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<a href="util_2permutation_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>
<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 &quot;License&quot;);</span></div>
<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>
<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>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">//</span></div>
<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>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">//</span></div>
<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>
<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 &quot;AS IS&quot; BASIS,</span></div>
<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>
<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>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment">// limitations under the License.</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment">//</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment">// Classes for permuting indexable, ordered containers of data without</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment">// depending on that data to be accessible in any particular way. The</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment">// client needs to give us two things:</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment">// 1. a permutation to apply to some container(s) of data, and</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment">// 2. a description of how to move data around in the container(s).</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="comment">//</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="comment">// The permutation (1) comes to us in the form of an array argument to</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="comment">// PermutationApplier::Apply(), along with index values that tell us</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="comment">// where in that array the permutation of interest lies. Typically</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="comment">// those index values will span the entire array that describes the</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="comment">// permutation.</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="comment">//</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="comment">// Applying a permutation involves decomposing the permutation into</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="comment">// disjoint cycles and walking each element of the underlying data one</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="comment">// step around the unique cycle in which it participates. The</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="comment">// decomposition into disjoint cycles is done implicitly on the fly as</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="comment">// the code in PermutationApplier::Apply() advances through the array</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="comment">// describing the permutation. As an important piece of bookkeeping to</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="comment">// support the decomposition into cycles, the elements of the</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="comment">// permutation array typically get modified somehow to indicate which</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="comment">// ones have already been used.</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="comment">//</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="comment">// At first glance, it would seem that if the containers are</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="comment">// indexable, we don&#39;t need anything more complicated than just the</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="comment">// permutation and the container of data we want to permute; it would</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="comment">// seem we can just use the container&#39;s operator[] to retrieve and</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="comment">// assign elements within the container. Unfortunately it&#39;s not so</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="comment">// simple because the containers of interest can be indexable without</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="comment">// providing any consistent way of accessing their contents that</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="comment">// applies to all the containers of interest. For instance, if we</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="comment">// could insist that every indexable container must define an lvalue</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="comment">// operator[]() we could simply use that for the assignments we need</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="comment">// to do while walking around cycles of the permutation. But we cannot</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="comment">// insist on any such thing. To see why, consider the PackedArray</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="comment">// class template in ortools/util/packed_array.h</span></div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="comment">// where operator[] is supplied for rvalues, but because each logical</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="comment">// array element is packed across potentially multiple instances of</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="comment">// the underlying data type that the C++ language knows about, there</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="comment">// is no way to have a C++ reference to an element of a</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span><span class="comment">// PackedArray. There are other such examples besides PackedArray,</span></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="comment">// too. This is the main reason we need a codified description (2) of</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><span class="comment">// how to move data around in the indexable container. That</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="comment">// description comes to us via the PermutationApplier constructor&#39;s</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="comment">// argument which is a PermutationCycleHandler instance. Such an</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="comment">// object has three important methods defined: SetTempFromIndex(),</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span><span class="comment">// SetIndexFromIndex(), and SetIndexFromTemp(). Those methods embody</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span><span class="comment">// all we need to know about how to move data in the indexable</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="comment">// container(s) underlying the PermutationCycleHandler.