2020-09-01 16:00:33 +02:00
<!-- HTML header for doxygen 1.8.18 -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
< html xmlns = "http://www.w3.org/1999/xhtml" >
< head >
< meta http-equiv = "Content-Type" content = "text/xhtml;charset=UTF-8" / >
< meta http-equiv = "X-UA-Compatible" content = "IE=9" / >
2021-01-26 11:28:50 +01:00
< meta name = "generator" content = "Doxygen 1.9.1" / >
2020-09-01 16:00:33 +02:00
< meta name = "viewport" content = "width=device-width, initial-scale=1" / >
< title > OR-Tools: glpk_interface.cc Source File< / title >
< link href = "tabs.css" rel = "stylesheet" type = "text/css" / >
< script type = "text/javascript" src = "jquery.js" > < / script >
< script type = "text/javascript" src = "dynsections.js" > < / script >
< link href = "navtree.css" rel = "stylesheet" type = "text/css" / >
< script type = "text/javascript" src = "resize.js" > < / script >
< script type = "text/javascript" src = "navtreedata.js" > < / script >
< script type = "text/javascript" src = "navtree.js" > < / script >
< link href = "search/search.css" rel = "stylesheet" type = "text/css" / >
< script type = "text/javascript" src = "search/searchdata.js" > < / script >
< script type = "text/javascript" src = "search/search.js" > < / script >
< link href = "doxygen.css" rel = "stylesheet" type = "text/css" / >
< link href = "styleSheet.tmp.css" rel = "stylesheet" type = "text/css" / >
< / head >
< body >
< div id = "top" > <!-- do not remove this div, it is closed by doxygen! -->
< div id = "titlearea" >
< table cellspacing = "0" cellpadding = "0" >
< tbody >
< tr style = "height: 56px;" >
< td id = "projectlogo" > < img alt = "Logo" src = "orLogo.png" / > < / td >
< td id = "projectalign" style = "padding-left: 0.5em;" >
< div id = "projectname" > OR-Tools
2021-04-27 23:00:03 +02:00
  < span id = "projectnumber" > 9.0< / span >
2020-09-01 16:00:33 +02:00
< / div >
< / td >
< / tr >
< / tbody >
< / table >
< / div >
<!-- end header part -->
2021-01-26 11:28:50 +01:00
<!-- Generated by Doxygen 1.9.1 -->
2020-09-01 16:00:33 +02:00
< script type = "text/javascript" >
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3& dn=gpl-2.0.txt GPL-v2 */
2021-01-26 11:28:50 +01:00
var searchBox = new SearchBox("searchBox", "search",false,'Search','.html');
2020-09-01 16:00:33 +02:00
/* @license-end */
< / script >
< script type = "text/javascript" src = "menudata.js" > < / script >
< script type = "text/javascript" src = "menu.js" > < / script >
< script type = "text/javascript" >
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3& dn=gpl-2.0.txt GPL-v2 */
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */< / script >
< div id = "main-nav" > < / div >
< / div > <!-- top -->
< div id = "side-nav" class = "ui-resizable side-nav-resizable" >
< div id = "nav-tree" >
< div id = "nav-tree-contents" >
< div id = "nav-sync" class = "sync" > < / div >
< / div >
< / div >
< div id = "splitbar" style = "-moz-user-select:none;"
class="ui-resizable-handle">
< / div >
< / div >
< script type = "text/javascript" >
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3& dn=gpl-2.0.txt GPL-v2 */
$(document).ready(function(){initNavTree('glpk__interface_8cc_source.html',''); initResizable(); });
/* @license-end */
< / script >
< div id = "doc-content" >
<!-- window showing the filter options -->
< div id = "MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
< / div >
<!-- iframe showing the search results (closed by default) -->
< div id = "MSearchResultsWindow" >
< iframe src = "javascript:void(0)" frameborder = "0"
name="MSearchResults" id="MSearchResults">
< / iframe >
< / div >
< div class = "header" >
< div class = "headertitle" >
< div class = "title" > glpk_interface.cc< / div > < / div >
< / div > <!-- header -->
< div class = "contents" >
2021-04-27 23:00:03 +02:00
< a href = "glpk__interface_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 2010-2021 Google LLC< / span > < / div >
2020-09-01 16:00:33 +02:00
< 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 = "comment" > //< / 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" > #if defined(USE_GLPK)< / 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 < cmath> < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "preprocessor" > #include < cstddef> < / span > < / div >
2021-04-27 23:00:03 +02:00
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "preprocessor" > #include < cstdint> < / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "preprocessor" > #include < limits> < / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "preprocessor" > #include < memory> < / span > < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < span class = "preprocessor" > #include < string> < / span > < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "preprocessor" > #include < utility> < / span > < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "preprocessor" > #include < vector> < / span > < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "preprocessor" > #include " absl/memory/memory.h" < / span > < / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "preprocessor" > #include " absl/strings/str_format.h" < / span > < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "commandlineflags_8h.html" > ortools/base/commandlineflags.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "hash_8h.html" > ortools/base/hash.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "integral__types_8h.html" > ortools/base/integral_types.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "base_2logging_8h.html" > ortools/base/logging.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "timer_8h.html" > ortools/base/timer.h< / a > " < / span > < / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "preprocessor" > #include " < a class = "code" href = "linear__solver_8h.html" > ortools/linear_solver/linear_solver.h< / a > " < / span > < / 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 >   < span class = "keyword" > extern< / span > < span class = "stringliteral" > " C" < / span > {< / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "preprocessor" > #include " glpk.h" < / span > < / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   }< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < span class = "keyword" > namespace < / span > < a class = "code" href = "namespaceoperations__research.html" > operations_research< / a > {< / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < span class = "comment" > // Class to store information gathered in the callback< / span > < / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "keyword" > class < / span > GLPKInformation {< / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "keyword" > explicit< / span > GLPKInformation(< span class = "keywordtype" > bool< / span > maximize) : num_all_nodes_(0) {< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   ResetBestObjectiveBound(maximize);< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   }< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "keywordtype" > void< / span > Reset(< span class = "keywordtype" > bool< / span > maximize) {< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   num_all_nodes_ = 0;< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   ResetBestObjectiveBound(maximize);< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   }< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "keywordtype" > void< / span > ResetBestObjectiveBound(< span class = "keywordtype" > bool< / span > maximize) {< / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "keywordflow" > if< / span > (maximize) {< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   best_objective_bound_ = std::numeric_limits< double> ::infinity();< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   best_objective_bound_ = -std::numeric_limits< double> ::infinity();< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   }< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   }< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "keywordtype" > int< / span > num_all_nodes_;< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "keywordtype" > double< / span > best_objective_bound_;< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   };< / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "comment" > // Function to be called in the GLPK callback< / span > < / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < span class = "keywordtype" > void< / span > GLPKGatherInformationCallback(glp_tree* tree, < span class = "keywordtype" > void< / span > * info) {< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < a class = "code" href = "base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274" > CHECK< / a > (tree != < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < a class = "code" href = "base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274" > CHECK< / a > (info != < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   GLPKInformation* glpk_info = < span class = "keyword" > reinterpret_cast< < / span > GLPKInformation*< span class = "keyword" > > < / span > (info);< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < span class = "keywordflow" > switch< / span > (glp_ios_reason(tree)) {< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < span class = "comment" > // The best bound and the number of nodes change only when GLPK< / span > < / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "comment" > // branches, generates cuts or finds an integer solution.< / span > < / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "keywordflow" > case< / span > GLP_ISELECT:< / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "keywordflow" > case< / span > GLP_IROWGEN:< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   < span class = "keywordflow" > case< / span > GLP_IBINGO: {< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < span class = "comment" > // Get total number of nodes< / span > < / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   glp_ios_tree_size(tree, < span class = "keyword" > nullptr< / span > , < span class = "keyword" > nullptr< / span > , & glpk_info-> num_all_nodes_);< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "comment" > // Get best bound< / span > < / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "keywordtype" > int< / span > node_id = glp_ios_best_node(tree);< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < span class = "keywordflow" > if< / span > (node_id > 0) {< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   glpk_info-> best_objective_bound_ = glp_ios_node_bound(tree, node_id);< / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   }< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   }< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   }< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   }< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < span class = "comment" > // ----- GLPK Solver -----< / span > < / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < span class = "comment" > // GLPK indexes its variables and constraints starting at 1.< / span > < / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "keywordtype" > int< / span > MPSolverIndexToGlpkIndex(< span class = "keywordtype" > int< / span > < a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > ) { < span class = "keywordflow" > return< / span > < a class = "code" href = "pack_8cc.html#a750b5d744c39a06bfb13e6eb010e35d0" > index< / a > + 1; }< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < span class = "keyword" > class < / span > GLPKInterface : < span class = "keyword" > public< / span > MPSolverInterface {< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   < span class = "comment" > // Constructor that takes a name for the underlying glpk solver.< / span > < / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   GLPKInterface(MPSolver* < span class = "keyword" > const< / span > solver, < span class = "keywordtype" > bool< / span > mip);< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   ~GLPKInterface() < span class = "keyword" > override< / span > ;< / div >
< 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" > // Sets the optimization direction (min/max).< / span > < / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "keywordtype" > void< / span > SetOptimizationDirection(< span class = "keywordtype" > bool< / span > maximize) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   < span class = "comment" > // ----- Solve -----< / span > < / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < span class = "comment" > // Solve the problem using the parameter values specified.< / span > < / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < a class = "code" href = "classoperations__research_1_1_m_p_solver.html#a573d479910e373f5d771d303e440587d" > MPSolver::ResultStatus< / a > < a class = "code" href = "namespaceoperations__research_1_1sat.html#af904018d9a1c9983624b1ce0331f2bf5" > Solve< / a > (< span class = "keyword" > const< / span > MPSolverParameters& param) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < span class = "comment" > // ----- Model modifications and extraction -----< / span > < / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "comment" > // Resets extracted model< / span > < / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < span class = "keywordtype" > void< / span > Reset() < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < span class = "comment" > // Modify bounds.< / span > < / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < span class = "keywordtype" > void< / span > SetVariableBounds(< span class = "keywordtype" > int< / span > mpsolver_var_index, < span class = "keywordtype" > double< / span > lb, < span class = "keywordtype" > double< / span > ub) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < span class = "keywordtype" > void< / span > SetVariableInteger(< span class = "keywordtype" > int< / span > mpsolver_var_index, < span class = "keywordtype" > bool< / span > integer) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   < span class = "keywordtype" > void< / span > SetConstraintBounds(< span class = "keywordtype" > int< / span > mpsolver_constraint_index, < span class = "keywordtype" > double< / span > lb,< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < span class = "keywordtype" > double< / span > ub) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < span class = "comment" > // Add Constraint incrementally.< / span > < / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < span class = "keywordtype" > void< / span > AddRowConstraint(MPConstraint* < span class = "keyword" > const< / span > < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "comment" > // Add variable incrementally.< / span > < / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < span class = "keywordtype" > void< / span > AddVariable(MPVariable* < span class = "keyword" > const< / span > < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < span class = "comment" > // Change a coefficient in a constraint.< / span > < / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "keywordtype" > void< / span > SetCoefficient(MPConstraint* < span class = "keyword" > const< / span > constraint,< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < span class = "keyword" > const< / span > MPVariable* < span class = "keyword" > const< / span > variable, < span class = "keywordtype" > double< / span > new_value,< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < span class = "keywordtype" > double< / span > old_value) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   < span class = "comment" > // Clear a constraint from all its terms.< / span > < / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < span class = "keywordtype" > void< / span > ClearConstraint(MPConstraint* < span class = "keyword" > const< / span > constraint) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "comment" > // Change a coefficient in the linear objective< / span > < / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   < span class = "keywordtype" > void< / span > SetObjectiveCoefficient(< span class = "keyword" > const< / span > MPVariable* < span class = "keyword" > const< / span > variable,< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < span class = "keywordtype" > double< / span > < a class = "code" href = "routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba" > coefficient< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   < span class = "comment" > // Change the constant term in the linear objective.< / span > < / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < span class = "keywordtype" > void< / span > SetObjectiveOffset(< span class = "keywordtype" > double< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   < span class = "comment" > // Clear the objective from all its terms.< / span > < / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < span class = "keywordtype" > void< / span > ClearObjective() < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   < / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   < span class = "comment" > // ------ Query statistics on the solution and the solve ------< / span > < / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   < span class = "comment" > // Number of simplex iterations< / span > < / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   int64_t iterations() < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   < span class = "comment" > // Number of branch-and-bound nodes. Only available for discrete problems.< / span > < / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   int64_t < a class = "code" href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > () < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   < / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   < span class = "comment" > // Returns the basis status of a row.< / span > < / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < a class = "code" href = "classoperations__research_1_1_m_p_solver.html#afd922eb2bef96597c426557a8056f76d" > MPSolver::BasisStatus< / a > row_status(< span class = "keywordtype" > int< / span > constraint_index) < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "comment" > // Returns the basis status of a column.< / span > < / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   < a class = "code" href = "classoperations__research_1_1_m_p_solver.html#afd922eb2bef96597c426557a8056f76d" > MPSolver::BasisStatus< / a > column_status(< span class = "keywordtype" > int< / span > variable_index) < span class = "keyword" > const override< / 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 = "comment" > // Checks whether a feasible solution exists.< / span > < / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   < span class = "keywordtype" > bool< / span > CheckSolutionExists() < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < span class = "comment" > // ----- Misc -----< / span > < / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "comment" > // Query problem type.