[209] | 1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
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[25] | 2 | * |
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[209] | 3 | * This file is a part of LEMON, a generic C++ optimization library. |
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[25] | 4 | * |
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[440] | 5 | * Copyright (C) 2003-2009 |
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[25] | 6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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| 7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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| 8 | * |
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| 9 | * Permission to use, modify and distribute this software is granted |
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| 10 | * provided that this copyright notice appears in all copies. For |
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| 11 | * precise terms see the accompanying LICENSE file. |
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| 12 | * |
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| 13 | * This software is provided "AS IS" with no warranty of any kind, |
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| 14 | * express or implied, and with no claim as to its suitability for any |
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| 15 | * purpose. |
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| 16 | * |
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| 17 | */ |
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| 18 | |
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| 19 | #ifndef LEMON_MAPS_H |
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| 20 | #define LEMON_MAPS_H |
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| 21 | |
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| 22 | #include <iterator> |
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| 23 | #include <functional> |
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| 24 | #include <vector> |
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| 25 | |
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[220] | 26 | #include <lemon/core.h> |
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[693] | 27 | #include <lemon/smart_graph.h> |
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[25] | 28 | |
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| 29 | ///\file |
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| 30 | ///\ingroup maps |
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| 31 | ///\brief Miscellaneous property maps |
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[80] | 32 | |
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[25] | 33 | #include <map> |
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| 34 | |
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| 35 | namespace lemon { |
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| 36 | |
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| 37 | /// \addtogroup maps |
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| 38 | /// @{ |
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| 39 | |
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| 40 | /// Base class of maps. |
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| 41 | |
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[80] | 42 | /// Base class of maps. It provides the necessary type definitions |
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| 43 | /// required by the map %concepts. |
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| 44 | template<typename K, typename V> |
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[25] | 45 | class MapBase { |
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| 46 | public: |
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[313] | 47 | /// \brief The key type of the map. |
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[25] | 48 | typedef K Key; |
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[80] | 49 | /// \brief The value type of the map. |
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| 50 | /// (The type of objects associated with the keys). |
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| 51 | typedef V Value; |
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[25] | 52 | }; |
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| 53 | |
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[80] | 54 | |
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[25] | 55 | /// Null map. (a.k.a. DoNothingMap) |
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| 56 | |
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[29] | 57 | /// This map can be used if you have to provide a map only for |
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[80] | 58 | /// its type definitions, or if you have to provide a writable map, |
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| 59 | /// but data written to it is not required (i.e. it will be sent to |
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[29] | 60 | /// <tt>/dev/null</tt>). |
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[80] | 61 | /// It conforms the \ref concepts::ReadWriteMap "ReadWriteMap" concept. |
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| 62 | /// |
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| 63 | /// \sa ConstMap |
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| 64 | template<typename K, typename V> |
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| 65 | class NullMap : public MapBase<K, V> { |
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[25] | 66 | public: |
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[559] | 67 | ///\e |
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| 68 | typedef K Key; |
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| 69 | ///\e |
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| 70 | typedef V Value; |
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[80] | 71 | |
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[25] | 72 | /// Gives back a default constructed element. |
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[80] | 73 | Value operator[](const Key&) const { return Value(); } |
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[25] | 74 | /// Absorbs the value. |
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[80] | 75 | void set(const Key&, const Value&) {} |
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[25] | 76 | }; |
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| 77 | |
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[301] | 78 | /// Returns a \c NullMap class |
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| 79 | |
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| 80 | /// This function just returns a \c NullMap class. |
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[80] | 81 | /// \relates NullMap |
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| 82 | template <typename K, typename V> |
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[25] | 83 | NullMap<K, V> nullMap() { |
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| 84 | return NullMap<K, V>(); |
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| 85 | } |
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| 86 | |
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| 87 | |
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| 88 | /// Constant map. |
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| 89 | |
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[82] | 90 | /// This \ref concepts::ReadMap "readable map" assigns a specified |
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| 91 | /// value to each key. |
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[80] | 92 | /// |
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[301] | 93 | /// In other aspects it is equivalent to \c NullMap. |
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[80] | 94 | /// So it conforms the \ref concepts::ReadWriteMap "ReadWriteMap" |
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| 95 | /// concept, but it absorbs the data written to it. |
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| 96 | /// |
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| 97 | /// The simplest way of using this map is through the constMap() |
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| 98 | /// function. |
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| 99 | /// |
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| 100 | /// \sa NullMap |
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| 101 | /// \sa IdentityMap |
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| 102 | template<typename K, typename V> |
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| 103 | class ConstMap : public MapBase<K, V> { |
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[25] | 104 | private: |
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[80] | 105 | V _value; |
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[25] | 106 | public: |
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[559] | 107 | ///\e |
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| 108 | typedef K Key; |
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| 109 | ///\e |
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| 110 | typedef V Value; |
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[25] | 111 | |
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| 112 | /// Default constructor |
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| 113 | |
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[29] | 114 | /// Default constructor. |
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[80] | 115 | /// The value of the map will be default constructed. |
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[25] | 116 | ConstMap() {} |
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[80] | 117 | |
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[29] | 118 | /// Constructor with specified initial value |
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[25] | 119 | |
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[29] | 120 | /// Constructor with specified initial value. |
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[123] | 121 | /// \param v The initial value of the map. |
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[80] | 122 | ConstMap(const Value &v) : _value(v) {} |
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[25] | 123 | |
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[80] | 124 | /// Gives back the specified value. |
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| 125 | Value operator[](const Key&) const { return _value; } |
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[25] | 126 | |
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[80] | 127 | /// Absorbs the value. |
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| 128 | void set(const Key&, const Value&) {} |
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| 129 | |
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| 130 | /// Sets the value that is assigned to each key. |
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| 131 | void setAll(const Value &v) { |
