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188 lines
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<a href="table_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// Copyright 2010-2021 Google LLC</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment">// you may not use this file except in compliance with the License.</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment">// You may obtain a copy of the License at</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">//</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">//</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment">// See the License for the specific language governing permissions and</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment">// limitations under the License.</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#ifndef OR_TOOLS_SAT_TABLE_H_</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#define OR_TOOLS_SAT_TABLE_H_</span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <functional></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include "absl/types/span.h"</span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include "<a class="code" href="integral__types_8h.html">ortools/base/integral_types.h</a>"</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include "<a class="code" href="integer_8h.html">ortools/sat/integer.h</a>"</span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include "<a class="code" href="sat_2model_8h.html">ortools/sat/model.h</a>"</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include "<a class="code" href="sat__base_8h.html">ortools/sat/sat_base.h</a>"</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceoperations__research.html">operations_research</a> {</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">namespace </span>sat {</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="comment">// Enforces that the given tuple of variables is equal to one of the given</span></div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="comment">// tuples. All the tuples must have the same size as var.size(), this is</span></div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="comment">// Checked.</span></div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a15784ff0c35105c45925c9fbe29121d1">AddTableConstraint</a>(absl::Span<const IntegerVariable> vars,</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> std::vector<std::vector<int64_t>> tuples, Model* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="comment">// Enforces that none of the given tuple appear.</span></div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="comment">//</span></div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="comment">// TODO(user): we could propagate more than what we currently do which is simply</span></div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="comment">// adding one clause per tuples.</span></div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a77234dab48516b8bceef7fbf4744bba1">AddNegatedTableConstraint</a>(absl::Span<const IntegerVariable> vars,</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> std::vector<std::vector<int64_t>> tuples,</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> Model* <a class="code hl_variable" href="gurobi__interface_8cc.html#a0728f23c9a47655d38e0bf1a2f200bcf">model</a>);</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="comment">// Enforces that exactly one literal in line_literals is true, and that</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="comment">// all literals in the corresponding line of the literal_tuples matrix are true.</span></div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="comment">// This constraint assumes that exactly one literal per column of the</span></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="comment">// literal_tuples matrix is true.</span></div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span>std::function<void(Model*)> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#a37b0e14e8d3650d11ce21a6b8d0a03ab">LiteralTableConstraint</a>(</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">const</span> std::vector<std::vector<Literal>>& literal_tuples,</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">const</span> std::vector<Literal>& line_literals);</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="comment">// Given an automaton defined by a set of 3-tuples:</span></div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="comment">// (state, transition_with_value_as_label, next_state)</span></div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span><span class="comment">// this accepts the sequences of vars.size() variables that are recognized by</span></div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="comment">// this automaton. That is:</span></div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><span class="comment">// - We start from the initial state.</span></div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="comment">// - For each variable, we move along the transition labeled by this variable</span></div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="comment">// value. Moreover, the variable must take a value that correspond to a</span></div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="comment">// feasible transition.</span></div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span><span class="comment">// - We only accept sequences that ends in one of the final states.</span></div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span><span class="comment">//</span></div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="comment">// We CHECK that there is only one possible transition for a state/value pair.</span></div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="comment">// See the test for some examples.</span></div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span>std::function<void(Model*)> <a class="code hl_function" href="namespaceoperations__research_1_1sat.html#ac0a34ced2e6cd6cdffe05f2d3fd7a9e8">TransitionConstraint</a>(</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">const</span> std::vector<IntegerVariable>& vars,</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">const</span> std::vector<std::vector<int64_t>>& automaton, int64_t initial_state,</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keyword">const</span> std::vector<int64_t>& final_states);</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span>} <span class="comment">// namespace sat</span></div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span>} <span class="comment">// namespace operations_research</span></div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> </div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span><span class="preprocessor">#endif </span><span class="comment">// OR_TOOLS_SAT_TABLE_H_</span></div>
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<div class="ttc" id="agurobi__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="ainteger_8h_html"><div class="ttname"><a href="integer_8h.html">integer.h</a></div></div>
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<div class="ttc" id="aintegral__types_8h_html"><div class="ttname"><a href="integral__types_8h.html">integral_types.h</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a15784ff0c35105c45925c9fbe29121d1"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a15784ff0c35105c45925c9fbe29121d1">operations_research::sat::AddTableConstraint</a></div><div class="ttdeci">void AddTableConstraint(absl::Span< const IntegerVariable > vars, std::vector< std::vector< int64_t > > tuples, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2table_8cc_source.html#l00250">sat/table.cc:250</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a37b0e14e8d3650d11ce21a6b8d0a03ab"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a37b0e14e8d3650d11ce21a6b8d0a03ab">operations_research::sat::LiteralTableConstraint</a></div><div class="ttdeci">std::function< void(Model *)> LiteralTableConstraint(const std::vector< std::vector< Literal > > &literal_tuples, const std::vector< Literal > &line_literals)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2table_8cc_source.html#l00547">sat/table.cc:547</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_a77234dab48516b8bceef7fbf4744bba1"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#a77234dab48516b8bceef7fbf4744bba1">operations_research::sat::AddNegatedTableConstraint</a></div><div class="ttdeci">void AddNegatedTableConstraint(absl::Span< const IntegerVariable > vars, std::vector< std::vector< int64_t > > tuples, Model *model)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2table_8cc_source.html#l00460">sat/table.cc:460</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_1_1sat_html_ac0a34ced2e6cd6cdffe05f2d3fd7a9e8"><div class="ttname"><a href="namespaceoperations__research_1_1sat.html#ac0a34ced2e6cd6cdffe05f2d3fd7a9e8">operations_research::sat::TransitionConstraint</a></div><div class="ttdeci">std::function< void(Model *)> TransitionConstraint(const std::vector< IntegerVariable > &vars, const std::vector< std::vector< int64_t > > &automaton, int64_t initial_state, const std::vector< int64_t > &final_states)</div><div class="ttdef"><b>Definition:</b> <a href="sat_2table_8cc_source.html#l00594">sat/table.cc:594</a></div></div>
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<div class="ttc" id="anamespaceoperations__research_html"><div class="ttname"><a href="namespaceoperations__research.html">operations_research</a></div><div class="ttdoc">Collection of objects used to extend the Constraint Solver library.</div><div class="ttdef"><b>Definition:</b> <a href="dense__doubly__linked__list_8h_source.html#l00021">dense_doubly_linked_list.h:21</a></div></div>
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