< / span > < / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < span class = "keywordtype" > bool< / span > IsContinuous()< span class = "keyword" > const override < / span > { < span class = "keywordflow" > return< / span > IsLP(); }< / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   < span class = "keywordtype" > bool< / span > IsLP()< span class = "keyword" > const override < / span > { < span class = "keywordflow" > return< / span > !mip_; }< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   < span class = "keywordtype" > bool< / span > IsMIP()< span class = "keyword" > const override < / span > { < span class = "keywordflow" > return< / span > mip_; }< / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   < / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < span class = "keywordtype" > void< / span > ExtractNewVariables() < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   < span class = "keywordtype" > void< / span > ExtractNewConstraints() < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   < span class = "keywordtype" > void< / span > ExtractObjective() < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   < / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   std::string SolverVersion()< span class = "keyword" > const override < / span > {< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   < span class = "keywordflow" > return< / span > absl::StrFormat(< span class = "stringliteral" > " GLPK %s" < / span > , glp_version());< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   }< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   < / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   < span class = "keywordtype" > void< / span > * underlying_solver()< span class = "keyword" > override < / span > { < span class = "keywordflow" > return< / span > < span class = "keyword" > reinterpret_cast< < / span > < span class = "keywordtype" > void< / span > *< span class = "keyword" > > < / span > (lp_); }< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   < span class = "keywordtype" > double< / span > ComputeExactConditionNumber() < span class = "keyword" > const override< / span > ;< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < span class = "comment" > // Configure the solver' s parameters.< / span > < / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   < span class = "keywordtype" > void< / span > ConfigureGLPKParameters(< span class = "keyword" > const< / span > MPSolverParameters& param);< / 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 >   < span class = "comment" > // Set all parameters in the underlying solver.< / span > < / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   < span class = "keywordtype" > void< / span > SetParameters(< span class = "keyword" > const< / span > MPSolverParameters& param) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   < span class = "comment" > // Set each parameter in the underlying solver.< / span > < / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   < span class = "keywordtype" > void< / span > SetRelativeMipGap(< span class = "keywordtype" > double< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   < span class = "keywordtype" > void< / span > SetPrimalTolerance(< span class = "keywordtype" > double< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   < span class = "keywordtype" > void< / span > SetDualTolerance(< span class = "keywordtype" > double< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   < span class = "keywordtype" > void< / span > SetPresolveMode(< span class = "keywordtype" > int< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   < span class = "keywordtype" > void< / span > SetScalingMode(< span class = "keywordtype" > int< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) < span class = "keyword" > override< / span > ;< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   < span class = "keywordtype" > void< / span > SetLpAlgorithm(< span class = "keywordtype" > int< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) < span class = "keyword" > override< / 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 = "keywordtype" > void< / span > ExtractOldConstraints();< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < span class = "keywordtype" > void< / span > ExtractOneConstraint(MPConstraint* < span class = "keyword" > const< / span > constraint, < span class = "keywordtype" > int< / span > * < span class = "keyword" > const< / span > indices,< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   < span class = "keywordtype" > double< / span > * < span class = "keyword" > const< / span > coefs);< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   < span class = "comment" > // Transforms basis status from GLPK integer code to MPSolver::BasisStatus.< / span > < / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   < a class = "code" href = "classoperations__research_1_1_m_p_solver.html#afd922eb2bef96597c426557a8056f76d" > MPSolver::BasisStatus< / a > TransformGLPKBasisStatus(< span class = "keywordtype" > int< / span > glpk_basis_status) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   < / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   < span class = "comment" > // Computes the L1-norm of the current scaled basis.< / span > < / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   < span class = "comment" > // The L1-norm |A| is defined as max_j sum_i |a_ij|< / span > < / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   < span class = "comment" > // This method is available only for continuous problems.< / span > < / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   < span class = "keywordtype" > double< / span > ComputeScaledBasisL1Norm(< span class = "keywordtype" > int< / span > num_rows, < span class = "keywordtype" > int< / span > num_cols,< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   < span class = "keywordtype" > double< / span > * row_scaling_factor,< / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   < span class = "keywordtype" > double< / span > * column_scaling_factor) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   < / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   < span class = "comment" > // Computes the L1-norm of the inverse of the current scaled< / span > < / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   < span class = "comment" > // basis.< / span > < / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   < span class = "comment" > // This method is available only for continuous problems.< / span > < / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   < span class = "keywordtype" > double< / span > ComputeInverseScaledBasisL1Norm(< span class = "keywordtype" > int< / span > num_rows, < span class = "keywordtype" > int< / span > num_cols,< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   < span class = "keywordtype" > double< / span > * row_scaling_factor,< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   < span class = "keywordtype" > double< / span > * column_scaling_factor) < span class = "keyword" > const< / span > ;< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   < / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   glp_prob* lp_;< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   < span class = "keywordtype" > bool< / span > mip_;< / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   < / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   < span class = "comment" > // Parameters< / span > < / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   glp_smcp lp_param_;< / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   glp_iocp mip_param_;< / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   < span class = "comment" > // For the callback< / span > < / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   std::unique_ptr< GLPKInformation> mip_callback_info_;< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   };< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   < / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   < span class = "comment" > // Creates a LP/MIP instance with the specified name and minimization objective.< / span > < / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   GLPKInterface::GLPKInterface(MPSolver* < span class = "keyword" > const< / span > solver, < span class = "keywordtype" > bool< / span > mip)< / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   : MPSolverInterface(solver), lp_(nullptr), mip_(mip) {< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   lp_ = glp_create_prob();< / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   glp_set_prob_name(lp_, solver_-> name_.c_str());< / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   glp_set_obj_dir(lp_, GLP_MIN);< / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   mip_callback_info_ = absl::make_unique< GLPKInformation> (< a class = "code" href = "search_8cc.html#a9648c36eafdd6183052aeec5bef2d8b2" > maximize_< / a > );< / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   }< / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   < / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   < span class = "comment" > // Frees the LP memory allocations.< / span > < / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   GLPKInterface::~GLPKInterface() {< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   < a class = "code" href = "base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274" > CHECK< / a > (lp_ != < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   glp_delete_prob(lp_);< / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   lp_ = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   }< / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   < / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::Reset() {< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   < a class = "code" href = "base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274" > CHECK< / a > (lp_ != < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   glp_delete_prob(lp_);< / div >
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   lp_ = glp_create_prob();< / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   glp_set_prob_name(lp_, solver_-> name_.c_str());< / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   glp_set_obj_dir(lp_, < a class = "code" href = "search_8cc.html#a9648c36eafdd6183052aeec5bef2d8b2" > maximize_< / a > ? GLP_MAX : GLP_MIN);< / div >
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   ResetExtractionInformation();< / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   }< / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   < / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   < span class = "comment" > // ------ Model modifications and extraction -----< / span > < / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   < / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   < span class = "comment" > // Not cached< / span > < / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::SetOptimizationDirection(< span class = "keywordtype" > bool< / span > maximize) {< / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   InvalidateSolutionSynchronization();< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   glp_set_obj_dir(lp_, maximize ? GLP_MAX : GLP_MIN);< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   }< / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   < / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::SetVariableBounds(< span class = "keywordtype" > int< / span > mpsolver_var_index, < span class = "keywordtype" > double< / span > lb,< / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   < span class = "keywordtype" > double< / span > ub) {< / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   InvalidateSolutionSynchronization();< / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   < span class = "keywordflow" > if< / span > (!variable_is_extracted(mpsolver_var_index)) {< / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > 248< / span >   sync_status_ = MUST_RELOAD;< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   }< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   < span class = "comment" > // Not cached if the variable has been extracted.< / span > < / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (lp_ != < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > infinity = solver_-> infinity();< / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > glpk_var_index = MPSolverIndexToGlpkIndex(mpsolver_var_index);< / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   < span class = "keywordflow" > if< / span > (lb != -infinity) {< / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   < span class = "keywordflow" > if< / span > (ub != infinity) {< / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   < span class = "keywordflow" > if< / span > (lb == ub) {< / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   glp_set_col_bnds(lp_, glpk_var_index, GLP_FX, lb, ub);< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   glp_set_col_bnds(lp_, glpk_var_index, GLP_DB, lb, ub);< / div >
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   }< / div >
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   glp_set_col_bnds(lp_, glpk_var_index, GLP_LO, lb, 0.0);< / div >
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   }< / div >
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (ub != infinity) {< / div >
< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   glp_set_col_bnds(lp_, glpk_var_index, GLP_UP, 0.0, ub);< / div >
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   glp_set_col_bnds(lp_, glpk_var_index, GLP_FR, 0.0, 0.0);< / div >
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   }< / div >
< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   }< / 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 >   < span class = "keywordtype" > void< / span > GLPKInterface::SetVariableInteger(< span class = "keywordtype" > int< / span > mpsolver_var_index, < span class = "keywordtype" > bool< / span > integer) {< / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   InvalidateSolutionSynchronization();< / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   < span class = "keywordflow" > if< / span > (mip_) {< / div >
< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   < span class = "keywordflow" > if< / span > (variable_is_extracted(mpsolver_var_index)) {< / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   < span class = "comment" > // Not cached if the variable has been extracted.< / span > < / div >
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / span >   glp_set_col_kind(lp_, MPSolverIndexToGlpkIndex(mpsolver_var_index),< / div >
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   integer ? GLP_IV : GLP_CV);< / div >
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   sync_status_ = MUST_RELOAD;< / div >
< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   }< / div >
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > 282< / span >   }< / div >
< 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 = "keywordtype" > void< / span > GLPKInterface::SetConstraintBounds(< span class = "keywordtype" > int< / span > mpsolver_constraint_index,< / div >
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   < span class = "keywordtype" > double< / span > lb, < span class = "keywordtype" > double< / span > ub) {< / div >
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > 287< / span >   InvalidateSolutionSynchronization();< / div >
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   < span class = "keywordflow" > if< / span > (!constraint_is_extracted(mpsolver_constraint_index)) {< / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   sync_status_ = MUST_RELOAD;< / div >
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   }< / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   < span class = "comment" > // Not cached if the row has been extracted< / span > < / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > glpk_constraint_index =< / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   MPSolverIndexToGlpkIndex(mpsolver_constraint_index);< / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > 295< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (lp_ != < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > 296< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > infinity = solver_-> infinity();< / div >
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   < span class = "keywordflow" > if< / span > (lb != -infinity) {< / div >
< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   < span class = "keywordflow" > if< / span > (ub != infinity) {< / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   < span class = "keywordflow" > if< / span > (lb == ub) {< / div >
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   glp_set_row_bnds(lp_, glpk_constraint_index, GLP_FX, lb, ub);< / div >
< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > 302< / span >   glp_set_row_bnds(lp_, glpk_constraint_index, GLP_DB, lb, ub);< / div >
< div class = "line" > < a name = "l00303" > < / a > < span class = "lineno" > 303< / span >   }< / div >
< div class = "line" > < a name = "l00304" > < / a > < span class = "lineno" > 304< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00305" > < / a > < span class = "lineno" > 305< / span >   glp_set_row_bnds(lp_, glpk_constraint_index, GLP_LO, lb, 0.0);< / div >
< div class = "line" > < a name = "l00306" > < / a > < span class = "lineno" > 306< / span >   }< / div >
< div class = "line" > < a name = "l00307" > < / a > < span class = "lineno" > 307< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (ub != infinity) {< / div >
< div class = "line" > < a name = "l00308" > < / a > < span class = "lineno" > 308< / span >   glp_set_row_bnds(lp_, glpk_constraint_index, GLP_UP, 0.0, ub);< / div >
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   glp_set_row_bnds(lp_, glpk_constraint_index, GLP_FR, 0.0, 0.0);< / div >
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > 311< / span >   }< / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   }< / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / span >   < / div >
< div class = "line" > < a name = "l00314" > < / a > < span class = "lineno" > 314< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::SetCoefficient(MPConstraint* < span class = "keyword" > const< / span > constraint,< / div >
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   < span class = "keyword" > const< / span > MPVariable* < span class = "keyword" > const< / span > variable,< / div >
< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   < span class = "keywordtype" > double< / span > new_value, < span class = "keywordtype" > double< / span > old_value) {< / div >
< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   InvalidateSolutionSynchronization();< / div >
< div class = "line" > < a name = "l00318" > < / a > < span class = "lineno" > 318< / span >   < span class = "comment" > // GLPK does not allow to modify one coefficient at a time, so we< / span > < / div >