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| 132 | _value = v; |
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| 133 | } |
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| 134 | |
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| 135 | template<typename V1> |
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| 136 | ConstMap(const ConstMap<K, V1> &, const Value &v) : _value(v) {} |
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[25] | 137 | }; |
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| 138 | |
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[301] | 139 | /// Returns a \c ConstMap class |
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| 140 | |
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| 141 | /// This function just returns a \c ConstMap class. |
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[80] | 142 | /// \relates ConstMap |
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| 143 | template<typename K, typename V> |
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[25] | 144 | inline ConstMap<K, V> constMap(const V &v) { |
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| 145 | return ConstMap<K, V>(v); |
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| 146 | } |
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| 147 | |
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[123] | 148 | template<typename K, typename V> |
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| 149 | inline ConstMap<K, V> constMap() { |
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| 150 | return ConstMap<K, V>(); |
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| 151 | } |
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| 152 | |
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[25] | 153 | |
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| 154 | template<typename T, T v> |
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[80] | 155 | struct Const {}; |
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[25] | 156 | |
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| 157 | /// Constant map with inlined constant value. |
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| 158 | |
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[82] | 159 | /// This \ref concepts::ReadMap "readable map" assigns a specified |
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| 160 | /// value to each key. |
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[80] | 161 | /// |
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[301] | 162 | /// In other aspects it is equivalent to \c NullMap. |
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[80] | 163 | /// So it conforms the \ref concepts::ReadWriteMap "ReadWriteMap" |
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| 164 | /// concept, but it absorbs the data written to it. |
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| 165 | /// |
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| 166 | /// The simplest way of using this map is through the constMap() |
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| 167 | /// function. |
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| 168 | /// |
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| 169 | /// \sa NullMap |
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| 170 | /// \sa IdentityMap |
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[25] | 171 | template<typename K, typename V, V v> |
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| 172 | class ConstMap<K, Const<V, v> > : public MapBase<K, V> { |
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| 173 | public: |
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[559] | 174 | ///\e |
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| 175 | typedef K Key; |
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| 176 | ///\e |
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| 177 | typedef V Value; |
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[25] | 178 | |
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[80] | 179 | /// Constructor. |
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| 180 | ConstMap() {} |
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| 181 | |
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| 182 | /// Gives back the specified value. |
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| 183 | Value operator[](const Key&) const { return v; } |
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| 184 | |
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| 185 | /// Absorbs the value. |
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| 186 | void set(const Key&, const Value&) {} |
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[25] | 187 | }; |
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| 188 | |
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[301] | 189 | /// Returns a \c ConstMap class with inlined constant value |
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| 190 | |
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| 191 | /// This function just returns a \c ConstMap class with inlined |
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[80] | 192 | /// constant value. |
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| 193 | /// \relates ConstMap |
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| 194 | template<typename K, typename V, V v> |
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[25] | 195 | inline ConstMap<K, Const<V, v> > constMap() { |
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| 196 | return ConstMap<K, Const<V, v> >(); |
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| 197 | } |
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| 198 | |
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| 199 | |
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[82] | 200 | /// Identity map. |
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| 201 | |
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| 202 | /// This \ref concepts::ReadMap "read-only map" gives back the given |
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| 203 | /// key as value without any modification. |
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[80] | 204 | /// |
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| 205 | /// \sa ConstMap |
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| 206 | template <typename T> |
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| 207 | class IdentityMap : public MapBase<T, T> { |
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| 208 | public: |
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[559] | 209 | ///\e |
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| 210 | typedef T Key; |
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| 211 | ///\e |
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| 212 | typedef T Value; |
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[80] | 213 | |
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| 214 | /// Gives back the given value without any modification. |
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[82] | 215 | Value operator[](const Key &k) const { |
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| 216 | return k; |
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[80] | 217 | } |
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| 218 | }; |
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| 219 | |
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[301] | 220 | /// Returns an \c IdentityMap class |
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| 221 | |
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| 222 | /// This function just returns an \c IdentityMap class. |
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[80] | 223 | /// \relates IdentityMap |
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| 224 | template<typename T> |
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| 225 | inline IdentityMap<T> identityMap() { |
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| 226 | return IdentityMap<T>(); |
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| 227 | } |
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| 228 | |
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| 229 | |
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| 230 | /// \brief Map for storing values for integer keys from the range |
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| 231 | /// <tt>[0..size-1]</tt>. |
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| 232 | /// |
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| 233 | /// This map is essentially a wrapper for \c std::vector. It assigns |
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| 234 | /// values to integer keys from the range <tt>[0..size-1]</tt>. |
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| 235 | /// It can be used with some data structures, for example |
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[301] | 236 | /// \c UnionFind, \c BinHeap, when the used items are small |
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[80] | 237 | /// integers. This map conforms the \ref concepts::ReferenceMap |
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| 238 | /// "ReferenceMap" concept. |
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| 239 | /// |
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| 240 | /// The simplest way of using this map is through the rangeMap() |
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| 241 | /// function. |
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| 242 | template <typename V> |
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| 243 | class RangeMap : public MapBase<int, V> { |
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| 244 | template <typename V1> |
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| 245 | friend class RangeMap; |
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| 246 | private: |
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| 247 | |
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| 248 | typedef std::vector<V> Vector; |
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| 249 | Vector _vector; |
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| 250 | |
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[25] | 251 | public: |
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| 252 | |
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[80] | 253 | /// Key type |
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[559] | 254 | typedef int Key; |
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[80] | 255 | /// Value type |
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[559] | 256 | typedef V Value; |
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[80] | 257 | /// Reference type |
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| 258 | typedef typename Vector::reference Reference; |
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| 259 | /// Const reference type |
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| 260 | typedef typename Vector::const_reference ConstReference; |
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| 261 | |
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| 262 | typedef True ReferenceMapTag; |
