deba@1719: /* -*- C++ -*-
deba@1719:  * lemon/traits.h - Part of LEMON, a generic C++ optimization library
deba@1719:  *
deba@1719:  * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
deba@1719:  * (Egervary Research Group on Combinatorial Optimization, EGRES).
deba@1719:  *
deba@1719:  * Permission to use, modify and distribute this software is granted
deba@1719:  * provided that this copyright notice appears in all copies. For
deba@1719:  * precise terms see the accompanying LICENSE file.
deba@1719:  *
deba@1719:  * This software is provided "AS IS" with no warranty of any kind,
deba@1719:  * express or implied, and with no claim as to its suitability for any
deba@1719:  * purpose.
deba@1719:  *
deba@1719:  */
deba@1719: 
deba@1719: #ifndef LEMON_TRAITS_H
deba@1719: #define LEMON_TRAITS_H
deba@1719: 
deba@1719: #include <lemon/utility.h>
deba@1719: 
deba@1719: ///\file
deba@1719: ///\brief Traits for graphs and maps
deba@1719: ///
deba@1719: 
deba@1719: namespace lemon {
deba@1719:   template <typename _Graph, typename _Item>
deba@1719:   class ItemSetTraits {};
deba@1719:   
deba@1719:   template <typename _Graph>
deba@1719:   class ItemSetTraits<_Graph, typename _Graph::Node> {
deba@1719:   public:
deba@1719:     
deba@1719:     typedef _Graph Graph;
deba@1719: 
deba@1719:     typedef typename Graph::Node Item;
deba@1719:     typedef typename Graph::NodeIt ItemIt;
deba@1719: 
deba@1719:     template <typename _Value>
deba@1719:     class Map : public Graph::template NodeMap<_Value> {
deba@1719:     public:
deba@1719:       typedef typename Graph::template NodeMap<_Value> Parent; 
deba@1719:       typedef typename Parent::Value Value;
deba@1719: 
deba@1719:       Map(const Graph& _graph) : Parent(_graph) {}
deba@1719:       Map(const Graph& _graph, const Value& _value) 
deba@1719: 	: Parent(_graph, _value) {}
deba@1719:     };
deba@1719: 
deba@1719:   };
deba@1719: 
deba@1719:   template <typename _Graph>
deba@1719:   class ItemSetTraits<_Graph, typename _Graph::Edge> {
deba@1719:   public:
deba@1719:     
deba@1719:     typedef _Graph Graph;
deba@1719: 
deba@1719:     typedef typename Graph::Edge Item;
deba@1719:     typedef typename Graph::EdgeIt ItemIt;
deba@1719: 
deba@1719:     template <typename _Value>
deba@1719:     class Map : public Graph::template EdgeMap<_Value> {
deba@1719:     public:
deba@1719:       typedef typename Graph::template EdgeMap<_Value> Parent; 
deba@1719:       typedef typename Parent::Value Value;
deba@1719: 
deba@1719:       Map(const Graph& _graph) : Parent(_graph) {}
deba@1719:       Map(const Graph& _graph, const Value& _value) 
deba@1719: 	: Parent(_graph, _value) {}
deba@1719:     };
deba@1719: 
deba@1719:   };
deba@1719: 
deba@1719:   template <typename _Graph>
deba@1719:   class ItemSetTraits<_Graph, typename _Graph::UndirEdge> {
deba@1719:   public:
deba@1719:     
deba@1719:     typedef _Graph Graph;
deba@1719: 
deba@1719:     typedef typename Graph::UndirEdge Item;
deba@1719:     typedef typename Graph::UndirEdgeIt ItemIt;
deba@1719: 
deba@1719:     template <typename _Value>
deba@1719:     class Map : public Graph::template UndirEdgeMap<_Value> {
deba@1719:     public:
deba@1719:       typedef typename Graph::template UndirEdgeMap<_Value> Parent; 
deba@1719:       typedef typename Parent::Value Value;
deba@1719: 
deba@1719:       Map(const Graph& _graph) : Parent(_graph) {}
deba@1719:       Map(const Graph& _graph, const Value& _value) 
deba@1719: 	: Parent(_graph, _value) {}
deba@1719:     };
deba@1719: 
deba@1719:   };
deba@1719: 
deba@1719:   template <typename Map, typename Enable = void>
deba@1719:   struct MapTraits {
deba@1719:     typedef False ReferenceMapTag;
deba@1719: 
deba@1719:     typedef typename Map::Key Key;
deba@1719:     typedef typename Map::Value Value;
deba@1719: 
deba@1790:     typedef const Value ConstReturnValue;
deba@1790:     typedef const Value ReturnValue;
deba@1719:   };
deba@1719: 
deba@1719:   template <typename Map>
deba@1719:   struct MapTraits<
deba@1719:     Map, typename enable_if<typename Map::ReferenceMapTag, void>::type > 
deba@1719:   {
deba@1719:     typedef True ReferenceMapTag;
deba@1719:     
deba@1719:     typedef typename Map::Key Key;
deba@1719:     typedef typename Map::Value Value;
deba@1719: 
deba@1719:     typedef typename Map::ConstReference ConstReturnValue;
deba@1719:     typedef typename Map::Reference ReturnValue;
deba@1719: 
deba@1719:     typedef typename Map::ConstReference ConstReference; 
deba@1719:     typedef typename Map::Reference Reference;
deba@1719:  };
deba@1719: 
deba@1719:   // Indicators for the tags
deba@1719: 
deba@1719:   template <typename Graph, typename Enable = void>
deba@1719:   struct NodeNumTagIndicator {
deba@1719:     static const bool value = false;
deba@1719:   };
deba@1719: 
deba@1719:   template <typename Graph>
deba@1719:   struct NodeNumTagIndicator<
deba@1719:     Graph, 
deba@1719:     typename enable_if<typename Graph::NodeNumTag, void>::type
deba@1719:   > {
deba@1719:     static const bool value = true;
deba@1719:   };
deba@1719: 
deba@1719:   template <typename Graph, typename Enable = void>
deba@1719:   struct EdgeNumTagIndicator {
deba@1719:     static const bool value = false;
deba@1719:   };
deba@1719: 
deba@1719:   template <typename Graph>
deba@1719:   struct EdgeNumTagIndicator<
deba@1719:     Graph, 
deba@1719:     typename enable_if<typename Graph::EdgeNumTag, void>::type
deba@1719:   > {
deba@1719:     static const bool value = true;
deba@1719:   };
deba@1719: 
deba@1719:   template <typename Graph, typename Enable = void>
deba@1719:   struct FindEdgeTagIndicator {
deba@1719:     static const bool value = false;
deba@1719:   };
deba@1719: 
deba@1719:   template <typename Graph>
deba@1719:   struct FindEdgeTagIndicator<
deba@1719:     Graph, 
deba@1719:     typename enable_if<typename Graph::FindEdgeTag, void>::type
deba@1719:   > {
deba@1719:     static const bool value = true;
deba@1719:   };
deba@1719: 
deba@1719: 
deba@1719: 
deba@1719: }
deba@1719: 
deba@1719: #endif // LEMON_MAPS_H