</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="comment">//</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span><span class="comment">// Another reason we need the description (2) of how to move elements</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span><span class="comment">// around in the container(s) is that it is often important to permute</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span><span class="comment">// side-by-side containers of elements according to the same</span></div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="comment">// permutation. This situation, too, is covered by defining a</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span><span class="comment">// PermutationCycleHandler that knows about multiple underlying</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span><span class="comment">// indexable containers.</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><span class="comment">//</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span><span class="comment">// The above-mentioned PermutationCycleHandler methods embody</span></div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span><span class="comment">// knowledge of how to assign elements. It happens that</span></div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span><span class="comment">// PermutationCycleHandler is also a convenient place to embody the</span></div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span><span class="comment">// knowledge of how to keep track of which permutation elements have</span></div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span><span class="comment">// been consumed by the process of walking data around cycles. We</span></div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span><span class="comment">// depend on the PermutationCycleHandler instance we&#39;re given to</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span><span class="comment">// define SetSeen() and Unseen() methods for that purpose.</span></div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span><span class="comment">//</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span><span class="comment">// For the common case in which elements can be accessed using</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span><span class="comment">// operator[](), we provide the class template</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span><span class="comment">// ArrayIndexCycleHandler.</span></div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> </div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span><span class="preprocessor">#ifndef OR_TOOLS_UTIL_PERMUTATION_H_</span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span><span class="preprocessor">#define OR_TOOLS_UTIL_PERMUTATION_H_</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span><span class="preprocessor">#include &quot;<a class="code" href="base_2logging_8h.html">ortools/base/logging.h</a>&quot;</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span><span class="preprocessor">#include &quot;<a class="code" href="macros_8h.html">ortools/base/macros.h</a>&quot;</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> </div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceoperations__research.html">operations_research</a> {</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> </div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span><span class="comment">// Abstract base class template defining the interface needed by</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span><span class="comment">// PermutationApplier to handle a single cycle of a permutation.</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> IndexType&gt;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_permutation_cycle_handler.html"> 94</a></span><span class="keyword">class </span><a class="code hl_class" href="classoperations__research_1_1_permutation_cycle_handler.html">PermutationCycleHandler</a> {</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="comment">// Sets the internal temporary storage from the given index in the</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="comment">// underlying container(s).</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_permutation_cycle_handler.html#ad4d9224715c540e6d5f0d0243dd32cb6"> 98</a></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_permutation_cycle_handler.html#ad4d9224715c540e6d5f0d0243dd32cb6">SetTempFromIndex</a>(IndexType source) = 0;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="comment">// Moves a data element one step along its cycle.</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_permutation_cycle_handler.html#ae61d5d91d5023dde51c67bfd5a35be38"> 101</a></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_permutation_cycle_handler.html#ae61d5d91d5023dde51c67bfd5a35be38">SetIndexFromIndex</a>(IndexType source,</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> IndexType destination) <span class="keyword">const</span> = 0;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> </div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="comment">// Sets a data element from the temporary.