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| 263 | |
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| 264 | public: |
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| 265 | |
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| 266 | /// Constructor with specified default value. |
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| 267 | RangeMap(int size = 0, const Value &value = Value()) |
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| 268 | : _vector(size, value) {} |
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| 269 | |
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| 270 | /// Constructs the map from an appropriate \c std::vector. |
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| 271 | template <typename V1> |
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| 272 | RangeMap(const std::vector<V1>& vector) |
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| 273 | : _vector(vector.begin(), vector.end()) {} |
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| 274 | |
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[301] | 275 | /// Constructs the map from another \c RangeMap. |
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[80] | 276 | template <typename V1> |
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| 277 | RangeMap(const RangeMap<V1> &c) |
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| 278 | : _vector(c._vector.begin(), c._vector.end()) {} |
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| 279 | |
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| 280 | /// Returns the size of the map. |
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| 281 | int size() { |
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| 282 | return _vector.size(); |
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| 283 | } |
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| 284 | |
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| 285 | /// Resizes the map. |
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| 286 | |
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| 287 | /// Resizes the underlying \c std::vector container, so changes the |
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| 288 | /// keyset of the map. |
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| 289 | /// \param size The new size of the map. The new keyset will be the |
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| 290 | /// range <tt>[0..size-1]</tt>. |
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| 291 | /// \param value The default value to assign to the new keys. |
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| 292 | void resize(int size, const Value &value = Value()) { |
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| 293 | _vector.resize(size, value); |
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| 294 | } |
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| 295 | |
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| 296 | private: |
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| 297 | |
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| 298 | RangeMap& operator=(const RangeMap&); |
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| 299 | |
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| 300 | public: |
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| 301 | |
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| 302 | ///\e |
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| 303 | Reference operator[](const Key &k) { |
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| 304 | return _vector[k]; |
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| 305 | } |
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| 306 | |
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| 307 | ///\e |
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| 308 | ConstReference operator[](const Key &k) const { |
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| 309 | return _vector[k]; |
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| 310 | } |
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| 311 | |
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| 312 | ///\e |
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| 313 | void set(const Key &k, const Value &v) { |
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| 314 | _vector[k] = v; |
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| 315 | } |
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| 316 | }; |
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| 317 | |
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[301] | 318 | /// Returns a \c RangeMap class |
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| 319 | |
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| 320 | /// This function just returns a \c RangeMap class. |
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[80] | 321 | /// \relates RangeMap |
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| 322 | template<typename V> |
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| 323 | inline RangeMap<V> rangeMap(int size = 0, const V &value = V()) { |
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| 324 | return RangeMap<V>(size, value); |
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| 325 | } |
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| 326 | |
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[301] | 327 | /// \brief Returns a \c RangeMap class created from an appropriate |
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[80] | 328 | /// \c std::vector |
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| 329 | |
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[301] | 330 | /// This function just returns a \c RangeMap class created from an |
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[80] | 331 | /// appropriate \c std::vector. |
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| 332 | /// \relates RangeMap |
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| 333 | template<typename V> |
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| 334 | inline RangeMap<V> rangeMap(const std::vector<V> &vector) { |
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| 335 | return RangeMap<V>(vector); |
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| 336 | } |
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| 337 | |
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| 338 | |
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| 339 | /// Map type based on \c std::map |
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| 340 | |
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| 341 | /// This map is essentially a wrapper for \c std::map with addition |
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| 342 | /// that you can specify a default value for the keys that are not |
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| 343 | /// stored actually. This value can be different from the default |
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| 344 | /// contructed value (i.e. \c %Value()). |
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| 345 | /// This type conforms the \ref concepts::ReferenceMap "ReferenceMap" |
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| 346 | /// concept. |
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| 347 | /// |
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| 348 | /// This map is useful if a default value should be assigned to most of |
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| 349 | /// the keys and different values should be assigned only to a few |
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| 350 | /// keys (i.e. the map is "sparse"). |
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| 351 | /// The name of this type also refers to this important usage. |
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| 352 | /// |
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| 353 | /// Apart form that this map can be used in many other cases since it |
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| 354 | /// is based on \c std::map, which is a general associative container. |
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| 355 | /// However keep in mind that it is usually not as efficient as other |
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| 356 | /// maps. |
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| 357 | /// |
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| 358 | /// The simplest way of using this map is through the sparseMap() |
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| 359 | /// function. |
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[559] | 360 | template <typename K, typename V, typename Comp = std::less<K> > |
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[80] | 361 | class SparseMap : public MapBase<K, V> { |
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| 362 | template <typename K1, typename V1, typename C1> |
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| 363 | friend class SparseMap; |
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| 364 | public: |
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| 365 | |
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| 366 | /// Key type |
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[559] | 367 | typedef K Key; |
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[80] | 368 | /// Value type |
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[559] | 369 | typedef V Value; |
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[80] | 370 | /// Reference type |
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| 371 | typedef Value& Reference; |
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| 372 | /// Const reference type |
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| 373 | typedef const Value& ConstReference; |
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[25] | 374 | |
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[45] | 375 | typedef True ReferenceMapTag; |
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| 376 | |
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[25] | 377 | private: |
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[80] | 378 | |
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[559] | 379 | typedef std::map<K, V, Comp> Map; |
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[80] | 380 | Map _map; |
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[25] | 381 | Value _value; |
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| 382 | |
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| 383 | public: |
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| 384 | |
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[80] | 385 | /// \brief Constructor with specified default value. |
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| 386 | SparseMap(const Value &value = Value()) : _value(value) {} |
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| 387 | /// \brief Constructs the map from an appropriate \c std::map, and |
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[47] | 388 | /// explicitly specifies a default value. |
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[80] | 389 | template <typename V1, typename Comp1> |
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| 390 | SparseMap(const std::map<Key, V1, Comp1> &map, |
