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<a href="solver_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><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// You may obtain a copy of the License at</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// limitations under the License.</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "<a class="code" href="solver_8h.html">ortools/math_opt/core/solver.h</a>"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <stdint.h></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 <functional></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <memory></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <utility></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</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="l00024"></a><span class="lineno"> 24</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="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "absl/memory/memory.h"</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "absl/status/status.h"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "absl/status/statusor.h"</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "absl/types/span.h"</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "ortools/math_opt/callback.pb.h"</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "<a class="code" href="model__summary_8h.html">ortools/math_opt/core/model_summary.h</a>"</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "<a class="code" href="solver__interface_8h.html">ortools/math_opt/core/solver_interface.h</a>"</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "ortools/math_opt/model.pb.h"</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include "ortools/math_opt/model_parameters.pb.h"</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "ortools/math_opt/model_update.pb.h"</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "ortools/math_opt/parameters.pb.h"</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "ortools/math_opt/result.pb.h"</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "<a class="code" href="callback__validator_8h.html">ortools/math_opt/validators/callback_validator.h</a>"</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include "<a class="code" href="model__parameters__validator_8h.html">ortools/math_opt/validators/model_parameters_validator.h</a>"</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include "<a class="code" href="math__opt_2validators_2model__validator_8h.html">ortools/math_opt/validators/model_validator.h</a>"</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include "<a class="code" href="solution__validator_8h.html">ortools/math_opt/validators/solution_validator.h</a>"</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include "<a class="code" href="solver__parameters__validator_8h.html">ortools/math_opt/validators/solver_parameters_validator.h</a>"</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include "<a class="code" href="status__macros_8h.html">ortools/base/status_macros.h</a>"</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">namespace </span><a class="code" href="namespaceoperations__research.html">operations_research</a> {</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">namespace </span>math_opt {</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="keyword">namespace </span>{</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">template</span> <<span class="keyword">typename</span> IdNameContainer></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keywordtype">void</span> UpdateIdNameMap(<span class="keyword">const</span> absl::Span<const int64_t> deleted_ids,</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">const</span> IdNameContainer& container, IdNameBiMap& bimap) {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> int64_t deleted_id : deleted_ids) {</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  bimap.Erase(deleted_id);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < container.ids_size(); ++i) {</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  std::string <a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span> (!container.names().empty()) {</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a> = container.names(i);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  bimap.Insert(container.ids(i), std::move(<a class="code" href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a>));</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> }</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> ModelSummary MakeSummary(<span class="keyword">const</span> ModelProto& <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>) {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  ModelSummary summary;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  UpdateIdNameMap<VariablesProto>({}, <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.variables(), summary.variables);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  UpdateIdNameMap<LinearConstraintsProto>({}, <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>.linear_constraints(),</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  summary.linear_constraints);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> summary;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="keywordtype">void</span> UpdateSummaryFromModelUpdate(<span