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182 lines
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<div class="headertitle"><div class="title">drat_writer.cc</div></div>
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<a href="drat__writer_8cc.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">#include "<a class="code" href="drat__writer_8h.html">ortools/sat/drat_writer.h</a>"</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <string></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include "<a class="code" href="base_2logging_8h.html">ortools/base/logging.h</a>"</span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="preprocessor">#if !defined(__PORTABLE_PLATFORM__)</span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include "<a class="code" href="base_2file_8h.html">ortools/base/file.h</a>"</span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#endif </span><span class="comment">// !__PORTABLE_PLATFORM__</span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include "absl/status/status.h"</span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include "absl/strings/str_format.h"</span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include "absl/types/span.h"</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"><a class="line" href="classoperations__research_1_1sat_1_1_drat_writer.html#aaddc7cfa3444e264600a1a3a192de532"> 30</a></span><a class="code hl_function" href="classoperations__research_1_1sat_1_1_drat_writer.html#aaddc7cfa3444e264600a1a3a192de532">DratWriter::~DratWriter</a>() {</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="keywordflow">if</span> (output_ != <span class="keyword">nullptr</span>) {</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#if !defined(__PORTABLE_PLATFORM__)</span></div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <a class="code hl_define" href="base_2logging_8h.html#a9f96ed9f06763f0821fdbb4d29031d8d">CHECK_OK</a>(<a class="code hl_function" href="namespacefile.html#a076b0cad1794671953aa9a8b8f9cf943">file::WriteString</a>(output_, buffer_, <a class="code hl_function" href="namespacefile.html#a1abdf766bb120d38e7a4dfa200972681">file::Defaults</a>()));</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <a class="code hl_define" href="base_2logging_8h.html#a9f96ed9f06763f0821fdbb4d29031d8d">CHECK_OK</a>(output_-><a class="code hl_function" href="class_file.html#aef7e3d18ef267f23f64ad397fa359cc1">Close</a>(<a class="code hl_function" href="namespacefile.html#a1abdf766bb120d38e7a4dfa200972681">file::Defaults</a>()));</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#endif </span><span class="comment">// !__PORTABLE_PLATFORM__</span></div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> }</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span>}</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_drat_writer.html#a98bacf41c50979896b4a5f5e41fb0ccf"> 39</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_drat_writer.html#a98bacf41c50979896b4a5f5e41fb0ccf">DratWriter::AddClause</a>(absl::Span<const Literal> clause) {</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> WriteClause(clause);</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span>}</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"><a class="line" href="classoperations__research_1_1sat_1_1_drat_writer.html#a18349231154d0f5eaee94fe213f347e6"> 43</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1sat_1_1_drat_writer.html#a18349231154d0f5eaee94fe213f347e6">DratWriter::DeleteClause</a>(absl::Span<const Literal> clause) {</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> buffer_ += <span class="stringliteral">"d "</span>;</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> WriteClause(clause);</div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span>}</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="keywordtype">void</span> DratWriter::WriteClause(absl::Span<const Literal> clause) {</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code hl_class" href="classoperations__research_1_1sat_1_1_literal.html">Literal</a> <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a> : clause) {</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> absl::StrAppendFormat(&buffer_, <span class="stringliteral">"%d "</span>, <a class="code hl_variable" href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a>.SignedValue());</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> buffer_ += <span class="stringliteral">"0\n"</span>;</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keywordflow">if</span> (buffer_.size() > 10000) {</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span><span class="preprocessor">#if !defined(__PORTABLE_PLATFORM__)</span></div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <a class="code hl_define" href="base_2logging_8h.html#a9f96ed9f06763f0821fdbb4d29031d8d">CHECK_OK</a>(<a class="code hl_function" href="namespacefile.html#a076b0cad1794671953aa9a8b8f9cf943">file::WriteString</a>(output_, buffer_, <a class="code hl_function" href="namespacefile.html#a1abdf766bb120d38e7a4dfa200972681">file::Defaults</a>()));</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><span class="preprocessor">#endif </span><span class="comment">// !__PORTABLE_PLATFORM__</span></div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> buffer_.clear();</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> }</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span>}</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span>} <span class="comment">// namespace sat</span></div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span>} <span class="comment">// namespace operations_research</span></div>
