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<a href="gurobi__callback_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="gurobi__callback_8h.html">ortools/math_opt/solvers/gurobi_callback.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 <cstdint></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <functional></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <limits></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <string></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <utility></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <vector></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="base_2logging_8h.html">ortools/base/logging.h</a>"</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "absl/container/flat_hash_set.h"</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "absl/status/status.h"</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "absl/status/statusor.h"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "absl/strings/str_cat.h"</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "absl/time/clock.h"</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "absl/time/time.h"</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include "absl/types/optional.h"</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include "absl/types/span.h"</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include "<a class="code" href="linked__hash__map_8h.html">ortools/base/linked_hash_map.h</a>"</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include "ortools/math_opt/callback.pb.h"</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "<a class="code" href="math__opt__proto__utils_8h.html">ortools/math_opt/core/math_opt_proto_utils.h</a>"</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</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="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "<a class="code" href="sparse__vector__view_8h.html">ortools/math_opt/core/sparse_vector_view.h</a>"</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "ortools/math_opt/solution.pb.h"</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include "<a class="code" href="message__callback__data_8h.html">ortools/math_opt/solvers/message_callback_data.h</a>"</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include "ortools/math_opt/sparse_containers.pb.h"</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</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="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include "<a class="code" href="protoutil_8h.html">ortools/base/protoutil.h</a>"</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#include "<a class="code" href="environment_8h.html">ortools/gurobi/environment.h</a>"</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">namespace </span><a class="code" href="namespaceoperations__research.html">operations_research</a> {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">namespace </span>math_opt {</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="comment">// The number of possible values for "where" that Gurobi's callbacks can stop</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment">// at, see the table here:</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment">// https://www.gurobi.com/documentation/9.1/refman/cb_codes.html</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> constexpr <span class="keywordtype">int</span> kNumGurobiEvents = 9;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> constexpr <span class="keywordtype">int</span> kGrbOk = 0;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> constexpr <span class="keywordtype">double</span> <a class="code" href="namespaceoperations__research_1_1math__opt.html#ad9f50c9313b35cc1e8887057dc4d9645">kInf</a> = std::numeric_limits<double>::infinity();</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">template</span> <<span class="keywordtype">int</span> where></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> constexpr <span class="keywordtype">int</span> CheckedGuroibWhere() {</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  static_assert(<a class="code" href="gurobi__interface_8cc.html#a675dd47bbf0a66c9cb592047797a6d69">where</a> >= 0 && <a class="code" href="gurobi__interface_8cc.html#a675dd47bbf0a66c9cb592047797a6d69">where</a> < kNumGurobiEvents);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">return</span> <a class="code" href="gurobi__interface_8cc.html#a675dd47bbf0a66c9cb592047797a6d69">where</a>;</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="keyword">inline</span> <span class="keywordtype">int</span> GurobiEvent(CallbackEventProto event) {</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">switch</span> (event) {</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">case</span> CALLBACK_EVENT_POLLING:</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> CheckedGuroibWhere<GRB_CB_POLLING>();</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">case</span> CALLBACK_EVENT_PRESOLVE:</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> CheckedGuroibWhere<GRB_CB_PRESOLVE>();</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">case</span> CALLBACK_EVENT_SIMPLEX:</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">return</span> CheckedGuroibWhere<GRB_CB_SIMPLEX>();</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">case</span> CALLBACK_EVENT_MIP:</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">return</span> CheckedGuroibWhere<GRB_CB_MIP>();</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">case</span> CALLBACK_EVENT_MIP_SOLUTION:</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> CheckedGuroibWhere<GRB_CB_MIPSOL>();</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">case</span> CALLBACK_EVENT_MIP_NODE:</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> CheckedGuroibWhere<GRB_CB_MIPNODE>();</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">case</span> CALLBACK_EVENT_BARRIER:</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">return</span> CheckedGuroibWhere<GRB_CB_BARRIER>();</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">case</span> CALLBACK_EVENT_MESSAGE:</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span> CheckedGuroibWhere<GRB_CB_MESSAGE>();</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">case</span> CALLBACK_EVENT_UNSPECIFIED:</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</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">"Unexpected callback event: "</span> << event;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</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> absl::Status GurobiStatus(<a class="code" href="environment_8h.html#a865e461c79c88bc5c0d5f56087ae4876">GRBmodel</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>, <span class="keywordtype">int</span> error_code) {</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">if</span> (error_code == kGrbOk) {</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> absl::OkStatus();</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="environment_8h.html#a2963ba0c46b86ac4680fb3bb4ca8b2f3">GRBenv</a>* <span class="keyword">const</span> env = <a class="code" href="namespaceoperations__research.html#a7107d55540a5ebdf66762aa4ee42e404">GRBgetenv</a>(<a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">return</span> absl::InternalError(</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  absl::StrCat(<span class="stringliteral">"Gurobi error "</span>, error_code, <span class="stringliteral">": "</span>, <a class="code" href="namespaceoperations__research.html#a6e3a7ab84a516ee67eb78d50ac3987e2">GRBgeterrormsg</a>(env)));</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> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> SparseDoubleVectorProto ApplyFilter(</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keyword">const</span> std::vector<double>& grb_solution,</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">const</span> <a class="code" href="classgtl_1_1linked__hash__map.html">gtl::linked_hash_map<int64_t, int></a>& var_ids,</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">const</span> SparseVectorFilterProto& filter) {</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  SparseVectorFilterPredicate predicate(filter);</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  SparseDoubleVectorProto result;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> [<span class="keywordtype">id</span>, grb_index] : var_ids) {</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> val = grb_solution[grb_index];</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span> (predicate.AcceptsAndUpdate(<span class="keywordtype">id</span>, val)) {</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  result.add_ids(<span class="keywordtype">id</span>);</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  result.add_values(val);</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>  }</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</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="keyword">class </span>GurobiCallbackContext {</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  GurobiCallbackContext(<a class="code" href="environment_8h.html#a865e461c79c88bc5c0d5f56087ae4876">GRBmodel</a>* <a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>, <span class="keywordtype">void</span>* cbdata, <span class="keywordtype">int</span> <a class="code" href="gurobi__interface_8cc.html#a675dd47bbf0a66c9cb592047797a6d69">where</a>)</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  : model_(<a class="code" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>), cbdata_(cbdata), where_(<a class="code" href="gurobi__interface_8cc.html#a675dd47bbf0a66c9cb592047797a6d69">where</a>) {}</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  absl::StatusOr<int> get_int(<span class="keywordtype">int</span> what)<span class="keyword"> const </span>{</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordtype">int</span> result;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(AsStatus(<a class="code" href="namespaceoperations__research.html#a47dfe898be4c2a59df528e39e96d0798">GRBcbget</a>(cbdata_, where_, what, &result)));</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</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>  absl::StatusOr<double> get_double(<span class="keywordtype">int</span> what)<span class="keyword"> const </span>{</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordtype">double</span> result;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(AsStatus(<a class="code" href="namespaceoperations__research.html#a47dfe898be4c2a59df528e39e96d0798">GRBcbget</a>(cbdata_, where_, what, &result)));</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> result;</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> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  absl::StatusOr<int64_t> get_int64(<span class="keywordtype">int</span> what)<span class="keyword"> const </span>{</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordtype">double</span> result;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(AsStatus(<a class="code" href="namespaceoperations__research.html#a47dfe898be4c2a59df528e39e96d0798">GRBcbget</a>(cbdata_, where_, what, &result)));</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  int64_t result64 = static_cast<int64_t>(result);</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">if</span> (result != static_cast<double>(result64)) {</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">return</span> absl::InternalError(</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  absl::StrCat(<span class="stringliteral">"Error converting double attribute: "</span>, what,</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="stringliteral">"with value: "</span>, result, <span class="stringliteral">" to int64_t exactly."</span>));</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  }</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">return</span> result64;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  }</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  absl::StatusOr<bool> get_bool(<span class="keywordtype">int</span> what)<span class="keyword"> const </span>{</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordtype">int</span> result;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(AsStatus(<a class="code" href="namespaceoperations__research.html#a47dfe898be4c2a59df528e39e96d0798">GRBcbget</a>(cbdata_, where_, what, &result)));</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordtype">bool</span> result_bool = static_cast<bool>(result);</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">if</span> (result != static_cast<int>(result_bool)) {</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">return</span> absl::InternalError(</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  absl::StrCat(<span class="stringliteral">"Error converting int attribute: "</span>, what,</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="stringliteral">"with value: "</span>, result, <span class="stringliteral">" to bool exactly."</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="keywordflow">return</span> result_bool;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  }</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  absl::StatusOr<std::string> get_string(<span class="keywordtype">int</span> what)<span class="keyword"> const </span>{</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordtype">char</span>* result;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(AsStatus(<a class="code" href="namespaceoperations__research.html#a47dfe898be4c2a59df528e39e96d0798">GRBcbget</a>(cbdata_, where_, what, &result)));</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  }</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// The output argument doubles_out will be modified, it is the callers</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">// responsibility to ensure that it is large enough.</span></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  absl::Status get_doubles(<span class="keywordtype">int</span> what, absl::Span<double> doubles_out)<span class="keyword"> const </span>{</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordtype">double</span>* <span class="keyword">const</span> first = doubles_out.data();</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>(AsStatus(<a class="code" href="namespaceoperations__research.html#a47dfe898be4c2a59df528e39e96d0798">GRBcbget</a>(cbdata_, where_, what, first)));</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">return</span> absl::OkStatus();</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>  <a class="code" href="environment_8h.html#a865e461c79c88bc5c0d5f56087ae4876">GRBmodel</a>* grb_model()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> model_; }</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordtype">int</span> <a class="code" href="gurobi__interface_8cc.html#a675dd47bbf0a66c9cb592047797a6d69">where</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> where_; }</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  absl::Status AddConstraint(absl::Span<const int> vars,</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  absl::Span<const double> coefs, <span class="keywordtype">char</span> sense,</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordtype">double</span> rhs, <span class="keywordtype">bool</span> is_lazy)<span class="keyword"> const </span>{</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">auto</span> cut_fn = is_lazy ? &<a class="code" href="namespaceoperations__research.html#a33d1abd321c8db939e166390ac01cc1e">GRBcblazy</a> : &<a class="code" href="namespaceoperations__research.html#ae34339d979ba0033f7e47a88913e2d60">GRBcbcut</a>;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">return</span> AsStatus((*cut_fn)(cbdata_, vars.size(), vars.begin(), coefs.begin(),</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  sense, rhs));</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  absl::StatusOr<double> SuggestSolution(absl::Span<const double> coefs)<span class="keyword"> const </span>{</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordtype">double</span> obj_value;</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  AsStatus(<a class="code" href="namespaceoperations__research.html#ab4617e07ad4b1c37b128c99095da1bd1">GRBcbsolution</a>(cbdata_, coefs.begin(), &obj_value)));</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">return</span> obj_value;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  }</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  absl::Status AsStatus(<span class="keywordtype">int</span> error_code)<span class="keyword"> const </span>{</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">return</span> GurobiStatus(model_, error_code);</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <a class="code" href="environment_8h.html#a865e461c79c88bc5c0d5f56087ae4876">GRBmodel</a>* <span class="keyword">const</span> model_;</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordtype">void</span>* <span class="keyword">const</span> cbdata_;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> where_;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> };</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="comment">// Invokes setter on a non-error value in statusor or returns the error.</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment">//</span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment">// Requires that statusor is a StatusOr<T> and setter(T) is a function.</span></div><div class="line"><a name="l00197"></a><span class="lineno"><a class="line" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9"> 197</a></span> <span class="preprocessor">#define MO_SET_OR_RET(setter, statusor) \</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="preprocessor"> do { \</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="preprocessor"> auto eval_status_or = statusor; \</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="preprocessor"> RETURN_IF_ERROR(eval_status_or.status()) << __FILE__ << ":" << __LINE__; \</span></div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="preprocessor"> setter(*std::move(eval_status_or)); \</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="preprocessor"> } while (false)</span></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">// Sets the CallbackDataProto.runtime field using the difference between the</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="comment">// current wall clock time and the start time of the solve.</span></div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> absl::Status SetRuntime(<span class="keyword">const</span> GurobiCallbackInput& callback_input,</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  CallbackDataProto& callback_data) {</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceutil__time.html#ac1935e49a14ae747b6ee76804b52bf70">util_time::EncodeGoogleApiProto</a>(absl::Now() - callback_input.start,</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  callback_data.mutable_runtime());</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> </div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="comment">// Returns the data for the next callback. Returns nullopt if no callback is</span></div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="comment">// needed.</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> absl::StatusOr<absl::optional<CallbackDataProto>> CreateCallbackDataProto(</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keyword">const</span> GurobiCallbackContext& c, <span class="keyword">const</span> GurobiCallbackInput& callback_input,</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  MessageCallbackData& message_callback_data) {</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  CallbackDataProto callback_data;</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>  <span class="comment">// Query information from Gurobi.