1 | |
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2 | /* -*- C++ -*- |
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3 | * |
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4 | * This file is a part of LEMON, a generic C++ optimization library |
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5 | * |
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6 | * Copyright (C) 2003-2008 |
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7 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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8 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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9 | * |
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10 | * Permission to use, modify and distribute this software is granted |
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11 | * provided that this copyright notice appears in all copies. For |
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12 | * precise terms see the accompanying LICENSE file. |
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13 | * |
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14 | * This software is provided "AS IS" with no warranty of any kind, |
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15 | * express or implied, and with no claim as to its suitability for any |
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16 | * purpose. |
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17 | * |
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18 | */ |
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19 | |
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20 | #ifndef LEMON_BITS_TRAITS_H |
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21 | #define LEMON_BITS_TRAITS_H |
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22 | |
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23 | #include <lemon/bits/utility.h> |
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24 | |
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25 | ///\file |
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26 | ///\brief Traits for graphs and maps |
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27 | /// |
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28 | |
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29 | namespace lemon { |
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30 | template <typename _Graph, typename _Item> |
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31 | class ItemSetTraits {}; |
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32 | |
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33 | |
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34 | template <typename Graph, typename Enable = void> |
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35 | struct NodeNotifierIndicator { |
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36 | typedef InvalidType Type; |
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37 | }; |
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38 | template <typename Graph> |
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39 | struct NodeNotifierIndicator< |
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40 | Graph, |
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41 | typename enable_if<typename Graph::NodeNotifier::Notifier, void>::type |
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42 | > { |
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43 | typedef typename Graph::NodeNotifier Type; |
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44 | }; |
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45 | |
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46 | template <typename _Graph> |
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47 | class ItemSetTraits<_Graph, typename _Graph::Node> { |
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48 | public: |
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49 | |
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50 | typedef _Graph Graph; |
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51 | |
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52 | typedef typename Graph::Node Item; |
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53 | typedef typename Graph::NodeIt ItemIt; |
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54 | |
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55 | typedef typename NodeNotifierIndicator<Graph>::Type ItemNotifier; |
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56 | |
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57 | template <typename _Value> |
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58 | class Map : public Graph::template NodeMap<_Value> { |
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59 | public: |
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60 | typedef typename Graph::template NodeMap<_Value> Parent; |
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61 | typedef typename Graph::template NodeMap<_Value> Type; |
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62 | typedef typename Parent::Value Value; |
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63 | |
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64 | Map(const Graph& _digraph) : Parent(_digraph) {} |
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65 | Map(const Graph& _digraph, const Value& _value) |
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66 | : Parent(_digraph, _value) {} |
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67 | |
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68 | }; |
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69 | |
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70 | }; |
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71 | |
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72 | template <typename Graph, typename Enable = void> |
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73 | struct ArcNotifierIndicator { |
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74 | typedef InvalidType Type; |
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75 | }; |
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76 | template <typename Graph> |
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77 | struct ArcNotifierIndicator< |
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78 | Graph, |
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79 | typename enable_if<typename Graph::ArcNotifier::Notifier, void>::type |
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80 | > { |
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81 | typedef typename Graph::ArcNotifier Type; |
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82 | }; |
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83 | |
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84 | template <typename _Graph> |
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85 | class ItemSetTraits<_Graph, typename _Graph::Arc> { |
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86 | public: |
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87 | |
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88 | typedef _Graph Graph; |
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89 | |
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90 | typedef typename Graph::Arc Item; |
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91 | typedef typename Graph::ArcIt ItemIt; |
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92 | |
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93 | typedef typename ArcNotifierIndicator<Graph>::Type ItemNotifier; |
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94 | |
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95 | template <typename _Value> |
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96 | class Map : public Graph::template ArcMap<_Value> { |
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97 | public: |
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98 | typedef typename Graph::template ArcMap<_Value> Parent; |
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99 | typedef typename Graph::template ArcMap<_Value> Type; |
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100 | typedef typename Parent::Value Value; |
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101 | |
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102 | Map(const Graph& _digraph) : Parent(_digraph) {} |
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103 | Map(const Graph& _digraph, const Value& _value) |
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104 | : Parent(_digraph, _value) {} |
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105 | }; |
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106 | |
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107 | }; |
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108 | |
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109 | template <typename Graph, typename Enable = void> |
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110 | struct EdgeNotifierIndicator { |
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111 | typedef InvalidType Type; |
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112 | }; |
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113 | template <typename Graph> |
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114 | struct EdgeNotifierIndicator< |
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115 | Graph, |
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116 | typename enable_if<typename Graph::EdgeNotifier::Notifier, void>::type |
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117 | > { |
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118 | typedef typename Graph::EdgeNotifier Type; |
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119 | }; |
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120 | |
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121 | template <typename _Graph> |
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122 | class ItemSetTraits<_Graph, typename _Graph::Edge> { |
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123 | public: |
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124 | |
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125 | typedef _Graph Graph; |
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126 | |
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127 | typedef typename Graph::Edge Item; |
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128 | typedef typename Graph::EdgeIt ItemIt; |
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129 | |
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130 | typedef typename EdgeNotifierIndicator<Graph>::Type ItemNotifier; |
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131 | |
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132 | template <typename _Value> |
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133 | class Map : public Graph::template EdgeMap<_Value> { |
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134 | public: |
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135 | typedef typename Graph::template EdgeMap<_Value> Parent; |
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136 | typedef typename Graph::template EdgeMap<_Value> Type; |