< div class = "line" > < a name = "l00319" > < / a > < span class = "lineno" > 319< / span >   < span class = "comment" > // extract the whole constraint again, if it has been extracted< / span > < / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > 320< / span >   < span class = "comment" > // already and if it does not contain new variables. Otherwise, we< / span > < / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   < span class = "comment" > // cache the modification.< / span > < / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   < span class = "keywordflow" > if< / span > (constraint_is_extracted(constraint-> index()) & & < / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   (sync_status_ == MODEL_SYNCHRONIZED ||< / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   !constraint-> ContainsNewVariables())) {< / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > size = constraint-> coefficients_.size();< / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   std::unique_ptr< int[]> indices(< span class = "keyword" > new< / span > < span class = "keywordtype" > int< / span > [size + 1]);< / div >
< div class = "line" > < a name = "l00327" > < / a > < span class = "lineno" > 327< / span >   std::unique_ptr< double[]> coefs(< span class = "keyword" > new< / span > < span class = "keywordtype" > double< / span > [size + 1]);< / div >
< div class = "line" > < a name = "l00328" > < / a > < span class = "lineno" > 328< / span >   ExtractOneConstraint(constraint, indices.get(), coefs.get());< / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   }< / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   }< / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > 331< / span >   < / div >
< div class = "line" > < a name = "l00332" > < / a > < span class = "lineno" > 332< / span >   < span class = "comment" > // Not cached< / span > < / div >
< div class = "line" > < a name = "l00333" > < / a > < span class = "lineno" > 333< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::ClearConstraint(MPConstraint* < span class = "keyword" > const< / span > constraint) {< / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   InvalidateSolutionSynchronization();< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   < span class = "comment" > // Constraint may have not been extracted yet.< / span > < / div >
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > 336< / span >   < span class = "keywordflow" > if< / span > (constraint_is_extracted(constraint-> index())) {< / div >
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   glp_set_mat_row(lp_, MPSolverIndexToGlpkIndex(constraint-> index()), 0,< / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   < span class = "keyword" > nullptr< / span > , < span class = "keyword" > nullptr< / 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 >   }< / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > 341< / span >   < / div >
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > 342< / span >   < span class = "comment" > // Cached< / span > < / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::SetObjectiveCoefficient(< span class = "keyword" > const< / span > MPVariable* < span class = "keyword" > const< / span > variable,< / div >
< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   < span class = "keywordtype" > double< / span > < a class = "code" href = "routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba" > coefficient< / a > ) {< / div >
< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   sync_status_ = MUST_RELOAD;< / div >
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   }< / div >
< div class = "line" > < a name = "l00347" > < / a > < span class = "lineno" > 347< / span >   < / div >
< div class = "line" > < a name = "l00348" > < / a > < span class = "lineno" > 348< / span >   < span class = "comment" > // Cached< / span > < / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::SetObjectiveOffset(< span class = "keywordtype" > double< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) {< / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   sync_status_ = MUST_RELOAD;< / div >
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   }< / div >
< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   < / div >
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   < span class = "comment" > // Clear objective of all its terms (linear)< / span > < / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::ClearObjective() {< / div >
< div class = "line" > < a name = "l00355" > < / a > < span class = "lineno" > 355< / span >   InvalidateSolutionSynchronization();< / div >
< div class = "line" > < a name = "l00356" > < / a > < span class = "lineno" > 356< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & entry : solver_-> objective_-> coefficients_) {< / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > mpsolver_var_index = entry.first-> index();< / div >
< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   < span class = "comment" > // Variable may have not been extracted yet.< / span > < / div >
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   < span class = "keywordflow" > if< / span > (!variable_is_extracted(mpsolver_var_index)) {< / div >
< div class = "line" > < a name = "l00360" > < / a > < span class = "lineno" > 360< / span >   < a class = "code" href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > (MODEL_SYNCHRONIZED, sync_status_);< / 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 >   glp_set_obj_coef(lp_, MPSolverIndexToGlpkIndex(mpsolver_var_index), 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 = "comment" > // Constant term.< / span > < / div >
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   glp_set_obj_coef(lp_, 0, 0.0);< / div >
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   }< / div >
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   < / div >
< div class = "line" > < a name = "l00369" > < / a > < span class = "lineno" > 369< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::AddRowConstraint(MPConstraint* < span class = "keyword" > const< / span > < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > ) {< / div >
< div class = "line" > < a name = "l00370" > < / a > < span class = "lineno" > 370< / span >   sync_status_ = MUST_RELOAD;< / div >
< div class = "line" > < a name = "l00371" > < / a > < span class = "lineno" > 371< / span >   }< / div >
< div class = "line" > < a name = "l00372" > < / a > < span class = "lineno" > 372< / span >   < / div >
< div class = "line" > < a name = "l00373" > < / a > < span class = "lineno" > 373< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::AddVariable(MPVariable* < span class = "keyword" > const< / span > < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > ) {< / div >
< div class = "line" > < a name = "l00374" > < / a > < span class = "lineno" > 374< / span >   sync_status_ = MUST_RELOAD;< / div >
< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   }< / div >
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   < / div >
< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   < span class = "comment" > // Define new variables and add them to existing constraints.< / span > < / div >
< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > 378< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::ExtractNewVariables() {< / div >
< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   < span class = "keywordtype" > int< / span > total_num_vars = solver_-> variables_.size();< / div >
< div class = "line" > < a name = "l00380" > < / a > < span class = "lineno" > 380< / span >   < span class = "keywordflow" > if< / span > (total_num_vars > last_variable_index_) {< / div >
< div class = "line" > < a name = "l00381" > < / a > < span class = "lineno" > 381< / span >   glp_add_cols(lp_, total_num_vars - last_variable_index_);< / div >
< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > j = last_variable_index_; j < solver_-> variables_.size(); ++j) {< / div >
< div class = "line" > < a name = "l00383" > < / a > < span class = "lineno" > 383< / span >   MPVariable* < span class = "keyword" > const< / span > < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > = solver_-> variables_[j];< / div >
< div class = "line" > < a name = "l00384" > < / a > < span class = "lineno" > 384< / span >   set_variable_as_extracted(j, < span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > -> name().empty()) {< / div >
< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > 386< / span >   glp_set_col_name(lp_, MPSolverIndexToGlpkIndex(j), < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > -> name().c_str());< / div >
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > 387< / span >   }< / div >
< div class = "line" > < a name = "l00388" > < / a > < span class = "lineno" > 388< / span >   SetVariableBounds(< span class = "comment" > /*mpsolver_var_index=*/< / span > j, < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > -> lb(), < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > -> ub());< / div >
< div class = "line" > < a name = "l00389" > < / a > < span class = "lineno" > 389< / span >   SetVariableInteger(< span class = "comment" > /*mpsolver_var_index=*/< / span > j, < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > -> integer());< / div >
< 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 >   < span class = "comment" > // The true objective coefficient will be set later in ExtractObjective.< / span > < / div >
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   < span class = "keywordtype" > double< / span > tmp_obj_coef = 0.0;< / div >
< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   glp_set_obj_coef(lp_, MPSolverIndexToGlpkIndex(j), tmp_obj_coef);< / div >
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   }< / div >
< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > 395< / span >   < span class = "comment" > // Add new variables to the existing constraints.< / span > < / div >
< div class = "line" > < a name = "l00396" > < / a > < span class = "lineno" > 396< / span >   ExtractOldConstraints();< / 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 >   }< / div >
< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   < / div >
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > 400< / span >   < span class = "comment" > // Extract again existing constraints if they contain new variables.< / span > < / div >
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::ExtractOldConstraints() {< / div >
< div class = "line" > < a name = "l00402" > < / a > < span class = "lineno" > 402< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > max_constraint_size =< / div >
< div class = "line" > < a name = "l00403" > < / a > < span class = "lineno" > 403< / span >   solver_-> ComputeMaxConstraintSize(0, last_constraint_index_);< / div >
< div class = "line" > < a name = "l00404" > < / a > < span class = "lineno" > 404< / span >   < span class = "comment" > // The first entry in the following arrays is dummy, to be< / span > < / div >
< div class = "line" > < a name = "l00405" > < / a > < span class = "lineno" > 405< / span >   < span class = "comment" > // consistent with glpk API.< / span > < / div >
< div class = "line" > < a name = "l00406" > < / a > < span class = "lineno" > 406< / span >   std::unique_ptr< int[]> indices(< span class = "keyword" > new< / span > < span class = "keywordtype" > int< / span > [max_constraint_size + 1]);< / div >
< div class = "line" > < a name = "l00407" > < / a > < span class = "lineno" > 407< / span >   std::unique_ptr< double[]> coefs(< span class = "keyword" > new< / span > < span class = "keywordtype" > double< / span > [max_constraint_size + 1]);< / div >
< div class = "line" > < a name = "l00408" > < / a > < span class = "lineno" > 408< / span >   < / div >
< div class = "line" > < a name = "l00409" > < / a > < span class = "lineno" > 409< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < last_constraint_index_; ++i) {< / div >
< div class = "line" > < a name = "l00410" > < / a > < span class = "lineno" > 410< / span >   MPConstraint* < span class = "keyword" > const< / span > < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > = solver_-> constraints_[i];< / div >
< div class = "line" > < a name = "l00411" > < / a > < span class = "lineno" > 411< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (constraint_is_extracted(i));< / div >
< div class = "line" > < a name = "l00412" > < / a > < span class = "lineno" > 412< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > size = < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > -> coefficients_.size();< / div >
< div class = "line" > < a name = "l00413" > < / a > < span class = "lineno" > 413< / span >   < span class = "keywordflow" > if< / span > (size == 0) {< / div >
< div class = "line" > < a name = "l00414" > < / a > < span class = "lineno" > 414< / span >   < span class = "keywordflow" > continue< / 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" > // Update the constraint' s coefficients if it contains new variables.< / span > < / div >
< div class = "line" > < a name = "l00417" > < / a > < span class = "lineno" > 417< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > -> ContainsNewVariables()) {< / div >
< div class = "line" > < a name = "l00418" > < / a > < span class = "lineno" > 418< / span >   ExtractOneConstraint(< a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > , indices.get(), coefs.get());< / div >
< div class = "line" > < a name = "l00419" > < / a > < span class = "lineno" > 419< / span >   }< / div >
< div class = "line" > < a name = "l00420" > < / a > < span class = "lineno" > 420< / span >   }< / div >
< div class = "line" > < a name = "l00421" > < / a > < span class = "lineno" > 421< / span >   }< / div >
< div class = "line" > < a name = "l00422" > < / a > < span class = "lineno" > 422< / span >   < / div >
< div class = "line" > < a name = "l00423" > < / a > < span class = "lineno" > 423< / span >   < span class = "comment" > // Extract one constraint. Arrays indices and coefs must be< / span > < / div >
< div class = "line" > < a name = "l00424" > < / a > < span class = "lineno" > 424< / span >   < span class = "comment" > // preallocated to have enough space to contain the constraint' s< / span > < / div >
< div class = "line" > < a name = "l00425" > < / a > < span class = "lineno" > 425< / span >   < span class = "comment" > // coefficients.< / span > < / div >
< div class = "line" > < a name = "l00426" > < / a > < span class = "lineno" > 426< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::ExtractOneConstraint(MPConstraint* < span class = "keyword" > const< / span > constraint,< / div >
< div class = "line" > < a name = "l00427" > < / a > < span class = "lineno" > 427< / span >   < span class = "keywordtype" > int< / span > * < span class = "keyword" > const< / span > indices,< / div >
< div class = "line" > < a name = "l00428" > < / a > < span class = "lineno" > 428< / span >   < span class = "keywordtype" > double< / span > * < span class = "keyword" > const< / span > coefs) {< / div >
< div class = "line" > < a name = "l00429" > < / a > < span class = "lineno" > 429< / span >   < span class = "comment" > // GLPK convention is to start indexing at 1.< / span > < / div >
< div class = "line" > < a name = "l00430" > < / a > < span class = "lineno" > 430< / span >   < span class = "keywordtype" > int< / span > k = 1;< / div >
< div class = "line" > < a name = "l00431" > < / a > < span class = "lineno" > 431< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & entry : constraint-> coefficients_) {< / div >
< div class = "line" > < a name = "l00432" > < / a > < span class = "lineno" > 432< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (variable_is_extracted(entry.first-> index()));< / div >
< div class = "line" > < a name = "l00433" > < / a > < span class = "lineno" > 433< / span >   indices[k] = MPSolverIndexToGlpkIndex(entry.first-> index());< / div >
< div class = "line" > < a name = "l00434" > < / a > < span class = "lineno" > 434< / span >   coefs[k] = entry.second;< / div >
< div class = "line" > < a name = "l00435" > < / a > < span class = "lineno" > 435< / span >   ++k;< / 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 >   glp_set_mat_row(lp_, MPSolverIndexToGlpkIndex(constraint-> index()), k - 1,< / div >
< div class = "line" > < a name = "l00438" > < / a > < span class = "lineno" > 438< / span >   indices, coefs);< / div >
< div class = "line" > < a name = "l00439" > < / a > < span class = "lineno" > 439< / span >   }< / div >
< div class = "line" > < a name = "l00440" > < / a > < span class = "lineno" > 440< / span >   < / div >
< div class = "line" > < a name = "l00441" > < / a > < span class = "lineno" > 441< / span >   < span class = "comment" > // Define new constraints on old and new variables.< / span > < / div >
< div class = "line" > < a name = "l00442" > < / a > < span class = "lineno" > 442< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::ExtractNewConstraints() {< / div >
< div class = "line" > < a name = "l00443" > < / a > < span class = "lineno" > 443< / span >   < span class = "keywordtype" > int< / span > total_num_rows = solver_-> constraints_.size();< / div >
< div class = "line" > < a name = "l00444" > < / a > < span class = "lineno" > 444< / span >   < span class = "keywordflow" > if< / span > (last_constraint_index_ < total_num_rows) {< / div >
< div class = "line" > < a name = "l00445" > < / a > < span class = "lineno" > 445< / span >   < span class = "comment" > // Define new constraints< / span > < / div >
< div class = "line" > < a name = "l00446" > < / a > < span class = "lineno" > 446< / span >   glp_add_rows(lp_, total_num_rows - last_constraint_index_);< / div >
< div class = "line" > < a name = "l00447" > < / a > < span class = "lineno" > 447< / span >   < span class = "keywordtype" > int< / span > num_coefs = 0;< / div >
< div class = "line" > < a name = "l00448" > < / a > < span class = "lineno" > 448< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = last_constraint_index_; i < total_num_rows; ++i) {< / div >
< div class = "line" > < a name = "l00449" > < / a > < span class = "lineno" > 449< / span >   MPConstraint* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > = solver_-> constraints_[i];< / div >
< div class = "line" > < a name = "l00450" > < / a > < span class = "lineno" > 450< / span >   set_constraint_as_extracted(i, < span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00451" > < / a > < span class = "lineno" > 451< / span >   < span class = "keywordflow" > if< / span > (< a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > -> name().empty()) {< / div >
< div class = "line" > < a name = "l00452" > < / a > < span class = "lineno" > 452< / span >   glp_set_row_name(lp_, MPSolverIndexToGlpkIndex(i),< / div >
< div class = "line" > < a name = "l00453" > < / a > < span class = "lineno" > 453< / span >   absl::StrFormat(< span class = "stringliteral" > " ct_%i" < / span > , i).c_str());< / div >
< div class = "line" > < a name = "l00454" > < / a > < span class = "lineno" > 454< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00455" > < / a > < span class = "lineno" > 455< / span >   glp_set_row_name(lp_, MPSolverIndexToGlpkIndex(i), < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > -> name().c_str());< / div >