</span></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">switch</span> (c.where()) {</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">case</span> <a class="code" href="environment_8h.html#abb3f655e9eb74e37fbf2d11cb0efad5d">GRB_CB_POLLING</a>: {</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  callback_data.set_event(CALLBACK_EVENT_POLLING);</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  }</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">case</span> <a class="code" href="environment_8h.html#a89b0c088ac628a567b841f57a21abed8">GRB_CB_PRESOLVE</a>: {</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  callback_data.set_event(CALLBACK_EVENT_PRESOLVE);</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  CallbackDataProto::PresolveStats* <span class="keyword">const</span> s =</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  callback_data.mutable_presolve_stats();</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_removed_variables, c.get_int(<a class="code" href="environment_8h.html#aee119d240dfbc49a883d6982dd0ca6c0">GRB_CB_PRE_COLDEL</a>));</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_removed_constraints, c.get_int(<a class="code" href="environment_8h.html#a862afbb0b31942b06b8aa484e608bb88">GRB_CB_PRE_ROWDEL</a>));</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_bound_changes, c.get_int(<a class="code" href="environment_8h.html#afc51a68ce211063bb39fc5adeb3b246e">GRB_CB_PRE_BNDCHG</a>));</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_coefficient_changes, c.get_int(<a class="code" href="environment_8h.html#a216078c95dd7668ccf40473b18cb2875">GRB_CB_PRE_COECHG</a>));</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">break</span>;</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>  <span class="keywordflow">case</span> <a class="code" href="environment_8h.html#a52444d4642a70bdfb1ffa1e3f120f4ec">GRB_CB_SIMPLEX</a>: {</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  callback_data.set_event(CALLBACK_EVENT_SIMPLEX);</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  CallbackDataProto::SimplexStats* <span class="keyword">const</span> s =</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  callback_data.mutable_simplex_stats();</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_iteration_count, c.get_int64(<a class="code" href="environment_8h.html#a5ea7c11f22bfc615f86e6a521f180f4e">GRB_CB_SPX_ITRCNT</a>));</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_is_pertubated, c.get_bool(<a class="code" href="environment_8h.html#a0783657775ee5a8817210723e6dcde5d">GRB_CB_SPX_ISPERT</a>));</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_objective_value, c.get_double(<a class="code" href="environment_8h.html#a12cb4410aa88188b674ee17b1c8eb56a">GRB_CB_SPX_OBJVAL</a>));</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_primal_infeasibility,</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  c.get_double(<a class="code" href="environment_8h.html#a3f6cbfdaa931fe6caab33877bdc35365">GRB_CB_SPX_PRIMINF</a>));</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_dual_infeasibility,</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  c.get_double(<a class="code" href="environment_8h.html#aadb066f9ac42c966161a37cb203f660c">GRB_CB_SPX_DUALINF</a>));</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">case</span> <a class="code" href="environment_8h.html#a1839c94e6deb4c80e8acf5b78a7937fc">GRB_CB_BARRIER</a>: {</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  callback_data.set_event(CALLBACK_EVENT_BARRIER);</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  CallbackDataProto::BarrierStats* <span class="keyword">const</span> s =</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  callback_data.mutable_barrier_stats();</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_iteration_count, c.get_int(<a class="code" href="environment_8h.html#ac2390d3fd6af6a4f5b06ddb5f0b1c2fd">GRB_CB_BARRIER_ITRCNT</a>));</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_primal_objective,</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  c.get_double(<a class="code" href="environment_8h.html#a873bcb8a6197c38d2606da66f98b23cc">GRB_CB_BARRIER_PRIMOBJ</a>));</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_dual_objective,</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  c.get_double(<a class="code" href="environment_8h.html#ae4ba27ca9e466f748aa2d24e168cbaff">GRB_CB_BARRIER_DUALOBJ</a>));</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_primal_infeasibility,</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  c.get_double(<a class="code" href="environment_8h.html#af8fb3672cf50fed4941b2864e5cba6aa">GRB_CB_BARRIER_PRIMINF</a>));</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_dual_infeasibility,</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  c.get_double(<a class="code" href="environment_8h.html#abc54b7dd805b6382185a462eb375fb96">GRB_CB_BARRIER_DUALINF</a>));</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_complementarity, c.get_double(<a class="code" href="environment_8h.html#a6b625c77f2bd8978dffdf12653feb52d">GRB_CB_BARRIER_COMPL</a>));</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">case</span> <a class="code" href="environment_8h.html#ac43c2cbdae9008fbe1b6a81d9b4694a8">GRB_CB_MESSAGE</a>: {</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keyword">const</span> absl::StatusOr<std::string> msg = c.get_string(<a class="code" href="environment_8h.html#a2d16f1495c5684c153147246fa4f5699">GRB_CB_MSG_STRING</a>);</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(msg.status())</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  << <span class="stringliteral">"Error getting message string in callback"</span>;</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  absl::optional<CallbackDataProto> message_data =</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  message_callback_data.Parse(*msg);</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">if</span> (!message_data) {</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment">// We don't generate any callback when there is no message.</span></div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordflow">return</span> absl::nullopt;</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  }</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  callback_data = std::move(*message_data);</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  }</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keywordflow">case</span> <a class="code" href="environment_8h.html#aab6ab7165db7d2c53281d91bdf208f6f">GRB_CB_MIP</a>: {</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  callback_data.set_event(CALLBACK_EVENT_MIP);</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  CallbackDataProto::MipStats* <span class="keyword">const</span> s = callback_data.mutable_mip_stats();</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_primal_bound, c.get_double(<a class="code" href="environment_8h.html#ab5301e67ade13781e2ef8e6b8eabe34d">GRB_CB_MIP_OBJBST</a>));</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_dual_bound, c.get_double(<a class="code" href="environment_8h.html#af732ff9c46396ddcc5d077b7aa5bac29">GRB_CB_MIP_OBJBND</a>));</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_explored_nodes, c.get_int64(<a class="code" href="environment_8h.html#af01b3c420d61b98df6e5ab0f12728d73">GRB_CB_MIP_NODCNT</a>));</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_open_nodes, c.get_int64(<a class="code" href="environment_8h.html#a05bce41f4273c2b48573cafdd7e4a39f">GRB_CB_MIP_NODLFT</a>));</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_simplex_iterations, c.get_int64(<a class="code" href="environment_8h.html#a3712448e74823009d14db17d714ecf02">GRB_CB_MIP_ITRCNT</a>));</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_number_of_solutions_found,</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  c.get_int(<a class="code" href="environment_8h.html#aeb7dbaa0117de43deb56e7c6b6b76f5a">GRB_CB_MIP_SOLCNT</a>));</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_cutting_planes_in_lp, c.get_int(<a class="code" href="environment_8h.html#aca5fbc9811d563a8610ebc97cb888c0d">GRB_CB_MIP_CUTCNT</a>));</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  }</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordflow">case</span> <a class="code" href="environment_8h.html#a0a5caff77126a575cb1c3136c78ea5e6">GRB_CB_MIPSOL</a>: {</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  callback_data.set_event(CALLBACK_EVENT_MIP_SOLUTION);</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  CallbackDataProto::MipStats* <span class="keyword">const</span> s = callback_data.mutable_mip_stats();</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_primal_bound, c.get_double(<a class="code" href="environment_8h.html#a33b25740bb9ccb109a9942ced348a001">GRB_CB_MIPSOL_OBJBST</a>));</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_dual_bound, c.get_double(<a class="code" href="environment_8h.html#af53039f8b797e2f4196d5227a0fc5e6e">GRB_CB_MIPSOL_OBJBND</a>));</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_explored_nodes, c.get_int64(<a class="code" href="environment_8h.html#a6d9cf52eabffeae7e6a9a96196518f68">GRB_CB_MIPSOL_NODCNT</a>));</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_number_of_solutions_found,</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  c.get_int(<a class="code" href="environment_8h.html#a3a5593327e020154004dc62aba54b763">GRB_CB_MIPSOL_SOLCNT</a>));</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  std::vector<double> var_values(callback_input.num_gurobi_vars);</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  