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| 391 | const Value &value = Value()) |
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[25] | 392 | : _map(map.begin(), map.end()), _value(value) {} |
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[80] | 393 | |
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[301] | 394 | /// \brief Constructs the map from another \c SparseMap. |
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[80] | 395 | template<typename V1, typename Comp1> |
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| 396 | SparseMap(const SparseMap<Key, V1, Comp1> &c) |
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[25] | 397 | : _map(c._map.begin(), c._map.end()), _value(c._value) {} |
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| 398 | |
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| 399 | private: |
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| 400 | |
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[80] | 401 | SparseMap& operator=(const SparseMap&); |
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[25] | 402 | |
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| 403 | public: |
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| 404 | |
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| 405 | ///\e |
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| 406 | Reference operator[](const Key &k) { |
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| 407 | typename Map::iterator it = _map.lower_bound(k); |
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| 408 | if (it != _map.end() && !_map.key_comp()(k, it->first)) |
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[209] | 409 | return it->second; |
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[25] | 410 | else |
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[209] | 411 | return _map.insert(it, std::make_pair(k, _value))->second; |
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[25] | 412 | } |
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| 413 | |
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[80] | 414 | ///\e |
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[25] | 415 | ConstReference operator[](const Key &k) const { |
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| 416 | typename Map::const_iterator it = _map.find(k); |
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| 417 | if (it != _map.end()) |
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[209] | 418 | return it->second; |
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[25] | 419 | else |
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[209] | 420 | return _value; |
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[25] | 421 | } |
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| 422 | |
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[80] | 423 | ///\e |
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| 424 | void set(const Key &k, const Value &v) { |
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[25] | 425 | typename Map::iterator it = _map.lower_bound(k); |
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| 426 | if (it != _map.end() && !_map.key_comp()(k, it->first)) |
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[209] | 427 | it->second = v; |
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[25] | 428 | else |
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[209] | 429 | _map.insert(it, std::make_pair(k, v)); |
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[25] | 430 | } |
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| 431 | |
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[80] | 432 | ///\e |
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| 433 | void setAll(const Value &v) { |
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| 434 | _value = v; |
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[25] | 435 | _map.clear(); |
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[80] | 436 | } |
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| 437 | }; |
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[25] | 438 | |
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[301] | 439 | /// Returns a \c SparseMap class |
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| 440 | |
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| 441 | /// This function just returns a \c SparseMap class with specified |
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[80] | 442 | /// default value. |
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| 443 | /// \relates SparseMap |
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| 444 | template<typename K, typename V, typename Compare> |
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| 445 | inline SparseMap<K, V, Compare> sparseMap(const V& value = V()) { |
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| 446 | return SparseMap<K, V, Compare>(value); |
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[54] | 447 | } |
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[45] | 448 | |
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[80] | 449 | template<typename K, typename V> |
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| 450 | inline SparseMap<K, V, std::less<K> > sparseMap(const V& value = V()) { |
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| 451 | return SparseMap<K, V, std::less<K> >(value); |
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[45] | 452 | } |
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[25] | 453 | |
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[301] | 454 | /// \brief Returns a \c SparseMap class created from an appropriate |
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[80] | 455 | /// \c std::map |
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[25] | 456 | |
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[301] | 457 | /// This function just returns a \c SparseMap class created from an |
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[80] | 458 | /// appropriate \c std::map. |
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| 459 | /// \relates SparseMap |
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| 460 | template<typename K, typename V, typename Compare> |
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| 461 | inline SparseMap<K, V, Compare> |
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| 462 | sparseMap(const std::map<K, V, Compare> &map, const V& value = V()) |
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| 463 | { |
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| 464 | return SparseMap<K, V, Compare>(map, value); |
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[45] | 465 | } |
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[25] | 466 | |
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| 467 | /// @} |
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| 468 | |
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| 469 | /// \addtogroup map_adaptors |
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| 470 | /// @{ |
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| 471 | |
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[80] | 472 | /// Composition of two maps |
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| 473 | |
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[82] | 474 | /// This \ref concepts::ReadMap "read-only map" returns the |
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[80] | 475 | /// composition of two given maps. That is to say, if \c m1 is of |
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| 476 | /// type \c M1 and \c m2 is of \c M2, then for |
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| 477 | /// \code |
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| 478 | /// ComposeMap<M1, M2> cm(m1,m2); |
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| 479 | /// \endcode |
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| 480 | /// <tt>cm[x]</tt> will be equal to <tt>m1[m2[x]]</tt>. |
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[25] | 481 | /// |
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[80] | 482 | /// The \c Key type of the map is inherited from \c M2 and the |
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| 483 | /// \c Value type is from \c M1. |
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| 484 | /// \c M2::Value must be convertible to \c M1::Key. |
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| 485 | /// |
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| 486 | /// The simplest way of using this map is through the composeMap() |
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| 487 | /// function. |
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| 488 | /// |
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| 489 | /// \sa CombineMap |
---|
| 490 | template <typename M1, typename M2> |
---|
| 491 | class ComposeMap : public MapBase<typename M2::Key, typename M1::Value> { |
---|
| 492 | const M1 &_m1; |
---|
| 493 | const M2 &_m2; |
---|
[25] | 494 | public: |
---|
[559] | 495 | ///\e |
---|
| 496 | typedef typename M2::Key Key; |
---|
| 497 | ///\e |
---|
| 498 | typedef typename M1::Value Value; |
---|
[25] | 499 | |
---|
[80] | 500 | /// Constructor |
---|
| 501 | ComposeMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
| 502 | |
---|
[559] | 503 | ///\e |
---|
[80] | 504 | typename MapTraits<M1>::ConstReturnValue |
---|
| 505 | operator[](const Key &k) const { return _m1[_m2[k]]; } |
---|
[25] | 506 | }; |
---|
| 507 | |
---|
[301] | 508 | /// Returns a \c ComposeMap class |
---|
| 509 | |
---|
| 510 | /// This function just returns a \c ComposeMap class. |
---|
[80] | 511 | /// |
---|
| 512 | /// If \c m1 and \c m2 are maps and the \c Value type of \c m2 is |
---|
| 513 | /// convertible to the \c Key of \c m1, then <tt>composeMap(m1,m2)[x]</tt> |
---|
| 514 | /// will be equal to <tt>m1[m2[x]]</tt>. |
---|
| 515 | /// |
---|
| 516 | /// \relates ComposeMap |
---|
| 517 | template <typename M1, typename M2> |
---|
| 518 | inline ComposeMap<M1, M2> composeMap(const M1 &m1, const M2 &m2) { |
---|
| 519 | return ComposeMap<M1, M2>(m1, m2); |
---|
[25] | 520 | } |
---|
| 521 | |
---|
[80] | 522 | |
---|
| 523 | /// Combination of two maps using an STL (binary) functor. |
---|
| 524 | |
---|
[82] | 525 | /// This \ref concepts::ReadMap "read-only map" takes two maps and a |
---|
[80] | 526 | /// binary functor and returns the combination of the two given maps |
---|
| 527 | /// using the functor. |
---|
| 528 | /// That is to say, if \c m1 is of type \c M1 and \c m2 is of \c M2 |
---|
| 529 | /// and \c f is of \c F, then for |
---|
| 530 | /// \code |
---|
| 531 | /// CombineMap<M1,M2,F,V> cm(m1,m2,f); |
---|
| 532 | /// \endcode |
---|
| 533 | /// <tt>cm[x]</tt> will be equal to <tt>f(m1[x],m2[x])</tt>. |
---|
[26] | 534 | /// |
---|
[80] | 535 | /// The \c Key type of the map is inherited from \c M1 (\c M1::Key |
---|
| 536 | /// must be convertible to \c M2::Key) and the \c Value type is \c V. |
---|
| 537 | /// \c M2::Value and \c M1::Value must be convertible to the |
---|
| 538 | /// corresponding input parameter of \c F and the return type of \c F |
---|
| 539 | /// must be convertible to \c V. |
---|
| 540 | /// |
---|