< div class = "line" > < a name = "l00456" > < / a > < span class = "lineno" > 456< / span >   }< / div >
< div class = "line" > < a name = "l00457" > < / a > < span class = "lineno" > 457< / span >   < span class = "comment" > // All constraints are set to be of the type < = limit_ .< / span > < / div >
< div class = "line" > < a name = "l00458" > < / a > < span class = "lineno" > 458< / span >   SetConstraintBounds(< span class = "comment" > /*mpsolver_constraint_index=*/< / span > i, < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > -> lb(), < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > -> ub());< / div >
< div class = "line" > < a name = "l00459" > < / a > < span class = "lineno" > 459< / span >   num_coefs += < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > -> coefficients_.size();< / 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 >   < / div >
< div class = "line" > < a name = "l00462" > < / a > < span class = "lineno" > 462< / span >   < span class = "comment" > // Fill new constraints with coefficients< / span > < / div >
< div class = "line" > < a name = "l00463" > < / a > < span class = "lineno" > 463< / span >   < span class = "keywordflow" > if< / span > (last_variable_index_ == 0 & & last_constraint_index_ == 0) {< / div >
< div class = "line" > < a name = "l00464" > < / a > < span class = "lineno" > 464< / span >   < span class = "comment" > // Faster extraction when nothing has been extracted yet: build< / span > < / div >
< div class = "line" > < a name = "l00465" > < / a > < span class = "lineno" > 465< / span >   < span class = "comment" > // and load whole matrix at once instead of constructing rows< / span > < / div >
< div class = "line" > < a name = "l00466" > < / a > < span class = "lineno" > 466< / span >   < span class = "comment" > // separately.< / span > < / div >
< div class = "line" > < a name = "l00467" > < / a > < span class = "lineno" > 467< / span >   < / div >
< div class = "line" > < a name = "l00468" > < / a > < span class = "lineno" > 468< / span >   < span class = "comment" > // The first entry in the following arrays is dummy, to be< / span > < / div >
< div class = "line" > < a name = "l00469" > < / a > < span class = "lineno" > 469< / span >   < span class = "comment" > // consistent with glpk API.< / span > < / div >
< div class = "line" > < a name = "l00470" > < / a > < span class = "lineno" > 470< / span >   std::unique_ptr< int[]> variable_indices(< span class = "keyword" > new< / span > < span class = "keywordtype" > int< / span > [num_coefs + 1]);< / div >
< div class = "line" > < a name = "l00471" > < / a > < span class = "lineno" > 471< / span >   std::unique_ptr< int[]> constraint_indices(< span class = "keyword" > new< / span > < span class = "keywordtype" > int< / span > [num_coefs + 1]);< / div >
< div class = "line" > < a name = "l00472" > < / a > < span class = "lineno" > 472< / span >   std::unique_ptr< double[]> coefs(< span class = "keyword" > new< / span > < span class = "keywordtype" > double< / span > [num_coefs + 1]);< / div >
< div class = "line" > < a name = "l00473" > < / a > < span class = "lineno" > 473< / span >   < span class = "keywordtype" > int< / span > k = 1;< / div >
< div class = "line" > < a name = "l00474" > < / a > < span class = "lineno" > 474< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < solver_-> constraints_.size(); ++i) {< / div >
< div class = "line" > < a name = "l00475" > < / a > < span class = "lineno" > 475< / span >   MPConstraint* < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > = solver_-> constraints_[i];< / div >
< div class = "line" > < a name = "l00476" > < / a > < span class = "lineno" > 476< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & entry : < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > -> coefficients_) {< / div >
< div class = "line" > < a name = "l00477" > < / a > < span class = "lineno" > 477< / span >   < a class = "code" href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > (variable_is_extracted(entry.first-> index()));< / div >
< div class = "line" > < a name = "l00478" > < / a > < span class = "lineno" > 478< / span >   constraint_indices[k] = MPSolverIndexToGlpkIndex(< a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > -> index());< / div >
< div class = "line" > < a name = "l00479" > < / a > < span class = "lineno" > 479< / span >   variable_indices[k] = MPSolverIndexToGlpkIndex(entry.first-> index());< / div >
< div class = "line" > < a name = "l00480" > < / a > < span class = "lineno" > 480< / span >   coefs[k] = entry.second;< / div >
< div class = "line" > < a name = "l00481" > < / a > < span class = "lineno" > 481< / span >   ++k;< / div >
< div class = "line" > < a name = "l00482" > < / a > < span class = "lineno" > 482< / span >   }< / div >
< div class = "line" > < a name = "l00483" > < / a > < span class = "lineno" > 483< / span >   }< / div >
< div class = "line" > < a name = "l00484" > < / a > < span class = "lineno" > 484< / span >   < a class = "code" href = "base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b" > CHECK_EQ< / a > (num_coefs + 1, k);< / div >
< div class = "line" > < a name = "l00485" > < / a > < span class = "lineno" > 485< / span >   glp_load_matrix(lp_, num_coefs, constraint_indices.get(),< / div >
< div class = "line" > < a name = "l00486" > < / a > < span class = "lineno" > 486< / span >   variable_indices.get(), coefs.get());< / div >
< div class = "line" > < a name = "l00487" > < / a > < span class = "lineno" > 487< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00488" > < / a > < span class = "lineno" > 488< / span >   < span class = "comment" > // Build each new row separately.< / span > < / div >
< div class = "line" > < a name = "l00489" > < / a > < span class = "lineno" > 489< / span >   < span class = "keywordtype" > int< / span > max_constraint_size = solver_-> ComputeMaxConstraintSize(< / div >
< div class = "line" > < a name = "l00490" > < / a > < span class = "lineno" > 490< / span >   last_constraint_index_, total_num_rows);< / div >
< div class = "line" > < a name = "l00491" > < / a > < span class = "lineno" > 491< / span >   < span class = "comment" > // The first entry in the following arrays is dummy, to be< / span > < / div >
< div class = "line" > < a name = "l00492" > < / a > < span class = "lineno" > 492< / span >   < span class = "comment" > // consistent with glpk API.< / span > < / div >
< div class = "line" > < a name = "l00493" > < / a > < span class = "lineno" > 493< / span >   std::unique_ptr< int[]> indices(< span class = "keyword" > new< / span > < span class = "keywordtype" > int< / span > [max_constraint_size + 1]);< / div >
< div class = "line" > < a name = "l00494" > < / a > < span class = "lineno" > 494< / span >   std::unique_ptr< double[]> coefs(< span class = "keyword" > new< / span > < span class = "keywordtype" > double< / span > [max_constraint_size + 1]);< / div >
< div class = "line" > < a name = "l00495" > < / a > < span class = "lineno" > 495< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = last_constraint_index_; i < total_num_rows; i++) {< / div >
< div class = "line" > < a name = "l00496" > < / a > < span class = "lineno" > 496< / span >   ExtractOneConstraint(solver_-> constraints_[i], indices.get(),< / div >
< div class = "line" > < a name = "l00497" > < / a > < span class = "lineno" > 497< / span >   coefs.get());< / 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 >   }< / div >
< div class = "line" > < a name = "l00500" > < / a > < span class = "lineno" > 500< / span >   }< / div >
< div class = "line" > < a name = "l00501" > < / a > < span class = "lineno" > 501< / span >   }< / div >
< div class = "line" > < a name = "l00502" > < / a > < span class = "lineno" > 502< / span >   < / div >
< div class = "line" > < a name = "l00503" > < / a > < span class = "lineno" > 503< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::ExtractObjective() {< / div >
< div class = "line" > < a name = "l00504" > < / a > < span class = "lineno" > 504< / span >   < span class = "comment" > // Linear objective: set objective coefficients for all variables< / span > < / div >
< div class = "line" > < a name = "l00505" > < / a > < span class = "lineno" > 505< / span >   < span class = "comment" > // (some might have been modified).< / span > < / div >
< div class = "line" > < a name = "l00506" > < / a > < span class = "lineno" > 506< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & entry : solver_-> objective_-> coefficients_) {< / div >
< div class = "line" > < a name = "l00507" > < / a > < span class = "lineno" > 507< / span >   glp_set_obj_coef(lp_, MPSolverIndexToGlpkIndex(entry.first-> index()),< / div >
< div class = "line" > < a name = "l00508" > < / a > < span class = "lineno" > 508< / span >   entry.second);< / 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 >   < span class = "comment" > // Constant term.< / span > < / div >
< div class = "line" > < a name = "l00511" > < / a > < span class = "lineno" > 511< / span >   glp_set_obj_coef(lp_, 0, solver_-> Objective().offset());< / div >
< div class = "line" > < a name = "l00512" > < / a > < span class = "lineno" > 512< / span >   }< / div >
< div class = "line" > < a name = "l00513" > < / a > < span class = "lineno" > 513< / span >   < / div >
< div class = "line" > < a name = "l00514" > < / a > < span class = "lineno" > 514< / span >   < span class = "comment" > // Solve the problem using the parameter values specified.< / span > < / div >
< div class = "line" > < a name = "l00515" > < / a > < span class = "lineno" > 515< / span >   MPSolver::ResultStatus < a class = "code" href = "namespaceoperations__research_1_1sat.html#af904018d9a1c9983624b1ce0331f2bf5" > GLPKInterface::Solve< / a > (< span class = "keyword" > const< / span > MPSolverParameters& param) {< / div >
< div class = "line" > < a name = "l00516" > < / a > < span class = "lineno" > 516< / span >   < a class = "code" href = "class_wall_timer.html" > WallTimer< / a > timer;< / div >
< div class = "line" > < a name = "l00517" > < / a > < span class = "lineno" > 517< / span >   timer.< a class = "code" href = "class_wall_timer.html#a07aaf1227e4d645f15e0a964f54ef291" > Start< / a > ();< / div >
< div class = "line" > < a name = "l00518" > < / a > < span class = "lineno" > 518< / span >   < / div >
< div class = "line" > < a name = "l00519" > < / a > < span class = "lineno" > 519< / span >   < span class = "comment" > // Note that GLPK provides incrementality for LP but not for MIP.< / span > < / div >
< div class = "line" > < a name = "l00520" > < / a > < span class = "lineno" > 520< / span >   < span class = "keywordflow" > if< / span > (param.GetIntegerParam(MPSolverParameters::INCREMENTALITY) ==< / div >
< div class = "line" > < a name = "l00521" > < / a > < span class = "lineno" > 521< / span >   MPSolverParameters::INCREMENTALITY_OFF) {< / div >
< div class = "line" > < a name = "l00522" > < / a > < span class = "lineno" > 522< / span >   Reset();< / div >
< div class = "line" > < a name = "l00523" > < / a > < span class = "lineno" > 523< / span >   }< / div >
< div class = "line" > < a name = "l00524" > < / a > < span class = "lineno" > 524< / span >   < / div >
< div class = "line" > < a name = "l00525" > < / a > < span class = "lineno" > 525< / span >   < span class = "comment" > // Set log level.< / span > < / div >
< div class = "line" > < a name = "l00526" > < / a > < span class = "lineno" > 526< / span >   < span class = "keywordflow" > if< / span > (quiet_) {< / div >
< div class = "line" > < a name = "l00527" > < / a > < span class = "lineno" > 527< / span >   glp_term_out(GLP_OFF);< / div >
< div class = "line" > < a name = "l00528" > < / a > < span class = "lineno" > 528< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00529" > < / a > < span class = "lineno" > 529< / span >   glp_term_out(GLP_ON);< / 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 >   ExtractModel();< / div >
< div class = "line" > < a name = "l00533" > < / a > < span class = "lineno" > 533< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < absl::StrFormat(< span class = "stringliteral" > " Model built in %.3f seconds." < / span > , timer.< a class = "code" href = "class_wall_timer.html#aec56fe080959ecebec3feaed9dafde84" > Get< / a > ());< / div >
< div class = "line" > < a name = "l00534" > < / a > < span class = "lineno" > 534< / span >   < / div >
< div class = "line" > < a name = "l00535" > < / a > < span class = "lineno" > 535< / span >   < span class = "comment" > // Configure parameters at every solve, even when the model has not< / span > < / div >
< div class = "line" > < a name = "l00536" > < / a > < span class = "lineno" > 536< / span >   < span class = "comment" > // been changed, in case some of the parameters such as the time< / span > < / div >
< div class = "line" > < a name = "l00537" > < / a > < span class = "lineno" > 537< / span >   < span class = "comment" > // limit have been changed since the last solve.< / span > < / div >
< div class = "line" > < a name = "l00538" > < / a > < span class = "lineno" > 538< / span >   ConfigureGLPKParameters(param);< / 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" > // Solve< / span > < / div >
< div class = "line" > < a name = "l00541" > < / a > < span class = "lineno" > 541< / span >   timer.< a class = "code" href = "class_wall_timer.html#a6bdbb9a2345c126ae0d72b1e2a9a21d5" > Restart< / a > ();< / div >
< div class = "line" > < a name = "l00542" > < / a > < span class = "lineno" > 542< / span >   < span class = "keywordtype" > int< / span > solver_status = glp_simplex(lp_, & lp_param_);< / div >
< div class = "line" > < a name = "l00543" > < / a > < span class = "lineno" > 543< / span >   < span class = "keywordflow" > if< / span > (mip_) {< / div >
< div class = "line" > < a name = "l00544" > < / a > < span class = "lineno" > 544< / span >   < span class = "comment" > // glp_intopt requires to solve the root LP separately.< / span > < / div >
< div class = "line" > < a name = "l00545" > < / a > < span class = "lineno" > 545< / span >   < span class = "comment" > // If the root LP was solved successfully, solve the MIP.< / span > < / div >
< div class = "line" > < a name = "l00546" > < / a > < span class = "lineno" > 546< / span >   < span class = "keywordflow" > if< / span > (solver_status == 0) {< / div >
< div class = "line" > < a name = "l00547" > < / a > < span class = "lineno" > 547< / span >   solver_status = glp_intopt(lp_, & mip_param_);< / div >
< div class = "line" > < a name = "l00548" > < / a > < span class = "lineno" > 548< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00549" > < / a > < span class = "lineno" > 549< / span >   < span class = "comment" > // Something abnormal occurred during the root LP solve. It is< / span > < / div >
< div class = "line" > < a name = "l00550" > < / a > < span class = "lineno" > 550< / span >   < span class = "comment" > // highly unlikely that an integer feasible solution is< / span > < / div >
< div class = "line" > < a name = "l00551" > < / a > < span class = "lineno" > 551< / span >   < span class = "comment" > // available at this point, so we don' t put any effort in trying< / span > < / div >
< div class = "line" > < a name = "l00552" > < / a > < span class = "lineno" > 552< / span >   < span class = "comment" > // to recover it.< / span > < / div >
< div class = "line" > < a name = "l00553" > < / a > < span class = "lineno" > 553< / span >   result_status_ = MPSolver::ABNORMAL;< / div >
< div class = "line" > < a name = "l00554" > < / a > < span class = "lineno" > 554< / span >   < span class = "keywordflow" > if< / span > (solver_status == GLP_ETMLIM) {< / div >
< div class = "line" > < a name = "l00555" > < / a > < span class = "lineno" > 555< / span >   result_status_ = MPSolver::NOT_SOLVED;< / 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 >   sync_status_ = SOLUTION_SYNCHRONIZED;< / div >
< div class = "line" > < a name = "l00558" > < / a > < span class = "lineno" > 558< / span >   < span class = "keywordflow" > return< / span > result_status_;< / div >
< div class = "line" > < a name = "l00559" > < / a > < span class = "lineno" > 559< / span >   }< / div >
< div class = "line" > < a name = "l00560" > < / a > < span class = "lineno" > 560< / span >   }< / div >
< div class = "line" > < a name = "l00561" > < / a > < span class = "lineno" > 561< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < absl::StrFormat(< span class = "stringliteral" > " GLPK Status: %i (time spent: %.3f seconds)." < / span > ,< / div >
< div class = "line" > < a name = "l00562" > < / a > < span class = "lineno" > 562< / span >   solver_status, timer.< a class = "code" href = "class_wall_timer.html#aec56fe080959ecebec3feaed9dafde84" > Get< / a > ());< / div >
< div class = "line" > < a name = "l00563" > < / a > < span class = "lineno" > 563< / span >   < / div >
< div class = "line" > < a name = "l00564" > < / a > < span class = "lineno" > 564< / span >   < span class = "comment" > // Get the results.< / span > < / div >
< div class = "line" > < a name = "l00565" > < / a > < span class = "lineno" > 565< / span >   < span class = "keywordflow" > if< / span > (mip_) {< / div >
< div class = "line" > < a name = "l00566" > < / a > < span class = "lineno" > 566< / span >   objective_value_ = glp_mip_obj_val(lp_);< / div >
< div class = "line" > < a name = "l00567" > < / a > < span class = "lineno" > 567< / span >   best_objective_bound_ = mip_callback_info_-> best_objective_bound_;< / div >
< div class = "line" > < a name = "l00568" > < / a > < span class = "lineno" > 568< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00569" > < / a > < span class = "lineno" > 569< / span >   objective_value_ = glp_get_obj_val(lp_);< / div >
< div class = "line" > < a name = "l00570" > < / a > < span class = "lineno" > 570< / span >   }< / div >
< div class = "line" > < a name = "l00571" > < / a > < span class = "lineno" > 571< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " objective=" < / span > < < objective_value_< / div >
< div class = "line" > < a name = "l00572" > < / a > < span class = "lineno" > 572< / span >   < < < span class = "stringliteral" > " , bound=" < / span > < < best_objective_bound_;< / div >
< div class = "line" > < a name = "l00573" > < / a > < span class = "lineno" > 573< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < solver_-> variables_.size(); ++i) {< / div >
< div class = "line" > < a name = "l00574" > < / a > < span class = "lineno" > 574< / span >   MPVariable* < span class = "keyword" > const< / span > < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > = solver_-> variables_[i];< / div >
< div class = "line" > < a name = "l00575" > < / a > < span class = "lineno" > 575< / span >   < span class = "keywordtype" > double< / span > val;< / div >
< div class = "line" > < a name = "l00576" > < / a > < span class = "lineno" > 576< / span >   < span class = "keywordflow" > if< / span > (mip_) {< / div >
