div >
< div class = "line" > < a id = "l00022" name = "l00022" > < / a > < span class = "lineno" > 22< / span > < span class = "keyword" > class < / span > < a class = "code hl_class" href = "class_file.html" > File< / a > {};< / div >
< div class = "line" > < a id = "l00023" name = "l00023" > < / a > < span class = "lineno" > 23< / span > < span class = "preprocessor" > #endif < / span > < span class = "comment" > // !__PORTABLE_PLATFORM__< / span > < / div >
< div class = "line" > < a id = "l00024" name = "l00024" > < / a > < span class = "lineno" > 24< / span > < span class = "preprocessor" > #include " absl/types/span.h" < / span > < / div >
< div class = "line" > < a id = "l00025" name = "l00025" > < / a > < span class = "lineno" > 25< / span > < span class = "preprocessor" > #include " < a class = "code" href = "sat__base_8h.html" > ortools/sat/sat_base.h< / a > " < / span > < / div >
< div class = "line" > < a id = "l00026" name = "l00026" > < / a > < span class = "lineno" > 26< / span > < / div >
< div class = "line" > < a id = "l00027" name = "l00027" > < / a > < span class = "lineno" > 27< / span > < span class = "keyword" > namespace < / span > < a class = "code hl_namespace" href = "namespaceoperations__research.html" > operations_research< / a > {< / div >
< div class = "line" > < a id = "l00028" name = "l00028" > < / a > < span class = "lineno" > 28< / span > < span class = "keyword" > namespace < / span > sat {< / div >
< div class = "line" > < a id = "l00029" name = "l00029" > < / a > < span class = "lineno" > 29< / span > < / div >
< div class = "line" > < a id = "l00030" name = "l00030" > < / a > < span class = "lineno" > 30< / span > < span class = "comment" > // DRAT is a SAT proof format that allows a simple program to check that the< / span > < / div >
< div class = "line" > < a id = "l00031" name = "l00031" > < / a > < span class = "lineno" > 31< / span > < span class = "comment" > // problem is really UNSAT. The description of the format and a checker are< / span > < / div >
< div class = "line" > < a id = "l00032" name = "l00032" > < / a > < span class = "lineno" > 32< / span > < span class = "comment" > // available at: // http://www.cs.utexas.edu/~marijn/drat-trim/< / span > < / div >
< div class = "line" > < a id = "l00033" name = "l00033" > < / a > < span class = "lineno" > 33< / span > < span class = "comment" > //< / span > < / div >
< div class = "line" > < a id = "l00034" name = "l00034" > < / a > < span class = "lineno" > 34< / span > < span class = "comment" > // Note that DRAT proofs are often huge (can be GB), and take about as much time< / span > < / div >
< div class = "line" > < a id = "l00035" name = "l00035" > < / a > < span class = "lineno" > 35< / span > < span class = "comment" > // to check as it takes for the solver to find the proof in the first place!< / span > < / div >
< div class = "line" > < a id = "l00036" name = "l00036" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_drat_writer.html" > 36< / a > < / span > < span class = "keyword" > class < / span > < a class = "code hl_class" href = "classoperations__research_1_1sat_1_1_drat_writer.html" > DratWriter< / a > {< / div >
< div class = "line" > < a id = "l00037" name = "l00037" > < / a > < span class = "lineno" > 37< / span > < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a id = "l00038" name = "l00038" > < / a > < span class = "lineno" > < a class = "line" href = "classoperations__research_1_1sat_1_1_drat_writer.html#a270466497f7788f605dfb8374cbafa57" > 38< / a > < / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_drat_writer.html#a270466497f7788f605dfb8374cbafa57" > DratWriter< / a > (< span class = "keywordtype" > bool< / span > in_binary_format, < a class = "code hl_class" href = "class_file.html" > File< / a > * output)< / div >
< div class = "line" > < a id = "l00039" name = "l00039" > < / a > < span class = "lineno" > 39< / span > : in_binary_format_(in_binary_format), output_(output) {}< / div >
< div class = "line" > < a id = "l00040" name = "l00040" > < / a > < span class = "lineno" > 40< / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_drat_writer.html#aaddc7cfa3444e264600a1a3a192de532" > ~DratWriter< / a > ();< / div >
< div class = "line" > < a id = "l00041" name = "l00041" > < / a > < span class = "lineno" > 41< / span > < / div >
< div class = "line" > < a id = "l00042" name = "l00042" > < / a > < span class = "lineno" > 42< / span > < span class = "comment" > // Writes a new clause to the DRAT output. Note that the RAT property is only< / span > < / div >
< div class = "line" > < a id = "l00043" name = "l00043" > < / a > < span class = "lineno" > 43< / span > < span class = "comment" > // checked on the first literal.< / span > < / div >
< div class = "line" > < a id = "l00044" name = "l00044" > < / a > < span class = "lineno" > 44< / span > < span class = "keywordtype" > void< / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_drat_writer.html#a98bacf41c50979896b4a5f5e41fb0ccf" > AddClause< / a > (absl::Span< const Literal> clause);< / div >
< div class = "line" > < a id = "l00045" name = "l00045" > < / a > < span class = "lineno" > 45< / span > < / div >
< div class = "line" > < a id = "l00046" name = "l00046" > < / a > < span class = "lineno" > 46< / span > < span class = "comment" > // Writes a " deletion" information about a clause that has been added before< / span > < / div >
< div class = "line" > < a id = "l00047" name = "l00047" > < / a > < span class = "lineno" > 47< / span > < span class = "comment" > // to the DRAT output. Note that it is also possible to delete a clause from< / span > < / div >
< div class = "line" > < a id = "l00048" name = "l00048" > < / a > < span class = "lineno" > 48< / span > < span class = "comment" > // the problem.< / span > < / div >