| 541 | /// The simplest way of using this map is through the combineMap() |
---|
| 542 | /// function. |
---|
| 543 | /// |
---|
| 544 | /// \sa ComposeMap |
---|
| 545 | template<typename M1, typename M2, typename F, |
---|
[209] | 546 | typename V = typename F::result_type> |
---|
[80] | 547 | class CombineMap : public MapBase<typename M1::Key, V> { |
---|
| 548 | const M1 &_m1; |
---|
| 549 | const M2 &_m2; |
---|
| 550 | F _f; |
---|
[25] | 551 | public: |
---|
[559] | 552 | ///\e |
---|
| 553 | typedef typename M1::Key Key; |
---|
| 554 | ///\e |
---|
| 555 | typedef V Value; |
---|
[25] | 556 | |
---|
[80] | 557 | /// Constructor |
---|
| 558 | CombineMap(const M1 &m1, const M2 &m2, const F &f = F()) |
---|
| 559 | : _m1(m1), _m2(m2), _f(f) {} |
---|
[559] | 560 | ///\e |
---|
[80] | 561 | Value operator[](const Key &k) const { return _f(_m1[k],_m2[k]); } |
---|
| 562 | }; |
---|
[25] | 563 | |
---|
[301] | 564 | /// Returns a \c CombineMap class |
---|
| 565 | |
---|
| 566 | /// This function just returns a \c CombineMap class. |
---|
[80] | 567 | /// |
---|
| 568 | /// For example, if \c m1 and \c m2 are both maps with \c double |
---|
| 569 | /// values, then |
---|
| 570 | /// \code |
---|
| 571 | /// combineMap(m1,m2,std::plus<double>()) |
---|
| 572 | /// \endcode |
---|
| 573 | /// is equivalent to |
---|
| 574 | /// \code |
---|
| 575 | /// addMap(m1,m2) |
---|
| 576 | /// \endcode |
---|
| 577 | /// |
---|
| 578 | /// This function is specialized for adaptable binary function |
---|
| 579 | /// classes and C++ functions. |
---|
| 580 | /// |
---|
| 581 | /// \relates CombineMap |
---|
| 582 | template<typename M1, typename M2, typename F, typename V> |
---|
| 583 | inline CombineMap<M1, M2, F, V> |
---|
| 584 | combineMap(const M1 &m1, const M2 &m2, const F &f) { |
---|
| 585 | return CombineMap<M1, M2, F, V>(m1,m2,f); |
---|
[25] | 586 | } |
---|
| 587 | |
---|
[80] | 588 | template<typename M1, typename M2, typename F> |
---|
| 589 | inline CombineMap<M1, M2, F, typename F::result_type> |
---|
| 590 | combineMap(const M1 &m1, const M2 &m2, const F &f) { |
---|
| 591 | return combineMap<M1, M2, F, typename F::result_type>(m1,m2,f); |
---|
| 592 | } |
---|
[25] | 593 | |
---|
[80] | 594 | template<typename M1, typename M2, typename K1, typename K2, typename V> |
---|
| 595 | inline CombineMap<M1, M2, V (*)(K1, K2), V> |
---|
| 596 | combineMap(const M1 &m1, const M2 &m2, V (*f)(K1, K2)) { |
---|
| 597 | return combineMap<M1, M2, V (*)(K1, K2), V>(m1,m2,f); |
---|
| 598 | } |
---|
| 599 | |
---|
| 600 | |
---|
| 601 | /// Converts an STL style (unary) functor to a map |
---|
| 602 | |
---|
[82] | 603 | /// This \ref concepts::ReadMap "read-only map" returns the value |
---|
[80] | 604 | /// of a given functor. Actually, it just wraps the functor and |
---|
| 605 | /// provides the \c Key and \c Value typedefs. |
---|
[26] | 606 | /// |
---|
[80] | 607 | /// Template parameters \c K and \c V will become its \c Key and |
---|
| 608 | /// \c Value. In most cases they have to be given explicitly because |
---|
| 609 | /// a functor typically does not provide \c argument_type and |
---|
| 610 | /// \c result_type typedefs. |
---|
| 611 | /// Parameter \c F is the type of the used functor. |
---|
[29] | 612 | /// |
---|
[80] | 613 | /// The simplest way of using this map is through the functorToMap() |
---|
| 614 | /// function. |
---|
| 615 | /// |
---|
| 616 | /// \sa MapToFunctor |
---|
| 617 | template<typename F, |
---|
[209] | 618 | typename K = typename F::argument_type, |
---|
| 619 | typename V = typename F::result_type> |
---|
[80] | 620 | class FunctorToMap : public MapBase<K, V> { |
---|
[123] | 621 | F _f; |
---|
[80] | 622 | public: |
---|
[559] | 623 | ///\e |
---|
| 624 | typedef K Key; |
---|
| 625 | ///\e |
---|
| 626 | typedef V Value; |
---|
[25] | 627 | |
---|
[80] | 628 | /// Constructor |
---|
| 629 | FunctorToMap(const F &f = F()) : _f(f) {} |
---|
[559] | 630 | ///\e |
---|
[80] | 631 | Value operator[](const Key &k) const { return _f(k); } |
---|
| 632 | }; |
---|
| 633 | |
---|
[301] | 634 | /// Returns a \c FunctorToMap class |
---|
| 635 | |
---|
| 636 | /// This function just returns a \c FunctorToMap class. |
---|
[80] | 637 | /// |
---|
| 638 | /// This function is specialized for adaptable binary function |
---|
| 639 | /// classes and C++ functions. |
---|
| 640 | /// |
---|
| 641 | /// \relates FunctorToMap |
---|
| 642 | template<typename K, typename V, typename F> |
---|
| 643 | inline FunctorToMap<F, K, V> functorToMap(const F &f) { |
---|
| 644 | return FunctorToMap<F, K, V>(f); |
---|
| 645 | } |
---|
| 646 | |
---|
| 647 | template <typename F> |
---|
| 648 | inline FunctorToMap<F, typename F::argument_type, typename F::result_type> |
---|
| 649 | functorToMap(const F &f) |
---|
| 650 | { |
---|
| 651 | return FunctorToMap<F, typename F::argument_type, |
---|
| 652 | typename F::result_type>(f); |
---|
| 653 | } |
---|
| 654 | |
---|
| 655 | template <typename K, typename V> |
---|
| 656 | inline FunctorToMap<V (*)(K), K, V> functorToMap(V (*f)(K)) { |
---|
| 657 | return FunctorToMap<V (*)(K), K, V>(f); |
---|
| 658 | } |
---|
| 659 | |
---|
| 660 | |
---|
| 661 | /// Converts a map to an STL style (unary) functor |
---|
| 662 | |
---|
| 663 | /// This class converts a map to an STL style (unary) functor. |
---|
| 664 | /// That is it provides an <tt>operator()</tt> to read its values. |
---|
| 665 | /// |
---|
| 666 | /// For the sake of convenience it also works as a usual |
---|
| 667 | /// \ref concepts::ReadMap "readable map", i.e. <tt>operator[]</tt> |
---|
| 668 | /// and the \c Key and \c Value typedefs also exist. |
---|
| 669 | /// |
---|
| 670 | /// The simplest way of using this map is through the mapToFunctor() |
---|
| 671 | /// function. |
---|
| 672 | /// |
---|
| 673 | ///\sa FunctorToMap |
---|
| 674 | template <typename M> |
---|
| 675 | class MapToFunctor : public MapBase<typename M::Key, typename M::Value> { |
---|
| 676 | const M &_m; |
---|
[25] | 677 | public: |
---|
[559] | 678 | ///\e |
---|
| 679 | typedef typename M::Key Key; |
---|
| 680 | ///\e |
---|
| 681 | typedef typename M::Value Value; |
---|
| 682 | |
---|
| 683 | typedef typename M::Key argument_type; |
---|
| 684 | typedef typename M::Value result_type; |
---|
[80] | 685 | |
---|
| 686 | /// Constructor |
---|
| 687 | MapToFunctor(const M &m) : _m(m) {} |
---|
[559] | 688 | ///\e |
---|
[80] | 689 | Value operator()(const Key &k) const { return _m[k]; } |
---|
[559] | 690 | ///\e |
---|
[80] | 691 | Value operator[](const Key &k) const { return _m[k]; } |
---|
[25] | 692 | }; |
---|
[45] | 693 | |
---|
[301] | 694 | /// Returns a \c MapToFunctor class |
---|
| 695 | |
---|
| 696 | /// This function just returns a \c MapToFunctor class. |
---|
[80] | 697 | /// \relates MapToFunctor |
---|
[45] | 698 | template<typename M> |
---|
[80] | 699 | inline MapToFunctor<M> mapToFunctor(const M &m) { |
---|
| 700 | return MapToFunctor<M>(m); |
---|
[45] | 701 | } |
---|
[25] | 702 | |
---|
| 703 | |
---|
[80] | 704 | /// \brief Map adaptor to convert the \c Value type of a map to |
---|
| 705 | /// another type using the default conversion. |
---|
| 706 | |
---|
| 707 | /// Map adaptor to convert the \c Value type of a \ref concepts::ReadMap |
---|
| 708 | /// "readable map" to another type using the default conversion. |
---|
| 709 | /// The \c Key type of it is inherited from \c M and the \c Value |
---|
| 710 | /// type is \c V. |
---|
| 711 | /// This type conforms the \ref concepts::ReadMap "ReadMap" concept. |
---|
[26] | 712 | /// |
---|
[80] | 713 | /// The simplest way of using this map is through the convertMap() |
---|
| 714 | /// function. |
---|
| 715 | template <typename M, typename V> |
---|
| 716 | class ConvertMap : public MapBase<typename M::Key, V> { |
---|
| 717 | const M &_m; |
---|
| 718 | public: |
---|
[559] | 719 | ///\e |
---|
| 720 | typedef typename M::Key Key; |
---|
| 721 | ///\e |
---|
| 722 | typedef V Value; |
---|
[80] | 723 | |
---|
| 724 | /// Constructor |
---|
| 725 | |
---|
| 726 | /// Constructor. |
---|
| 727 | /// \param m The underlying map. |
---|
| 728 | ConvertMap(const M &m) : _m(m) {} |
---|
| 729 | |
---|
[559] | 730 | ///\e |
---|
[80] | 731 | Value operator[](const Key &k) const { return _m[k]; } |
---|
| 732 | }; |
---|
| 733 | |
---|
[301] | 734 | /// Returns a \c ConvertMap class |
---|
| 735 | |
---|
| 736 | /// This function just returns a \c ConvertMap class. |
---|
[80] | 737 | /// \relates ConvertMap |
---|
| 738 | template<typename V, typename M> |
---|
| 739 | inline ConvertMap<M, V> convertMap(const M &map) { |
---|
| 740 | return ConvertMap<M, V>(map); |
---|
| 741 | } |
---|
| 742 | |
---|
| 743 | |
---|
| 744 | /// Applies all map setting operations to two maps |
---|
| 745 | |
---|
| 746 | /// This map has two \ref concepts::WriteMap "writable map" parameters |
---|
| 747 | /// and each write request will be passed to both of them. |
---|
| 748 | /// If \c M1 is also \ref concepts::ReadMap "readable", then the read |
---|
| 749 | /// operations will return the corresponding values of \c M1. |
---|
[29] | 750 | /// |
---|
[80] | 751 | /// The \c Key and \c Value types are inherited from \c M1. |
---|
| 752 | /// The \c Key and \c Value of \c M2 must be convertible from those |
---|
| 753 | /// of \c M1. |
---|
| 754 | /// |
---|
| 755 | /// The simplest way of using this map is through the forkMap() |
---|
| 756 | /// function. |
---|
| 757 | template<typename M1, typename M2> |
---|
| 758 | class ForkMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
| 759 | M1 &_m1; |
---|
| 760 | M2 &_m2; |
---|
| 761 | public: |
---|
[559] | 762 | ///\e |
---|
| 763 | typedef typename M1::Key Key; |
---|
| 764 | ///\e |
---|
| 765 | typedef typename M1::Value Value; |
---|
[25] | 766 | |
---|
[80] | 767 | /// Constructor |
---|
| 768 | ForkMap(M1 &m1, M2 &m2) : _m1(m1), _m2(m2) {} |
---|
| 769 | /// Returns the value associated with the given key in the first map. |
---|
| 770 | Value operator[](const Key &k) const { return _m1[k]; } |
---|
| 771 | /// Sets the value associated with the given key in both maps. |
---|
| 772 | void set(const Key &k, const Value &v) { _m1.set(k,v); _m2.set(k,v); } |
---|
| 773 | }; |
---|
| 774 | |
---|
[301] | 775 | /// Returns a \c ForkMap class |
---|
| 776 | |
---|
| 777 | /// This function just returns a \c ForkMap class. |
---|
[80] | 778 | /// \relates ForkMap |
---|
| 779 | template <typename M1, typename M2> |
---|
| 780 | inline ForkMap<M1,M2> forkMap(M1 &m1, M2 &m2) { |
---|
| 781 | return ForkMap<M1,M2>(m1,m2); |
---|
| 782 | } |
---|
| 783 | |
---|
| 784 | |
---|
| 785 | /// Sum of two maps |
---|
| 786 | |
---|
[82] | 787 | /// This \ref concepts::ReadMap "read-only map" returns the sum |
---|
[80] | 788 | /// of the values of the two given maps. |
---|
| 789 | /// Its \c Key and \c Value types are inherited from \c M1. |
---|
| 790 | /// The \c Key and \c Value of \c M2 must be convertible to those of |
---|
| 791 | /// \c M1. |
---|
| 792 | /// |
---|
| 793 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
| 794 | /// \code |
---|
| 795 | /// AddMap<M1,M2> am(m1,m2); |
---|
| 796 | /// \endcode |
---|
| 797 | /// <tt>am[x]</tt> will be equal to <tt>m1[x]+m2[x]</tt>. |
---|
| 798 | /// |
---|
| 799 | /// The simplest way of using this map is through the addMap() |
---|
| 800 | /// function. |
---|
| 801 | /// |
---|
| 802 | /// \sa SubMap, MulMap, DivMap |