< div class = "line" > < a name = "l00577" > < / a > < span class = "lineno" > 577< / span >   val = glp_mip_col_val(lp_, MPSolverIndexToGlpkIndex(i));< / div >
< div class = "line" > < a name = "l00578" > < / a > < span class = "lineno" > 578< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00579" > < / a > < span class = "lineno" > 579< / span >   val = glp_get_col_prim(lp_, MPSolverIndexToGlpkIndex(i));< / div >
< div class = "line" > < a name = "l00580" > < / a > < span class = "lineno" > 580< / span >   }< / div >
< div class = "line" > < a name = "l00581" > < / a > < span class = "lineno" > 581< / span >   < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > -> set_solution_value(val);< / div >
< div class = "line" > < a name = "l00582" > < / a > < span class = "lineno" > 582< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (3) < < < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > -> name() < < < span class = "stringliteral" > " : value =" < / span > < < val;< / div >
< div class = "line" > < a name = "l00583" > < / a > < span class = "lineno" > 583< / span >   < span class = "keywordflow" > if< / span > (!mip_) {< / div >
< div class = "line" > < a name = "l00584" > < / a > < span class = "lineno" > 584< / span >   < span class = "keywordtype" > double< / span > reduced_cost;< / div >
< div class = "line" > < a name = "l00585" > < / a > < span class = "lineno" > 585< / span >   reduced_cost = glp_get_col_dual(lp_, MPSolverIndexToGlpkIndex(i));< / div >
< div class = "line" > < a name = "l00586" > < / a > < span class = "lineno" > 586< / span >   < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > -> set_reduced_cost(reduced_cost);< / div >
< div class = "line" > < a name = "l00587" > < / a > < span class = "lineno" > 587< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (4) < < < a class = "code" href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > -> name() < < < span class = "stringliteral" > " : reduced cost = " < / span > < < reduced_cost;< / 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 >   }< / div >
< div class = "line" > < a name = "l00590" > < / a > < span class = "lineno" > 590< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < solver_-> constraints_.size(); ++i) {< / div >
< div class = "line" > < a name = "l00591" > < / a > < span class = "lineno" > 591< / span >   MPConstraint* < span class = "keyword" > const< / span > < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > = solver_-> constraints_[i];< / div >
< div class = "line" > < a name = "l00592" > < / a > < span class = "lineno" > 592< / span >   < span class = "keywordflow" > if< / span > (!mip_) {< / div >
< div class = "line" > < a name = "l00593" > < / a > < span class = "lineno" > 593< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > dual_value =< / div >
< div class = "line" > < a name = "l00594" > < / a > < span class = "lineno" > 594< / span >   glp_get_row_dual(lp_, MPSolverIndexToGlpkIndex(i));< / div >
< div class = "line" > < a name = "l00595" > < / a > < span class = "lineno" > 595< / span >   < a class = "code" href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > -> set_dual_value(dual_value);< / div >
< div class = "line" > < a name = "l00596" > < / a > < span class = "lineno" > 596< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (4) < < < span class = "stringliteral" > " row " < / span > < < MPSolverIndexToGlpkIndex(i)< / div >
< div class = "line" > < a name = "l00597" > < / a > < span class = "lineno" > 597< / span >   < < < span class = "stringliteral" > " : dual value = " < / span > < < dual_value;< / div >
< div class = "line" > < a name = "l00598" > < / a > < span class = "lineno" > 598< / span >   }< / div >
< div class = "line" > < a name = "l00599" > < / a > < span class = "lineno" > 599< / span >   }< / 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" > // Check the status: optimal, infeasible, etc.< / span > < / div >
< div class = "line" > < a name = "l00602" > < / a > < span class = "lineno" > 602< / span >   < span class = "keywordflow" > if< / span > (mip_) {< / div >
< div class = "line" > < a name = "l00603" > < / a > < span class = "lineno" > 603< / span >   < span class = "keywordtype" > int< / span > tmp_status = glp_mip_status(lp_);< / div >
< div class = "line" > < a name = "l00604" > < / a > < span class = "lineno" > 604< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " GLPK result status: " < / span > < < tmp_status;< / div >
< div class = "line" > < a name = "l00605" > < / a > < span class = "lineno" > 605< / span >   < span class = "keywordflow" > if< / span > (tmp_status == GLP_OPT) {< / div >
< div class = "line" > < a name = "l00606" > < / a > < span class = "lineno" > 606< / span >   result_status_ = < a class = "code" href = "namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2579881e7c83261bc21bafb5a5c92cad" > MPSolver::OPTIMAL< / a > ;< / div >
< div class = "line" > < a name = "l00607" > < / a > < span class = "lineno" > 607< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (tmp_status == GLP_FEAS) {< / div >
< div class = "line" > < a name = "l00608" > < / a > < span class = "lineno" > 608< / span >   result_status_ = < a class = "code" href = "namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a03f919221217f95d21a593a7120165e1" > MPSolver::FEASIBLE< / a > ;< / div >
< div class = "line" > < a name = "l00609" > < / a > < span class = "lineno" > 609< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (tmp_status == GLP_NOFEAS) {< / div >
< div class = "line" > < a name = "l00610" > < / a > < span class = "lineno" > 610< / span >   < span class = "comment" > // For infeasible problems, GLPK actually seems to return< / span > < / div >
< div class = "line" > < a name = "l00611" > < / a > < span class = "lineno" > 611< / span >   < span class = "comment" > // GLP_UNDEF. So this is never (?) reached. Return infeasible< / span > < / div >
< div class = "line" > < a name = "l00612" > < / a > < span class = "lineno" > 612< / span >   < span class = "comment" > // in case GLPK returns a correct status in future versions.< / span > < / div >
< div class = "line" > < a name = "l00613" > < / a > < span class = "lineno" > 613< / span >   result_status_ = < a class = "code" href = "namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2884fa43446c0cbc9c7a9b74d41d7483" > MPSolver::INFEASIBLE< / a > ;< / div >
< div class = "line" > < a name = "l00614" > < / a > < span class = "lineno" > 614< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (solver_status == GLP_ETMLIM) {< / div >
< div class = "line" > < a name = "l00615" > < / a > < span class = "lineno" > 615< / span >   result_status_ = MPSolver::NOT_SOLVED;< / div >
< div class = "line" > < a name = "l00616" > < / a > < span class = "lineno" > 616< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00617" > < / a > < span class = "lineno" > 617< / span >   result_status_ = MPSolver::ABNORMAL;< / div >
< div class = "line" > < a name = "l00618" > < / a > < span class = "lineno" > 618< / span >   < span class = "comment" > // GLPK does not have a status code for unbounded MIP models, so< / span > < / div >
< div class = "line" > < a name = "l00619" > < / a > < span class = "lineno" > 619< / span >   < span class = "comment" > // we return an abnormal status instead.< / span > < / div >
< div class = "line" > < a name = "l00620" > < / a > < span class = "lineno" > 620< / span >   }< / div >
< div class = "line" > < a name = "l00621" > < / a > < span class = "lineno" > 621< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00622" > < / a > < span class = "lineno" > 622< / span >   < span class = "keywordtype" > int< / span > tmp_status = glp_get_status(lp_);< / div >
< div class = "line" > < a name = "l00623" > < / a > < span class = "lineno" > 623< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " GLPK result status: " < / span > < < tmp_status;< / div >
< div class = "line" > < a name = "l00624" > < / a > < span class = "lineno" > 624< / span >   < span class = "keywordflow" > if< / span > (tmp_status == GLP_OPT) {< / div >
< div class = "line" > < a name = "l00625" > < / a > < span class = "lineno" > 625< / span >   result_status_ = < a class = "code" href = "namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2579881e7c83261bc21bafb5a5c92cad" > MPSolver::OPTIMAL< / a > ;< / div >
< div class = "line" > < a name = "l00626" > < / a > < span class = "lineno" > 626< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (tmp_status == GLP_FEAS) {< / div >
< div class = "line" > < a name = "l00627" > < / a > < span class = "lineno" > 627< / span >   result_status_ = < a class = "code" href = "namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a03f919221217f95d21a593a7120165e1" > MPSolver::FEASIBLE< / a > ;< / div >
< div class = "line" > < a name = "l00628" > < / a > < span class = "lineno" > 628< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (tmp_status == GLP_NOFEAS || tmp_status == GLP_INFEAS) {< / div >
< div class = "line" > < a name = "l00629" > < / a > < span class = "lineno" > 629< / span >   < span class = "comment" > // For infeasible problems, GLPK actually seems to return< / span > < / div >
< div class = "line" > < a name = "l00630" > < / a > < span class = "lineno" > 630< / span >   < span class = "comment" > // GLP_UNDEF. So this is never (?) reached. Return infeasible< / span > < / div >
< div class = "line" > < a name = "l00631" > < / a > < span class = "lineno" > 631< / span >   < span class = "comment" > // in case GLPK returns a correct status in future versions.< / span > < / div >
< div class = "line" > < a name = "l00632" > < / a > < span class = "lineno" > 632< / span >   result_status_ = < a class = "code" href = "namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2884fa43446c0cbc9c7a9b74d41d7483" > MPSolver::INFEASIBLE< / a > ;< / div >
< div class = "line" > < a name = "l00633" > < / a > < span class = "lineno" > 633< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (tmp_status == GLP_UNBND) {< / div >
< div class = "line" > < a name = "l00634" > < / a > < span class = "lineno" > 634< / span >   < span class = "comment" > // For unbounded problems, GLPK actually seems to return< / span > < / div >
< div class = "line" > < a name = "l00635" > < / a > < span class = "lineno" > 635< / span >   < span class = "comment" > // GLP_UNDEF. So this is never (?) reached. Return unbounded< / span > < / div >
< div class = "line" > < a name = "l00636" > < / a > < span class = "lineno" > 636< / span >   < span class = "comment" > // in case GLPK returns a correct status in future versions.< / span > < / div >
< div class = "line" > < a name = "l00637" > < / a > < span class = "lineno" > 637< / span >   result_status_ = MPSolver::UNBOUNDED;< / div >
< div class = "line" > < a name = "l00638" > < / a > < span class = "lineno" > 638< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (solver_status == GLP_ETMLIM) {< / div >
< div class = "line" > < a name = "l00639" > < / a > < span class = "lineno" > 639< / span >   result_status_ = MPSolver::NOT_SOLVED;< / div >
< div class = "line" > < a name = "l00640" > < / a > < span class = "lineno" > 640< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00641" > < / a > < span class = "lineno" > 641< / span >   result_status_ = MPSolver::ABNORMAL;< / div >
< div class = "line" > < a name = "l00642" > < / a > < span class = "lineno" > 642< / span >   }< / div >
< div class = "line" > < a name = "l00643" > < / a > < span class = "lineno" > 643< / span >   }< / div >
< div class = "line" > < a name = "l00644" > < / a > < span class = "lineno" > 644< / span >   < / div >
< div class = "line" > < a name = "l00645" > < / a > < span class = "lineno" > 645< / span >   sync_status_ = SOLUTION_SYNCHRONIZED;< / div >
< div class = "line" > < a name = "l00646" > < / a > < span class = "lineno" > 646< / span >   < / div >
< div class = "line" > < a name = "l00647" > < / a > < span class = "lineno" > 647< / span >   < span class = "keywordflow" > return< / span > result_status_;< / 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 >   < / div >
< div class = "line" > < a name = "l00650" > < / a > < span class = "lineno" > 650< / span >   MPSolver::BasisStatus GLPKInterface::TransformGLPKBasisStatus(< / div >
< div class = "line" > < a name = "l00651" > < / a > < span class = "lineno" > 651< / span >   < span class = "keywordtype" > int< / span > glpk_basis_status)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00652" > < / a > < span class = "lineno" > 652< / span >   < span class = "keywordflow" > switch< / span > (glpk_basis_status) {< / div >
< div class = "line" > < a name = "l00653" > < / a > < span class = "lineno" > 653< / span >   < span class = "keywordflow" > case< / span > GLP_BS:< / div >
< div class = "line" > < a name = "l00654" > < / a > < span class = "lineno" > 654< / span >   < span class = "keywordflow" > return< / span > MPSolver::BASIC;< / div >
< div class = "line" > < a name = "l00655" > < / a > < span class = "lineno" > 655< / span >   < span class = "keywordflow" > case< / span > GLP_NL:< / div >
< div class = "line" > < a name = "l00656" > < / a > < span class = "lineno" > 656< / span >   < span class = "keywordflow" > return< / span > MPSolver::AT_LOWER_BOUND;< / div >
< div class = "line" > < a name = "l00657" > < / a > < span class = "lineno" > 657< / span >   < span class = "keywordflow" > case< / span > GLP_NU:< / div >
< div class = "line" > < a name = "l00658" > < / a > < span class = "lineno" > 658< / span >   < span class = "keywordflow" > return< / span > MPSolver::AT_UPPER_BOUND;< / div >
< div class = "line" > < a name = "l00659" > < / a > < span class = "lineno" > 659< / span >   < span class = "keywordflow" > case< / span > GLP_NF:< / div >
< div class = "line" > < a name = "l00660" > < / a > < span class = "lineno" > 660< / span >   < span class = "keywordflow" > return< / span > MPSolver::FREE;< / div >
< div class = "line" > < a name = "l00661" > < / a > < span class = "lineno" > 661< / span >   < span class = "keywordflow" > case< / span > GLP_NS:< / div >
< div class = "line" > < a name = "l00662" > < / a > < span class = "lineno" > 662< / span >   < span class = "keywordflow" > return< / span > MPSolver::FIXED_VALUE;< / div >
< div class = "line" > < a name = "l00663" > < / a > < span class = "lineno" > 663< / span >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l00664" > < / a > < span class = "lineno" > 664< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda" > FATAL< / a > ) < < < span class = "stringliteral" > " Unknown GLPK basis status" < / span > ;< / div >
< div class = "line" > < a name = "l00665" > < / a > < span class = "lineno" > 665< / span >   < span class = "keywordflow" > return< / span > MPSolver::FREE;< / div >
< div class = "line" > < a name = "l00666" > < / a > < span class = "lineno" > 666< / span >   }< / div >
< 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 >
< div class = "line" > < a name = "l00669" > < / a > < span class = "lineno" > 669< / span >   < span class = "comment" > // ------ Query statistics on the solution and the solve ------< / span > < / div >
< div class = "line" > < a name = "l00670" > < / a > < span class = "lineno" > 670< / span >   < / div >
< div class = "line" > < a name = "l00671" > < / a > < span class = "lineno" > 671< / span >   int64_t GLPKInterface::iterations()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00672" > < / a > < span class = "lineno" > 672< / span >   < span class = "preprocessor" > #if GLP_MAJOR_VERSION == 4 & & GLP_MINOR_VERSION < 49< / span > < / div >
< div class = "line" > < a name = "l00673" > < / a > < span class = "lineno" > 673< / span >   < span class = "keywordflow" > if< / span > (!mip_ & & CheckSolutionIsSynchronized()) {< / div >
< div class = "line" > < a name = "l00674" > < / a > < span class = "lineno" > 674< / span >   < span class = "keywordflow" > return< / span > lpx_get_int_parm(lp_, LPX_K_ITCNT);< / div >
< div class = "line" > < a name = "l00675" > < / a > < span class = "lineno" > 675< / span >   }< / div >
< div class = "line" > < a name = "l00676" > < / a > < span class = "lineno" > 676< / span >   < span class = "preprocessor" > #elif GLP_MAJOR_VERSION == 4 & & GLP_MINOR_VERSION > = 53< / span > < / div >
< div class = "line" > < a name = "l00677" > < / a > < span class = "lineno" > 677< / span >   < span class = "keywordflow" > if< / span > (!mip_ & & CheckSolutionIsSynchronized()) {< / div >
< div class = "line" > < a name = "l00678" > < / a > < span class = "lineno" > 678< / span >   < span class = "keywordflow" > return< / span > glp_get_it_cnt(lp_);< / div >
< div class = "line" > < a name = "l00679" > < / a > < span class = "lineno" > 679< / span >   }< / div >
< div class = "line" > < a name = "l00680" > < / a > < span class = "lineno" > 680< / span >   < span class = "preprocessor" > #endif< / span > < / div >
< div class = "line" > < a name = "l00681" > < / a > < span class = "lineno" > 681< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7" > WARNING< / a > ) < < < span class = "stringliteral" > " Total number of iterations is not available" < / span > ;< / div >
< div class = "line" > < a name = "l00682" > < / a > < span class = "lineno" > 682< / span >   < span class = "keywordflow" > return< / span > kUnknownNumberOfIterations;< / div >
< div class = "line" > < a name = "l00683" > < / a > < span class = "lineno" > 683< / span >   }< / div >
< div class = "line" > < a name = "l00684" > < / a > < span class = "lineno" > 684< / span >   < / div >
< div class = "line" > < a name = "l00685" > < / a > < span class = "lineno" > 685< / span >   int64_t < a class = "code" href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > GLPKInterface::nodes< / a > ()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00686" > < / a > < span class = "lineno" > 686< / span >   < span class = "keywordflow" > if< / span > (mip_) {< / div >
< div class = "line" > < a name = "l00687" > < / a > < span class = "lineno" > 687< / span >   < span class = "keywordflow" > if< / span > (!CheckSolutionIsSynchronized()) < span class = "keywordflow" > return< / span > kUnknownNumberOfNodes;< / div >
< div class = "line" > < a name = "l00688" > < / a > < span class = "lineno" > 688< / span >   < span class = "keywordflow" > return< / span > mip_callback_info_-> num_all_nodes_;< / div >
< div class = "line" > < a name = "l00689" > < / a > < span class = "lineno" > 689< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00690" > < / a > < span class = "lineno" > 690< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (DFATAL) < < < span class = "stringliteral" > " Number of nodes only available for discrete problems" < / span > ;< / div >
< div class = "line" > < a name = "l00691" > < / a > < span class = "lineno" > 691< / span >   < span class = "keywordflow" > return< / span > kUnknownNumberOfNodes;< / div >
< div class = "line" > < a name = "l00692" > < / a > < span class = "lineno" > 692< / span >   }< / div >
< div class = "line" > < a name = "l00693" > < / a > < span class = "lineno" > 693< / span >   }< / div >
< div class = "line" > < a name = "l00694" > < / a > < span class = "lineno" > 694< / span >   < / div >