c.get_doubles(<a class="code" href="environment_8h.html#af4b792d08f1ac5f7878f80eaf432df48">GRB_CB_MIPSOL_SOL</a>, absl::MakeSpan(var_values)))</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  << <span class="stringliteral">"Error reading solution at event MIP_SOLUTION"</span>;</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  PrimalSolutionProto* <span class="keyword">const</span> solution =</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  callback_data.mutable_primal_solution();</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  *solution->mutable_variable_values() =</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  ApplyFilter(var_values, callback_input.variable_ids,</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  callback_input.mip_solution_filter);</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(solution->set_objective_value,</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  c.get_double(<a class="code" href="environment_8h.html#aa5fecfa80463d338f39d7038d3db6d8c">GRB_CB_MIPSOL_OBJ</a>));</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">break</span>;</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>  <span class="keywordflow">case</span> <a class="code" href="environment_8h.html#ab615ac552ba7202f8912556da65f22e0">GRB_CB_MIPNODE</a>: {</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  callback_data.set_event(CALLBACK_EVENT_MIP_NODE);</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  CallbackDataProto::MipStats* <span class="keyword">const</span> s = callback_data.mutable_mip_stats();</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_primal_bound, c.get_double(<a class="code" href="environment_8h.html#a55c9d1c074cfd4ddc378cf03c0281b7a">GRB_CB_MIPNODE_OBJBST</a>));</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_dual_bound, c.get_double(<a class="code" href="environment_8h.html#a4d584a9335fb167ec95d022a741b6e11">GRB_CB_MIPNODE_OBJBND</a>));</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_explored_nodes, c.get_int64(<a class="code" href="environment_8h.html#aff582a5106fb7b0af23d2e76c81e664e">GRB_CB_MIPNODE_NODCNT</a>));</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <a class="code" href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a>(s->set_number_of_solutions_found,</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  c.get_int(<a class="code" href="environment_8h.html#a912489cd8b988c36cd55b2e8a9d0c27b">GRB_CB_MIPNODE_SOLCNT</a>));</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keyword">const</span> absl::StatusOr<int> grb_status = c.get_int(<a class="code" href="environment_8h.html#a6f9cab1c3a4ef170a32b76fa5616b05e">GRB_CB_MIPNODE_STATUS</a>);</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(grb_status.status())</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  << <span class="stringliteral">"Error reading solution status at event MIP_NODE"</span>;</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">if</span> (*grb_status == <a class="code" href="environment_8h.html#a43d3b5140bdab02bbc8fff16b910b854">GRB_OPTIMAL</a>) {</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  std::vector<double> var_values(callback_input.num_gurobi_vars);</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  c.get_doubles(<a class="code" href="environment_8h.html#a4afc9caa8d78d2754061f82919d3ee58">GRB_CB_MIPNODE_REL</a>, absl::MakeSpan(var_values)))</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  << <span class="stringliteral">"Error reading solution at event MIP_NODE"</span>;</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  *callback_data.mutable_primal_solution()->mutable_variable_values() =</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  ApplyFilter(var_values, callback_input.variable_ids,</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  callback_input.mip_node_filter);</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// Note: Gurobi does not offer an objective value for the LP relaxation.</span></div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  }</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  }</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</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 gurobi callback code "</span> << c.where();</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  }</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> </div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(SetRuntime(callback_input, callback_data))</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  << <span class="stringliteral">"Error encoding runtime at callback event: "</span> << c.where();</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">return</span> callback_data;</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> }</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> </div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="preprocessor">#undef MO_SET_OR_RET</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> absl::Status ApplyResult(<span class="keyword">const</span> GurobiCallbackContext& <a class="code" href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a>,</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keyword">const</span> GurobiCallbackInput& callback_input,</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keyword">const</span> CallbackResultProto& result) {</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> CallbackResultProto::GeneratedLinearConstraint& cut :</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  result.cuts()) {</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  std::vector<int> gurobi_vars;</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  gurobi_vars.reserve(cut.linear_expression().ids_size());</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> int64_t <span class="keywordtype">id</span> : cut.linear_expression().ids()) {</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  gurobi_vars.push_back(callback_input.variable_ids.at(<span class="keywordtype">id</span>));</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  }</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  std::vector<std::pair<char, double>> sense_bound_pairs;</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordflow">if</span> (cut.lower_bound() == cut.upper_bound()) {</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  sense_bound_pairs.emplace_back(<a class="code" href="environment_8h.html#ab1259c28b7591a6ed65482a365be56c6">GRB_EQUAL</a>, cut.upper_bound());</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">if</span> (cut.upper_bound() < <a class="code" href="namespaceoperations__research_1_1math__opt.html#ad9f50c9313b35cc1e8887057dc4d9645">kInf</a>) {</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  sense_bound_pairs.emplace_back(<a class="code" href="environment_8h.html#ad789b60cb2feff34abddf416dcdba0c9">GRB_LESS_EQUAL</a>, cut.upper_bound());</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  }</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">if</span> (cut.lower_bound() > -<a class="code" href="namespaceoperations__research_1_1math__opt.html#ad9f50c9313b35cc1e8887057dc4d9645">kInf</a>) {</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  sense_bound_pairs.emplace_back(<a class="code" href="environment_8h.html#a2f1213e965bc4f4239c9178b6e8af074">GRB_GREATER_EQUAL</a>, cut.lower_bound());</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="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> [sense, <a class="code" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a>] : sense_bound_pairs) {</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(<a class="code" href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a>.AddConstraint(gurobi_vars,</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  cut.linear_expression().values(),</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  sense, <a class="code" href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a>, cut.is_lazy()));</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  }</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  }</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> PrimalSolutionProto& solution : result.suggested_solution()) {</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="comment">// TODO(b/175829773): we cannot fill in auxiliary variables from range</span></div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="comment">// constraints.</span></div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  std::vector<double> gurobi_var_values(callback_input.num_gurobi_vars,</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <a class="code" href="environment_8h.html#af1ed3c79be1f7b75cf20ab2ecfffbca6">GRB_UNDEFINED</a>);</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> [<span class="keywordtype">id</span>, <a class="code" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>] : <a class="code" href="namespaceoperations__research_1_1math__opt.html#ac17be684f3a6337b38f287c0a1e8c691">MakeView</a>(solution.variable_values())) {</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  gurobi_var_values[callback_input.variable_ids.at(<span class="keywordtype">id</span>)] = <a class="code" href="demon__profiler_8cc.html#ac072af30c4ffbc834bb4c681f6ecb514">value</a>;</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  }</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(<a class="code" href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a>.SuggestSolution(gurobi_var_values).status());</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  }</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span> </div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">if</span> (result.terminate()) {</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <a class="code" href="namespaceoperations__research.html#a69e4cf6405f02b16450fec8e1cee1c8f">GRBterminate</a>(<a