---|
| 803 | /// \sa ShiftMap, ShiftWriteMap |
---|
| 804 | template<typename M1, typename M2> |
---|
[25] | 805 | class AddMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
[80] | 806 | const M1 &_m1; |
---|
| 807 | const M2 &_m2; |
---|
[25] | 808 | public: |
---|
[559] | 809 | ///\e |
---|
| 810 | typedef typename M1::Key Key; |
---|
| 811 | ///\e |
---|
| 812 | typedef typename M1::Value Value; |
---|
[25] | 813 | |
---|
[80] | 814 | /// Constructor |
---|
| 815 | AddMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
[559] | 816 | ///\e |
---|
[80] | 817 | Value operator[](const Key &k) const { return _m1[k]+_m2[k]; } |
---|
[25] | 818 | }; |
---|
| 819 | |
---|
[301] | 820 | /// Returns an \c AddMap class |
---|
| 821 | |
---|
| 822 | /// This function just returns an \c AddMap class. |
---|
[25] | 823 | /// |
---|
[80] | 824 | /// For example, if \c m1 and \c m2 are both maps with \c double |
---|
| 825 | /// values, then <tt>addMap(m1,m2)[x]</tt> will be equal to |
---|
| 826 | /// <tt>m1[x]+m2[x]</tt>. |
---|
| 827 | /// |
---|
| 828 | /// \relates AddMap |
---|
| 829 | template<typename M1, typename M2> |
---|
| 830 | inline AddMap<M1, M2> addMap(const M1 &m1, const M2 &m2) { |
---|
[25] | 831 | return AddMap<M1, M2>(m1,m2); |
---|
| 832 | } |
---|
| 833 | |
---|
| 834 | |
---|
[80] | 835 | /// Difference of two maps |
---|
| 836 | |
---|
[82] | 837 | /// This \ref concepts::ReadMap "read-only map" returns the difference |
---|
[80] | 838 | /// of the values of the two given maps. |
---|
| 839 | /// Its \c Key and \c Value types are inherited from \c M1. |
---|
| 840 | /// The \c Key and \c Value of \c M2 must be convertible to those of |
---|
| 841 | /// \c M1. |
---|
[25] | 842 | /// |
---|
[80] | 843 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
| 844 | /// \code |
---|
| 845 | /// SubMap<M1,M2> sm(m1,m2); |
---|
| 846 | /// \endcode |
---|
| 847 | /// <tt>sm[x]</tt> will be equal to <tt>m1[x]-m2[x]</tt>. |
---|
[29] | 848 | /// |
---|
[80] | 849 | /// The simplest way of using this map is through the subMap() |
---|
| 850 | /// function. |
---|
| 851 | /// |
---|
| 852 | /// \sa AddMap, MulMap, DivMap |
---|
| 853 | template<typename M1, typename M2> |
---|
| 854 | class SubMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
| 855 | const M1 &_m1; |
---|
| 856 | const M2 &_m2; |
---|
| 857 | public: |
---|
[559] | 858 | ///\e |
---|
| 859 | typedef typename M1::Key Key; |
---|
| 860 | ///\e |
---|
| 861 | typedef typename M1::Value Value; |
---|
[80] | 862 | |
---|
| 863 | /// Constructor |
---|
| 864 | SubMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
[559] | 865 | ///\e |
---|
[80] | 866 | Value operator[](const Key &k) const { return _m1[k]-_m2[k]; } |
---|
| 867 | }; |
---|
| 868 | |
---|
[301] | 869 | /// Returns a \c SubMap class |
---|
| 870 | |
---|
| 871 | /// This function just returns a \c SubMap class. |
---|
[80] | 872 | /// |
---|
| 873 | /// For example, if \c m1 and \c m2 are both maps with \c double |
---|
| 874 | /// values, then <tt>subMap(m1,m2)[x]</tt> will be equal to |
---|
| 875 | /// <tt>m1[x]-m2[x]</tt>. |
---|
| 876 | /// |
---|
| 877 | /// \relates SubMap |
---|
| 878 | template<typename M1, typename M2> |
---|
| 879 | inline SubMap<M1, M2> subMap(const M1 &m1, const M2 &m2) { |
---|
| 880 | return SubMap<M1, M2>(m1,m2); |
---|
| 881 | } |
---|
| 882 | |
---|
| 883 | |
---|
| 884 | /// Product of two maps |
---|
| 885 | |
---|
[82] | 886 | /// This \ref concepts::ReadMap "read-only map" returns the product |
---|
[80] | 887 | /// of the values of the two given maps. |
---|
| 888 | /// Its \c Key and \c Value types are inherited from \c M1. |
---|
| 889 | /// The \c Key and \c Value of \c M2 must be convertible to those of |
---|
| 890 | /// \c M1. |
---|
| 891 | /// |
---|
| 892 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
| 893 | /// \code |
---|
| 894 | /// MulMap<M1,M2> mm(m1,m2); |
---|
| 895 | /// \endcode |
---|
| 896 | /// <tt>mm[x]</tt> will be equal to <tt>m1[x]*m2[x]</tt>. |
---|
| 897 | /// |
---|
| 898 | /// The simplest way of using this map is through the mulMap() |
---|
| 899 | /// function. |
---|
| 900 | /// |
---|
| 901 | /// \sa AddMap, SubMap, DivMap |
---|
| 902 | /// \sa ScaleMap, ScaleWriteMap |
---|
| 903 | template<typename M1, typename M2> |
---|
| 904 | class MulMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
| 905 | const M1 &_m1; |
---|
| 906 | const M2 &_m2; |
---|
| 907 | public: |
---|
[559] | 908 | ///\e |
---|
| 909 | typedef typename M1::Key Key; |
---|
| 910 | ///\e |
---|
| 911 | typedef typename M1::Value Value; |
---|
[80] | 912 | |
---|
| 913 | /// Constructor |
---|
| 914 | MulMap(const M1 &m1,const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
[559] | 915 | ///\e |
---|
[80] | 916 | Value operator[](const Key &k) const { return _m1[k]*_m2[k]; } |
---|
| 917 | }; |
---|
| 918 | |
---|
[301] | 919 | /// Returns a \c MulMap class |
---|
| 920 | |
---|
| 921 | /// This function just returns a \c MulMap class. |
---|
[80] | 922 | /// |
---|
| 923 | /// For example, if \c m1 and \c m2 are both maps with \c double |
---|
| 924 | /// values, then <tt>mulMap(m1,m2)[x]</tt> will be equal to |
---|
| 925 | /// <tt>m1[x]*m2[x]</tt>. |
---|
| 926 | /// |
---|
| 927 | /// \relates MulMap |
---|
| 928 | template<typename M1, typename M2> |
---|
| 929 | inline MulMap<M1, M2> mulMap(const M1 &m1,const M2 &m2) { |
---|
| 930 | return MulMap<M1, M2>(m1,m2); |
---|
| 931 | } |
---|
| 932 | |
---|
| 933 | |
---|
| 934 | /// Quotient of two maps |
---|
| 935 | |
---|
[82] | 936 | /// This \ref concepts::ReadMap "read-only map" returns the quotient |
---|
[80] | 937 | /// of the values of the two given maps. |
---|
| 938 | /// Its \c Key and \c Value types are inherited from \c M1. |
---|
| 939 | /// The \c Key and \c Value of \c M2 must be convertible to those of |
---|
| 940 | /// \c M1. |
---|
| 941 | /// |
---|
| 942 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
| 943 | /// \code |
---|
| 944 | /// DivMap<M1,M2> dm(m1,m2); |
---|
| 945 | /// \endcode |
---|
| 946 | /// <tt>dm[x]</tt> will be equal to <tt>m1[x]/m2[x]</tt>. |
---|
| 947 | /// |
---|
| 948 | /// The simplest way of using this map is through the divMap() |
---|
| 949 | /// function. |
---|
| 950 | /// |
---|
| 951 | /// \sa AddMap, SubMap, MulMap |
---|
| 952 | template<typename M1, typename M2> |
---|
| 953 | class DivMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
| 954 | const M1 &_m1; |
---|
| 955 | const M2 &_m2; |
---|
| 956 | public: |
---|
[559] | 957 | ///\e |
---|
| 958 | typedef typename M1::Key Key; |
---|
| 959 | ///\e |
---|
| 960 | typedef typename M1::Value Value; |
---|
[80] | 961 | |
---|
| 962 | /// Constructor |
---|
| 963 | DivMap(const M1 &m1,const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
[559] | 964 | ///\e |
---|
[80] | 965 | Value operator[](const Key &k) const { return _m1[k]/_m2[k]; } |
---|
| 966 | }; |
---|
| 967 | |
---|
[301] | 968 | /// Returns a \c DivMap class |
---|
| 969 | |
---|
| 970 | /// This function just returns a \c DivMap class. |
---|
[80] | 971 | /// |
---|
| 972 | /// For example, if \c m1 and \c m2 are both maps with \c double |
---|
| 973 | /// values, then <tt>divMap(m1,m2)[x]</tt> will be equal to |
---|
| 974 | /// <tt>m1[x]/m2[x]</tt>. |
---|
| 975 | /// |
---|
| 976 | /// \relates DivMap |
---|
| 977 | template<typename M1, typename M2> |
---|
| 978 | inline DivMap<M1, M2> divMap(const M1 &m1,const M2 &m2) { |
---|
| 979 | return DivMap<M1, M2>(m1,m2); |
---|
| 980 | } |
---|
| 981 | |
---|
| 982 | |
---|
| 983 | /// Shifts a map with a constant. |
---|
| 984 | |
---|
[82] | 985 | /// This \ref concepts::ReadMap "read-only map" returns the sum of |
---|
[80] | 986 | /// the given map and a constant value (i.e. it shifts the map with |
---|
| 987 | /// the constant). Its \c Key and \c Value are inherited from \c M. |
---|
| 988 | /// |
---|
| 989 | /// Actually, |
---|
| 990 | /// \code |
---|
| 991 | /// ShiftMap<M> sh(m,v); |
---|
| 992 | /// \endcode |
---|
| 993 | /// is equivalent to |
---|
| 994 | /// \code |
---|
| 995 | /// ConstMap<M::Key, M::Value> cm(v); |
---|
| 996 | /// AddMap<M, ConstMap<M::Key, M::Value> > sh(m,cm); |
---|
| 997 | /// \endcode |
---|
| 998 | /// |
---|
| 999 | /// The simplest way of using this map is through the shiftMap() |
---|
| 1000 | /// function. |
---|
| 1001 | /// |
---|
| 1002 | /// \sa ShiftWriteMap |
---|
| 1003 | template<typename M, typename C = typename M::Value> |
---|
[25] | 1004 | class ShiftMap : public MapBase<typename M::Key, typename M::Value> { |
---|
[80] | 1005 | const M &_m; |
---|
| 1006 | C _v; |
---|
[25] | 1007 | public: |
---|
[559] | 1008 | ///\e |
---|
| 1009 | typedef typename M::Key Key; |
---|
| 1010 | ///\e |
---|
| 1011 | typedef typename M::Value Value; |
---|
[25] | 1012 | |
---|
[80] | 1013 | /// Constructor |
---|
[25] | 1014 | |
---|
[80] | 1015 | /// Constructor. |
---|
| 1016 | /// \param m The undelying map. |
---|
| 1017 | /// \param v The constant value. |
---|
| 1018 | ShiftMap(const M &m, const C &v) : _m(m), _v(v) {} |
---|
[559] | 1019 | ///\e |
---|
[80] | 1020 | Value operator[](const Key &k) const { return _m[k]+_v; } |
---|
[25] | 1021 | }; |
---|
| 1022 | |
---|
[80] | 1023 | /// Shifts a map with a constant (read-write version). |
---|
[25] | 1024 | |
---|
[80] | 1025 | /// This \ref concepts::ReadWriteMap "read-write map" returns the sum |
---|
| 1026 | /// of the given map and a constant value (i.e. it shifts the map with |
---|
| 1027 | /// the constant). Its \c Key and \c Value are inherited from \c M. |
---|
| 1028 | /// It makes also possible to write the map. |
---|
[25] | 1029 | /// |
---|
[80] | 1030 | /// The simplest way of using this map is through the shiftWriteMap() |
---|
| 1031 | /// function. |
---|
| 1032 | /// |
---|
| 1033 | /// \sa ShiftMap |
---|
| 1034 | template<typename M, typename C = typename M::Value> |
---|
[25] | 1035 | class ShiftWriteMap : public MapBase<typename M::Key, typename M::Value> { |
---|
[80] | 1036 | M &_m; |
---|
| 1037 | C _v; |
---|
[25] | 1038 | public: |
---|
[559] | 1039 | ///\e |
---|
| 1040 | typedef typename M::Key Key; |
---|
| 1041 | ///\e |
---|
| 1042 | typedef typename M::Value Value; |
---|
[25] | 1043 | |
---|
[80] | 1044 | /// Constructor |
---|
[25] | 1045 | |
---|
[80] | 1046 | /// Constructor. |
---|
| 1047 | /// \param m The undelying map. |
---|
| 1048 | /// \param v The constant value. |
---|
| 1049 | ShiftWriteMap(M &m, const C &v) : _m(m), _v(v) {} |
---|
[559] | 1050 | ///\e |
---|
[80] | 1051 | Value operator[](const Key &k) const { return _m[k]+_v; } |
---|
[559] | 1052 | ///\e |
---|
[80] | 1053 | void set(const Key &k, const Value &v) { _m.set(k, v-_v); } |
---|
[25] | 1054 | }; |
---|
| 1055 | |
---|
[301] | 1056 | /// Returns a \c ShiftMap class |
---|
| 1057 | |
---|
| 1058 | /// This function just returns a \c ShiftMap class. |
---|
[80] | 1059 | /// |
---|
| 1060 | /// For example, if \c m is a map with \c double values and \c v is |
---|
| 1061 | /// \c double, then <tt>shiftMap(m,v)[x]</tt> will be equal to |
---|
| 1062 | /// <tt>m[x]+v</tt>. |
---|
| 1063 | /// |
---|
| 1064 | /// \relates ShiftMap |
---|
| 1065 | template<typename M, typename C> |
---|
| 1066 | inline ShiftMap<M, C> shiftMap(const M &m, const C &v) { |
---|
[25] | 1067 | return ShiftMap<M, C>(m,v); |
---|
| 1068 | } |
---|
| 1069 | |
---|
[301] | 1070 | /// Returns a \c ShiftWriteMap class |