< div class = "line" > < a name = "l00695" > < / a > < span class = "lineno" > 695< / span >   MPSolver::BasisStatus GLPKInterface::row_status(< span class = "keywordtype" > int< / span > constraint_index)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00696" > < / a > < span class = "lineno" > 696< / span >   < a class = "code" href = "base_2logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295" > DCHECK_GE< / a > (constraint_index, 0);< / div >
< div class = "line" > < a name = "l00697" > < / a > < span class = "lineno" > 697< / span >   < a class = "code" href = "base_2logging_8h.html#ab62f5ed8f2d48e29802be0cbbcd1359a" > DCHECK_LT< / a > (constraint_index, last_constraint_index_);< / div >
< div class = "line" > < a name = "l00698" > < / a > < span class = "lineno" > 698< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > glpk_basis_status =< / div >
< div class = "line" > < a name = "l00699" > < / a > < span class = "lineno" > 699< / span >   glp_get_row_stat(lp_, MPSolverIndexToGlpkIndex(constraint_index));< / div >
< div class = "line" > < a name = "l00700" > < / a > < span class = "lineno" > 700< / span >   < span class = "keywordflow" > return< / span > TransformGLPKBasisStatus(glpk_basis_status);< / div >
< div class = "line" > < a name = "l00701" > < / a > < span class = "lineno" > 701< / span >   }< / div >
< div class = "line" > < a name = "l00702" > < / a > < span class = "lineno" > 702< / span >   < / div >
< div class = "line" > < a name = "l00703" > < / a > < span class = "lineno" > 703< / span >   MPSolver::BasisStatus GLPKInterface::column_status(< span class = "keywordtype" > int< / span > variable_index)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00704" > < / a > < span class = "lineno" > 704< / span >   < a class = "code" href = "base_2logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295" > DCHECK_GE< / a > (variable_index, 0);< / div >
< div class = "line" > < a name = "l00705" > < / a > < span class = "lineno" > 705< / span >   < a class = "code" href = "base_2logging_8h.html#ab62f5ed8f2d48e29802be0cbbcd1359a" > DCHECK_LT< / a > (variable_index, last_variable_index_);< / div >
< div class = "line" > < a name = "l00706" > < / a > < span class = "lineno" > 706< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > glpk_basis_status =< / div >
< div class = "line" > < a name = "l00707" > < / a > < span class = "lineno" > 707< / span >   glp_get_col_stat(lp_, MPSolverIndexToGlpkIndex(variable_index));< / div >
< div class = "line" > < a name = "l00708" > < / a > < span class = "lineno" > 708< / span >   < span class = "keywordflow" > return< / span > TransformGLPKBasisStatus(glpk_basis_status);< / 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 >   < / div >
< div class = "line" > < a name = "l00711" > < / a > < span class = "lineno" > 711< / span >   < span class = "keywordtype" > bool< / span > GLPKInterface::CheckSolutionExists()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00712" > < / a > < span class = "lineno" > 712< / span >   < span class = "keywordflow" > if< / span > (result_status_ == MPSolver::ABNORMAL) {< / div >
< div class = "line" > < a name = "l00713" > < / a > < span class = "lineno" > 713< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7" > WARNING< / a > ) < < < span class = "stringliteral" > " Ignoring ABNORMAL status from GLPK: This status may or may" < / span > < / div >
< div class = "line" > < a name = "l00714" > < / a > < span class = "lineno" > 714< / span >   < < < span class = "stringliteral" > " not indicate that a solution exists." < / span > ;< / div >
< div class = "line" > < a name = "l00715" > < / a > < span class = "lineno" > 715< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00716" > < / a > < span class = "lineno" > 716< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00717" > < / a > < span class = "lineno" > 717< / span >   < span class = "comment" > // Call default implementation< / span > < / div >
< div class = "line" > < a name = "l00718" > < / a > < span class = "lineno" > 718< / span >   < span class = "keywordflow" > return< / span > MPSolverInterface::CheckSolutionExists();< / div >
< div class = "line" > < a name = "l00719" > < / a > < span class = "lineno" > 719< / span >   }< / div >
< div class = "line" > < a name = "l00720" > < / a > < span class = "lineno" > 720< / span >   }< / div >
< div class = "line" > < a name = "l00721" > < / a > < span class = "lineno" > 721< / span >   < / div >
< div class = "line" > < a name = "l00722" > < / a > < span class = "lineno" > 722< / span >   < span class = "keywordtype" > double< / span > GLPKInterface::ComputeExactConditionNumber()< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00723" > < / a > < span class = "lineno" > 723< / span >   < span class = "keywordflow" > if< / span > (!IsContinuous()) {< / div >
< div class = "line" > < a name = "l00724" > < / a > < span class = "lineno" > 724< / span >   < span class = "comment" > // TODO(user): support MIP.< / span > < / div >
< div class = "line" > < a name = "l00725" > < / a > < span class = "lineno" > 725< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (DFATAL) < < < span class = "stringliteral" > " ComputeExactConditionNumber not implemented for" < / span > < / div >
< div class = "line" > < a name = "l00726" > < / a > < span class = "lineno" > 726< / span >   < < < span class = "stringliteral" > " GLPK_MIXED_INTEGER_PROGRAMMING" < / span > ;< / div >
< div class = "line" > < a name = "l00727" > < / a > < span class = "lineno" > 727< / span >   < span class = "keywordflow" > return< / span > 0.0;< / div >
< div class = "line" > < a name = "l00728" > < / a > < span class = "lineno" > 728< / span >   }< / div >
< div class = "line" > < a name = "l00729" > < / a > < span class = "lineno" > 729< / span >   < span class = "keywordflow" > if< / span > (!CheckSolutionIsSynchronized()) < span class = "keywordflow" > return< / span > 0.0;< / div >
< div class = "line" > < a name = "l00730" > < / a > < span class = "lineno" > 730< / span >   < span class = "comment" > // Simplex is the only LP algorithm supported in the wrapper for< / span > < / div >
< div class = "line" > < a name = "l00731" > < / a > < span class = "lineno" > 731< / span >   < span class = "comment" > // GLPK, so when a solution exists, a basis exists.< / span > < / div >
< div class = "line" > < a name = "l00732" > < / a > < span class = "lineno" > 732< / span >   CheckSolutionExists();< / div >
< div class = "line" > < a name = "l00733" > < / a > < span class = "lineno" > 733< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_rows = glp_get_num_rows(lp_);< / div >
< div class = "line" > < a name = "l00734" > < / a > < span class = "lineno" > 734< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_cols = glp_get_num_cols(lp_);< / div >
< div class = "line" > < a name = "l00735" > < / a > < span class = "lineno" > 735< / span >   < span class = "comment" > // GLPK indexes everything starting from 1 instead of 0.< / span > < / div >
< div class = "line" > < a name = "l00736" > < / a > < span class = "lineno" > 736< / span >   std::unique_ptr< double[]> row_scaling_factor(< span class = "keyword" > new< / span > < span class = "keywordtype" > double< / span > [num_rows + 1]);< / div >
< div class = "line" > < a name = "l00737" > < / a > < span class = "lineno" > 737< / span >   std::unique_ptr< double[]> column_scaling_factor(< span class = "keyword" > new< / span > < span class = "keywordtype" > double< / span > [num_cols + 1]);< / div >
< div class = "line" > < a name = "l00738" > < / a > < span class = "lineno" > 738< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = 1; < 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 = "l00739" > < / a > < span class = "lineno" > 739< / span >   row_scaling_factor[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = glp_get_rii(lp_, < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l00740" > < / a > < span class = "lineno" > 740< / span >   }< / div >
< div class = "line" > < a name = "l00741" > < / a > < span class = "lineno" > 741< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = 1; < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < = num_cols; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00742" > < / a > < span class = "lineno" > 742< / span >   column_scaling_factor[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ] = glp_get_sjj(lp_, < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00743" > < / a > < span class = "lineno" > 743< / span >   }< / div >
< div class = "line" > < a name = "l00744" > < / a > < span class = "lineno" > 744< / span >   < span class = "keywordflow" > return< / span > ComputeInverseScaledBasisL1Norm(num_rows, num_cols,< / div >
< div class = "line" > < a name = "l00745" > < / a > < span class = "lineno" > 745< / span >   row_scaling_factor.get(),< / div >
< div class = "line" > < a name = "l00746" > < / a > < span class = "lineno" > 746< / span >   column_scaling_factor.get()) *< / div >
< div class = "line" > < a name = "l00747" > < / a > < span class = "lineno" > 747< / span >   ComputeScaledBasisL1Norm(num_rows, num_cols, row_scaling_factor.get(),< / div >
< div class = "line" > < a name = "l00748" > < / a > < span class = "lineno" > 748< / span >   column_scaling_factor.get());< / div >
< div class = "line" > < a name = "l00749" > < / a > < span class = "lineno" > 749< / span >   }< / div >
< div class = "line" > < a name = "l00750" > < / a > < span class = "lineno" > 750< / span >   < / div >
< div class = "line" > < a name = "l00751" > < / a > < span class = "lineno" > 751< / span >   < span class = "keywordtype" > double< / span > GLPKInterface::ComputeScaledBasisL1Norm(< / div >
< div class = "line" > < a name = "l00752" > < / a > < span class = "lineno" > 752< / span >   < span class = "keywordtype" > int< / span > num_rows, < span class = "keywordtype" > int< / span > num_cols, < span class = "keywordtype" > double< / span > * row_scaling_factor,< / div >
< div class = "line" > < a name = "l00753" > < / a > < span class = "lineno" > 753< / span >   < span class = "keywordtype" > double< / span > * column_scaling_factor)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00754" > < / a > < span class = "lineno" > 754< / span >   < span class = "keywordtype" > double< / span > norm = 0.0;< / div >
< div class = "line" > < a name = "l00755" > < / a > < span class = "lineno" > 755< / span >   std::unique_ptr< double[]> values(< span class = "keyword" > new< / span > < span class = "keywordtype" > double< / span > [num_rows + 1]);< / div >
< div class = "line" > < a name = "l00756" > < / a > < span class = "lineno" > 756< / span >   std::unique_ptr< int[]> indices(< span class = "keyword" > new< / span > < span class = "keywordtype" > int< / span > [num_rows + 1]);< / div >
< div class = "line" > < a name = "l00757" > < / a > < span class = "lineno" > 757< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > = 1; < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < = num_cols; ++< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ) {< / div >
< div class = "line" > < a name = "l00758" > < / a > < span class = "lineno" > 758< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > glpk_basis_status = glp_get_col_stat(lp_, < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > );< / div >
< div class = "line" > < a name = "l00759" > < / a > < span class = "lineno" > 759< / span >   < span class = "comment" > // Take into account only basic columns.< / span > < / div >
< div class = "line" > < a name = "l00760" > < / a > < span class = "lineno" > 760< / span >   < span class = "keywordflow" > if< / span > (glpk_basis_status == GLP_BS) {< / div >
< div class = "line" > < a name = "l00761" > < / a > < span class = "lineno" > 761< / span >   < span class = "comment" > // Compute L1-norm of column ' col' : sum_row |a_row,col|.< / span > < / div >
< div class = "line" > < a name = "l00762" > < / a > < span class = "lineno" > 762< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > num_nz = glp_get_mat_col(lp_, < a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > , indices.get(), values.get());< / div >
< div class = "line" > < a name = "l00763" > < / a > < span class = "lineno" > 763< / span >   < span class = "keywordtype" > double< / span > column_norm = 0.0;< / div >
< div class = "line" > < a name = "l00764" > < / a > < span class = "lineno" > 764< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > k = 1; k < = num_nz; k++) {< / div >
< div class = "line" > < a name = "l00765" > < / a > < span class = "lineno" > 765< / span >   column_norm += fabs(values[k] * row_scaling_factor[indices[k]]);< / div >
< div class = "line" > < a name = "l00766" > < / a > < span class = "lineno" > 766< / span >   }< / div >
< div class = "line" > < a name = "l00767" > < / a > < span class = "lineno" > 767< / span >   column_norm *= fabs(column_scaling_factor[< a class = "code" href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > ]);< / div >
< div class = "line" > < a name = "l00768" > < / a > < span class = "lineno" > 768< / span >   < span class = "comment" > // Compute max_col column_norm< / span > < / div >
< div class = "line" > < a name = "l00769" > < / a > < span class = "lineno" > 769< / span >   norm = < a class = "code" href = "alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f" > std::max< / a > (norm, column_norm);< / div >
< div class = "line" > < a name = "l00770" > < / a > < span class = "lineno" > 770< / span >   }< / div >
< div class = "line" > < a name = "l00771" > < / a > < span class = "lineno" > 771< / span >   }< / div >
< div class = "line" > < a name = "l00772" > < / a > < span class = "lineno" > 772< / span >   < span class = "comment" > // Slack variables.< / span > < / div >
< div class = "line" > < a name = "l00773" > < / a > < span class = "lineno" > 773< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = 1; < 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 = "l00774" > < / a > < span class = "lineno" > 774< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > glpk_basis_status = glp_get_row_stat(lp_, < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l00775" > < / a > < span class = "lineno" > 775< / span >   < span class = "comment" > // Take into account only basic slack variables.< / span > < / div >
< div class = "line" > < a name = "l00776" > < / a > < span class = "lineno" > 776< / span >   < span class = "keywordflow" > if< / span > (glpk_basis_status == GLP_BS) {< / div >
< div class = "line" > < a name = "l00777" > < / a > < span class = "lineno" > 777< / span >   < span class = "comment" > // Only one non-zero coefficient: +/- 1.0 in the corresponding< / span > < / div >
< div class = "line" > < a name = "l00778" > < / a > < span class = "lineno" > 778< / span >   < span class = "comment" > // row. The row has a scaling coefficient but the slack variable< / span > < / div >
< div class = "line" > < a name = "l00779" > < / a > < span class = "lineno" > 779< / span >   < span class = "comment" > // is never scaled on top of that.< / span > < / div >
< div class = "line" > < a name = "l00780" > < / a > < span class = "lineno" > 780< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > double< / span > column_norm = fabs(row_scaling_factor[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]);< / div >
< div class = "line" > < a name = "l00781" > < / a > < span class = "lineno" > 781< / span >   < span class = "comment" > // Compute max_col column_norm< / span > < / div >
< div class = "line" > < a name = "l00782" > < / a > < span class = "lineno" > 782< / span >   norm = < a class = "code" href = "alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f" > std::max< / a > (norm, column_norm);< / div >
< div class = "line" > < a name = "l00783" > < / a > < span class = "lineno" > 783< / span >   }< / div >
< div class = "line" > < a name = "l00784" > < / a > < span class = "lineno" > 784< / span >   }< / div >
< div class = "line" > < a name = "l00785" > < / a > < span class = "lineno" > 785< / span >   < span class = "keywordflow" > return< / span > norm;< / div >
< div class = "line" > < a name = "l00786" > < / a > < span class = "lineno" > 786< / span >   }< / div >
< div class = "line" > < a name = "l00787" > < / a > < span class = "lineno" > 787< / span >   < / div >
< div class = "line" > < a name = "l00788" > < / a > < span class = "lineno" > 788< / span >   < span class = "keywordtype" > double< / span > GLPKInterface::ComputeInverseScaledBasisL1Norm(< / div >
< div class = "line" > < a name = "l00789" > < / a > < span class = "lineno" > 789< / span >   < span class = "keywordtype" > int< / span > num_rows, < span class = "keywordtype" > int< / span > num_cols, < span class = "keywordtype" > double< / span > * row_scaling_factor,< / div >
< div class = "line" > < a name = "l00790" > < / a > < span class = "lineno" > 790< / span >   < span class = "keywordtype" > double< / span > * column_scaling_factor)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00791" > < / a > < span class = "lineno" > 791< / span >   < span class = "comment" > // Compute the LU factorization if it doesn' t exist yet.< / span > < / div >
< div class = "line" > < a name = "l00792" > < / a > < span class = "lineno" > 792< / span >   < span class = "keywordflow" > if< / span > (!glp_bf_exists(lp_)) {< / div >
< div class = "line" > < a name = "l00793" > < / a > < span class = "lineno" > 793< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > factorize_status = glp_factorize(lp_);< / div >
< div class = "line" > < a name = "l00794" > < / a > < span class = "lineno" > 794< / span >   < span class = "keywordflow" > switch< / span > (factorize_status) {< / div >
< div class = "line" > < a name = "l00795" > < / a > < span class = "lineno" > 795< / span >   < span class = "keywordflow" > case< / span > GLP_EBADB: {< / div >
< div class = "line" > < a name = "l00796" > < / a > < span class = "lineno" > 796< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda" > FATAL< / a > ) < < < span class = "stringliteral" > " Not able to factorize: error GLP_EBADB." < / span > ;< / div >
< div class = "line" > < a name = "l00797" > < / a > < span class = "lineno" > 797< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00798" > < / a > < span class = "lineno" > 798< / span >   }< / div >
< div class = "line" > < a name = "l00799" > < / a > < span class = "lineno" > 799< / span >   < span class = "keywordflow" > case< / span > GLP_ESING: {< / div >
< div class = "line" > < a name = "l00800" > < / a > < span class = "lineno" > 800< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7" > WARNING< / a > )< / div >
< div class = "line" > < a name = "l00801" > < / a > < span class = "lineno" > 801< / span >   < < < span class = "stringliteral" > " Not able to factorize: " < / span > < / div >
< div class = "line" > < a name = "l00802" > < / a > < span class = "lineno" > 802< / span >   < < < span class = "stringliteral" > " the basis matrix is singular within the working precision." < / span > ;< / div >