class="code" href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a>.grb_model());</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordflow">return</span> absl::OkStatus();</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  }</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordflow">return</span> absl::OkStatus();</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span> }</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span> </div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span> } <span class="comment">// namespace</span></div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span> </div><div class="line"><a name="l00395"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1math__opt.html#a90644d44a9987c14edfb1cd0d2605bc5"> 395</a></span> std::vector<bool> <a class="code" href="namespaceoperations__research_1_1math__opt.html#a90644d44a9987c14edfb1cd0d2605bc5">EventToGurobiWhere</a>(</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="keyword">const</span> absl::flat_hash_set<CallbackEventProto>& events) {</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  std::vector<bool> result(kNumGurobiEvents);</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> event : events) {</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  result[GurobiEvent(event)] = <span class="keyword">true</span>;</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  }</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span> }</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> </div><div class="line"><a name="l00404"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1math__opt.html#aa0726d807a2d5a0679c067794b04ada6"> 404</a></span> absl::Status <a class="code" href="namespaceoperations__research_1_1math__opt.html#aa0726d807a2d5a0679c067794b04ada6">GurobiCallbackImpl</a>(<a class="code" href="environment_8h.html#a865e461c79c88bc5c0d5f56087ae4876">GRBmodel</a>* grb_model, <span class="keywordtype">void</span>* cbdata, <span class="keywordtype">int</span> <a class="code" href="gurobi__interface_8cc.html#a675dd47bbf0a66c9cb592047797a6d69">where</a>,</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="keyword">const</span> <a class="code" href="structoperations__research_1_1math__opt_1_1_gurobi_callback_input.html">GurobiCallbackInput</a>& callback_input,</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <a class="code" href="classoperations__research_1_1math__opt_1_1_message_callback_data.html">MessageCallbackData</a>& message_callback_data) {</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">if</span> (callback_input.<a class="code" href="structoperations__research_1_1math__opt_1_1_gurobi_callback_input.html#af4d74fe70a864d1ead9a9af72c09df62">user_cb</a> == <span class="keyword">nullptr</span> || !callback_input.<a class="code" href="structoperations__research_1_1math__opt_1_1_gurobi_callback_input.html#a4d083d364e0b7deb4191e275069f66f9">events</a>[<a class="code" href="gurobi__interface_8cc.html#a675dd47bbf0a66c9cb592047797a6d69">where</a>]) {</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">return</span> absl::OkStatus();</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  }</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keyword">const</span> GurobiCallbackContext cb_context(grb_model, cbdata, <a class="code" href="gurobi__interface_8cc.html#a675dd47bbf0a66c9cb592047797a6d69">where</a>);</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <a class="code" href="status__macros_8h.html#a600de4b8f65fe0a4b1898041634f9011">ASSIGN_OR_RETURN</a>(<span class="keyword">const</span> absl::optional<CallbackDataProto> callback_data,</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  CreateCallbackDataProto(cb_context, callback_input,</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  message_callback_data));</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordflow">if</span> (!callback_data) {</div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="keywordflow">return</span> absl::OkStatus();</div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  }</div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keyword">const</span> absl::StatusOr<CallbackResultProto> result =</div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  callback_input.<a class="code" href="structoperations__research_1_1math__opt_1_1_gurobi_callback_input.html#af4d74fe70a864d1ead9a9af72c09df62">user_cb</a>(*callback_data);</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">if</span> (!result.ok()) {</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <a class="code" href="namespaceoperations__research.html#a69e4cf6405f02b16450fec8e1cee1c8f">GRBterminate</a>(grb_model);</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">return</span> result.status();</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>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(ApplyResult(cb_context, callback_input, *result));</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keywordflow">return</span> absl::OkStatus();</div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> }</div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> </div><div class="line"><a name="l00427"></a><span class="lineno"><a class="line" href="namespaceoperations__research_1_1math__opt.html#ab4c5bf9cf19938d8fcabd15e6ef95349"> 427</a></span> absl::Status <a class="code" href="namespaceoperations__research_1_1math__opt.html#ab4c5bf9cf19938d8fcabd15e6ef95349">GurobiCallbackImplFlush</a>(</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keyword">const</span> <a class="code" href="structoperations__research_1_1math__opt_1_1_gurobi_callback_input.html">GurobiCallbackInput</a>& callback_input,</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <a class="code" href="classoperations__research_1_1math__opt_1_1_message_callback_data.html">MessageCallbackData</a>& message_callback_data) {</div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  absl::optional<CallbackDataProto> callback_data =</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  message_callback_data.<a class="code" href="classoperations__research_1_1math__opt_1_1_message_callback_data.html#a8caf07a427bdefa52380ed652d3428ae">Flush</a>();</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keywordflow">if</span> (!callback_data) {</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordflow">return</span> absl::OkStatus();</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  }</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <a class="code" href="status__macros_8h.html#acdc223d8c59d5c591dc6b4e88257627b">RETURN_IF_ERROR</a>(SetRuntime(callback_input, *callback_data))</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  << <span class="stringliteral">"Error encoding runtime when flushing the remaining callbacks"</span>;</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span> </div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="comment">// No need to terminate here, we are already done. On top of that we are after</span></div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="comment">// the solve, so nothing in the CallbackResultProto matters.</span></div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keywordflow">return</span> callback_input.<a class="code" href="structoperations__research_1_1math__opt_1_1_gurobi_callback_input.html#af4d74fe70a864d1ead9a9af72c09df62">user_cb</a>(*callback_data).status();</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> }</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span> </div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span> } <span class="comment">// namespace math_opt</span></div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span> } <span class="comment">// namespace operations_research</span></div><div class="ttc" id="namespaceoperations__research_html_a6e3a7ab84a516ee67eb78d50ac3987e2"><div class="ttname"><a href="namespaceoperations__research.html#a6e3a7ab84a516ee67eb78d50ac3987e2">operations_research::GRBgeterrormsg</a></div><div class="ttdeci">std::function< const char *(GRBenv *env)> GRBgeterrormsg</div><div class="ttdef"><b>Definition:</b> <a href="environment_8cc_source.html#l00426">environment.cc:426</a></div></div>
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<div class="ttc" id="environment_8h_html_a0a5caff77126a575cb1c3136c78ea5e6"><div class="ttname"><a href="environment_8h.html#a0a5caff77126a575cb1c3136c78ea5e6">GRB_CB_MIPSOL</a></div><div class="ttdeci">#define GRB_CB_MIPSOL</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00324">environment.h:324</a></div></div>
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<div class="ttc" id="routing__filters_8cc_html_a4f1e8002734902ae1c65ccc3fc30c98e"><div class="ttname"><a href="routing__filters_8cc.html#a4f1e8002734902ae1c65ccc3fc30c98e">bound</a></div><div class="ttdeci">int64_t bound</div><div class="ttdef"><b>Definition:</b> <a href="routing__filters_8cc_source.html#l00984">routing_filters.cc:984</a></div></div>
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<div class="ttc" id="environment_8h_html_a89b0c088ac628a567b841f57a21abed8"><div class="ttname"><a href="environment_8h.html#a89b0c088ac628a567b841f57a21abed8">GRB_CB_PRESOLVE</a></div><div class="ttdeci">#define GRB_CB_PRESOLVE</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00321">environment.h:321</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_ac17be684f3a6337b38f287c0a1e8c691"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#ac17be684f3a6337b38f287c0a1e8c691">operations_research::math_opt::MakeView</a></div><div class="ttdeci">SparseVectorView< T > MakeView(absl::Span< const int64_t > ids, const Collection &values)</div><div class="ttdef"><b>Definition:</b> <a href="sparse__vector__view_8h_source.html#l00140">sparse_vector_view.h:140</a></div></div>
