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<h2>C++ Reference</h2>
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<li><a href="../cpp_algorithms/annotated.html">Algorithms</a></li>
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<li><a href="../cpp_sat/annotated.html">CP-SAT</a></li>
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<h1 style="color: #145A32;">C++ Reference: Linear solver</h1>
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<div class="title">model_validator.h</div> </div>
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<a href="model__validator_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Copyright 2010-2018 Google LLC</span></div>
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<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>
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<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>
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<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>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div>
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<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>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div>
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<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>
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<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>
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<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>
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<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>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// limitations under the License.</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#ifndef OR_TOOLS_LINEAR_SOLVER_MODEL_VALIDATOR_H_</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#define OR_TOOLS_LINEAR_SOLVER_MODEL_VALIDATOR_H_</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>  </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <string></span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  </div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "absl/types/optional.h"</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include "<a class="code" href="linear__solver_8pb_8h.html">ortools/linear_solver/linear_solver.pb.h</a>"</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include "ortools/util/lazy_mutable_copy.h"</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  </div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">namespace </span><a class="code" href="namespaceoperations__research.html">operations_research</a> {</div>
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<div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="namespaceoperations__research.html#ae487f6dd2563face74a7618e70397537"> 37</a></span> std::string <a class="code" href="namespaceoperations__research.html#ae487f6dd2563face74a7618e70397537">FindErrorInMPModelProto</a>(<span class="keyword">const</span> MPModelProto& model,</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">double</span> abs_value_threshold = 0.0);</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
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<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="namespaceoperations__research.html#a2506c50d4eb5505613003f685fd1af9f"> 46</a></span> std::string <a class="code" href="namespaceoperations__research.html#a2506c50d4eb5505613003f685fd1af9f">FindErrorInMPModelDeltaProto</a>(<span class="keyword">const</span> MPModelDeltaProto& delta,</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">const</span> MPModelProto& model);</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  </div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> absl::optional<LazyMutableCopy<MPModelProto>></div>
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<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="namespaceoperations__research.html#a9ea9cebfb356f7781724405eea08e7f4"> 54</a></span> <a class="code" href="namespaceoperations__research.html#a9ea9cebfb356f7781724405eea08e7f4">ExtractValidMPModelOrPopulateResponseStatus</a>(<span class="keyword">const</span> MPModelRequest& request,</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  MPSolutionResponse* response);</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
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<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="namespaceoperations__research.html#a518848a6b3e172d127121637ab5c608d"> 62</a></span> <span class="keywordtype">bool</span> <a class="code" href="namespaceoperations__research.html#a518848a6b3e172d127121637ab5c608d">ExtractValidMPModelInPlaceOrPopulateResponseStatus</a>(</div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  MPModelRequest* request, MPSolutionResponse* response);</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  </div>
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<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="namespaceoperations__research.html#ae4ee4d82cf625670cdc1f52197454654"> 75</a></span> std::string <a class="code" href="namespaceoperations__research.html#ae4ee4d82cf625670cdc1f52197454654">FindFeasibilityErrorInSolutionHint</a>(<span class="keyword">const</span> MPModelProto& model,</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordtype">double</span> tolerance);</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  </div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// Partially merges a MPConstraintProto onto another, skipping only the</span></div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment">// repeated fields "var_index" and "coefficients". This is used within</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment">// FindErrorInMPModelDeltaProto.</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">// See the unit test MergeMPConstraintProtoExceptTermsTest that explains why we</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// need this.</span></div>