</span></div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_permutation_cycle_handler.html#a297809405606f01d1fe7f6f01da99c46"> 105</a></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_permutation_cycle_handler.html#a297809405606f01d1fe7f6f01da99c46">SetIndexFromTemp</a>(IndexType destination) <span class="keyword">const</span> = 0;</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> </div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// Marks an element of the permutation as handled by</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="comment">// PermutationHandler::Apply(), meaning that we have read the</span></div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="comment">// corresponding value from the data to be permuted, and put that</span></div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="comment">// value somewhere (either in the temp or in its ultimate</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="comment">// destination in the data.</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="comment">//</span></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="comment">// This method must be overridden in implementations where it is</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="comment">// called. If an implementation doesn&#39;t call it, no need to</span></div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="comment">// override.</span></div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_permutation_cycle_handler.html#ae3e31d82816bf98f8684c6199d458763"> 116</a></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_permutation_cycle_handler.html#ae3e31d82816bf98f8684c6199d458763">SetSeen</a>(IndexType* unused_permutation_element)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda">FATAL</a>) &lt;&lt; <span class="stringliteral">&quot;Base implementation of SetSeen() must not be called.&quot;</span>;</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> }</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="comment">// Returns true iff the given element of the permutation is unseen,</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="comment">// meaning that it has not yet been handled by</span></div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="comment">// PermutationApplier::Apply().</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="comment">//</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="comment">// This method must be overridden in implementations where it is</span></div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="comment">// called. If an implementation doesn&#39;t call it, no need to</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="comment">// override.</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_permutation_cycle_handler.html#ab52116a3e3ec67c9bc72e748854aac8b"> 127</a></span> <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1_permutation_cycle_handler.html#ab52116a3e3ec67c9bc72e748854aac8b">Unseen</a>(IndexType unused_permutation_element)<span class="keyword"> const </span>{</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <a class="code hl_define" href="base_2logging_8h.html#accad43a85d781d53381cd53a9894b6ae">LOG</a>(<a class="code hl_variable" href="log__severity_8h.html#acdd38e3c9f22f127d7776920e3079eda">FATAL</a>) &lt;&lt; <span class="stringliteral">&quot;Base implementation of Unseen() must not be called.&quot;</span>;</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> }</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_permutation_cycle_handler.html#a4a3669144be4386ab3b7b66739d88c27"> 132</a></span> <span class="keyword">virtual</span> <a class="code hl_function" href="classoperations__research_1_1_permutation_cycle_handler.html#a4a3669144be4386ab3b7b66739d88c27">~PermutationCycleHandler</a>() {}</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> </div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keyword">protected</span>:</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_permutation_cycle_handler.html#af820d18f1e87854f915ae7b4d93cb30e"> 135</a></span> <a class="code hl_function" href="classoperations__research_1_1_permutation_cycle_handler.html#af820d18f1e87854f915ae7b4d93cb30e">PermutationCycleHandler</a>() {}</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> </div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> DISALLOW_COPY_AND_ASSIGN(<a class="code hl_class" href="classoperations__research_1_1_permutation_cycle_handler.html">PermutationCycleHandler</a>);</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span>};</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span><span class="comment">// A generic cycle handler class for the common case in which the</span></div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span><span class="comment">// object to be permuted is indexable with T&amp; operator[](int), and the</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span><span class="comment">// permutation is represented by a mutable array of nonnegative</span></div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span><span class="comment">// int-typed index values. To mark a permutation element as seen, we</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span><span class="comment">// replace it by its ones-complement value.</span></div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> DataType, <span class="keyword">typename</span> IndexType&gt;</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_array_index_cycle_handler.html"> 147</a></span><span class="keyword">class </span><a class="code hl_class" href="classoperations__research_1_1_array_index_cycle_handler.html">ArrayIndexCycleHandler</a> : <span class="keyword">public</span> <a class="code hl_class" href="classoperations__research_1_1_permutation_cycle_handler.html">PermutationCycleHandler</a>&lt;IndexType&gt; {</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_array_index_cycle_handler.html#a93756027e2b1e6413fb2b28f2f3dc8fb"> 149</a></span> <span class="keyword">explicit</span> <a class="code hl_function" href="classoperations__research_1_1_array_index_cycle_handler.html#a93756027e2b1e6413fb2b28f2f3dc8fb">ArrayIndexCycleHandler</a>(DataType* data) : data_(data) {}</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> </div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_array_index_cycle_handler.html#abfc57246e84a5ab1ab3a9a4cf21da1e7"> 