class="keyword">const</span> ModelUpdateProto& model_update,</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  ModelSummary& summary) {</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  UpdateIdNameMap<VariablesProto>(model_update.deleted_variable_ids(),</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  model_update.new_variables(),</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  summary.variables);</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  UpdateIdNameMap<LinearConstraintsProto>(</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  model_update.deleted_linear_constraint_ids(),</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  model_update.new_linear_constraints(), summary.linear_constraints);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</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="comment">// Returns an InternalError with the input status message if the input status is</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment">// not OK.</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> absl::Status ToInternalError(<span class="keyword">const</span> absl::Status original) {</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">if</span> (original.ok()) {</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">return</span> original;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</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="keywordflow">return</span> absl::InternalError(original.message());</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><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> <a class="code" href="classoperations__research_1_1math__opt_1_1_solver.html#ac3d73bcaa7a8494c030cfbd182a89f02">Solver::Solver</a>(std::unique_ptr<SolverInterface> underlying_solver,</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  ModelSummary model_summary)</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  : underlying_solver_(std::move(underlying_solver)),</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  model_summary_(std::move(model_summary)) {</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <a class="code" href="base_2logging_8h.html#a3e1cfef60e774a81f30eaddf26a3a274">CHECK</a>(underlying_solver_ != <span class="keyword">nullptr</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> </div><div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="classoperations__research_1_1math__opt_1_1_solver.html#afa9095b39ffb466b7a8d8dcece9a455e"> 101</a></span> absl::StatusOr<std::unique_ptr<Solver>> Solver::New(</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">const</span> SolverType solver_type, <span class="keyword">const</span> ModelProto& <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>,</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">const</span> SolverInitializerProto& initializer) {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(<a class="code" href="namespaceoperations__research_1_1math__opt.html#af039565f98410c47887cc13d5dbdd31b">ValidateModel</a>(<a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>));</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="status__macros_8h.html#a600de4b8f65fe0a4b1898041634f9011">ASSIGN_OR_RETURN</a>(</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">auto</span> underlying_solver,</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  AllSolversRegistry::Instance()->Create(solver_type, <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>, initializer));</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">auto</span> result = absl::WrapUnique(</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">new</span> <a class="code" href="classoperations__research_1_1_solver.html#abac10873a1af49f1dce33a34f3afaa56">Solver</a>(std::move(underlying_solver), MakeSummary(<a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>)));</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> }</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div><div class="line"><a name="l00113"></a><span class="lineno"><a class="line" href="classoperations__research_1_1math__opt_1_1_solver.html#abf5b2161b103c058cea47bbfd2683616"> 113</a></span> absl::StatusOr<SolveResultProto> <a class="code" href="classoperations__research_1_1_solver.html#a946780dfafc8faa3dd2d345850213be5">Solver::Solve</a>(</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">const</span> SolveParametersProto& <a class="code" href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a>,</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">const</span> ModelSolveParametersProto& model_parameters,</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">const</span> CallbackRegistrationProto& callback_registration,</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">const</span> <a class="code" href="classoperations__research_1_1math__opt_1_1_solver.html#acc33a9824afffd1de1d7c85906c5fd31">Callback</a> user_cb) {</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="comment">// TODO(b/168037341): we should validate the result maths. Since the result</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">// can be filtered, this should be included in the solver_interface</span></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="comment">// implementations.