COIN-OR::LEMON - Graph Library

source: lemon-0.x/lemon/traits.h @ 1933:a876a3d6a4c7

Last change on this file since 1933:a876a3d6a4c7 was 1915:f1f523d39d32, checked in by Balazs Dezso, 14 years ago

Add new ItemSetTraits? for ANode and BNode

File size: 5.2 KB
Line 
1/* -*- C++ -*-
2 * lemon/traits.h - Part of LEMON, a generic C++ optimization library
3 *
4 * Copyright (C) 2006 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
5 * (Egervary Research Group on Combinatorial Optimization, EGRES).
6 *
7 * Permission to use, modify and distribute this software is granted
8 * provided that this copyright notice appears in all copies. For
9 * precise terms see the accompanying LICENSE file.
10 *
11 * This software is provided "AS IS" with no warranty of any kind,
12 * express or implied, and with no claim as to its suitability for any
13 * purpose.
14 *
15 */
16
17#ifndef LEMON_TRAITS_H
18#define LEMON_TRAITS_H
19
20#include <lemon/utility.h>
21
22///\file
23///\brief Traits for graphs and maps
24///
25
26namespace lemon {
27  template <typename _Graph, typename _Item>
28  class ItemSetTraits {};
29 
30  template <typename _Graph>
31  class ItemSetTraits<_Graph, typename _Graph::Node> {
32  public:
33   
34    typedef _Graph Graph;
35
36    typedef typename Graph::Node Item;
37    typedef typename Graph::NodeIt ItemIt;
38
39    template <typename _Value>
40    class Map : public Graph::template NodeMap<_Value> {
41    public:
42      typedef typename Graph::template NodeMap<_Value> Parent;
43      typedef typename Parent::Value Value;
44
45      Map(const Graph& _graph) : Parent(_graph) {}
46      Map(const Graph& _graph, const Value& _value)
47        : Parent(_graph, _value) {}
48    };
49
50  };
51
52  template <typename _Graph>
53  class ItemSetTraits<_Graph, typename _Graph::Edge> {
54  public:
55   
56    typedef _Graph Graph;
57
58    typedef typename Graph::Edge Item;
59    typedef typename Graph::EdgeIt ItemIt;
60
61    template <typename _Value>
62    class Map : public Graph::template EdgeMap<_Value> {
63    public:
64      typedef typename Graph::template EdgeMap<_Value> Parent;
65      typedef typename Parent::Value Value;
66
67      Map(const Graph& _graph) : Parent(_graph) {}
68      Map(const Graph& _graph, const Value& _value)
69        : Parent(_graph, _value) {}
70    };
71
72  };
73
74  template <typename _Graph>
75  class ItemSetTraits<_Graph, typename _Graph::UEdge> {
76  public:
77   
78    typedef _Graph Graph;
79
80    typedef typename Graph::UEdge Item;
81    typedef typename Graph::UEdgeIt ItemIt;
82
83    template <typename _Value>
84    class Map : public Graph::template UEdgeMap<_Value> {
85    public:
86      typedef typename Graph::template UEdgeMap<_Value> Parent;
87      typedef typename Parent::Value Value;
88
89      Map(const Graph& _graph) : Parent(_graph) {}
90      Map(const Graph& _graph, const Value& _value)
91        : Parent(_graph, _value) {}
92    };
93
94  };
95
96
97  template <typename _Graph>
98  class ItemSetTraits<_Graph, typename _Graph::ANode> {
99  public:
100   
101    typedef _Graph Graph;
102
103    typedef typename Graph::ANode Item;
104    typedef typename Graph::ANodeIt ItemIt;
105
106    template <typename _Value>
107    class Map : public Graph::template ANodeMap<_Value> {
108    public:
109      typedef typename Graph::template ANodeMap<_Value> Parent;
110      typedef typename Parent::Value Value;
111
112      Map(const Graph& _graph) : Parent(_graph) {}
113      Map(const Graph& _graph, const Value& _value)
114        : Parent(_graph, _value) {}
115    };
116
117  };
118
119  template <typename _Graph>
120  class ItemSetTraits<_Graph, typename _Graph::BNode> {
121  public:
122   
123    typedef _Graph Graph;
124
125    typedef typename Graph::BNode Item;
126    typedef typename Graph::BNodeIt ItemIt;
127
128    template <typename _Value>
129    class Map : public Graph::template BNodeMap<_Value> {
130    public:
131      typedef typename Graph::template BNodeMap<_Value> Parent;
132      typedef typename Parent::Value Value;
133
134      Map(const Graph& _graph) : Parent(_graph) {}
135      Map(const Graph& _graph, const Value& _value)
136        : Parent(_graph, _value) {}
137    };
138
139  };
140
141
142  template <typename Map, typename Enable = void>
143  struct MapTraits {
144    typedef False ReferenceMapTag;
145
146    typedef typename Map::Key Key;
147    typedef typename Map::Value Value;
148
149    typedef const Value ConstReturnValue;
150    typedef const Value ReturnValue;
151  };
152
153  template <typename Map>
154  struct MapTraits<
155    Map, typename enable_if<typename Map::ReferenceMapTag, void>::type >
156  {
157    typedef True ReferenceMapTag;
158   
159    typedef typename Map::Key Key;
160    typedef typename Map::Value Value;
161
162    typedef typename Map::ConstReference ConstReturnValue;
163    typedef typename Map::Reference ReturnValue;
164
165    typedef typename Map::ConstReference ConstReference;
166    typedef typename Map::Reference Reference;
167 };
168
169  // Indicators for the tags
170
171  template <typename Graph, typename Enable = void>
172  struct NodeNumTagIndicator {
173    static const bool value = false;
174  };
175
176  template <typename Graph>
177  struct NodeNumTagIndicator<
178    Graph,
179    typename enable_if<typename Graph::NodeNumTag, void>::type
180  > {
181    static const bool value = true;
182  };
183
184  template <typename Graph, typename Enable = void>
185  struct EdgeNumTagIndicator {
186    static const bool value = false;
187  };
188
189  template <typename Graph>
190  struct EdgeNumTagIndicator<
191    Graph,
192    typename enable_if<typename Graph::EdgeNumTag, void>::type
193  > {
194    static const bool value = true;
195  };
196
197  template <typename Graph, typename Enable = void>
198  struct FindEdgeTagIndicator {
199    static const bool value = false;
200  };
201
202  template <typename Graph>
203  struct FindEdgeTagIndicator<
204    Graph,
205    typename enable_if<typename Graph::FindEdgeTag, void>::type
206  > {
207    static const bool value = true;
208  };
209
210
211
212}
213
214#endif // LEMON_MAPS_H
Note: See TracBrowser for help on using the repository browser.