< div class = "line" > < a name = "l00803" > < / a > < span class = "lineno" > 803< / span >   < span class = "keywordflow" > return< / span > MPSolver::infinity();< / div >
< div class = "line" > < a name = "l00804" > < / a > < span class = "lineno" > 804< / span >   }< / div >
< div class = "line" > < a name = "l00805" > < / a > < span class = "lineno" > 805< / span >   < span class = "keywordflow" > case< / span > GLP_ECOND: {< / div >
< div class = "line" > < a name = "l00806" > < / a > < span class = "lineno" > 806< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7" > WARNING< / a > )< / div >
< div class = "line" > < a name = "l00807" > < / a > < span class = "lineno" > 807< / span >   < < < span class = "stringliteral" > " Not able to factorize: the basis matrix is ill-conditioned." < / span > ;< / div >
< div class = "line" > < a name = "l00808" > < / a > < span class = "lineno" > 808< / span >   < span class = "keywordflow" > return< / span > MPSolver::infinity();< / div >
< div class = "line" > < a name = "l00809" > < / a > < span class = "lineno" > 809< / span >   }< / div >
< div class = "line" > < a name = "l00810" > < / a > < span class = "lineno" > 810< / span >   < span class = "keywordflow" > default< / span > :< / div >
< div class = "line" > < a name = "l00811" > < / a > < span class = "lineno" > 811< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00812" > < / a > < span class = "lineno" > 812< / span >   }< / div >
< div class = "line" > < a name = "l00813" > < / a > < span class = "lineno" > 813< / span >   }< / div >
< div class = "line" > < a name = "l00814" > < / a > < span class = "lineno" > 814< / span >   std::unique_ptr< double[]> right_hand_side(< span class = "keyword" > new< / span > < span class = "keywordtype" > double< / span > [num_rows + 1]);< / div >
< div class = "line" > < a name = "l00815" > < / a > < span class = "lineno" > 815< / span >   < span class = "keywordtype" > double< / span > norm = 0.0;< / div >
< div class = "line" > < a name = "l00816" > < / a > < span class = "lineno" > 816< / span >   < span class = "comment" > // Iteratively solve B x = e_k, where e_k is the kth unit vector.< / span > < / div >
< div class = "line" > < a name = "l00817" > < / a > < span class = "lineno" > 817< / span >   < span class = "comment" > // The result of this computation is the kth column of B^-1.< / span > < / div >
< div class = "line" > < a name = "l00818" > < / a > < span class = "lineno" > 818< / span >   < span class = "comment" > // glp_ftran works on original matrix. Scale input and result to< / span > < / div >
< div class = "line" > < a name = "l00819" > < / a > < span class = "lineno" > 819< / span >   < span class = "comment" > // obtain the norm of the kth column in the inverse scaled< / span > < / div >
< div class = "line" > < a name = "l00820" > < / a > < span class = "lineno" > 820< / span >   < span class = "comment" > // matrix. See glp_ftran documentation in glpapi12.c for how the< / span > < / div >
< div class = "line" > < a name = "l00821" > < / a > < span class = "lineno" > 821< / span >   < span class = "comment" > // scaling is done: inv(B' ' ) = inv(SB) * inv(B) * inv(R) where:< / span > < / div >
< div class = "line" > < a name = "l00822" > < / a > < span class = "lineno" > 822< / span >   < span class = "comment" > // o B' ' is the scaled basis< / span > < / div >
< div class = "line" > < a name = "l00823" > < / a > < span class = "lineno" > 823< / span >   < span class = "comment" > // o B is the original basis< / span > < / div >
< div class = "line" > < a name = "l00824" > < / a > < span class = "lineno" > 824< / span >   < span class = "comment" > // o R is the diagonal row scaling matrix< / span > < / div >
< div class = "line" > < a name = "l00825" > < / a > < span class = "lineno" > 825< / span >   < span class = "comment" > // o SB consists of the basic columns of the augmented column< / span > < / div >
< div class = "line" > < a name = "l00826" > < / a > < span class = "lineno" > 826< / span >   < span class = "comment" > // scaling matrix (auxiliary variables then structural variables):< / span > < / div >
< div class = "line" > < a name = "l00827" > < / a > < span class = "lineno" > 827< / span >   < span class = "comment" > // S~ = diag(inv(R) | S).< / span > < / div >
< div class = "line" > < a name = "l00828" > < / a > < span class = "lineno" > 828< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > k = 1; k < = num_rows; ++k) {< / div >
< div class = "line" > < a name = "l00829" > < / a > < span class = "lineno" > 829< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = 1; < 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 = "l00830" > < / a > < span class = "lineno" > 830< / span >   right_hand_side[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] = 0.0;< / div >
< div class = "line" > < a name = "l00831" > < / a > < span class = "lineno" > 831< / span >   }< / div >
< div class = "line" > < a name = "l00832" > < / a > < span class = "lineno" > 832< / span >   right_hand_side[k] = 1.0;< / div >
< div class = "line" > < a name = "l00833" > < / a > < span class = "lineno" > 833< / span >   < span class = "comment" > // Multiply input by inv(R).< / span > < / div >
< div class = "line" > < a name = "l00834" > < / a > < span class = "lineno" > 834< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = 1; < 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 = "l00835" > < / a > < span class = "lineno" > 835< / span >   right_hand_side[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] /= row_scaling_factor[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ];< / div >
< div class = "line" > < a name = "l00836" > < / a > < span class = "lineno" > 836< / span >   }< / div >
< div class = "line" > < a name = "l00837" > < / a > < span class = "lineno" > 837< / span >   glp_ftran(lp_, right_hand_side.get());< / div >
< div class = "line" > < a name = "l00838" > < / a > < span class = "lineno" > 838< / span >   < span class = "comment" > // glp_ftran stores the result in the same vector where the right< / span > < / div >
< div class = "line" > < a name = "l00839" > < / a > < span class = "lineno" > 839< / span >   < span class = "comment" > // hand side was provided.< / span > < / div >
< div class = "line" > < a name = "l00840" > < / a > < span class = "lineno" > 840< / span >   < span class = "comment" > // Multiply result by inv(SB).< / span > < / div >
< div class = "line" > < a name = "l00841" > < / a > < span class = "lineno" > 841< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = 1; < 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 = "l00842" > < / a > < span class = "lineno" > 842< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > k = glp_get_bhead(lp_, < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > );< / div >
< div class = "line" > < a name = "l00843" > < / a > < span class = "lineno" > 843< / span >   < span class = "keywordflow" > if< / span > (k < = num_rows) {< / div >
< div class = "line" > < a name = "l00844" > < / a > < span class = "lineno" > 844< / span >   < span class = "comment" > // Auxiliary variable.< / span > < / div >
< div class = "line" > < a name = "l00845" > < / a > < span class = "lineno" > 845< / span >   right_hand_side[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] *= row_scaling_factor[k];< / div >
< div class = "line" > < a name = "l00846" > < / a > < span class = "lineno" > 846< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00847" > < / a > < span class = "lineno" > 847< / span >   < span class = "comment" > // Structural variable.< / span > < / div >
< div class = "line" > < a name = "l00848" > < / a > < span class = "lineno" > 848< / span >   right_hand_side[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ] /= column_scaling_factor[k - num_rows];< / div >
< div class = "line" > < a name = "l00849" > < / a > < span class = "lineno" > 849< / span >   }< / 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 = "comment" > // Compute sum_row |vector_row|.< / span > < / div >
< div class = "line" > < a name = "l00852" > < / a > < span class = "lineno" > 852< / span >   < span class = "keywordtype" > double< / span > column_norm = 0.0;< / div >
< div class = "line" > < a name = "l00853" > < / a > < span class = "lineno" > 853< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > < a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > = 1; < 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 = "l00854" > < / a > < span class = "lineno" > 854< / span >   column_norm += fabs(right_hand_side[< a class = "code" href = "markowitz_8cc.html#aea35f36ba98d5bbd8d033382f50c9e52" > row< / a > ]);< / 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 >   < span class = "comment" > // Compute max_col column_norm< / span > < / div >
< div class = "line" > < a name = "l00857" > < / a > < span class = "lineno" > 857< / span >   norm = < a class = "code" href = "alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f" > std::max< / a > (norm, column_norm);< / div >
< div class = "line" > < a name = "l00858" > < / a > < span class = "lineno" > 858< / span >   }< / div >
< div class = "line" > < a name = "l00859" > < / a > < span class = "lineno" > 859< / span >   < span class = "keywordflow" > return< / span > norm;< / div >
< div class = "line" > < a name = "l00860" > < / a > < span class = "lineno" > 860< / span >   }< / div >
< div class = "line" > < a name = "l00861" > < / a > < span class = "lineno" > 861< / span >   < / div >
< div class = "line" > < a name = "l00862" > < / a > < span class = "lineno" > 862< / span >   < span class = "comment" > // ------ Parameters ------< / span > < / div >
< div class = "line" > < a name = "l00863" > < / a > < span class = "lineno" > 863< / span >   < / div >
< div class = "line" > < a name = "l00864" > < / a > < span class = "lineno" > 864< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::ConfigureGLPKParameters(< span class = "keyword" > const< / span > MPSolverParameters& param) {< / div >
< div class = "line" > < a name = "l00865" > < / a > < span class = "lineno" > 865< / span >   < span class = "keywordflow" > if< / span > (mip_) {< / div >
< div class = "line" > < a name = "l00866" > < / a > < span class = "lineno" > 866< / span >   glp_init_iocp(& mip_param_);< / div >
< div class = "line" > < a name = "l00867" > < / a > < span class = "lineno" > 867< / span >   < span class = "comment" > // Time limit< / span > < / div >
< div class = "line" > < a name = "l00868" > < / a > < span class = "lineno" > 868< / span >   < span class = "keywordflow" > if< / span > (solver_-> time_limit()) {< / div >
< div class = "line" > < a name = "l00869" > < / a > < span class = "lineno" > 869< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Setting time limit = " < / span > < < solver_-> time_limit() < < < span class = "stringliteral" > " ms." < / span > ;< / div >
< div class = "line" > < a name = "l00870" > < / a > < span class = "lineno" > 870< / span >   mip_param_.tm_lim = solver_-> time_limit();< / div >
< div class = "line" > < a name = "l00871" > < / a > < span class = "lineno" > 871< / span >   }< / div >
< div class = "line" > < a name = "l00872" > < / a > < span class = "lineno" > 872< / span >   < span class = "comment" > // Initialize structures related to the callback.< / span > < / div >
< div class = "line" > < a name = "l00873" > < / a > < span class = "lineno" > 873< / span >   mip_param_.cb_func = GLPKGatherInformationCallback;< / div >
< div class = "line" > < a name = "l00874" > < / a > < span class = "lineno" > 874< / span >   mip_callback_info_-> Reset(< a class = "code" href = "search_8cc.html#a9648c36eafdd6183052aeec5bef2d8b2" > maximize_< / a > );< / div >
< div class = "line" > < a name = "l00875" > < / a > < span class = "lineno" > 875< / span >   mip_param_.cb_info = mip_callback_info_.get();< / div >
< div class = "line" > < a name = "l00876" > < / a > < span class = "lineno" > 876< / span >   < span class = "comment" > // TODO(user): switch some cuts on? All cuts are off by default!?< / span > < / div >
< div class = "line" > < a name = "l00877" > < / a > < span class = "lineno" > 877< / span >   }< / div >
< div class = "line" > < a name = "l00878" > < / a > < span class = "lineno" > 878< / span >   < / div >
< div class = "line" > < a name = "l00879" > < / a > < span class = "lineno" > 879< / span >   < span class = "comment" > // Configure LP parameters in all cases since they will be used to< / span > < / div >
< div class = "line" > < a name = "l00880" > < / a > < span class = "lineno" > 880< / span >   < span class = "comment" > // solve the root LP in the MIP case.< / span > < / div >
< div class = "line" > < a name = "l00881" > < / a > < span class = "lineno" > 881< / span >   glp_init_smcp(& lp_param_);< / div >
< div class = "line" > < a name = "l00882" > < / a > < span class = "lineno" > 882< / span >   < span class = "comment" > // Time limit< / span > < / div >
< div class = "line" > < a name = "l00883" > < / a > < span class = "lineno" > 883< / span >   < span class = "keywordflow" > if< / span > (solver_-> time_limit()) {< / div >
< div class = "line" > < a name = "l00884" > < / a > < span class = "lineno" > 884< / span >   < a class = "code" href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > (1) < < < span class = "stringliteral" > " Setting time limit = " < / span > < < solver_-> time_limit() < < < span class = "stringliteral" > " ms." < / span > ;< / div >
< div class = "line" > < a name = "l00885" > < / a > < span class = "lineno" > 885< / span >   lp_param_.tm_lim = solver_-> time_limit();< / div >
< div class = "line" > < a name = "l00886" > < / a > < span class = "lineno" > 886< / span >   }< / div >
< div class = "line" > < a name = "l00887" > < / a > < span class = "lineno" > 887< / span >   < / div >
< div class = "line" > < a name = "l00888" > < / a > < span class = "lineno" > 888< / span >   < span class = "comment" > // Should give a numerically better representation of the problem.< / span > < / div >
< div class = "line" > < a name = "l00889" > < / a > < span class = "lineno" > 889< / span >   glp_scale_prob(lp_, GLP_SF_AUTO);< / div >
< div class = "line" > < a name = "l00890" > < / a > < span class = "lineno" > 890< / span >   < / div >
< div class = "line" > < a name = "l00891" > < / a > < span class = "lineno" > 891< / span >   < span class = "comment" > // Use advanced initial basis (options: standard / advanced / Bixby' s).< / span > < / div >
< div class = "line" > < a name = "l00892" > < / a > < span class = "lineno" > 892< / span >   glp_adv_basis(lp_, 0);< / 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 >   < span class = "comment" > // Set parameters specified by the user.< / span > < / div >
< div class = "line" > < a name = "l00895" > < / a > < span class = "lineno" > 895< / span >   SetParameters(param);< / div >
< div class = "line" > < a name = "l00896" > < / a > < span class = "lineno" > 896< / span >   }< / div >
< div class = "line" > < a name = "l00897" > < / a > < span class = "lineno" > 897< / span >   < / div >
< div class = "line" > < a name = "l00898" > < / a > < span class = "lineno" > 898< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::SetParameters(< span class = "keyword" > const< / span > MPSolverParameters& param) {< / div >
< div class = "line" > < a name = "l00899" > < / a > < span class = "lineno" > 899< / span >   SetCommonParameters(param);< / div >
< div class = "line" > < a name = "l00900" > < / a > < span class = "lineno" > 900< / span >   < span class = "keywordflow" > if< / span > (mip_) {< / div >
< div class = "line" > < a name = "l00901" > < / a > < span class = "lineno" > 901< / span >   SetMIPParameters(param);< / div >
< div class = "line" > < a name = "l00902" > < / a > < span class = "lineno" > 902< / span >   }< / div >
< div class = "line" > < a name = "l00903" > < / a > < span class = "lineno" > 903< / span >   }< / 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 >   < span class = "keywordtype" > void< / span > GLPKInterface::SetRelativeMipGap(< span class = "keywordtype" > double< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) {< / div >
< div class = "line" > < a name = "l00906" > < / a > < span class = "lineno" > 906< / span >   < span class = "keywordflow" > if< / span > (mip_) {< / div >
< div class = "line" > < a name = "l00907" > < / a > < span class = "lineno" > 907< / span >   mip_param_.mip_gap = < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ;< / div >
< div class = "line" > < a name = "l00908" > < / a > < span class = "lineno" > 908< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00909" > < / a > < span class = "lineno" > 909< / span >   < a class = "code" href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > (< a class = "code" href = "log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7" > WARNING< / a > ) < < < span class = "stringliteral" > " The relative MIP gap is only available " < / span > < / div >
< div class = "line" > < a name = "l00910" > < / a > < span class = "lineno" > 910< / span >   < < < span class = "stringliteral" > " for discrete problems." < / span > ;< / div >
< div class = "line" > < a name = "l00911" > < / a > < span class = "lineno" > 911< / span >   }< / div >
< div class = "line" > < a name = "l00912" > < / a > < span class = "lineno" > 912< / span >   }< / 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 >   < span class = "keywordtype" > void< / span > GLPKInterface::SetPrimalTolerance(< span class = "keywordtype" > double< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) {< / div >
< div class = "line" > < a name = "l00915" > < / a > < span class = "lineno" > 915< / span >   lp_param_.tol_bnd = < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ;< / div >
< div class = "line" > < a name = "l00916" > < / a > < span class = "lineno" > 916< / span >   }< / div >
< div class = "line" > < a name = "l00917" > < / a > < span class = "lineno" > 917< / span >   < / div >
< div class = "line" > < a name = "l00918" > < / a > < span class = "lineno" > 918< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::SetDualTolerance(< span class = "keywordtype" > double< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) { lp_param_.tol_dj = < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ; }< / div >
< div class = "line" > < a name = "l00919" > < / a > < span class = "lineno" > 919< / span >   < / div >
< div class = "line" > < a name = "l00920" > < / a > < span class = "lineno" > 920< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::SetPresolveMode(< span class = "keywordtype" > int< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) {< / div >
< div class = "line" > < a name = "l00921" > < / a > < span class = "lineno" > 921< / span >   < span class = "keywordflow" > switch< / span > (< a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) {< / div >
< div class = "line" > < a name = "l00922" > < / a > < span class = "lineno" > 922< / span >   < span class = "keywordflow" > case< / span > MPSolverParameters::PRESOLVE_OFF: {< / div >
< div class = "line" > < a name = "l00923" > < / a > < span class = "lineno" > 923< / span >   mip_param_.presolve = GLP_OFF;< / div >
