1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/lemon/bits/traits.h Sun Jan 20 20:43:48 2008 +0100
1.3 @@ -0,0 +1,272 @@
1.4 +
1.5 +/* -*- C++ -*-
1.6 + *
1.7 + * This file is a part of LEMON, a generic C++ optimization library
1.8 + *
1.9 + * Copyright (C) 2003-2007
1.10 + * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
1.11 + * (Egervary Research Group on Combinatorial Optimization, EGRES).
1.12 + *
1.13 + * Permission to use, modify and distribute this software is granted
1.14 + * provided that this copyright notice appears in all copies. For
1.15 + * precise terms see the accompanying LICENSE file.
1.16 + *
1.17 + * This software is provided "AS IS" with no warranty of any kind,
1.18 + * express or implied, and with no claim as to its suitability for any
1.19 + * purpose.
1.20 + *
1.21 + */
1.22 +
1.23 +#ifndef LEMON_BITS_TRAITS_H
1.24 +#define LEMON_BITS_TRAITS_H
1.25 +
1.26 +#include <lemon/bits/utility.h>
1.27 +
1.28 +///\file
1.29 +///\brief Traits for graphs and maps
1.30 +///
1.31 +
1.32 +namespace lemon {
1.33 + template <typename _Graph, typename _Item>
1.34 + class ItemSetTraits {};
1.35 +
1.36 +
1.37 + template <typename Graph, typename Enable = void>
1.38 + struct NodeNotifierIndicator {
1.39 + typedef InvalidType Type;
1.40 + };
1.41 + template <typename Graph>
1.42 + struct NodeNotifierIndicator<
1.43 + Graph,
1.44 + typename enable_if<typename Graph::NodeNotifier::Notifier, void>::type
1.45 + > {
1.46 + typedef typename Graph::NodeNotifier Type;
1.47 + };
1.48 +
1.49 + template <typename _Graph>
1.50 + class ItemSetTraits<_Graph, typename _Graph::Node> {
1.51 + public:
1.52 +
1.53 + typedef _Graph Graph;
1.54 +
1.55 + typedef typename Graph::Node Item;
1.56 + typedef typename Graph::NodeIt ItemIt;
1.57 +
1.58 + typedef typename NodeNotifierIndicator<Graph>::Type ItemNotifier;
1.59 +
1.60 + template <typename _Value>
1.61 + class Map : public Graph::template NodeMap<_Value> {
1.62 + public:
1.63 + typedef typename Graph::template NodeMap<_Value> Parent;
1.64 + typedef typename Graph::template NodeMap<_Value> Type;
1.65 + typedef typename Parent::Value Value;
1.66 +
1.67 + Map(const Graph& _digraph) : Parent(_digraph) {}
1.68 + Map(const Graph& _digraph, const Value& _value)
1.69 + : Parent(_digraph, _value) {}
1.70 +
1.71 + };
1.72 +
1.73 + };
1.74 +
1.75 + template <typename Graph, typename Enable = void>
1.76 + struct ArcNotifierIndicator {
1.77 + typedef InvalidType Type;
1.78 + };
1.79 + template <typename Graph>
1.80 + struct ArcNotifierIndicator<
1.81 + Graph,
1.82 + typename enable_if<typename Graph::ArcNotifier::Notifier, void>::type
1.83 + > {
1.84 + typedef typename Graph::ArcNotifier Type;
1.85 + };
1.86 +
1.87 + template <typename _Graph>
1.88 + class ItemSetTraits<_Graph, typename _Graph::Arc> {
1.89 + public:
1.90 +
1.91 + typedef _Graph Graph;
1.92 +
1.93 + typedef typename Graph::Arc Item;
1.94 + typedef typename Graph::ArcIt ItemIt;
1.95 +
1.96 + typedef typename ArcNotifierIndicator<Graph>::Type ItemNotifier;
1.97 +
1.98 + template <typename _Value>
1.99 + class Map : public Graph::template ArcMap<_Value> {
1.100 + public:
1.101 + typedef typename Graph::template ArcMap<_Value> Parent;
1.102 + typedef typename Graph::template ArcMap<_Value> Type;
1.103 + typedef typename Parent::Value Value;
1.104 +
1.105 + Map(const Graph& _digraph) : Parent(_digraph) {}
1.106 + Map(const Graph& _digraph, const Value& _value)
1.107 + : Parent(_digraph, _value) {}
1.108 + };
1.109 +
1.110 + };
1.111 +
1.112 + template <typename Graph, typename Enable = void>
1.113 + struct EdgeNotifierIndicator {
1.114 + typedef InvalidType Type;
1.115 + };
1.116 + template <typename Graph>
1.117 + struct EdgeNotifierIndicator<
1.118 + Graph,
1.119 + typename enable_if<typename Graph::EdgeNotifier::Notifier, void>::type
1.120 + > {
1.121 + typedef typename Graph::EdgeNotifier Type;
1.122 + };
1.123 +
1.124 + template <typename _Graph>
1.125 + class ItemSetTraits<_Graph, typename _Graph::Edge> {
1.126 + public:
1.127 +
1.128 + typedef _Graph Graph;
1.129 +
1.130 + typedef typename Graph::Edge Item;
1.131 + typedef typename Graph::EdgeIt ItemIt;
1.132 +
1.133 + typedef typename EdgeNotifierIndicator<Graph>::Type ItemNotifier;
1.134 +
1.135 + template <typename _Value>
1.136 + class Map : public Graph::template EdgeMap<_Value> {