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<div class="ttc" id="environment_8h_html_a912489cd8b988c36cd55b2e8a9d0c27b"><div class="ttname"><a href="environment_8h.html#a912489cd8b988c36cd55b2e8a9d0c27b">GRB_CB_MIPNODE_SOLCNT</a></div><div class="ttdeci">#define GRB_CB_MIPNODE_SOLCNT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00358">environment.h:358</a></div></div>
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<div class="ttc" id="environment_8h_html_a216078c95dd7668ccf40473b18cb2875"><div class="ttname"><a href="environment_8h.html#a216078c95dd7668ccf40473b18cb2875">GRB_CB_PRE_COECHG</a></div><div class="ttdeci">#define GRB_CB_PRE_COECHG</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00332">environment.h:332</a></div></div>
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<div class="ttc" id="environment_8h_html_a2f1213e965bc4f4239c9178b6e8af074"><div class="ttname"><a href="environment_8h.html#a2f1213e965bc4f4239c9178b6e8af074">GRB_GREATER_EQUAL</a></div><div class="ttdeci">#define GRB_GREATER_EQUAL</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00097">environment.h:97</a></div></div>
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<div class="ttc" id="environment_8h_html_a4d584a9335fb167ec95d022a741b6e11"><div class="ttname"><a href="environment_8h.html#a4d584a9335fb167ec95d022a741b6e11">GRB_CB_MIPNODE_OBJBND</a></div><div class="ttdeci">#define GRB_CB_MIPNODE_OBJBND</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00356">environment.h:356</a></div></div>
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<div class="ttc" id="environment_8h_html_aa5fecfa80463d338f39d7038d3db6d8c"><div class="ttname"><a href="environment_8h.html#aa5fecfa80463d338f39d7038d3db6d8c">GRB_CB_MIPSOL_OBJ</a></div><div class="ttdeci">#define GRB_CB_MIPSOL_OBJ</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00347">environment.h:347</a></div></div>
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<div class="ttc" id="log__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>
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<div class="ttc" id="environment_8h_html_afc51a68ce211063bb39fc5adeb3b246e"><div class="ttname"><a href="environment_8h.html#afc51a68ce211063bb39fc5adeb3b246e">GRB_CB_PRE_BNDCHG</a></div><div class="ttdeci">#define GRB_CB_PRE_BNDCHG</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00331">environment.h:331</a></div></div>
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<div class="ttc" id="environment_8h_html_aca5fbc9811d563a8610ebc97cb888c0d"><div class="ttname"><a href="environment_8h.html#aca5fbc9811d563a8610ebc97cb888c0d">GRB_CB_MIP_CUTCNT</a></div><div class="ttdeci">#define GRB_CB_MIP_CUTCNT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00342">environment.h:342</a></div></div>
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<div class="ttc" id="classgtl_1_1linked__hash__map_html"><div class="ttname"><a href="classgtl_1_1linked__hash__map.html">gtl::linked_hash_map< int64_t, int ></a></div></div>
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<div class="ttc" id="environment_8h_html_ae4ba27ca9e466f748aa2d24e168cbaff"><div class="ttname"><a href="environment_8h.html#ae4ba27ca9e466f748aa2d24e168cbaff">GRB_CB_BARRIER_DUALOBJ</a></div><div class="ttdeci">#define GRB_CB_BARRIER_DUALOBJ</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00365">environment.h:365</a></div></div>
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<div class="ttc" id="namespaceoperations__research_html_a7107d55540a5ebdf66762aa4ee42e404"><div class="ttname"><a href="namespaceoperations__research.html#a7107d55540a5ebdf66762aa4ee42e404">operations_research::GRBgetenv</a></div><div class="ttdeci">std::function< GRBenv *(GRBmodel *model)> GRBgetenv</div><div class="ttdef"><b>Definition:</b> <a href="environment_8cc_source.html#l00419">environment.cc:419</a></div></div>
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<div class="ttc" id="environment_8h_html_af01b3c420d61b98df6e5ab0f12728d73"><div class="ttname"><a href="environment_8h.html#af01b3c420d61b98df6e5ab0f12728d73">GRB_CB_MIP_NODCNT</a></div><div class="ttdeci">#define GRB_CB_MIP_NODCNT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00340">environment.h:340</a></div></div>
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<div class="ttc" id="environment_8h_html_a865e461c79c88bc5c0d5f56087ae4876"><div class="ttname"><a href="environment_8h.html#a865e461c79c88bc5c0d5f56087ae4876">GRBmodel</a></div><div class="ttdeci">struct _GRBmodel GRBmodel</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00024">environment.h:24</a></div></div>
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<div class="ttc" id="namespaceoperations__research_html_a33d1abd321c8db939e166390ac01cc1e"><div class="ttname"><a href="namespaceoperations__research.html#a33d1abd321c8db939e166390ac01cc1e">operations_research::GRBcblazy</a></div><div class="ttdeci">std::function< int(void *cbdata, int lazylen, const int *lazyind, const double *lazyval, char lazysense, double lazyrhs)> GRBcblazy</div><div class="ttdef"><b>Definition:</b> <a href="environment_8cc_source.html#l00158">environment.cc:158</a></div></div>
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<div class="ttc" id="base_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#l00416">base/logging.h:416</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#l00273">gurobi_interface.cc:273</a></div></div>
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<div class="ttc" id="environment_8h_html_aadb066f9ac42c966161a37cb203f660c"><div class="ttname"><a href="environment_8h.html#aadb066f9ac42c966161a37cb203f660c">GRB_CB_SPX_DUALINF</a></div><div class="ttdeci">#define GRB_CB_SPX_DUALINF</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00336">environment.h:336</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_ad9f50c9313b35cc1e8887057dc4d9645"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#ad9f50c9313b35cc1e8887057dc4d9645">operations_research::math_opt::kInf</a></div><div class="ttdeci">constexpr double kInf</div><div class="ttdef"><b>Definition:</b> <a href="ids__validator_8cc_source.html#l00035">ids_validator.cc:35</a></div></div>
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<div class="ttc" id="environment_8h_html_a1839c94e6deb4c80e8acf5b78a7937fc"><div class="ttname"><a href="environment_8h.html#a1839c94e6deb4c80e8acf5b78a7937fc">GRB_CB_BARRIER</a></div><div class="ttdeci">#define GRB_CB_BARRIER</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00327">environment.h:327</a></div></div>
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<div class="ttc" id="environment_8h_html_ac43c2cbdae9008fbe1b6a81d9b4694a8"><div class="ttname"><a href="environment_8h.html#ac43c2cbdae9008fbe1b6a81d9b4694a8">GRB_CB_MESSAGE</a></div><div class="ttdeci">#define GRB_CB_MESSAGE</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00326">environment.h:326</a></div></div>
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<div class="ttc" id="environment_8h_html_abc54b7dd805b6382185a462eb375fb96"><div class="ttname"><a href="environment_8h.html#abc54b7dd805b6382185a462eb375fb96">GRB_CB_BARRIER_DUALINF</a></div><div class="ttdeci">#define GRB_CB_BARRIER_DUALINF</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00367">environment.h:367</a></div></div>
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<div class="ttc" id="structoperations__research_1_1math__opt_1_1_gurobi_callback_input_html_a4d083d364e0b7deb4191e275069f66f9"><div class="ttname"><a href="structoperations__research_1_1math__opt_1_1_gurobi_callback_input.html#a4d083d364e0b7deb4191e275069f66f9">operations_research::math_opt::GurobiCallbackInput::events</a></div><div class="ttdeci">std::vector< bool > events</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__callback_8h_source.html#l00042">gurobi_callback.h:42</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_a90644d44a9987c14edfb1cd0d2605bc5"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#a90644d44a9987c14edfb1cd0d2605bc5">operations_research::math_opt::EventToGurobiWhere</a></div><div class="ttdeci">std::vector< bool > EventToGurobiWhere(const absl::flat_hash_set< CallbackEventProto > &events)</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__callback_8cc_source.html#l00395">gurobi_callback.cc:395</a></div></div>
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<div class="ttc" id="environment_8h_html_aff582a5106fb7b0af23d2e76c81e664e"><div class="ttname"><a href="environment_8h.html#aff582a5106fb7b0af23d2e76c81e664e">GRB_CB_MIPNODE_NODCNT</a></div><div class="ttdeci">#define GRB_CB_MIPNODE_NODCNT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00357">environment.h:357</a></div></div>
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<div class="ttc" id="namespaceutil__time_html_ac1935e49a14ae747b6ee76804b52bf70"><div class="ttname"><a href="namespaceutil__time.html#ac1935e49a14ae747b6ee76804b52bf70">util_time::EncodeGoogleApiProto</a></div><div class="ttdeci">inline ::absl::StatusOr< google::protobuf::Duration > EncodeGoogleApiProto(absl::Duration d)</div><div class="ttdef"><b>Definition:</b> <a href="protoutil_8h_source.html#l00027">protoutil.h:27</a></div></div>
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<div class="ttc" id="environment_8h_html_a862afbb0b31942b06b8aa484e608bb88"><div class="ttname"><a href="environment_8h.html#a862afbb0b31942b06b8aa484e608bb88">GRB_CB_PRE_ROWDEL</a></div><div class="ttdeci">#define GRB_CB_PRE_ROWDEL</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00329">environment.h:329</a></div></div>
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<div class="ttc" id="environment_8h_html_a6d9cf52eabffeae7e6a9a96196518f68"><div class="ttname"><a href="environment_8h.html#a6d9cf52eabffeae7e6a9a96196518f68">GRB_CB_MIPSOL_NODCNT</a></div><div class="ttdeci">#define GRB_CB_MIPSOL_NODCNT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00350">environment.h:350</a></div></div>