< div class = "line" > < a name = "l00924" > < / a > < span class = "lineno" > 924< / span >   lp_param_.presolve = GLP_OFF;< / div >
< div class = "line" > < a name = "l00925" > < / a > < span class = "lineno" > 925< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00926" > < / a > < span class = "lineno" > 926< / span >   }< / div >
< div class = "line" > < a name = "l00927" > < / a > < span class = "lineno" > 927< / span >   < span class = "keywordflow" > case< / span > MPSolverParameters::PRESOLVE_ON: {< / div >
< div class = "line" > < a name = "l00928" > < / a > < span class = "lineno" > 928< / span >   mip_param_.presolve = GLP_ON;< / div >
< div class = "line" > < a name = "l00929" > < / a > < span class = "lineno" > 929< / span >   lp_param_.presolve = GLP_ON;< / div >
< div class = "line" > < a name = "l00930" > < / a > < span class = "lineno" > 930< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00931" > < / a > < span class = "lineno" > 931< / span >   }< / div >
< div class = "line" > < a name = "l00932" > < / a > < span class = "lineno" > 932< / span >   < span class = "keywordflow" > default< / span > : {< / div >
< div class = "line" > < a name = "l00933" > < / a > < span class = "lineno" > 933< / span >   SetIntegerParamToUnsupportedValue(MPSolverParameters::PRESOLVE, < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > );< / div >
< div class = "line" > < a name = "l00934" > < / a > < span class = "lineno" > 934< / 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 >   < / div >
< div class = "line" > < a name = "l00938" > < / a > < span class = "lineno" > 938< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::SetScalingMode(< span class = "keywordtype" > int< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) {< / div >
< div class = "line" > < a name = "l00939" > < / a > < span class = "lineno" > 939< / span >   SetUnsupportedIntegerParam(MPSolverParameters::SCALING);< / div >
< div class = "line" > < a name = "l00940" > < / a > < span class = "lineno" > 940< / span >   }< / div >
< div class = "line" > < a name = "l00941" > < / a > < span class = "lineno" > 941< / span >   < / div >
< div class = "line" > < a name = "l00942" > < / a > < span class = "lineno" > 942< / span >   < span class = "keywordtype" > void< / span > GLPKInterface::SetLpAlgorithm(< span class = "keywordtype" > int< / span > < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) {< / div >
< div class = "line" > < a name = "l00943" > < / a > < span class = "lineno" > 943< / span >   < span class = "keywordflow" > switch< / span > (< a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > ) {< / div >
< div class = "line" > < a name = "l00944" > < / a > < span class = "lineno" > 944< / span >   < span class = "keywordflow" > case< / span > MPSolverParameters::DUAL: {< / div >
< div class = "line" > < a name = "l00945" > < / a > < span class = "lineno" > 945< / span >   < span class = "comment" > // Use dual, and if it fails, switch to primal.< / span > < / div >
< div class = "line" > < a name = "l00946" > < / a > < span class = "lineno" > 946< / span >   lp_param_.meth = GLP_DUALP;< / div >
< div class = "line" > < a name = "l00947" > < / a > < span class = "lineno" > 947< / span >   < span class = "keywordflow" > break< / span > ;< / div >
< div class = "line" > < a name = "l00948" > < / a > < span class = "lineno" > 948< / span >   }< / div >
< div class = "line" > < a name = "l00949" > < / a > < span class = "lineno" > 949< / span >   < span class = "keywordflow" > case< / span > MPSolverParameters::PRIMAL: {< / div >
< div class = "line" > < a name = "l00950" > < / a > < span class = "lineno" > 950< / span >   lp_param_.meth = GLP_PRIMAL;< / div >
< div class = "line" > < a name = "l00951" > < / a > < span class = "lineno" > 951< / span >   < span class = "keywordflow" > break< / 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 >   < span class = "keywordflow" > case< / span > MPSolverParameters::BARRIER:< / div >
< div class = "line" > < a name = "l00954" > < / a > < span class = "lineno" > 954< / span >   < span class = "keywordflow" > default< / span > : {< / div >
< div class = "line" > < a name = "l00955" > < / a > < span class = "lineno" > 955< / span >   SetIntegerParamToUnsupportedValue(MPSolverParameters::LP_ALGORITHM,< / div >
< div class = "line" > < a name = "l00956" > < / a > < span class = "lineno" > 956< / span >   < a class = "code" href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > );< / div >
< 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 >
< div class = "line" > < a name = "l00959" > < / a > < span class = "lineno" > 959< / span >   }< / div >
< div class = "line" > < a name = "l00960" > < / a > < span class = "lineno" > 960< / span >   < / div >
< div class = "line" > < a name = "l00961" > < / a > < span class = "lineno" > 961< / span >   MPSolverInterface* BuildGLPKInterface(< span class = "keywordtype" > bool< / span > mip, MPSolver* < span class = "keyword" > const< / span > solver) {< / div >
< div class = "line" > < a name = "l00962" > < / a > < span class = "lineno" > 962< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > new< / span > GLPKInterface(solver, mip);< / div >
< div class = "line" > < a name = "l00963" > < / a > < span class = "lineno" > 963< / span >   }< / div >
< 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" > // namespace operations_research< / span > < / div >
< div class = "line" > < a name = "l00966" > < / a > < span class = "lineno" > 966< / span >   < span class = "preprocessor" > #endif < / span > < span class = "comment" > // #if defined(USE_GLPK)< / span > < / div >
< div class = "ttc" id = "aalldiff__cst_8cc_html_a26e6db9bcc64b584051ecc28171ed11f" > < div class = "ttname" > < a href = "alldiff__cst_8cc.html#a26e6db9bcc64b584051ecc28171ed11f" > max< / a > < / div > < div class = "ttdeci" > int64_t max< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "alldiff__cst_8cc_source.html#l00140" > alldiff_cst.cc:140< / a > < / div > < / div >
2020-09-01 16:00:33 +02:00
< div class = "ttc" id = "abase_2logging_8h_html" > < div class = "ttname" > < a href = "base_2logging_8h.html" > logging.h< / a > < / div > < / div >
2021-04-27 23:00:03 +02:00
< div class = "ttc" id = "abase_2logging_8h_html_a3e1cfef60e774a81f30eaddf26a3a274" > < div class = "ttname" > < a href = "base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274" > CHECK< / a > < / div > < div class = "ttdeci" > #define CHECK(condition)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00498" > base/logging.h:498< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_a46e69120fbd3b36e6960e096d23b66f0" > < div class = "ttname" > < a href = "base_2logging_8h.html#a46e69120fbd3b36e6960e096d23b66f0" > DCHECK_NE< / a > < / div > < div class = "ttdeci" > #define DCHECK_NE(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00894" > base/logging.h:894< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_a7c0ce053b28d53aa4eaf3eb7fb71663b" > < div class = "ttname" > < a href = "base_2logging_8h.html#a7c0ce053b28d53aa4eaf3eb7fb71663b" > CHECK_EQ< / a > < / div > < div class = "ttdeci" > #define CHECK_EQ(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00705" > base/logging.h:705< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_aae2dc65d9ea248d54bf39daa986dd295" > < div class = "ttname" > < a href = "base_2logging_8h.html#aae2dc65d9ea248d54bf39daa986dd295" > DCHECK_GE< / a > < / div > < div class = "ttdeci" > #define DCHECK_GE(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00897" > base/logging.h:897< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_ab62f5ed8f2d48e29802be0cbbcd1359a" > < div class = "ttname" > < a href = "base_2logging_8h.html#ab62f5ed8f2d48e29802be0cbbcd1359a" > DCHECK_LT< / a > < / div > < div class = "ttdeci" > #define DCHECK_LT(val1, val2)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00896" > base/logging.h:896< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_accad43a85d781d53381cd53a9894b6ae" > < div class = "ttname" > < a href = "base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae" > LOG< / a > < / div > < div class = "ttdeci" > #define LOG(severity)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00423" > base/logging.h:423< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_ae17f8119c108cf3070bad3449c7e0006" > < div class = "ttname" > < a href = "base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006" > DCHECK< / a > < / div > < div class = "ttdeci" > #define DCHECK(condition)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00892" > base/logging.h:892< / a > < / div > < / div >
< div class = "ttc" id = "abase_2logging_8h_html_afcaa7cadd41741bb855c2ada1d2ef927" > < div class = "ttname" > < a href = "base_2logging_8h.html#afcaa7cadd41741bb855c2ada1d2ef927" > VLOG< / a > < / div > < div class = "ttdeci" > #define VLOG(verboselevel)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "base_2logging_8h_source.html#l00986" > base/logging.h:986< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "aclass_wall_timer_html" > < div class = "ttname" > < a href = "class_wall_timer.html" > WallTimer< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "timer_8h_source.html#l00023" > timer.h:23< / a > < / div > < / div >
< div class = "ttc" id = "aclass_wall_timer_html_a07aaf1227e4d645f15e0a964f54ef291" > < div class = "ttname" > < a href = "class_wall_timer.html#a07aaf1227e4d645f15e0a964f54ef291" > WallTimer::Start< / a > < / div > < div class = "ttdeci" > void Start()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "timer_8h_source.html#l00031" > timer.h:31< / a > < / div > < / div >
< div class = "ttc" id = "aclass_wall_timer_html_a6bdbb9a2345c126ae0d72b1e2a9a21d5" > < div class = "ttname" > < a href = "class_wall_timer.html#a6bdbb9a2345c126ae0d72b1e2a9a21d5" > WallTimer::Restart< / a > < / div > < div class = "ttdeci" > void Restart()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "timer_8h_source.html#l00035" > timer.h:35< / a > < / div > < / div >
< div class = "ttc" id = "aclass_wall_timer_html_aec56fe080959ecebec3feaed9dafde84" > < div class = "ttname" > < a href = "class_wall_timer.html#aec56fe080959ecebec3feaed9dafde84" > WallTimer::Get< / a > < / div > < div class = "ttdeci" > double Get() const< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "timer_8h_source.html#l00045" > timer.h:45< / a > < / div > < / div >
2021-04-27 23:00:03 +02:00
< div class = "ttc" id = "aclassoperations__research_1_1_m_p_solver_html_a573d479910e373f5d771d303e440587d" > < div class = "ttname" > < a href = "classoperations__research_1_1_m_p_solver.html#a573d479910e373f5d771d303e440587d" > operations_research::MPSolver::ResultStatus< / a > < / div > < div class = "ttdeci" > ResultStatus< / div > < div class = "ttdoc" > The status of solving the problem.< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "linear__solver_8h_source.html#l00437" > linear_solver.h:437< / a > < / div > < / div >
< div class = "ttc" id = "aclassoperations__research_1_1_m_p_solver_html_afd922eb2bef96597c426557a8056f76d" > < div class = "ttname" > < a href = "classoperations__research_1_1_m_p_solver.html#afd922eb2bef96597c426557a8056f76d" > operations_research::MPSolver::BasisStatus< / a > < / div > < div class = "ttdeci" > BasisStatus< / div > < div class = "ttdoc" > Advanced usage: possible basis status values for a variable and the slack variable of a linear constr...< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "linear__solver_8h_source.html#l00654" > linear_solver.h:654< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "acommandlineflags_8h_html" > < div class = "ttname" > < a href = "commandlineflags_8h.html" > commandlineflags.h< / a > < / div > < / div >
2021-04-27 23:00:03 +02:00
< div class = "ttc" id = "ademon__profiler_8cc_html_a05da18ca9c7b657a4a6ea24e07c9b695" > < div class = "ttname" > < a href = "demon__profiler_8cc.html#a05da18ca9c7b657a4a6ea24e07c9b695" > ct< / a > < / div > < div class = "ttdeci" > const Constraint * ct< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "demon__profiler_8cc_source.html#l00043" > demon_profiler.cc:43< / a > < / div > < / div >
< div class = "ttc" id = "ademon__profiler_8cc_html_ac072af30c4ffbc834bb4c681f6ecb514" > < div class = "ttname" > < a href = "demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514" > value< / a > < / div > < div class = "ttdeci" > int64_t value< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "demon__profiler_8cc_source.html#l00044" > demon_profiler.cc:44< / a > < / div > < / div >
< div class = "ttc" id = "aexpr__array_8cc_html_a472a99923cbe11ae7b5a5d157d9ad465" > < div class = "ttname" > < a href = "expr__array_8cc.html#a472a99923cbe11ae7b5a5d157d9ad465" > var< / a > < / div > < div class = "ttdeci" > IntVar * var< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "expr__array_8cc_source.html#l01874" > expr_array.cc:1874< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "ahash_8h_html" > < div class = "ttname" > < a href = "hash_8h.html" > hash.h< / a > < / div > < / div >
< div class = "ttc" id = "aintegral__types_8h_html" > < div class = "ttname" > < a href = "integral__types_8h.html" > integral_types.h< / a > < / div > < / div >
< div class = "ttc" id = "alinear__solver_8h_html" > < div class = "ttname" > < a href = "linear__solver_8h.html" > linear_solver.h< / a > < / div > < div class = "ttdoc" > A C++ wrapper that provides a simple and unified interface to several linear programming and mixed in...< / div > < / div >
< div class = "ttc" id = "alog__severity_8h_html_a50e5762f38854b37ee3e2851bc1bb0e7" > < div class = "ttname" > < a href = "log__severity_8h.html#a50e5762f38854b37ee3e2851bc1bb0e7" > WARNING< / a > < / div > < div class = "ttdeci" > const int WARNING< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "log__severity_8h_source.html#l00031" > log_severity.h:31< / a > < / div > < / div >
< div class = "ttc" id = "alog__severity_8h_html_acdd38e3c9f22f127d7776920e3079eda" > < div class = "ttname" > < a href = "log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda" > FATAL< / a > < / div > < div class = "ttdeci" > const int FATAL< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "log__severity_8h_source.html#l00032" > log_severity.h:32< / a > < / div > < / div >
2021-04-27 23:00:03 +02:00
< div class = "ttc" id = "amarkowitz_8cc_html_aa9d6c98fdf8d89b0e2321fda02adc82c" > < div class = "ttname" > < a href = "markowitz_8cc.html#aa9d6c98fdf8d89b0e2321fda02adc82c" > col< / a > < / div > < div class = "ttdeci" > ColIndex col< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "markowitz_8cc_source.html#l00183" > markowitz.cc:183< / a > < / div > < / div >
< 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#l00182" > markowitz.cc:182< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1data_1_1vbp_html_a4604191fbd84a43686f44c25d7bd0161a03f919221217f95d21a593a7120165e1" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a03f919221217f95d21a593a7120165e1" > operations_research::data::vbp::FEASIBLE< / a > < / div > < div class = "ttdeci" > @ FEASIBLE< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "vector__bin__packing_8pb_8h_source.html#l00089" > vector_bin_packing.pb.h:89< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1data_1_1vbp_html_a4604191fbd84a43686f44c25d7bd0161a2579881e7c83261bc21bafb5a5c92cad" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2579881e7c83261bc21bafb5a5c92cad" > operations_research::data::vbp::OPTIMAL< / a > < / div > < div class = "ttdeci" > @ OPTIMAL< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "vector__bin__packing_8pb_8h_source.html#l00088" > vector_bin_packing.pb.h:88< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1data_1_1vbp_html_a4604191fbd84a43686f44c25d7bd0161a2884fa43446c0cbc9c7a9b74d41d7483" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1data_1_1vbp.html#a4604191fbd84a43686f44c25d7bd0161a2884fa43446c0cbc9c7a9b74d41d7483" > operations_research::data::vbp::INFEASIBLE< / a > < / div > < div class = "ttdeci" > @ INFEASIBLE< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "vector__bin__packing_8pb_8h_source.html#l00090" > vector_bin_packing.pb.h:90< / a > < / div > < / div >
< div class = "ttc" id = "anamespaceoperations__research_1_1sat_html_af904018d9a1c9983624b1ce0331f2bf5" > < div class = "ttname" > < a href = "namespaceoperations__research_1_1sat.html#af904018d9a1c9983624b1ce0331f2bf5" > operations_research::sat::Solve< / a > < / div > < div class = "ttdeci" > CpSolverResponse Solve(const CpModelProto & model_proto)< / div > < div class = "ttdoc" > Solves the given CpModelProto and returns an instance of CpSolverResponse.< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "cp__model__solver_8cc_source.html#l03361" > cp_model_solver.cc:3361< / a > < / div > < / div >
< 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 = "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#l00509" > pack.cc:509< / a > < / div > < / div >
< div class = "ttc" id = "arouting__filters_8cc_html_a8e4ee19dee0e00541dbe9bbc83d806ba" > < div class = "ttname" > < a href = "routing__filters_8cc.html#a8e4ee19dee0e00541dbe9bbc83d806ba" > coefficient< / a > < / div > < div class = "ttdeci" > int64_t coefficient< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "routing__filters_8cc_source.html#l00985" > routing_filters.cc:985< / a > < / div > < / div >
< div class = "ttc" id = "arouting__search_8cc_html_a6b7983ccd32c86cbbc3d4d9cda4cac17" > < div class = "ttname" > < a href = "routing__search_8cc.html#a6b7983ccd32c86cbbc3d4d9cda4cac17" > nodes< / a > < / div > < div class = "ttdeci" > int nodes< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "routing__search_8cc_source.html#l03686" > routing_search.cc:3686< / a > < / div > < / div >
< div class = "ttc" id = "asearch_8cc_html_a9648c36eafdd6183052aeec5bef2d8b2" > < div class = "ttname" > < a href = "search_8cc.html#a9648c36eafdd6183052aeec5bef2d8b2" > maximize_< / a > < / div > < div class = "ttdeci" > const bool maximize_< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "search_8cc_source.html#l02508" > search.cc:2508< / a > < / div > < / div >
2021-01-26 11:28:50 +01:00
< div class = "ttc" id = "atimer_8h_html" > < div class = "ttname" > < a href = "timer_8h.html" > timer.h< / a > < / div > < / div >
< / div > <!-- fragment --> < / div > <!-- contents -->
< / div > <!-- doc - content -->
2020-09-01 16:00:33 +02:00
<!-- HTML footer for doxygen 1.8.18 -->
<!-- start footer part -->
< div id = "nav-path" class = "navpath" > <!-- id is needed for treeview function! -->
< ul >
< li class = "navelem" > < a class = "el" href = "dir_a7cc1eeded8f693d0da6c729bc88c45a.html" > ortools< / a > < / li > < li class = "navelem" > < a class = "el" href = "dir_4d3a5a688e4550f3d7725aaa5ab9c27b.html" > linear_solver< / a > < / li > < li class = "navelem" > < a class = "el" href = "glpk__interface_8cc.html" > glpk_interface.cc< / a > < / li >
< li class = "footer" > Generated by
< a href = "http://www.doxygen.org/index.html" >
2021-01-26 11:28:50 +01:00
< img class = "footer" src = "doxygen.png" alt = "doxygen" / > < / a > 1.9.1 < / li >
2020-09-01 16:00:33 +02:00
< / ul >
< / div >
< / body >
< / html >