</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(<a class="code" href="namespaceoperations__research_1_1math__opt.html#ab91fc238b75cc4908d380a32876551e9">ValidateSolverParameters</a>(<a class="code" href="classoperations__research_1_1_solver.html#a2a0b93a70f0d588f157ade7909c42eff">parameters</a>)) << <span class="stringliteral">"invalid parameters"</span>;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="namespaceoperations__research_1_1math__opt.html#ac4c49167100d15c4aa49b054c180c56d">ValidateModelSolveParameters</a>(model_parameters, model_summary_))</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  << <span class="stringliteral">"invalid model_parameters"</span>;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="classoperations__research_1_1math__opt_1_1_solver_interface.html#ab47a61ca53ae9cdf35dd4f2dfc9ecadb">SolverInterface::Callback</a> cb = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">if</span> (user_cb != <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="namespaceoperations__research_1_1math__opt.html#a7abc01bd247a24b76cd5e58d141c7219">ValidateCallbackRegistration</a>(callback_registration, model_summary_));</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  cb = [&](<span class="keyword">const</span> CallbackDataProto& callback_data)</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  -> absl::StatusOr<CallbackResultProto> {</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(<a class="code" href="namespaceoperations__research_1_1math__opt.html#a73642a8827dfec380f36678d0451730b">ValidateCallbackDataProto</a>(</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  callback_data, callback_registration, model_summary_));</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">auto</span> callback_result = user_cb(callback_data);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="code" href="namespaceoperations__research_1_1math__opt.html#a37e6d93b6f608edcfeb9c635c4f7b4bb">ValidateCallbackResultProto</a>(callback_result, callback_data.event(),</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  callback_registration, model_summary_));</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> callback_result;</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>  }</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <a class="code" href="status__macros_8h.html#a600de4b8f65fe0a4b1898041634f9011">ASSIGN_OR_RETURN</a>(<span class="keyword">const</span> SolveResultProto result,</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  underlying_solver_->Solve(<a class="code" href="classoperations__research_1_1_solver.html#a2a0b93a70f0d588f157ade7909c42eff">parameters</a>, model_parameters,</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  callback_registration, cb));</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// We consider errors in `result` to be internal errors, but</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="comment">// `ValidateResult()` will return an InvalidArgumentError. So here we convert</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="comment">// the error.</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(ToInternalError(</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <a class="code" href="namespaceoperations__research_1_1math__opt.html#a056d48c0fb340c225fc0dfe023b102d4">ValidateResult</a>(result, model_parameters, model_summary_)));</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordflow">return</span> result;</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> </div><div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="classoperations__research_1_1math__opt_1_1_solver.html#afab112ee215257b1dce7b7deab8c2406"> 156</a></span> absl::StatusOr<bool> Solver::Update(<span class="keyword">const</span> ModelUpdateProto& model_update) {</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(<a class="code" href="namespaceoperations__research_1_1math__opt.html#a140d4dcb13c7bce57fbded411ac905df">ValidateModelUpdateAndSummary</a>(model_update, model_summary_));</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">if</span> (!underlying_solver_->CanUpdate(model_update)) {</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  UpdateSummaryFromModelUpdate(model_update, model_summary_);</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(underlying_solver_->Update(model_update));</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</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> </div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> } <span class="comment">// namespace math_opt</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> } <span class="comment">// namespace operations_research</span></div><div class="ttc" id="base_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#l00495">base/logging.h:495</a></div></div>
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<div class="ttc" id="solver__parameters__validator_8h_html"><div class="ttname"><a href="solver__parameters__validator_8h.html">solver_parameters_validator.h</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_a7abc01bd247a24b76cd5e58d141c7219"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a7abc01bd247a24b76cd5e58d141c7219">operations_research::math_opt::ValidateCallbackRegistration</a></div><div class="ttdeci">absl::Status ValidateCallbackRegistration(const CallbackRegistrationProto &callback_registration, const ModelSummary &model_summary)</div><div class="ttdef"><b>Definition:</b> <a href="callback__validator_8cc_source.html#l00099">callback_validator.cc:99</a></div></div>