151</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_array_index_cycle_handler.html#abfc57246e84a5ab1ab3a9a4cf21da1e7">SetTempFromIndex</a>(IndexType source)<span class="keyword"> override </span>{ temp_ = data_[source]; }</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_array_index_cycle_handler.html#a3eedb8a1433ae30337e5049dff16d01a"> 152</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_array_index_cycle_handler.html#a3eedb8a1433ae30337e5049dff16d01a">SetIndexFromIndex</a>(IndexType source,</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> IndexType destination)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> data_[destination] = data_[source];</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> }</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_array_index_cycle_handler.html#a431837bdb0d1243e60a21f1c9c883815"> 156</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_array_index_cycle_handler.html#a431837bdb0d1243e60a21f1c9c883815">SetIndexFromTemp</a>(IndexType destination)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> data_[destination] = temp_;</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> }</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_array_index_cycle_handler.html#af29d24035a97894acd5f323cefa7bd3d"> 159</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_array_index_cycle_handler.html#af29d24035a97894acd5f323cefa7bd3d">SetSeen</a>(IndexType* permutation_element)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> *permutation_element = -*permutation_element - 1;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> }</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_array_index_cycle_handler.html#aba1aa71b495127184d22f40f93ae5d27"> 162</a></span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classoperations__research_1_1_array_index_cycle_handler.html#aba1aa71b495127184d22f40f93ae5d27">Unseen</a>(IndexType permutation_element)<span class="keyword"> const override </span>{</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keywordflow">return</span> permutation_element &gt;= 0;</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> }</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <span class="comment">// Pointer to the base of the array of data to be permuted.</span></div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> DataType* data_;</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> </div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="comment">// Temporary storage for the one extra element we need.</span></div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> DataType temp_;</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> </div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> DISALLOW_COPY_AND_ASSIGN(<a class="code hl_class" href="classoperations__research_1_1_array_index_cycle_handler.html">ArrayIndexCycleHandler</a>);</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span>};</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> </div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span><span class="comment">// Note that this template is not implemented in an especially</span></div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span><span class="comment">// performance-sensitive way. In particular, it makes multiple virtual</span></div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span><span class="comment">// method calls for each element of the permutation.</span></div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span><span class="keyword">template</span> &lt;<span class="keyword">typename</span> IndexType&gt;</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_permutation_applier.html"> 180</a></span><span class="keyword">class </span><a class="code hl_class" href="classoperations__research_1_1_permutation_applier.html">PermutationApplier</a> {</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_permutation_applier.html#ab470d6d56a8a4f8a2389971c1e125a45"> 182</a></span> <span class="keyword">explicit</span> <a class="code hl_function" href="classoperations__research_1_1_permutation_applier.html#ab470d6d56a8a4f8a2389971c1e125a45">PermutationApplier</a>(<a class="code hl_class" href="classoperations__research_1_1_permutation_cycle_handler.html">PermutationCycleHandler&lt;IndexType&gt;</a>* cycle_handler)</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> : cycle_handler_(cycle_handler) {}</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> </div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"><a class="line" href="classoperations__research_1_1_permutation_applier.html#ad4775eecdf6f1fcbddac8c58f4f52c4b"> 185</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="classoperations__research_1_1_permutation_applier.html#ad4775eecdf6f1fcbddac8c58f4f52c4b">Apply</a>(IndexType permutation[], <span class="keywordtype">int</span> permutation_start,</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keywordtype">int</span> permutation_end) {</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <span class="keywordflow">for</span> (IndexType current = permutation_start; current &lt; permutation_end;</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> ++current) {</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> IndexType <a class="code hl_variable" href="constraint__solver_8cc.html#a395f613555f398dd389670bb4c2a4599">next</a> = permutation[current];</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="comment">// cycle_start is only for debugging.