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137 | typedef typename Parent::Value Value; |
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138 | |
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139 | Map(const Graph& _digraph) : Parent(_digraph) {} |
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140 | Map(const Graph& _digraph, const Value& _value) |
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141 | : Parent(_digraph, _value) {} |
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142 | }; |
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143 | |
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144 | }; |
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145 | |
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146 | template <typename Map, typename Enable = void> |
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147 | struct MapTraits { |
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148 | typedef False ReferenceMapTag; |
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149 | |
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150 | typedef typename Map::Key Key; |
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151 | typedef typename Map::Value Value; |
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152 | |
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153 | typedef Value ConstReturnValue; |
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154 | typedef Value ReturnValue; |
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155 | }; |
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156 | |
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157 | template <typename Map> |
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158 | struct MapTraits< |
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159 | Map, typename enable_if<typename Map::ReferenceMapTag, void>::type > |
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160 | { |
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161 | typedef True ReferenceMapTag; |
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162 | |
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163 | typedef typename Map::Key Key; |
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164 | typedef typename Map::Value Value; |
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165 | |
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166 | typedef typename Map::ConstReference ConstReturnValue; |
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167 | typedef typename Map::Reference ReturnValue; |
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168 | |
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169 | typedef typename Map::ConstReference ConstReference; |
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170 | typedef typename Map::Reference Reference; |
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171 | }; |
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172 | |
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173 | template <typename MatrixMap, typename Enable = void> |
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174 | struct MatrixMapTraits { |
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175 | typedef False ReferenceMapTag; |
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176 | |
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177 | typedef typename MatrixMap::FirstKey FirstKey; |
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178 | typedef typename MatrixMap::SecondKey SecondKey; |
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179 | typedef typename MatrixMap::Value Value; |
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180 | |
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181 | typedef Value ConstReturnValue; |
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182 | typedef Value ReturnValue; |
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183 | }; |
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184 | |
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185 | template <typename MatrixMap> |
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186 | struct MatrixMapTraits< |
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187 | MatrixMap, typename enable_if<typename MatrixMap::ReferenceMapTag, |
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188 | void>::type > |
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189 | { |
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190 | typedef True ReferenceMapTag; |
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191 | |
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192 | typedef typename MatrixMap::FirstKey FirstKey; |
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193 | typedef typename MatrixMap::SecondKey SecondKey; |
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194 | typedef typename MatrixMap::Value Value; |
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195 | |
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196 | typedef typename MatrixMap::ConstReference ConstReturnValue; |
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197 | typedef typename MatrixMap::Reference ReturnValue; |
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198 | |
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199 | typedef typename MatrixMap::ConstReference ConstReference; |
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200 | typedef typename MatrixMap::Reference Reference; |
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201 | }; |
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202 | |
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203 | // Indicators for the tags |
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204 | |
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205 | template <typename Graph, typename Enable = void> |
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206 | struct NodeNumTagIndicator { |
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207 | static const bool value = false; |
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208 | }; |
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209 | |
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210 | template <typename Graph> |
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211 | struct NodeNumTagIndicator< |
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212 | Graph, |
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213 | typename enable_if<typename Graph::NodeNumTag, void>::type |
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214 | > { |
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215 | static const bool value = true; |
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216 | }; |
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217 | |
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218 | template <typename Graph, typename Enable = void> |
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219 | struct EdgeNumTagIndicator { |
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220 | static const bool value = false; |
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221 | }; |
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222 | |
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223 | template <typename Graph> |
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224 | struct EdgeNumTagIndicator< |
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225 | Graph, |
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226 | typename enable_if<typename Graph::EdgeNumTag, void>::type |
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227 | > { |
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228 | static const bool value = true; |
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229 | }; |
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230 | |
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231 | template <typename Graph, typename Enable = void> |
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232 | struct FindEdgeTagIndicator { |
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233 | static const bool value = false; |
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234 | }; |
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235 | |
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236 | template <typename Graph> |
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237 | struct FindEdgeTagIndicator< |
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238 | Graph, |
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239 | typename enable_if<typename Graph::FindEdgeTag, void>::type |
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240 | > { |
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241 | static const bool value = true; |
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242 | }; |
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243 | |
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244 | template <typename Graph, typename Enable = void> |
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245 | struct UndirectedTagIndicator { |
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246 | static const bool value = false; |
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247 | }; |
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248 | |
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249 | template <typename Graph> |
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250 | struct UndirectedTagIndicator< |
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251 | Graph, |
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252 | typename enable_if<typename Graph::UndirectedTag, void>::type |
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253 | > { |
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254 | static const bool value = true; |
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255 | }; |
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256 | |
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257 | template <typename Graph, typename Enable = void> |
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258 | struct BuildTagIndicator { |
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259 | static const bool value = false; |
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260 | }; |
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261 | |
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262 | template <typename Graph> |
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263 | struct BuildTagIndicator< |
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264 | Graph, |
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265 | typename enable_if<typename Graph::BuildTag, void>::type |
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266 | > { |
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267 | static const bool value = true; |
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268 | }; |
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269 | |
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270 | } |
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271 | |
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272 | #endif |
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