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<div class="ttc" id="abase_2file_8h_html"><div class="ttname"><a href="base_2file_8h.html">file.h</a></div></div>
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<div class="ttc" id="abase_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="abase_2logging_8h_html_a9f96ed9f06763f0821fdbb4d29031d8d"><div class="ttname"><a href="base_2logging_8h.html#a9f96ed9f06763f0821fdbb4d29031d8d">CHECK_OK</a></div><div class="ttdeci">#define CHECK_OK(x)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00044">base/logging.h:44</a></div></div>
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<div class="ttc" id="aclass_file_html_aef7e3d18ef267f23f64ad397fa359cc1"><div class="ttname"><a href="class_file.html#aef7e3d18ef267f23f64ad397fa359cc1">File::Close</a></div><div class="ttdeci">bool Close()</div><div class="ttdef"><b>Definition:</b> <a href="base_2file_8cc_source.html#l00048">base/file.cc:48</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_drat_writer_html_a18349231154d0f5eaee94fe213f347e6"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_drat_writer.html#a18349231154d0f5eaee94fe213f347e6">operations_research::sat::DratWriter::DeleteClause</a></div><div class="ttdeci">void DeleteClause(absl::Span< const Literal > clause)</div><div class="ttdef"><b>Definition:</b> <a href="drat__writer_8cc_source.html#l00043">drat_writer.cc:43</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_drat_writer_html_a98bacf41c50979896b4a5f5e41fb0ccf"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_drat_writer.html#a98bacf41c50979896b4a5f5e41fb0ccf">operations_research::sat::DratWriter::AddClause</a></div><div class="ttdeci">void AddClause(absl::Span< const Literal > clause)</div><div class="ttdef"><b>Definition:</b> <a href="drat__writer_8cc_source.html#l00039">drat_writer.cc:39</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_drat_writer_html_aaddc7cfa3444e264600a1a3a192de532"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_drat_writer.html#aaddc7cfa3444e264600a1a3a192de532">operations_research::sat::DratWriter::~DratWriter</a></div><div class="ttdeci">~DratWriter()</div><div class="ttdef"><b>Definition:</b> <a href="drat__writer_8cc_source.html#l00030">drat_writer.cc:30</a></div></div>
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<div class="ttc" id="aclassoperations__research_1_1sat_1_1_literal_html"><div class="ttname"><a href="classoperations__research_1_1sat_1_1_literal.html">operations_research::sat::Literal</a></div><div class="ttdef"><b>Definition:</b> <a href="sat__base_8h_source.html#l00067">sat_base.h:67</a></div></div>
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<div class="ttc" id="adrat__writer_8h_html"><div class="ttname"><a href="drat__writer_8h.html">drat_writer.h</a></div></div>
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<div class="ttc" id="anamespacefile_html_a076b0cad1794671953aa9a8b8f9cf943"><div class="ttname"><a href="namespacefile.html#a076b0cad1794671953aa9a8b8f9cf943">file::WriteString</a></div><div class="ttdeci">absl::Status WriteString(File *file, const absl::string_view &contents, int flags)</div><div class="ttdef"><b>Definition:</b> <a href="base_2file_8cc_source.html#l00184">base/file.cc:184</a></div></div>
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<div class="ttc" id="anamespacefile_html_a1abdf766bb120d38e7a4dfa200972681"><div class="ttname"><a href="namespacefile.html#a1abdf766bb120d38e7a4dfa200972681">file::Defaults</a></div><div class="ttdeci">int Defaults()</div><div class="ttdef"><b>Definition:</b> <a href="base_2file_8h_source.html#l00120">base/file.h:120</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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<div class="ttc" id="aoptimization_8cc_html_af63dcc00f2023fdf498e0829e6fb8a6b"><div class="ttname"><a href="optimization_8cc.html#af63dcc00f2023fdf498e0829e6fb8a6b">literal</a></div><div class="ttdeci">Literal literal</div><div class="ttdef"><b>Definition:</b> <a href="optimization_8cc_source.html#l00089">optimization.cc:89</a></div></div>
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<div class="ttc" id="asat__base_8h_html"><div class="ttname"><a href="sat__base_8h.html">sat_base.h</a></div></div>
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