</span></div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keyword">const</span> IndexType cycle_start = current;</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="keywordflow">if</span> (cycle_handler_-&gt;Unseen(<a class="code hl_variable" href="constraint__solver_8cc.html#a395f613555f398dd389670bb4c2a4599">next</a>)) {</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> cycle_handler_-&gt;SetSeen(&amp;permutation[current]);</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(!cycle_handler_-&gt;Unseen(permutation[current]));</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> cycle_handler_-&gt;SetTempFromIndex(current);</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keywordflow">while</span> (cycle_handler_-&gt;Unseen(permutation[<a class="code hl_variable" href="constraint__solver_8cc.html#a395f613555f398dd389670bb4c2a4599">next</a>])) {</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> cycle_handler_-&gt;SetIndexFromIndex(<a class="code hl_variable" href="constraint__solver_8cc.html#a395f613555f398dd389670bb4c2a4599">next</a>, current);</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> current = <a class="code hl_variable" href="constraint__solver_8cc.html#a395f613555f398dd389670bb4c2a4599">next</a>;</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <a class="code hl_variable" href="constraint__solver_8cc.html#a395f613555f398dd389670bb4c2a4599">next</a> = permutation[<a class="code hl_variable" href="constraint__solver_8cc.html#a395f613555f398dd389670bb4c2a4599">next</a>];</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> cycle_handler_-&gt;SetSeen(&amp;permutation[current]);</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <a class="code hl_define" href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a>(!cycle_handler_-&gt;Unseen(permutation[current]));</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> }</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> cycle_handler_-&gt;SetIndexFromTemp(current);</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="comment">// Set current back to the start of this cycle.</span></div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> current = <a class="code hl_variable" href="constraint__solver_8cc.html#a395f613555f398dd389670bb4c2a4599">next</a>;</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> }</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <a class="code hl_define" href="base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a>(cycle_start, current);</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> }</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> }</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> </div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <a class="code hl_class" href="classoperations__research_1_1_permutation_cycle_handler.html">PermutationCycleHandler&lt;IndexType&gt;</a>* cycle_handler_;</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> </div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> DISALLOW_COPY_AND_ASSIGN(<a class="code hl_class" href="classoperations__research_1_1_permutation_applier.html">PermutationApplier</a>);</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span>};</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span>} <span class="comment">// namespace operations_research</span></div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span><span class="preprocessor">#endif </span><span class="comment">// OR_TOOLS_UTIL_PERMUTATION_H_</span></div>
<div class="ttc" id="abase_2logging_8h_html"><div class="ttname"><a href="base_2logging_8h.html">logging.h</a></div></div>
<div class="ttc" id="abase_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#l00420">base/logging.h:420</a></div></div>
<div class="ttc" id="abase_2logging_8h_html_ae17f8119c108cf3070bad3449c7e0006"><div class="ttname"><a href="base_2logging_8h.html#ae17f8119c108cf3070bad3449c7e0006">DCHECK</a></div><div class="ttdeci">#define DCHECK(condition)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00890">base/logging.h:890</a></div></div>
<div class="ttc" id="abase_2logging_8h_html_ae89df3243bbb8341130c7b3f44145ea0"><div class="ttname"><a href="base_2logging_8h.html#ae89df3243bbb8341130c7b3f44145ea0">DCHECK_EQ</a></div><div class="ttdeci">#define DCHECK_EQ(val1, val2)</div><div class="ttdef"><b>Definition:</b> <a href="base_2logging_8h_source.html#l00891">base/logging.h:891</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_array_index_cycle_handler_html"><div class="ttname"><a href="classoperations__research_1_1_array_index_cycle_handler.html">operations_research::ArrayIndexCycleHandler</a></div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00147">util/permutation.h:147</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_array_index_cycle_handler_html_a3eedb8a1433ae30337e5049dff16d01a"><div class="ttname"><a href="classoperations__research_1_1_array_index_cycle_handler.html#a3eedb8a1433ae30337e5049dff16d01a">operations_research::ArrayIndexCycleHandler::SetIndexFromIndex</a></div><div class="ttdeci">void SetIndexFromIndex(IndexType source, IndexType destination) const override</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00152">util/permutation.h:152</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_array_index_cycle_handler_html_a431837bdb0d1243e60a21f1c9c883815"><div class="ttname"><a href="classoperations__research_1_1_array_index_cycle_handler.html#a431837bdb0d1243e60a21f1c9c883815">operations_research::ArrayIndexCycleHandler::SetIndexFromTemp</a></div><div class="ttdeci">void SetIndexFromTemp(IndexType destination) const override</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00156">util/permutation.h:156</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_array_index_cycle_handler_html_a93756027e2b1e6413fb2b28f2f3dc8fb"><div class="ttname"><a href="classoperations__research_1_1_array_index_cycle_handler.html#a93756027e2b1e6413fb2b28f2f3dc8fb">operations_research::ArrayIndexCycleHandler::ArrayIndexCycleHandler</a></div><div class="ttdeci">ArrayIndexCycleHandler(DataType *data)</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00149">util/permutation.h:149</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_array_index_cycle_handler_html_aba1aa71b495127184d22f40f93ae5d27"><div class="ttname"><a href="classoperations__research_1_1_array_index_cycle_handler.html#aba1aa71b495127184d22f40f93ae5d27">operations_research::ArrayIndexCycleHandler::Unseen</a></div><div class="ttdeci">bool Unseen(IndexType permutation_element) const override</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00162">util/permutation.h:162</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_array_index_cycle_handler_html_abfc57246e84a5ab1ab3a9a4cf21da1e7"><div