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<div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="namespaceoperations__research.html#ae6841e1b78c89cf9139fc1b9ba1ae8cb"> 83</a></span> <span class="keywordtype">void</span> <a class="code" href="namespaceoperations__research.html#ae6841e1b78c89cf9139fc1b9ba1ae8cb">MergeMPConstraintProtoExceptTerms</a>(<span class="keyword">const</span> MPConstraintProto& from,</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  MPConstraintProto* to);</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment">// PUBLIC FOR TESTING ONLY.</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment">// Applies the given model_delta to "model". Assumes that</span></div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment">// FindErrorInMPModelDeltaProto() found no error.</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="namespaceoperations__research.html#a3ed9bad79131000a00e7f01a5f5b824c"> 89</a></span> <span class="keywordtype">void</span> <a class="code" href="namespaceoperations__research.html#a3ed9bad79131000a00e7f01a5f5b824c">ApplyVerifiedMPModelDelta</a>(<span class="keyword">const</span> MPModelDeltaProto& delta,</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  MPModelProto* model);</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  </div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> } <span class="comment">// namespace operations_research</span></div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  </div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor">#endif // OR_TOOLS_LINEAR_SOLVER_MODEL_VALIDATOR_H_</span></div>
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</div><!-- fragment --></div><!-- contents -->
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<div class="ttc" id="anamespaceoperations__research_html_a9ea9cebfb356f7781724405eea08e7f4"><div class="ttname"><a href="namespaceoperations__research.html#a9ea9cebfb356f7781724405eea08e7f4">operations_research::ExtractValidMPModelOrPopulateResponseStatus</a></div><div class="ttdeci">absl::optional< LazyMutableCopy< MPModelProto > > ExtractValidMPModelOrPopulateResponseStatus(const MPModelRequest &request, MPSolutionResponse *response)</div><div class="ttdoc">If the model is valid and non-empty, returns it (possibly after extracting the model_delta).</div></div>
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<div class="ttc" id="anamespaceoperations__research_html_ae487f6dd2563face74a7618e70397537"><div class="ttname"><a href="namespaceoperations__research.html#ae487f6dd2563face74a7618e70397537">operations_research::FindErrorInMPModelProto</a></div><div class="ttdeci">std::string FindErrorInMPModelProto(const MPModelProto &model, double abs_value_threshold=0.0)</div><div class="ttdoc">Returns an empty string iff the model is valid and not trivially infeasible.</div></div>
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<div class="ttc" id="anamespaceoperations__research_html_a2506c50d4eb5505613003f685fd1af9f"><div class="ttname"><a href="namespaceoperations__research.html#a2506c50d4eb5505613003f685fd1af9f">operations_research::FindErrorInMPModelDeltaProto</a></div><div class="ttdeci">std::string FindErrorInMPModelDeltaProto(const MPModelDeltaProto &delta, const MPModelProto &model)</div><div class="ttdoc">Like FindErrorInMPModelProto, but for a MPModelDeltaProto applied to a given baseline model (assumed ...</div></div>
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<div class="ttc" id="alinear__solver_8pb_8h_html"><div class="ttname"><a href="linear__solver_8pb_8h.html">linear_solver.pb.h</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_ae6841e1b78c89cf9139fc1b9ba1ae8cb"><div class="ttname"><a href="namespaceoperations__research.html#ae6841e1b78c89cf9139fc1b9ba1ae8cb">operations_research::MergeMPConstraintProtoExceptTerms</a></div><div class="ttdeci">void MergeMPConstraintProtoExceptTerms(const MPConstraintProto &from, MPConstraintProto *to)</div></div>
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<div class="ttc" id="anamespaceoperations__research_html"><div class="ttname"><a href="namespaceoperations__research.html">operations_research</a></div><div class="ttdef"><b>Definition:</b> <a href="linear__expr_8h_source.html#l00084">linear_expr.h:84</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html_a3ed9bad79131000a00e7f01a5f5b824c"><div class="ttname"><a href="namespaceoperations__research.html#a3ed9bad79131000a00e7f01a5f5b824c">operations_research::ApplyVerifiedMPModelDelta</a></div><div class="ttdeci">void ApplyVerifiedMPModelDelta(const MPModelDeltaProto &delta, MPModelProto *model)</div></div>
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<div class="ttc" id="anamespaceoperations__research_html_a518848a6b3e172d127121637ab5c608d"><div class="ttname"><a href="namespaceoperations__research.html#a518848a6b3e172d127121637ab5c608d">operations_research::ExtractValidMPModelInPlaceOrPopulateResponseStatus</a></div><div class="ttdeci">bool ExtractValidMPModelInPlaceOrPopulateResponseStatus(MPModelRequest *request, MPSolutionResponse *response)</div><div class="ttdoc">Like ExtractValidMPModelOrPopulateResponseStatus(), but works in-place: if the MPModel needed extract...</div></div>
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<div class="ttc" id="anamespaceoperations__research_html_ae4ee4d82cf625670cdc1f52197454654"><div class="ttname"><a href="namespaceoperations__research.html#ae4ee4d82cf625670cdc1f52197454654">operations_research::FindFeasibilityErrorInSolutionHint</a></div><div class="ttdeci">std::string FindFeasibilityErrorInSolutionHint(const MPModelProto &model, double tolerance)</div><div class="ttdoc">Returns an empty string if the solution hint given in the model is a feasible solution.</div></div>
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