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