class="ttname"><a href="classoperations__research_1_1_array_index_cycle_handler.html#abfc57246e84a5ab1ab3a9a4cf21da1e7">operations_research::ArrayIndexCycleHandler::SetTempFromIndex</a></div><div class="ttdeci">void SetTempFromIndex(IndexType source) override</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00151">util/permutation.h:151</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_array_index_cycle_handler_html_af29d24035a97894acd5f323cefa7bd3d"><div class="ttname"><a href="classoperations__research_1_1_array_index_cycle_handler.html#af29d24035a97894acd5f323cefa7bd3d">operations_research::ArrayIndexCycleHandler::SetSeen</a></div><div class="ttdeci">void SetSeen(IndexType *permutation_element) const override</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00159">util/permutation.h:159</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_permutation_applier_html"><div class="ttname"><a href="classoperations__research_1_1_permutation_applier.html">operations_research::PermutationApplier</a></div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00180">util/permutation.h:180</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_permutation_applier_html_ab470d6d56a8a4f8a2389971c1e125a45"><div class="ttname"><a href="classoperations__research_1_1_permutation_applier.html#ab470d6d56a8a4f8a2389971c1e125a45">operations_research::PermutationApplier::PermutationApplier</a></div><div class="ttdeci">PermutationApplier(PermutationCycleHandler&lt; IndexType &gt; *cycle_handler)</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00182">util/permutation.h:182</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_permutation_applier_html_ad4775eecdf6f1fcbddac8c58f4f52c4b"><div class="ttname"><a href="classoperations__research_1_1_permutation_applier.html#ad4775eecdf6f1fcbddac8c58f4f52c4b">operations_research::PermutationApplier::Apply</a></div><div class="ttdeci">void Apply(IndexType permutation[], int permutation_start, int permutation_end)</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00185">util/permutation.h:185</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_permutation_cycle_handler_html"><div class="ttname"><a href="classoperations__research_1_1_permutation_cycle_handler.html">operations_research::PermutationCycleHandler</a></div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00094">util/permutation.h:94</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_permutation_cycle_handler_html_a297809405606f01d1fe7f6f01da99c46"><div class="ttname"><a href="classoperations__research_1_1_permutation_cycle_handler.html#a297809405606f01d1fe7f6f01da99c46">operations_research::PermutationCycleHandler::SetIndexFromTemp</a></div><div class="ttdeci">virtual void SetIndexFromTemp(IndexType destination) const =0</div></div>
<div class="ttc" id="aclassoperations__research_1_1_permutation_cycle_handler_html_a4a3669144be4386ab3b7b66739d88c27"><div class="ttname"><a href="classoperations__research_1_1_permutation_cycle_handler.html#a4a3669144be4386ab3b7b66739d88c27">operations_research::PermutationCycleHandler::~PermutationCycleHandler</a></div><div class="ttdeci">virtual ~PermutationCycleHandler()</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00132">util/permutation.h:132</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_permutation_cycle_handler_html_ab52116a3e3ec67c9bc72e748854aac8b"><div class="ttname"><a href="classoperations__research_1_1_permutation_cycle_handler.html#ab52116a3e3ec67c9bc72e748854aac8b">operations_research::PermutationCycleHandler::Unseen</a></div><div class="ttdeci">virtual bool Unseen(IndexType unused_permutation_element) const</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00127">util/permutation.h:127</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_permutation_cycle_handler_html_ad4d9224715c540e6d5f0d0243dd32cb6"><div class="ttname"><a href="classoperations__research_1_1_permutation_cycle_handler.html#ad4d9224715c540e6d5f0d0243dd32cb6">operations_research::PermutationCycleHandler::SetTempFromIndex</a></div><div class="ttdeci">virtual void SetTempFromIndex(IndexType source)=0</div></div>
<div class="ttc" id="aclassoperations__research_1_1_permutation_cycle_handler_html_ae3e31d82816bf98f8684c6199d458763"><div class="ttname"><a href="classoperations__research_1_1_permutation_cycle_handler.html#ae3e31d82816bf98f8684c6199d458763">operations_research::PermutationCycleHandler::SetSeen</a></div><div class="ttdeci">virtual void SetSeen(IndexType *unused_permutation_element) const</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00116">util/permutation.h:116</a></div></div>
<div class="ttc" id="aclassoperations__research_1_1_permutation_cycle_handler_html_ae61d5d91d5023dde51c67bfd5a35be38"><div class="ttname"><a href="classoperations__research_1_1_permutation_cycle_handler.html#ae61d5d91d5023dde51c67bfd5a35be38">operations_research::PermutationCycleHandler::SetIndexFromIndex</a></div><div class="ttdeci">virtual void SetIndexFromIndex(IndexType source, IndexType destination) const =0</div></div>
<div class="ttc" id="aclassoperations__research_1_1_permutation_cycle_handler_html_af820d18f1e87854f915ae7b4d93cb30e"><div class="ttname"><a href="classoperations__research_1_1_permutation_cycle_handler.html#af820d18f1e87854f915ae7b4d93cb30e">operations_research::PermutationCycleHandler::PermutationCycleHandler</a></div><div class="ttdeci">PermutationCycleHandler()</div><div class="ttdef"><b>Definition:</b> <a href="util_2permutation_8h_source.html#l00135">util/permutation.h:135</a></div></div>
<div class="ttc" id="aconstraint__solver_8cc_html_a395f613555f398dd389670bb4c2a4599"><div class="ttname"><a href="constraint__solver_8cc.html#a395f613555f398dd389670bb4c2a4599">next</a></div><div class="ttdeci">Block * next</div><div class="ttdef"><b>Definition:</b> <a href="constraint__solver_8cc_source.html#l00678">constraint_solver.cc:678</a></div></div>
<div class="ttc" id="alog__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="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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