1 | /* -*- C++ -*- |
---|
2 | * lemon/map_extender.h - Part of LEMON, a generic C++ optimization library |
---|
3 | * |
---|
4 | * Copyright (C) 2005 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_BITS_MAP_EXTENDER_H |
---|
18 | #define LEMON_BITS_MAP_EXTENDER_H |
---|
19 | |
---|
20 | #include <iterator> |
---|
21 | |
---|
22 | #include <lemon/traits.h> |
---|
23 | |
---|
24 | ///\file |
---|
25 | ///\brief Extenders for iterable maps. |
---|
26 | |
---|
27 | namespace lemon { |
---|
28 | |
---|
29 | template <typename _Map> |
---|
30 | class IterableMapExtender : public _Map { |
---|
31 | public: |
---|
32 | |
---|
33 | typedef _Map Parent; |
---|
34 | typedef IterableMapExtender Map; |
---|
35 | |
---|
36 | |
---|
37 | typedef typename Parent::Graph Graph; |
---|
38 | typedef typename Parent::Key Item; |
---|
39 | |
---|
40 | typedef typename Parent::Key Key; |
---|
41 | typedef typename Parent::Value Value; |
---|
42 | |
---|
43 | class MapIt; |
---|
44 | class ConstMapIt; |
---|
45 | |
---|
46 | friend class MapIt; |
---|
47 | friend class ConstMapIt; |
---|
48 | |
---|
49 | protected: |
---|
50 | |
---|
51 | using Parent::getGraph; |
---|
52 | |
---|
53 | public: |
---|
54 | |
---|
55 | IterableMapExtender(const Graph& graph) : Parent(graph) {} |
---|
56 | |
---|
57 | IterableMapExtender(const Graph& graph, const Value& value) |
---|
58 | : Parent(graph, value) {} |
---|
59 | |
---|
60 | |
---|
61 | class MapIt : public ItemSetTraits<Graph, Item>::ItemIt { |
---|
62 | public: |
---|
63 | |
---|
64 | typedef typename ItemSetTraits<Graph, Item>::ItemIt Parent; |
---|
65 | |
---|
66 | typedef typename Map::Value Value; |
---|
67 | |
---|
68 | MapIt(Map& _map) : Parent(*_map.getGraph()), map(_map) {} |
---|
69 | |
---|
70 | typename MapTraits<Map>::ConstReturnValue operator*() const { |
---|
71 | return map[*this]; |
---|
72 | } |
---|
73 | |
---|
74 | typename MapTraits<Map>::ReturnValue operator*() { |
---|
75 | return map[*this]; |
---|
76 | } |
---|
77 | |
---|
78 | void set(const Value& value) { |
---|
79 | map.set(*this, value); |
---|
80 | } |
---|
81 | |
---|
82 | protected: |
---|
83 | Map& map; |
---|
84 | |
---|
85 | }; |
---|
86 | |
---|
87 | class ConstMapIt : public ItemSetTraits<Graph, Key>::ItemIt { |
---|
88 | public: |
---|
89 | |
---|
90 | typedef typename ItemSetTraits<Graph, Key>::ItemIt Parent; |
---|
91 | |
---|
92 | typedef typename Map::Value Value; |
---|
93 | |
---|
94 | ConstMapIt(const Map& _map) : Parent(*_map.getGraph()), map(_map) {} |
---|
95 | |
---|
96 | typename MapTraits<Map>::ConstReturnValue operator*() const { |
---|
97 | return map[*this]; |
---|
98 | } |
---|
99 | protected: |
---|
100 | const Map& map; |
---|
101 | }; |
---|
102 | |
---|
103 | class ItemIt : public ItemSetTraits<Graph, Key>::ItemIt { |
---|
104 | public: |
---|
105 | |
---|
106 | typedef typename ItemSetTraits<Graph, Key>::ItemIt Parent; |
---|
107 | |
---|
108 | ItemIt(Map& _map) : Parent(*_map.getGraph()) {} |
---|
109 | |
---|
110 | }; |
---|
111 | }; |
---|
112 | |
---|
113 | } |
---|
114 | |
---|
115 | #endif |
---|