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<div class="ttc" id="classoperations__research_1_1_solver_html_abac10873a1af49f1dce33a34f3afaa56"><div class="ttname"><a href="classoperations__research_1_1_solver.html#abac10873a1af49f1dce33a34f3afaa56">operations_research::Solver::Solver</a></div><div class="ttdeci">Solver(const std::string &name)</div><div class="ttdoc">Solver API.</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solver_8cc_source.html#l01421">constraint_solver.cc:1421</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_a73642a8827dfec380f36678d0451730b"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a73642a8827dfec380f36678d0451730b">operations_research::math_opt::ValidateCallbackDataProto</a></div><div class="ttdeci">absl::Status ValidateCallbackDataProto(const CallbackDataProto &cb_data, const CallbackRegistrationProto &callback_registration, const ModelSummary &model_summary)</div><div class="ttdef"><b>Definition:</b> <a href="callback__validator_8cc_source.html#l00122">callback_validator.cc:122</a></div></div>
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<div class="ttc" id="default__search_8cc_html_ac673bc430bdc3fdaa09f7becf98ef267"><div class="ttname"><a href="default__search_8cc.html#ac673bc430bdc3fdaa09f7becf98ef267">name</a></div><div class="ttdeci">const std::string name</div><div class="ttdef"><b>Definition:</b> <a href="default__search_8cc_source.html#l00813">default_search.cc:813</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_ac4c49167100d15c4aa49b054c180c56d"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#ac4c49167100d15c4aa49b054c180c56d">operations_research::math_opt::ValidateModelSolveParameters</a></div><div class="ttdeci">absl::Status ValidateModelSolveParameters(const ModelSolveParametersProto &parameters, const ModelSummary &model_summary)</div><div class="ttdef"><b>Definition:</b> <a href="model__parameters__validator_8cc_source.html#l00048">model_parameters_validator.cc:48</a></div></div>
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<div class="ttc" id="gurobi__interface_8cc_html_a0728f23c9a47655d38e0bf1a2f200bcf"><div class="ttname"><a href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a></div><div class="ttdeci">GRBmodel * model</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__interface_8cc_source.html#l00274">gurobi_interface.cc:274</a></div></div>
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<div class="ttc" id="model__parameters__validator_8h_html"><div class="ttname"><a href="model__parameters__validator_8h.html">model_parameters_validator.h</a></div></div>
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<div class="ttc" id="integral__types_8h_html"><div class="ttname"><a href="integral__types_8h.html">integral_types.h</a></div></div>
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<div class="ttc" id="classoperations__research_1_1_solver_html_a2a0b93a70f0d588f157ade7909c42eff"><div class="ttname"><a href="classoperations__research_1_1_solver.html#a2a0b93a70f0d588f157ade7909c42eff">operations_research::Solver::parameters</a></div><div class="ttdeci">ConstraintSolverParameters parameters() const</div><div class="ttdoc">Stored Parameters.</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solver_8h_source.html#l00763">constraint_solver.h:763</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_a140d4dcb13c7bce57fbded411ac905df"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a140d4dcb13c7bce57fbded411ac905df">operations_research::math_opt::ValidateModelUpdateAndSummary</a></div><div class="ttdeci">absl::Status ValidateModelUpdateAndSummary(const ModelUpdateProto &model_update, const ModelSummary &model_summary, const bool check_names)</div><div class="ttdef"><b>Definition:</b> <a href="math__opt_2validators_2model__validator_8cc_source.html#l00298">math_opt/validators/model_validator.cc:298</a></div></div>
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<div class="ttc" id="classoperations__research_1_1math__opt_1_1_solver_html_ac3d73bcaa7a8494c030cfbd182a89f02"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_solver.html#ac3d73bcaa7a8494c030cfbd182a89f02">operations_research::math_opt::Solver::Solver</a></div><div class="ttdeci">Solver(const Solver &)=delete</div></div>
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<div class="ttc" id="solver_8h_html"><div class="ttname"><a href="solver_8h.html">solver.h</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_a056d48c0fb340c225fc0dfe023b102d4"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a056d48c0fb340c225fc0dfe023b102d4">operations_research::math_opt::ValidateResult</a></div><div class="ttdeci">absl::Status ValidateResult(const SolveResultProto &result, const ModelSolveParametersProto &parameters, const ModelSummary &model_summary)</div><div class="ttdef"><b>Definition:</b> <a href="solution__validator_8cc_source.html#l00043">solution_validator.cc:43</a></div></div>
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<div class="ttc" id="base_2logging_8h_html"><div class="ttname"><a href="base_2logging_8h.html">logging.h</a></div></div>