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<div class="ttc" id="environment_8h_html_a3712448e74823009d14db17d714ecf02"><div class="ttname"><a href="environment_8h.html#a3712448e74823009d14db17d714ecf02">GRB_CB_MIP_ITRCNT</a></div><div class="ttdeci">#define GRB_CB_MIP_ITRCNT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00344">environment.h:344</a></div></div>
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<div class="ttc" id="environment_8h_html_a0783657775ee5a8817210723e6dcde5d"><div class="ttname"><a href="environment_8h.html#a0783657775ee5a8817210723e6dcde5d">GRB_CB_SPX_ISPERT</a></div><div class="ttdeci">#define GRB_CB_SPX_ISPERT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00337">environment.h:337</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_ab4c5bf9cf19938d8fcabd15e6ef95349"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#ab4c5bf9cf19938d8fcabd15e6ef95349">operations_research::math_opt::GurobiCallbackImplFlush</a></div><div class="ttdeci">absl::Status GurobiCallbackImplFlush(const GurobiCallbackInput &callback_input, MessageCallbackData &message_callback_data)</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__callback_8cc_source.html#l00427">gurobi_callback.cc:427</a></div></div>
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<div class="ttc" id="environment_8h_html_abb3f655e9eb74e37fbf2d11cb0efad5d"><div class="ttname"><a href="environment_8h.html#abb3f655e9eb74e37fbf2d11cb0efad5d">GRB_CB_POLLING</a></div><div class="ttdeci">#define GRB_CB_POLLING</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00320">environment.h:320</a></div></div>
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<div class="ttc" id="environment_8h_html_a6b625c77f2bd8978dffdf12653feb52d"><div class="ttname"><a href="environment_8h.html#a6b625c77f2bd8978dffdf12653feb52d">GRB_CB_BARRIER_COMPL</a></div><div class="ttdeci">#define GRB_CB_BARRIER_COMPL</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00368">environment.h:368</a></div></div>
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<div class="ttc" id="namespaceoperations__research_html_ab4617e07ad4b1c37b128c99095da1bd1"><div class="ttname"><a href="namespaceoperations__research.html#ab4617e07ad4b1c37b128c99095da1bd1">operations_research::GRBcbsolution</a></div><div class="ttdeci">std::function< int(void *cbdata, const double *solution, double *objvalP)> GRBcbsolution</div><div class="ttdef"><b>Definition:</b> <a href="environment_8cc_source.html#l00152">environment.cc:152</a></div></div>
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<div class="ttc" id="namespaceoperations__research_html_ae34339d979ba0033f7e47a88913e2d60"><div class="ttname"><a href="namespaceoperations__research.html#ae34339d979ba0033f7e47a88913e2d60">operations_research::GRBcbcut</a></div><div class="ttdeci">std::function< int(void *cbdata, int cutlen, const int *cutind, const double *cutval, char cutsense, double cutrhs)> GRBcbcut</div><div class="ttdef"><b>Definition:</b> <a href="environment_8cc_source.html#l00155">environment.cc:155</a></div></div>
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<div class="ttc" id="environment_8h_html_af1ed3c79be1f7b75cf20ab2ecfffbca6"><div class="ttname"><a href="environment_8h.html#af1ed3c79be1f7b75cf20ab2ecfffbca6">GRB_UNDEFINED</a></div><div class="ttdeci">#define GRB_UNDEFINED</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00109">environment.h:109</a></div></div>
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<div class="ttc" id="environment_8h_html_a2963ba0c46b86ac4680fb3bb4ca8b2f3"><div class="ttname"><a href="environment_8h.html#a2963ba0c46b86ac4680fb3bb4ca8b2f3">GRBenv</a></div><div class="ttdeci">struct _GRBenv GRBenv</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00025">environment.h:25</a></div></div>
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<div class="ttc" id="environment_8h_html_a05bce41f4273c2b48573cafdd7e4a39f"><div class="ttname"><a href="environment_8h.html#a05bce41f4273c2b48573cafdd7e4a39f">GRB_CB_MIP_NODLFT</a></div><div class="ttdeci">#define GRB_CB_MIP_NODLFT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00343">environment.h:343</a></div></div>
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<div class="ttc" id="environment_8h_html_a5ea7c11f22bfc615f86e6a521f180f4e"><div class="ttname"><a href="environment_8h.html#a5ea7c11f22bfc615f86e6a521f180f4e">GRB_CB_SPX_ITRCNT</a></div><div class="ttdeci">#define GRB_CB_SPX_ITRCNT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00333">environment.h:333</a></div></div>
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<div class="ttc" id="message__callback__data_8h_html"><div class="ttname"><a href="message__callback__data_8h.html">message_callback_data.h</a></div></div>
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<div class="ttc" id="environment_8h_html_af53039f8b797e2f4196d5227a0fc5e6e"><div class="ttname"><a href="environment_8h.html#af53039f8b797e2f4196d5227a0fc5e6e">GRB_CB_MIPSOL_OBJBND</a></div><div class="ttdeci">#define GRB_CB_MIPSOL_OBJBND</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00349">environment.h:349</a></div></div>
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<div class="ttc" id="classoperations__research_1_1math__opt_1_1_message_callback_data_html_a8caf07a427bdefa52380ed652d3428ae"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_message_callback_data.html#a8caf07a427bdefa52380ed652d3428ae">operations_research::math_opt::MessageCallbackData::Flush</a></div><div class="ttdeci">absl::optional< CallbackDataProto > Flush()</div><div class="ttdef"><b>Definition:</b> <a href="message__callback__data_8cc_source.html#l00062">message_callback_data.cc:62</a></div></div>
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<div class="ttc" id="namespaceoperations__research_html_a47dfe898be4c2a59df528e39e96d0798"><div class="ttname"><a href="namespaceoperations__research.html#a47dfe898be4c2a59df528e39e96d0798">operations_research::GRBcbget</a></div><div class="ttdeci">std::function< int(void *cbdata, int where, int what, void *resultP)> GRBcbget</div><div class="ttdef"><b>Definition:</b> <a href="environment_8cc_source.html#l00147">environment.cc:147</a></div></div>
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<div class="ttc" id="namespaceoperations__research_html_a69e4cf6405f02b16450fec8e1cee1c8f"><div class="ttname"><a href="namespaceoperations__research.html#a69e4cf6405f02b16450fec8e1cee1c8f">operations_research::GRBterminate</a></div><div class="ttdeci">std::function< void(GRBmodel *model)> GRBterminate</div><div class="ttdef"><b>Definition:</b> <a href="environment_8cc_source.html#l00349">environment.cc:349</a></div></div>
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<div class="ttc" id="environment_8h_html_af8fb3672cf50fed4941b2864e5cba6aa"><div class="ttname"><a href="environment_8h.html#af8fb3672cf50fed4941b2864e5cba6aa">GRB_CB_BARRIER_PRIMINF</a></div><div class="ttdeci">#define GRB_CB_BARRIER_PRIMINF</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00366">environment.h:366</a></div></div>
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<div class="ttc" id="environment_8h_html_aeb7dbaa0117de43deb56e7c6b6b76f5a"><div class="ttname"><a href="environment_8h.html#aeb7dbaa0117de43deb56e7c6b6b76f5a">GRB_CB_MIP_SOLCNT</a></div><div class="ttdeci">#define GRB_CB_MIP_SOLCNT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00341">environment.h:341</a></div></div>
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<div class="ttc" id="structoperations__research_1_1math__opt_1_1_gurobi_callback_input_html_af4d74fe70a864d1ead9a9af72c09df62"><div class="ttname"><a href="structoperations__research_1_1math__opt_1_1_gurobi_callback_input.html#af4d74fe70a864d1ead9a9af72c09df62">operations_research::math_opt::GurobiCallbackInput::user_cb</a></div><div class="ttdeci">SolverInterface::Callback user_cb</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__callback_8h_source.html#l00035">gurobi_callback.h:35</a></div></div>
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<div class="ttc" id="gurobi__interface_8cc_html_a675dd47bbf0a66c9cb592047797a6d69"><div class="ttname"><a href="gurobi__interface_8cc.html#a675dd47bbf0a66c9cb592047797a6d69">where</a></div><div class="ttdeci">int where</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__interface_8cc_source.html#l00275">gurobi_interface.cc:275</a></div></div>
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<div class="ttc" id="environment_8h_html_a2d16f1495c5684c153147246fa4f5699"><div class="ttname"><a href="environment_8h.html#a2d16f1495c5684c153147246fa4f5699">GRB_CB_MSG_STRING</a></div><div class="ttdeci">#define GRB_CB_MSG_STRING</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00361">environment.h:361</a></div></div>
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<div class="ttc" id="sparse__vector__view_8h_html"><div class="ttname"><a href="sparse__vector__view_8h.html">sparse_vector_view.h</a></div></div>
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<div class="ttc" id="environment_8h_html_a52444d4642a70bdfb1ffa1e3f120f4ec"><div class="ttname"><a href="environment_8h.html#a52444d4642a70bdfb1ffa1e3f120f4ec">GRB_CB_SIMPLEX</a></div><div class="ttdeci">#define GRB_CB_SIMPLEX</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00322">environment.h:322</a></div></div>
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<div class="ttc" id="environment_8h_html_ab5301e67ade13781e2ef8e6b8eabe34d"><div class="ttname"><a href="environment_8h.html#ab5301e67ade13781e2ef8e6b8eabe34d">GRB_CB_MIP_OBJBST</a></div><div class="ttdeci">#define GRB_CB_MIP_OBJBST</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00338">environment.h:338</a></div></div>
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<div class="ttc" id="namespaceoperations__research_1_1math__opt_html_aa0726d807a2d5a0679c067794b04ada6"><div class="ttname"><a href="namespaceoperations__research_1_1math__opt.html#aa0726d807a2d5a0679c067794b04ada6">operations_research::math_opt::GurobiCallbackImpl</a></div><div class="ttdeci">absl::Status GurobiCallbackImpl(GRBmodel *grb_model, void *cbdata, int where, const GurobiCallbackInput &callback_input, MessageCallbackData &message_callback_data)</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__callback_8cc_source.html#l00404">gurobi_callback.cc:404</a></div></div>
