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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) 2003-2007 |
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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 const Value ConstReturnValue; |
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| 154 | typedef const 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 const Value ConstReturnValue; |
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| 182 | typedef const 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 ArcNumTagIndicator { |
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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 ArcNumTagIndicator< |
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| 225 | Graph, |
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| 226 | typename enable_if<typename Graph::ArcNumTag, 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 FindArcTagIndicator { |
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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 FindArcTagIndicator< |
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| 238 | Graph, |
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| 239 | typename enable_if<typename Graph::FindArcTag, 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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