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<div class="ttc" id="model__summary_8h_html"><div class="ttname"><a href="model__summary_8h.html">model_summary.h</a></div></div>
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<div class="ttc" id="classoperations__research_1_1math__opt_1_1_solver_html_acc33a9824afffd1de1d7c85906c5fd31"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_solver.html#acc33a9824afffd1de1d7c85906c5fd31">operations_research::math_opt::Solver::Callback</a></div><div class="ttdeci">std::function< CallbackResultProto(const CallbackDataProto &)> Callback</div><div class="ttdef"><b>Definition:</b> <a href="solver_8h_source.html#l00061">solver.h:61</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_ab91fc238b75cc4908d380a32876551e9"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#ab91fc238b75cc4908d380a32876551e9">operations_research::math_opt::ValidateSolverParameters</a></div><div class="ttdeci">absl::Status ValidateSolverParameters(const SolveParametersProto &parameters)</div><div class="ttdef"><b>Definition:</b> <a href="solver__parameters__validator_8cc_source.html#l00029">solver_parameters_validator.cc:29</a></div></div>
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<div class="ttc" id="solution__validator_8h_html"><div class="ttname"><a href="solution__validator_8h.html">solution_validator.h</a></div></div>
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<div class="ttc" id="classoperations__research_1_1math__opt_1_1_solver_interface_html_ab47a61ca53ae9cdf35dd4f2dfc9ecadb"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_solver_interface.html#ab47a61ca53ae9cdf35dd4f2dfc9ecadb">operations_research::math_opt::SolverInterface::Callback</a></div><div class="ttdeci">std::function< absl::StatusOr< CallbackResultProto >(const CallbackDataProto &)> Callback</div><div class="ttdef"><b>Definition:</b> <a href="solver__interface_8h_source.html#l00055">solver_interface.h:55</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_a37e6d93b6f608edcfeb9c635c4f7b4bb"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a37e6d93b6f608edcfeb9c635c4f7b4bb">operations_research::math_opt::ValidateCallbackResultProto</a></div><div class="ttdeci">absl::Status ValidateCallbackResultProto(const CallbackResultProto &callback_result, const CallbackEventProto callback_event, const CallbackRegistrationProto &callback_registration, const ModelSummary &model_summary)</div><div class="ttdef"><b>Definition:</b> <a href="callback__validator_8cc_source.html#l00252">callback_validator.cc:252</a></div></div>
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<div class="ttc" id="status__macros_8h_html"><div class="ttname"><a href="status__macros_8h.html">status_macros.h</a></div></div>
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<div class="ttc" id="callback__validator_8h_html"><div class="ttname"><a href="callback__validator_8h.html">callback_validator.h</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_af039565f98410c47887cc13d5dbdd31b"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#af039565f98410c47887cc13d5dbdd31b">operations_research::math_opt::ValidateModel</a></div><div class="ttdeci">absl::Status ValidateModel(const ModelProto &model, const bool check_names)</div><div class="ttdef"><b>Definition:</b> <a href="math__opt_2validators_2model__validator_8cc_source.html#l00251">math_opt/validators/model_validator.cc:251</a></div></div>
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<div class="ttc" id="namespaceoperations__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>
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<div class="ttc" id="math__opt_2validators_2model__validator_8h_html"><div class="ttname"><a href="math__opt_2validators_2model__validator_8h.html">model_validator.h</a></div></div>
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<div class="ttc" id="cp__model__fz__solver_8cc_html_a10a1eab179b472c030bdc2a2efef7219"><div class="ttname"><a href="cp__model__fz__solver_8cc.html#a10a1eab179b472c030bdc2a2efef7219">parameters</a></div><div class="ttdeci">SatParameters parameters</div><div class="ttdef"><b>Definition:</b> <a href="cp__model__fz__solver_8cc_source.html#l00120">cp_model_fz_solver.cc:120</a></div></div>
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<div class="ttc" id="status__macros_8h_html_acdc223d8c59d5c591dc6b4e88257627b"><div class="ttname"><a href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a></div><div class="ttdeci">#define RETURN_IF_ERROR(expr)</div><div class="ttdef"><b>Definition:</b> <a href="status__macros_8h_source.html#l00029">status_macros.h:29</a></div></div>
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<div class="ttc" id="solver__interface_8h_html"><div class="ttname"><a href="solver__interface_8h.html">solver_interface.h</a></div></div>
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<div class="ttc" id="classoperations__research_1_1_solver_html_a946780dfafc8faa3dd2d345850213be5"><div class="ttname"><a href="classoperations__research_1_1_solver.html#a946780dfafc8faa3dd2d345850213be5">operations_research::Solver::Solve</a></div><div class="ttdeci">bool Solve(DecisionBuilder *const db, const std::vector< SearchMonitor * > &monitors)</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solver_8cc_source.html#l01797">constraint_solver.cc:1797</a></div></div>
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