< div class = "line" > < a id = "l00049" name = "l00049" > < / a > < span class = "lineno" > 49< / span > < span class = "keywordtype" > void< / span > < a class = "code hl_function" href = "classoperations__research_1_1sat_1_1_drat_writer.html#a18349231154d0f5eaee94fe213f347e6" > DeleteClause< / a > (absl::Span< const Literal> clause);< / div >
< div class = "line" > < a id = "l00050" name = "l00050" > < / a > < span class = "lineno" > 50< / span > < / div >
< div class = "line" > < a id = "l00051" name = "l00051" > < / a > < span class = "lineno" > 51< / span > < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a id = "l00052" name = "l00052" > < / a > < span class = "lineno" > 52< / span > < span class = "keywordtype" > void< / span > WriteClause(absl::Span< const Literal> clause);< / div >
< div class = "line" > < a id = "l00053" name = "l00053" > < / a > < span class = "lineno" > 53< / span > < / div >
< div class = "line" > < a id = "l00054" name = "l00054" > < / a > < span class = "lineno" > 54< / span > < span class = "comment" > // TODO(user): Support binary format as proof in text format can be large.< / span > < / div >
< div class = "line" > < a id = "l00055" name = "l00055" > < / a > < span class = "lineno" > 55< / span > < span class = "keywordtype" > bool< / span > in_binary_format_;< / div >
< div class = "line" > < a id = "l00056" name = "l00056" > < / a > < span class = "lineno" > 56< / span > < a class = "code hl_class" href = "class_file.html" > File< / a > * output_;< / div >
< div class = "line" > < a id = "l00057" name = "l00057" > < / a > < span class = "lineno" > 57< / span > < / div >
< div class = "line" > < a id = "l00058" name = "l00058" > < / a > < span class = "lineno" > 58< / span > std::string buffer_;< / div >
< div class = "line" > < a id = "l00059" name = "l00059" > < / a > < span class = "lineno" > 59< / span > };< / div >
< div class = "line" > < a id = "l00060" name = "l00060" > < / a > < span class = "lineno" > 60< / span > < / div >
< div class = "line" > < a id = "l00061" name = "l00061" > < / a > < span class = "lineno" > 61< / span > } < span class = "comment" > // namespace sat< / span > < / div >
< div class = "line" > < a id = "l00062" name = "l00062" > < / a > < span class = "lineno" > 62< / span > } < span class = "comment" > // namespace operations_research< / span > < / div >
< div class = "line" > < a id = "l00063" name = "l00063" > < / a > < span class = "lineno" > 63< / span > < / div >
< div class = "line" > < a id = "l00064" name = "l00064" > < / a > < span class = "lineno" > 64< / span > < span class = "preprocessor" > #endif < / span > < span class = "comment" > // OR_TOOLS_SAT_DRAT_WRITER_H_< / span > < / div >
< div class = "ttc" id = "abase_2file_8h_html" > < div class = "ttname" > < a href = "base_2file_8h.html" > file.h< / a > < / div > < / div >
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< div class = "ttc" id = "aclass_file_html" > < div class = "ttname" > < a href = "class_file.html" > File< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2file_8h_source.html#l00033" > base/file.h:33< / a > < / div > < / div >
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< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_drat_writer_html" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_drat_writer.html" > operations_research::sat::DratWriter< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "drat__writer_8h_source.html#l00036" > drat_writer.h:36< / a > < / div > < / div >
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< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_drat_writer_html_a18349231154d0f5eaee94fe213f347e6" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_drat_writer.html#a18349231154d0f5eaee94fe213f347e6" > operations_research::sat::DratWriter::DeleteClause< / a > < / div > < div class = "ttdeci" > void DeleteClause(absl::Span< const Literal > clause)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "drat__writer_8cc_source.html#l00043" > drat_writer.cc:43< / a > < / div > < / div >
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< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_drat_writer_html_a270466497f7788f605dfb8374cbafa57" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_drat_writer.html#a270466497f7788f605dfb8374cbafa57" > operations_research::sat::DratWriter::DratWriter< / a > < / div > < div class = "ttdeci" > DratWriter(bool in_binary_format, File *output)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "drat__writer_8h_source.html#l00038" > drat_writer.h:38< / a > < / div > < / div >
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< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_drat_writer_html_a98bacf41c50979896b4a5f5e41fb0ccf" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_drat_writer.html#a98bacf41c50979896b4a5f5e41fb0ccf" > operations_research::sat::DratWriter::AddClause< / a > < / div > < div class = "ttdeci" > void AddClause(absl::Span< const Literal > clause)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "drat__writer_8cc_source.html#l00039" > drat_writer.cc:39< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1sat_1_1_drat_writer_html_aaddc7cfa3444e264600a1a3a192de532" > < div class = "ttname" > < a href = "classoperations__research_1_1sat_1_1_drat_writer.html#aaddc7cfa3444e264600a1a3a192de532" > operations_research::sat::DratWriter::~DratWriter< / a > < / div > < div class = "ttdeci" > ~DratWriter()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "drat__writer_8cc_source.html#l00030" > drat_writer.cc:30< / a > < / div > < / div >
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< div class = "ttc" id = "anamespaceoperations__research_html" > < div class = "ttname" > < a href = "namespaceoperations__research.html" > operations_research< / a > < / div > < div class = "ttdoc" > Collection of objects used to extend the Constraint Solver library.< / 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 = "asat__base_8h_html" > < div class = "ttname" > < a href = "sat__base_8h.html" > sat_base.h< / a > < / div > < / div >
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