---|
| 1071 | |
---|
| 1072 | /// This function just returns a \c ShiftWriteMap class. |
---|
[80] | 1073 | /// |
---|
| 1074 | /// For example, if \c m is a map with \c double values and \c v is |
---|
| 1075 | /// \c double, then <tt>shiftWriteMap(m,v)[x]</tt> will be equal to |
---|
| 1076 | /// <tt>m[x]+v</tt>. |
---|
| 1077 | /// Moreover it makes also possible to write the map. |
---|
| 1078 | /// |
---|
| 1079 | /// \relates ShiftWriteMap |
---|
| 1080 | template<typename M, typename C> |
---|
| 1081 | inline ShiftWriteMap<M, C> shiftWriteMap(M &m, const C &v) { |
---|
[25] | 1082 | return ShiftWriteMap<M, C>(m,v); |
---|
| 1083 | } |
---|
| 1084 | |
---|
| 1085 | |
---|
[80] | 1086 | /// Scales a map with a constant. |
---|
| 1087 | |
---|
[82] | 1088 | /// This \ref concepts::ReadMap "read-only map" returns the value of |
---|
[80] | 1089 | /// the given map multiplied from the left side with a constant value. |
---|
| 1090 | /// Its \c Key and \c Value are inherited from \c M. |
---|
[26] | 1091 | /// |
---|
[80] | 1092 | /// Actually, |
---|
| 1093 | /// \code |
---|
| 1094 | /// ScaleMap<M> sc(m,v); |
---|
| 1095 | /// \endcode |
---|
| 1096 | /// is equivalent to |
---|
| 1097 | /// \code |
---|
| 1098 | /// ConstMap<M::Key, M::Value> cm(v); |
---|
| 1099 | /// MulMap<ConstMap<M::Key, M::Value>, M> sc(cm,m); |
---|
| 1100 | /// \endcode |
---|
[25] | 1101 | /// |
---|
[80] | 1102 | /// The simplest way of using this map is through the scaleMap() |
---|
| 1103 | /// function. |
---|
[25] | 1104 | /// |
---|
[80] | 1105 | /// \sa ScaleWriteMap |
---|
| 1106 | template<typename M, typename C = typename M::Value> |
---|
[25] | 1107 | class ScaleMap : public MapBase<typename M::Key, typename M::Value> { |
---|
[80] | 1108 | const M &_m; |
---|
| 1109 | C _v; |
---|
[25] | 1110 | public: |
---|
[559] | 1111 | ///\e |
---|
| 1112 | typedef typename M::Key Key; |
---|
| 1113 | ///\e |
---|
| 1114 | typedef typename M::Value Value; |
---|
[25] | 1115 | |
---|
[80] | 1116 | /// Constructor |
---|
[25] | 1117 | |
---|
[80] | 1118 | /// Constructor. |
---|
| 1119 | /// \param m The undelying map. |
---|
| 1120 | /// \param v The constant value. |
---|
| 1121 | ScaleMap(const M &m, const C &v) : _m(m), _v(v) {} |
---|
[559] | 1122 | ///\e |
---|
[80] | 1123 | Value operator[](const Key &k) const { return _v*_m[k]; } |
---|
[25] | 1124 | }; |
---|
| 1125 | |
---|
[80] | 1126 | /// Scales a map with a constant (read-write version). |
---|
[25] | 1127 | |
---|
[80] | 1128 | /// This \ref concepts::ReadWriteMap "read-write map" returns the value of |
---|
| 1129 | /// the given map multiplied from the left side with a constant value. |
---|
| 1130 | /// Its \c Key and \c Value are inherited from \c M. |
---|
| 1131 | /// It can also be used as write map if the \c / operator is defined |
---|
| 1132 | /// between \c Value and \c C and the given multiplier is not zero. |
---|
[29] | 1133 | /// |
---|
[80] | 1134 | /// The simplest way of using this map is through the scaleWriteMap() |
---|
| 1135 | /// function. |
---|
| 1136 | /// |
---|
| 1137 | /// \sa ScaleMap |
---|
| 1138 | template<typename M, typename C = typename M::Value> |
---|
[25] | 1139 | class ScaleWriteMap : public MapBase<typename M::Key, typename M::Value> { |
---|
[80] | 1140 | M &_m; |
---|
| 1141 | C _v; |
---|
[25] | 1142 | public: |
---|
[559] | 1143 | ///\e |
---|
| 1144 | typedef typename M::Key Key; |
---|
| 1145 | ///\e |
---|
| 1146 | typedef typename M::Value Value; |
---|
[25] | 1147 | |
---|
[80] | 1148 | /// Constructor |
---|
[25] | 1149 | |
---|
[80] | 1150 | /// Constructor. |
---|
| 1151 | /// \param m The undelying map. |
---|
| 1152 | /// \param v The constant value. |
---|
| 1153 | ScaleWriteMap(M &m, const C &v) : _m(m), _v(v) {} |
---|
[559] | 1154 | ///\e |
---|
[80] | 1155 | Value operator[](const Key &k) const { return _v*_m[k]; } |
---|
[559] | 1156 | ///\e |
---|
[80] | 1157 | void set(const Key &k, const Value &v) { _m.set(k, v/_v); } |
---|
[25] | 1158 | }; |
---|
| 1159 | |
---|
[301] | 1160 | /// Returns a \c ScaleMap class |
---|
| 1161 | |
---|
| 1162 | /// This function just returns a \c ScaleMap class. |
---|
[80] | 1163 | /// |
---|
| 1164 | /// For example, if \c m is a map with \c double values and \c v is |
---|
| 1165 | /// \c double, then <tt>scaleMap(m,v)[x]</tt> will be equal to |
---|
| 1166 | /// <tt>v*m[x]</tt>. |
---|
| 1167 | /// |
---|
| 1168 | /// \relates ScaleMap |
---|
| 1169 | template<typename M, typename C> |
---|
| 1170 | inline ScaleMap<M, C> scaleMap(const M &m, const C &v) { |
---|
[25] | 1171 | return ScaleMap<M, C>(m,v); |
---|
| 1172 | } |
---|
| 1173 | |
---|
[301] | 1174 | /// Returns a \c ScaleWriteMap class |
---|
| 1175 | |
---|
| 1176 | /// This function just returns a \c ScaleWriteMap class. |
---|
[80] | 1177 | /// |
---|
| 1178 | /// For example, if \c m is a map with \c double values and \c v is |
---|
| 1179 | /// \c double, then <tt>scaleWriteMap(m,v)[x]</tt> will be equal to |
---|
| 1180 | /// <tt>v*m[x]</tt>. |
---|
| 1181 | /// Moreover it makes also possible to write the map. |
---|
| 1182 | /// |
---|
| 1183 | /// \relates ScaleWriteMap |
---|
| 1184 | template<typename M, typename C> |
---|
| 1185 | inline ScaleWriteMap<M, C> scaleWriteMap(M &m, const C &v) { |
---|
[25] | 1186 | return ScaleWriteMap<M, C>(m,v); |
---|
| 1187 | } |
---|
| 1188 | |
---|
| 1189 | |
---|
[80] | 1190 | /// Negative of a map |
---|
[25] | 1191 | |
---|
[82] | 1192 | /// This \ref concepts::ReadMap "read-only map" returns the negative |
---|
[80] | 1193 | /// of the values of the given map (using the unary \c - operator). |
---|
| 1194 | /// Its \c Key and \c Value are inherited from \c M. |
---|
[25] | 1195 | /// |
---|
[80] | 1196 | /// If M::Value is \c int, \c double etc., then |
---|
| 1197 | /// \code |
---|
| 1198 | /// NegMap<M> neg(m); |
---|
| 1199 | /// \endcode |
---|
| 1200 | /// is equivalent to |
---|
| 1201 | /// \code |
---|
| 1202 | /// ScaleMap<M> neg(m,-1); |
---|
| 1203 | /// \endcode |
---|
[29] | 1204 | /// |
---|
[80] | 1205 | /// The simplest way of using this map is through the negMap() |
---|
| 1206 | /// function. |
---|
[29] | 1207 | /// |
---|
[80] | 1208 | /// \sa NegWriteMap |
---|
| 1209 | template<typename M> |
---|
[25] | 1210 | class NegMap : public MapBase<typename M::Key, typename M::Value> { |
---|
[80] | 1211 | const M& _m; |
---|
[25] | 1212 | public: |
---|
[559] | 1213 | ///\e |
---|
| 1214 | typedef typename M::Key Key; |
---|
| 1215 | ///\e |
---|
| 1216 | typedef typename M::Value Value; |
---|
[25] | 1217 | |
---|
[80] | 1218 | /// Constructor |
---|
| 1219 | NegMap(const M &m) : _m(m) {} |
---|
[559] | 1220 | ///\e |
---|
[80] | 1221 | Value operator[](const Key &k) const { return -_m[k]; } |
---|
[25] | 1222 | }; |
---|
| 1223 | |
---|
[80] | 1224 | /// Negative of a map (read-write version) |
---|
| 1225 | |
---|
| 1226 | /// This \ref concepts::ReadWriteMap "read-write map" returns the |
---|
| 1227 | /// negative of the values of the given map (using the unary \c - |
---|
| 1228 | /// operator). |
---|
| 1229 | /// Its \c Key and \c Value are inherited from \c M. |
---|
| 1230 | /// It makes also possible to write the map. |
---|
| 1231 | /// |
---|
| 1232 | /// If M::Value is \c int, \c double etc., then |
---|
| 1233 | /// \code |
---|
| 1234 | /// NegWriteMap<M> neg(m); |
---|
| 1235 | /// \endcode |
---|
| 1236 | /// is equivalent to |
---|
| 1237 | /// \code |
---|
| 1238 | /// ScaleWriteMap<M> neg(m,-1); |
---|
| 1239 | /// \endcode |
---|
| 1240 | /// |
---|
| 1241 | /// The simplest way of using this map is through the negWriteMap() |
---|
| 1242 | /// function. |
---|
[29] | 1243 | /// |
---|
| 1244 | /// \sa NegMap |
---|
[80] | 1245 | template<typename M> |
---|
[25] | 1246 | class NegWriteMap : public MapBase<typename M::Key, typename M::Value> { |
---|
[80] | 1247 | M &_m; |
---|
[25] | 1248 | public: |
---|
[559] | 1249 | ///\e |
---|
| 1250 | typedef typename M::Key Key; |
---|
| 1251 | ///\e |
---|
| 1252 | typedef typename M::Value Value; |
---|
[25] | 1253 | |
---|
[80] | 1254 | /// Constructor |
---|
| 1255 | NegWriteMap(M &m) : _m(m) {} |
---|
[559] | 1256 | ///\e |
---|
[80] | 1257 | Value operator[](const Key &k) const { return -_m[k]; } |
---|
[559] | 1258 | ///\e |
---|
[80] | 1259 | void set(const Key &k, const Value &v) { _m.set(k, -v); } |
---|
[25] | 1260 | }; |
---|
| 1261 | |
---|
[301] | 1262 | /// Returns a \c NegMap class |
---|
| 1263 | |
---|
| 1264 | /// This function just returns a \c NegMap class. |
---|
[80] | 1265 | /// |
---|
| 1266 | /// For example, if \c m is a map with \c double values, then |
---|
| 1267 | /// <tt>negMap(m)[x]</tt> will be equal to <tt>-m[x]</tt>. |
---|
| 1268 | /// |
---|
| 1269 | /// \relates NegMap |
---|
| 1270 | template <typename M> |
---|
[25] | 1271 | inline NegMap<M> negMap(const M &m) { |
---|
| 1272 | return NegMap<M>(m); |
---|
| 1273 | } |
---|
| 1274 | |
---|
[301] | 1275 | /// Returns a \c NegWriteMap class |
---|
| 1276 | |
---|
| 1277 | /// This function just returns a \c NegWriteMap class. |
---|
[80] | 1278 | /// |
---|
| 1279 | /// For example, if \c m is a map with \c double values, then |
---|
| 1280 | /// <tt>negWriteMap(m)[x]</tt> will be equal to <tt>-m[x]</tt>. |
---|
| 1281 | /// Moreover it makes also possible to write the map. |
---|
| 1282 | /// |
---|
| 1283 | /// \relates NegWriteMap |
---|
| 1284 | template <typename M> |
---|
| 1285 | inline NegWriteMap<M> negWriteMap(M &m) { |
---|
[25] | 1286 | return NegWriteMap<M>(m); |
---|
| 1287 | } |
---|
| 1288 | |
---|
| 1289 | |
---|
[80] | 1290 | /// Absolute value of a map |
---|
| 1291 | |
---|
[82] | 1292 | /// This \ref concepts::ReadMap "read-only map" returns the absolute |
---|
[80] | 1293 | /// value of the values of the given map. |
---|
| 1294 | /// Its \c Key and \c Value are inherited from \c M. |
---|
| 1295 | /// \c Value must be comparable to \c 0 and the unary \c - |
---|
| 1296 | /// operator must be defined for it, of course. |
---|
| 1297 | /// |
---|
| 1298 | /// The simplest way of using this map is through the absMap() |
---|
| 1299 | /// function. |
---|
| 1300 | template<typename M> |
---|
[25] | 1301 | class AbsMap : public MapBase<typename M::Key, typename M::Value> { |
---|
[80] | 1302 | const M &_m; |
---|
[25] | 1303 | public: |
---|
[559] | 1304 | ///\e |
---|
| 1305 | typedef typename M::Key Key; |
---|
| 1306 | ///\e |
---|
| 1307 | typedef typename M::Value Value; |
---|
[25] | 1308 | |
---|
[80] | 1309 | /// Constructor |
---|
| 1310 | AbsMap(const M &m) : _m(m) {} |
---|
[559] | 1311 | ///\e |
---|
[80] | 1312 | Value operator[](const Key &k) const { |
---|
| 1313 | Value tmp = _m[k]; |
---|
[25] | 1314 | return tmp >= 0 ? tmp : -tmp; |
---|
| 1315 | } |
---|
| 1316 | |
---|
| 1317 | }; |
---|
| 1318 | |
---|
[301] | 1319 | /// Returns an \c AbsMap class |
---|
| 1320 | |
---|
| 1321 | /// This function just returns an \c AbsMap class. |
---|
[80] | 1322 | /// |
---|
| 1323 | /// For example, if \c m is a map with \c double values, then |
---|
| 1324 | /// <tt>absMap(m)[x]</tt> will be equal to <tt>m[x]</tt> if |
---|
| 1325 | /// it is positive or zero and <tt>-m[x]</tt> if <tt>m[x]</tt> is |
---|
| 1326 | /// negative. |
---|
| 1327 | /// |
---|
| 1328 | /// \relates AbsMap |
---|
| 1329 | template<typename M> |
---|
[25] | 1330 | inline AbsMap<M> absMap(const M &m) { |
---|
| 1331 | return AbsMap<M>(m); |