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<div class="ttc" id="environment_8h_html_aee119d240dfbc49a883d6982dd0ca6c0"><div class="ttname"><a href="environment_8h.html#aee119d240dfbc49a883d6982dd0ca6c0">GRB_CB_PRE_COLDEL</a></div><div class="ttdeci">#define GRB_CB_PRE_COLDEL</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00328">environment.h:328</a></div></div>
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<div class="ttc" id="environment_8h_html_a33b25740bb9ccb109a9942ced348a001"><div class="ttname"><a href="environment_8h.html#a33b25740bb9ccb109a9942ced348a001">GRB_CB_MIPSOL_OBJBST</a></div><div class="ttdeci">#define GRB_CB_MIPSOL_OBJBST</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00348">environment.h:348</a></div></div>
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<div class="ttc" id="environment_8h_html_ac2390d3fd6af6a4f5b06ddb5f0b1c2fd"><div class="ttname"><a href="environment_8h.html#ac2390d3fd6af6a4f5b06ddb5f0b1c2fd">GRB_CB_BARRIER_ITRCNT</a></div><div class="ttdeci">#define GRB_CB_BARRIER_ITRCNT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00363">environment.h:363</a></div></div>
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<div class="ttc" id="protoutil_8h_html"><div class="ttname"><a href="protoutil_8h.html">protoutil.h</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="environment_8h_html_a6f9cab1c3a4ef170a32b76fa5616b05e"><div class="ttname"><a href="environment_8h.html#a6f9cab1c3a4ef170a32b76fa5616b05e">GRB_CB_MIPNODE_STATUS</a></div><div class="ttdeci">#define GRB_CB_MIPNODE_STATUS</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00353">environment.h:353</a></div></div>
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<div class="ttc" id="environment_8h_html_ad789b60cb2feff34abddf416dcdba0c9"><div class="ttname"><a href="environment_8h.html#ad789b60cb2feff34abddf416dcdba0c9">GRB_LESS_EQUAL</a></div><div class="ttdeci">#define GRB_LESS_EQUAL</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00096">environment.h:96</a></div></div>
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<div class="ttc" id="environment_8h_html_af4b792d08f1ac5f7878f80eaf432df48"><div class="ttname"><a href="environment_8h.html#af4b792d08f1ac5f7878f80eaf432df48">GRB_CB_MIPSOL_SOL</a></div><div class="ttdeci">#define GRB_CB_MIPSOL_SOL</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00346">environment.h:346</a></div></div>
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<div class="ttc" id="math__opt__proto__utils_8h_html"><div class="ttname"><a href="math__opt__proto__utils_8h.html">math_opt_proto_utils.h</a></div></div>
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<div class="ttc" id="environment_8h_html"><div class="ttname"><a href="environment_8h.html">environment.h</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="gurobi__callback_8cc_html_a58669ccd3eb88ecc437287459b6abeb9"><div class="ttname"><a href="gurobi__callback_8cc.html#a58669ccd3eb88ecc437287459b6abeb9">MO_SET_OR_RET</a></div><div class="ttdeci">#define MO_SET_OR_RET(setter, statusor)</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__callback_8cc_source.html#l00197">gurobi_callback.cc:197</a></div></div>
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<div class="ttc" id="environment_8h_html_a55c9d1c074cfd4ddc378cf03c0281b7a"><div class="ttname"><a href="environment_8h.html#a55c9d1c074cfd4ddc378cf03c0281b7a">GRB_CB_MIPNODE_OBJBST</a></div><div class="ttdeci">#define GRB_CB_MIPNODE_OBJBST</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00355">environment.h:355</a></div></div>
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<div class="ttc" id="environment_8h_html_a12cb4410aa88188b674ee17b1c8eb56a"><div class="ttname"><a href="environment_8h.html#a12cb4410aa88188b674ee17b1c8eb56a">GRB_CB_SPX_OBJVAL</a></div><div class="ttdeci">#define GRB_CB_SPX_OBJVAL</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00334">environment.h:334</a></div></div>
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<div class="ttc" id="environment_8h_html_ab1259c28b7591a6ed65482a365be56c6"><div class="ttname"><a href="environment_8h.html#ab1259c28b7591a6ed65482a365be56c6">GRB_EQUAL</a></div><div class="ttdeci">#define GRB_EQUAL</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00098">environment.h:98</a></div></div>
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<div class="ttc" id="linked__hash__map_8h_html"><div class="ttname"><a href="linked__hash__map_8h.html">linked_hash_map.h</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="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="classoperations__research_1_1math__opt_1_1_message_callback_data_html"><div class="ttname"><a href="classoperations__research_1_1math__opt_1_1_message_callback_data.html">operations_research::math_opt::MessageCallbackData</a></div><div class="ttdef"><b>Definition:</b> <a href="message__callback__data_8h_source.html#l00041">message_callback_data.h:41</a></div></div>
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<div class="ttc" id="environment_8h_html_a873bcb8a6197c38d2606da66f98b23cc"><div class="ttname"><a href="environment_8h.html#a873bcb8a6197c38d2606da66f98b23cc">GRB_CB_BARRIER_PRIMOBJ</a></div><div class="ttdeci">#define GRB_CB_BARRIER_PRIMOBJ</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00364">environment.h:364</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="environment_8h_html_a4afc9caa8d78d2754061f82919d3ee58"><div class="ttname"><a href="environment_8h.html#a4afc9caa8d78d2754061f82919d3ee58">GRB_CB_MIPNODE_REL</a></div><div class="ttdeci">#define GRB_CB_MIPNODE_REL</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00354">environment.h:354</a></div></div>
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<div class="ttc" id="environment_8h_html_af732ff9c46396ddcc5d077b7aa5bac29"><div class="ttname"><a href="environment_8h.html#af732ff9c46396ddcc5d077b7aa5bac29">GRB_CB_MIP_OBJBND</a></div><div class="ttdeci">#define GRB_CB_MIP_OBJBND</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00339">environment.h:339</a></div></div>
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<div class="ttc" id="gurobi__interface_8cc_html_a5f287b83a753915ae862fed64f8640a6"><div class="ttname"><a href="gurobi__interface_8cc.html#a5f287b83a753915ae862fed64f8640a6">context</a></div><div class="ttdeci">GurobiMPCallbackContext * context</div><div class="ttdef"><b>Definition:</b> <a href="gurobi__interface_8cc_source.html#l00513">gurobi_interface.cc:513</a></div></div>
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<div class="ttc" id="structoperations__research_1_1math__opt_1_1_gurobi_callback_input_html"><div class="ttname"><a href="structoperations__research_1_1math__opt_1_1_gurobi_callback_input.html">operations_research::math_opt::GurobiCallbackInput</a></div><div class="ttdef"><b>Definition:</b> <a href="gurobi__callback_8h_source.html#l00034">gurobi_callback.h:34</a></div></div>
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<div class="ttc" id="environment_8h_html_ab615ac552ba7202f8912556da65f22e0"><div class="ttname"><a href="environment_8h.html#ab615ac552ba7202f8912556da65f22e0">GRB_CB_MIPNODE</a></div><div class="ttdeci">#define GRB_CB_MIPNODE</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00325">environment.h:325</a></div></div>
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<div class="ttc" id="demon__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>
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<div class="ttc" id="environment_8h_html_a43d3b5140bdab02bbc8fff16b910b854"><div class="ttname"><a href="environment_8h.html#a43d3b5140bdab02bbc8fff16b910b854">GRB_OPTIMAL</a></div><div class="ttdeci">#define GRB_OPTIMAL</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00457">environment.h:457</a></div></div>
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<div class="ttc" id="environment_8h_html_aab6ab7165db7d2c53281d91bdf208f6f"><div class="ttname"><a href="environment_8h.html#aab6ab7165db7d2c53281d91bdf208f6f">GRB_CB_MIP</a></div><div class="ttdeci">#define GRB_CB_MIP</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00323">environment.h:323</a></div></div>
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<div class="ttc" id="status__macros_8h_html_a600de4b8f65fe0a4b1898041634f9011"><div class="ttname"><a href="status__macros_8h.html#a600de4b8f65fe0a4b1898041634f9011">ASSIGN_OR_RETURN</a></div><div class="ttdeci">#define ASSIGN_OR_RETURN(lhs, rexpr)</div><div class="ttdef"><b>Definition:</b> <a href="status__macros_8h_source.html#l00055">status_macros.h:55</a></div></div>
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<div class="ttc" id="environment_8h_html_a3a5593327e020154004dc62aba54b763"><div class="ttname"><a href="environment_8h.html#a3a5593327e020154004dc62aba54b763">GRB_CB_MIPSOL_SOLCNT</a></div><div class="ttdeci">#define GRB_CB_MIPSOL_SOLCNT</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00351">environment.h:351</a></div></div>
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<div class="ttc" id="gurobi__callback_8h_html"><div class="ttname"><a href="gurobi__callback_8h.html">gurobi_callback.h</a></div></div>
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<div class="ttc" id="environment_8h_html_a3f6cbfdaa931fe6caab33877bdc35365"><div class="ttname"><a href="environment_8h.html#a3f6cbfdaa931fe6caab33877bdc35365">GRB_CB_SPX_PRIMINF</a></div><div class="ttdeci">#define GRB_CB_SPX_PRIMINF</div><div class="ttdef"><b>Definition:</b> <a href="environment_8h_source.html#l00335">environment.h:335</a></div></div>
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