1.137 + public:
1.138 + typedef typename Graph::template EdgeMap<_Value> Parent;
1.139 + typedef typename Graph::template EdgeMap<_Value> Type;
1.140 + typedef typename Parent::Value Value;
1.141 +
1.142 + Map(const Graph& _digraph) : Parent(_digraph) {}
1.143 + Map(const Graph& _digraph, const Value& _value)
1.144 + : Parent(_digraph, _value) {}
1.145 + };
1.146 +
1.147 + };
1.148 +
1.149 + template <typename Map, typename Enable = void>
1.150 + struct MapTraits {
1.151 + typedef False ReferenceMapTag;
1.152 +
1.153 + typedef typename Map::Key Key;
1.154 + typedef typename Map::Value Value;
1.155 +
1.156 + typedef const Value ConstReturnValue;
1.157 + typedef const Value ReturnValue;
1.158 + };
1.159 +
1.160 + template <typename Map>
1.161 + struct MapTraits<
1.162 + Map, typename enable_if<typename Map::ReferenceMapTag, void>::type >
1.163 + {
1.164 + typedef True ReferenceMapTag;
1.165 +
1.166 + typedef typename Map::Key Key;
1.167 + typedef typename Map::Value Value;
1.168 +
1.169 + typedef typename Map::ConstReference ConstReturnValue;
1.170 + typedef typename Map::Reference ReturnValue;
1.171 +
1.172 + typedef typename Map::ConstReference ConstReference;
1.173 + typedef typename Map::Reference Reference;
1.174 + };
1.175 +
1.176 + template <typename MatrixMap, typename Enable = void>
1.177 + struct MatrixMapTraits {
1.178 + typedef False ReferenceMapTag;
1.179 +
1.180 + typedef typename MatrixMap::FirstKey FirstKey;
1.181 + typedef typename MatrixMap::SecondKey SecondKey;
1.182 + typedef typename MatrixMap::Value Value;
1.183 +
1.184 + typedef const Value ConstReturnValue;
1.185 + typedef const Value ReturnValue;
1.186 + };
1.187 +
1.188 + template <typename MatrixMap>
1.189 + struct MatrixMapTraits<
1.190 + MatrixMap, typename enable_if<typename MatrixMap::ReferenceMapTag,
1.191 + void>::type >
1.192 + {
1.193 + typedef True ReferenceMapTag;
1.194 +
1.195 + typedef typename MatrixMap::FirstKey FirstKey;
1.196 + typedef typename MatrixMap::SecondKey SecondKey;
1.197 + typedef typename MatrixMap::Value Value;
1.198 +
1.199 + typedef typename MatrixMap::ConstReference ConstReturnValue;
1.200 + typedef typename MatrixMap::Reference ReturnValue;
1.201 +
1.202 + typedef typename MatrixMap::ConstReference ConstReference;
1.203 + typedef typename MatrixMap::Reference Reference;
1.204 + };
1.205 +
1.206 + // Indicators for the tags
1.207 +
1.208 + template <typename Graph, typename Enable = void>
1.209 + struct NodeNumTagIndicator {
1.210 + static const bool value = false;
1.211 + };
1.212 +
1.213 + template <typename Graph>
1.214 + struct NodeNumTagIndicator<
1.215 + Graph,
1.216 + typename enable_if<typename Graph::NodeNumTag, void>::type
1.217 + > {
1.218 + static const bool value = true;
1.219 + };
1.220 +
1.221 + template <typename Graph, typename Enable = void>
1.222 + struct ArcNumTagIndicator {
1.223 + static const bool value = false;
1.224 + };
1.225 +
1.226 + template <typename Graph>
1.227 + struct ArcNumTagIndicator<
1.228 + Graph,
1.229 + typename enable_if<typename Graph::ArcNumTag, void>::type
1.230 + > {
1.231 + static const bool value = true;
1.232 + };
1.233 +
1.234 + template <typename Graph, typename Enable = void>
1.235 + struct FindArcTagIndicator {
1.236 + static const bool value = false;
1.237 + };
1.238 +
1.239 + template <typename Graph>
1.240 + struct FindArcTagIndicator<
1.241 + Graph,
1.242 + typename enable_if<typename Graph::FindArcTag, void>::type
1.243 + > {
1.244 + static const bool value = true;
1.245 + };
1.246 +
1.247 + template <typename Graph, typename Enable = void>
1.248 + struct UndirectedTagIndicator {
1.249 + static const bool value = false;
1.250 + };
1.251 +
1.252 + template <typename Graph>
1.253 + struct UndirectedTagIndicator<
1.254 + Graph,
1.255 + typename enable_if<typename Graph::UndirectedTag, void>::type
1.256 + > {
1.257 + static const bool value = true;
1.258 + };
1.259 +
1.260 + template <typename Graph, typename Enable = void>
1.261 + struct BuildTagIndicator {
1.262 + static const bool value = false;
1.263 + };
1.264 +
1.265 + template <typename Graph>
1.266 + struct BuildTagIndicator<
1.267 + Graph,
1.268 + typename enable_if<typename Graph::BuildTag, void>::type
1.269 + > {
1.270 + static const bool value = true;
1.271 + };
1.272 +
1.273 +}
1.274 +
1.275 +#endif