---|
| 1332 | } |
---|
| 1333 | |
---|
[82] | 1334 | /// @} |
---|
[209] | 1335 | |
---|
[82] | 1336 | // Logical maps and map adaptors: |
---|
| 1337 | |
---|
| 1338 | /// \addtogroup maps |
---|
| 1339 | /// @{ |
---|
| 1340 | |
---|
| 1341 | /// Constant \c true map. |
---|
| 1342 | |
---|
| 1343 | /// This \ref concepts::ReadMap "read-only map" assigns \c true to |
---|
| 1344 | /// each key. |
---|
| 1345 | /// |
---|
| 1346 | /// Note that |
---|
| 1347 | /// \code |
---|
| 1348 | /// TrueMap<K> tm; |
---|
| 1349 | /// \endcode |
---|
| 1350 | /// is equivalent to |
---|
| 1351 | /// \code |
---|
| 1352 | /// ConstMap<K,bool> tm(true); |
---|
| 1353 | /// \endcode |
---|
| 1354 | /// |
---|
| 1355 | /// \sa FalseMap |
---|
| 1356 | /// \sa ConstMap |
---|
| 1357 | template <typename K> |
---|
| 1358 | class TrueMap : public MapBase<K, bool> { |
---|
| 1359 | public: |
---|
[559] | 1360 | ///\e |
---|
| 1361 | typedef K Key; |
---|
| 1362 | ///\e |
---|
| 1363 | typedef bool Value; |
---|
[82] | 1364 | |
---|
| 1365 | /// Gives back \c true. |
---|
| 1366 | Value operator[](const Key&) const { return true; } |
---|
| 1367 | }; |
---|
| 1368 | |
---|
[301] | 1369 | /// Returns a \c TrueMap class |
---|
| 1370 | |
---|
| 1371 | /// This function just returns a \c TrueMap class. |
---|
[82] | 1372 | /// \relates TrueMap |
---|
| 1373 | template<typename K> |
---|
| 1374 | inline TrueMap<K> trueMap() { |
---|
| 1375 | return TrueMap<K>(); |
---|
| 1376 | } |
---|
| 1377 | |
---|
| 1378 | |
---|
| 1379 | /// Constant \c false map. |
---|
| 1380 | |
---|
| 1381 | /// This \ref concepts::ReadMap "read-only map" assigns \c false to |
---|
| 1382 | /// each key. |
---|
| 1383 | /// |
---|
| 1384 | /// Note that |
---|
| 1385 | /// \code |
---|
| 1386 | /// FalseMap<K> fm; |
---|
| 1387 | /// \endcode |
---|
| 1388 | /// is equivalent to |
---|
| 1389 | /// \code |
---|
| 1390 | /// ConstMap<K,bool> fm(false); |
---|
| 1391 | /// \endcode |
---|
| 1392 | /// |
---|
| 1393 | /// \sa TrueMap |
---|
| 1394 | /// \sa ConstMap |
---|
| 1395 | template <typename K> |
---|
| 1396 | class FalseMap : public MapBase<K, bool> { |
---|
| 1397 | public: |
---|
[559] | 1398 | ///\e |
---|
| 1399 | typedef K Key; |
---|
| 1400 | ///\e |
---|
| 1401 | typedef bool Value; |
---|
[82] | 1402 | |
---|
| 1403 | /// Gives back \c false. |
---|
| 1404 | Value operator[](const Key&) const { return false; } |
---|
| 1405 | }; |
---|
| 1406 | |
---|
[301] | 1407 | /// Returns a \c FalseMap class |
---|
| 1408 | |
---|
| 1409 | /// This function just returns a \c FalseMap class. |
---|
[82] | 1410 | /// \relates FalseMap |
---|
| 1411 | template<typename K> |
---|
| 1412 | inline FalseMap<K> falseMap() { |
---|
| 1413 | return FalseMap<K>(); |
---|
| 1414 | } |
---|
| 1415 | |
---|
| 1416 | /// @} |
---|
| 1417 | |
---|
| 1418 | /// \addtogroup map_adaptors |
---|
| 1419 | /// @{ |
---|
| 1420 | |
---|
| 1421 | /// Logical 'and' of two maps |
---|
| 1422 | |
---|
| 1423 | /// This \ref concepts::ReadMap "read-only map" returns the logical |
---|
| 1424 | /// 'and' of the values of the two given maps. |
---|
| 1425 | /// Its \c Key type is inherited from \c M1 and its \c Value type is |
---|
| 1426 | /// \c bool. \c M2::Key must be convertible to \c M1::Key. |
---|
| 1427 | /// |
---|
| 1428 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
| 1429 | /// \code |
---|
| 1430 | /// AndMap<M1,M2> am(m1,m2); |
---|
| 1431 | /// \endcode |
---|
| 1432 | /// <tt>am[x]</tt> will be equal to <tt>m1[x]&&m2[x]</tt>. |
---|
| 1433 | /// |
---|
| 1434 | /// The simplest way of using this map is through the andMap() |
---|
| 1435 | /// function. |
---|
| 1436 | /// |
---|
| 1437 | /// \sa OrMap |
---|
| 1438 | /// \sa NotMap, NotWriteMap |
---|
| 1439 | template<typename M1, typename M2> |
---|
| 1440 | class AndMap : public MapBase<typename M1::Key, bool> { |
---|
| 1441 | const M1 &_m1; |
---|
| 1442 | const M2 &_m2; |
---|
| 1443 | public: |
---|
[559] | 1444 | ///\e |
---|
| 1445 | typedef typename M1::Key Key; |
---|
| 1446 | ///\e |
---|
| 1447 | typedef bool Value; |
---|
[82] | 1448 | |
---|
| 1449 | /// Constructor |
---|
| 1450 | AndMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
[559] | 1451 | ///\e |
---|
[82] | 1452 | Value operator[](const Key &k) const { return _m1[k]&&_m2[k]; } |
---|
| 1453 | }; |
---|
| 1454 | |
---|
[301] | 1455 | /// Returns an \c AndMap class |
---|
| 1456 | |
---|
| 1457 | /// This function just returns an \c AndMap class. |
---|
[82] | 1458 | /// |
---|
| 1459 | /// For example, if \c m1 and \c m2 are both maps with \c bool values, |
---|
| 1460 | /// then <tt>andMap(m1,m2)[x]</tt> will be equal to |
---|
| 1461 | /// <tt>m1[x]&&m2[x]</tt>. |
---|
| 1462 | /// |
---|
| 1463 | /// \relates AndMap |
---|
| 1464 | template<typename M1, typename M2> |
---|
| 1465 | inline AndMap<M1, M2> andMap(const M1 &m1, const M2 &m2) { |
---|
| 1466 | return AndMap<M1, M2>(m1,m2); |
---|
| 1467 | } |
---|
| 1468 | |
---|
| 1469 | |
---|
| 1470 | /// Logical 'or' of two maps |
---|
| 1471 | |
---|
| 1472 | /// This \ref concepts::ReadMap "read-only map" returns the logical |
---|
| 1473 | /// 'or' of the values of the two given maps. |
---|
| 1474 | /// Its \c Key type is inherited from \c M1 and its \c Value type is |
---|
| 1475 | /// \c bool. \c M2::Key must be convertible to \c M1::Key. |
---|
| 1476 | /// |
---|
| 1477 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
| 1478 | /// \code |
---|
| 1479 | /// OrMap<M1,M2> om(m1,m2); |
---|
| 1480 | /// \endcode |
---|
| 1481 | /// <tt>om[x]</tt> will be equal to <tt>m1[x]||m2[x]</tt>. |
---|
| 1482 | /// |
---|
| 1483 | /// The simplest way of using this map is through the orMap() |
---|
| 1484 | /// function. |
---|
| 1485 | /// |
---|
| 1486 | /// \sa AndMap |
---|
| 1487 | /// \sa NotMap, NotWriteMap |
---|
| 1488 | template<typename M1, typename M2> |
---|
| 1489 | class OrMap : public MapBase<typename M1::Key, bool> { |
---|
| 1490 | const M1 &_m1; |
---|
| 1491 | const M2 &_m2; |
---|
| 1492 | public: |
---|
[559] | 1493 | ///\e |
---|
| 1494 | typedef typename M1::Key Key; |
---|
| 1495 | ///\e |
---|
| 1496 | typedef bool Value; |
---|
[82] | 1497 | |
---|
| 1498 | /// Constructor |
---|
| 1499 | OrMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
[559] | 1500 | ///\e |
---|
[82] | 1501 | Value operator[](const Key &k) const { return _m1[k]||_m2[k]; } |
---|
| 1502 | }; |
---|
| 1503 | |
---|
[301] | 1504 | /// Returns an \c OrMap class |
---|
| 1505 | |
---|
| 1506 | /// This function just returns an \c OrMap class. |
---|
[82] | 1507 | /// |
---|
| 1508 | /// For example, if \c m1 and \c m2 are both maps with \c bool values, |
---|
| 1509 | /// then <tt>orMap(m1,m2)[x]</tt> will be equal to |
---|
| 1510 | /// <tt>m1[x]||m2[x]</tt>. |
---|
| 1511 | /// |
---|
| 1512 | /// \relates OrMap |
---|
| 1513 | template<typename M1, typename M2> |
---|
| 1514 | inline OrMap<M1, M2> orMap(const M1 &m1, const M2 &m2) { |
---|
| 1515 | return OrMap<M1, M2>(m1,m2); |
---|
| 1516 | } |
---|
| 1517 | |
---|
[25] | 1518 | |
---|
[80] | 1519 | /// Logical 'not' of a map |
---|
| 1520 | |
---|
[82] | 1521 | /// This \ref concepts::ReadMap "read-only map" returns the logical |
---|
[80] | 1522 | /// negation of the values of the given map. |
---|
| 1523 | /// Its \c Key is inherited from \c M and its \c Value is \c bool. |
---|
[25] | 1524 | /// |
---|
[80] | 1525 | /// The simplest way of using this map is through the notMap() |
---|
| 1526 | /// function. |
---|
[25] | 1527 | /// |
---|
[80] | 1528 | /// \sa NotWriteMap |
---|
| 1529 | template <typename M> |
---|
[25] | 1530 | class NotMap : public MapBase<typename M::Key, bool> { |
---|
[80] | 1531 | const M &_m; |
---|
[25] | 1532 | public: |
---|
[559] | 1533 | ///\e |
---|
| 1534 | typedef typename M::Key Key; |
---|
| 1535 | ///\e |
---|
| 1536 | typedef bool Value; |
---|
[25] | 1537 | |
---|
| 1538 | /// Constructor |
---|
[80] | 1539 | NotMap(const M &m) : _m(m) {} |
---|
[559] | 1540 | ///\e |
---|
[80] | 1541 | Value operator[](const Key &k) const { return !_m[k]; } |
---|
[25] | 1542 | }; |
---|
| 1543 | |
---|
[80] | 1544 | /// Logical 'not' of a map (read-write version) |
---|
| 1545 | |
---|
| 1546 | /// This \ref concepts::ReadWriteMap "read-write map" returns the |
---|
| 1547 | /// logical negation of the values of the given map. |
---|
| 1548 | /// Its \c Key is inherited from \c M and its \c Value is \c bool. |
---|
| 1549 | /// It makes also possible to write the map. When a value is set, |
---|
| 1550 | /// the opposite value is set to the original map. |
---|
[29] | 1551 | /// |
---|
[80] | 1552 | /// The simplest way of using this map is through the notWriteMap() |
---|
| 1553 | /// function. |
---|
| 1554 | /// |
---|
| 1555 | /// \sa NotMap |
---|
| 1556 | template <typename M> |
---|
[25] | 1557 | class NotWriteMap : public MapBase<typename M::Key, bool> { |
---|
[80] | 1558 | M &_m; |
---|
[25] | 1559 | public: |
---|
[559] | 1560 | ///\e |
---|
| 1561 | typedef typename M::Key Key; |
---|
| 1562 | ///\e |
---|
| 1563 | typedef bool Value; |
---|
[25] | 1564 | |
---|
| 1565 | /// Constructor |
---|
[80] | 1566 | NotWriteMap(M &m) : _m(m) {} |
---|
[559] | 1567 | ///\e |
---|
[80] | 1568 | Value operator[](const Key &k) const { return !_m[k]; } |
---|
[559] | 1569 | ///\e |
---|
[80] | 1570 | void set(const Key &k, bool v) { _m.set(k, !v); } |
---|
[25] | 1571 | }; |
---|
[80] | 1572 | |
---|
[301] | 1573 | /// Returns a \c NotMap class |
---|
| 1574 | |
---|
| 1575 | /// This function just returns a \c NotMap class. |
---|
[80] | 1576 | /// |
---|
| 1577 | /// For example, if \c m is a map with \c bool values, then |
---|
| 1578 | /// <tt>notMap(m)[x]</tt> will be equal to <tt>!m[x]</tt>. |
---|
| 1579 | /// |
---|
| 1580 | /// \relates NotMap |
---|
| 1581 | template <typename M> |
---|
[25] | 1582 | inline NotMap<M> notMap(const M &m) { |
---|
| 1583 | return NotMap<M>(m); |
---|
| 1584 | } |
---|
[80] | 1585 | |
---|
[301] | 1586 | /// Returns a \c NotWriteMap class |
---|
| 1587 | |
---|
| 1588 | /// This function just returns a \c NotWriteMap class. |
---|
[80] | 1589 | /// |
---|
| 1590 | /// For example, if \c m is a map with \c bool values, then |
---|
| 1591 | /// <tt>notWriteMap(m)[x]</tt> will be equal to <tt>!m[x]</tt>. |
---|
| 1592 | /// Moreover it makes also possible to write the map. |
---|
| 1593 | /// |
---|
| 1594 | /// \relates NotWriteMap |
---|
| 1595 | template <typename M> |
---|
| 1596 | inline NotWriteMap<M> notWriteMap(M &m) { |
---|
[25] | 1597 | return NotWriteMap<M>(m); |
---|
| 1598 | } |
---|
| 1599 | |
---|
[82] | 1600 | |
---|
| 1601 | /// Combination of two maps using the \c == operator |
---|
| 1602 | |
---|
| 1603 | /// This \ref concepts::ReadMap "read-only map" assigns \c true to |
---|
| 1604 | /// the keys for which the corresponding values of the two maps are |
---|
| 1605 | /// equal. |
---|
| 1606 | /// Its \c Key type is inherited from \c M1 and its \c Value type is |
---|
| 1607 | /// \c bool. \c M2::Key must be convertible to \c M1::Key. |
---|
| 1608 | /// |
---|
| 1609 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
| 1610 | /// \code |
---|
| 1611 | /// EqualMap<M1,M2> em(m1,m2); |
---|
| 1612 | /// \endcode |
---|
| 1613 | /// <tt>em[x]</tt> will be equal to <tt>m1[x]==m2[x]</tt>. |
---|
| 1614 | /// |
---|
| 1615 | /// The simplest way of using this map is through the equalMap() |
---|
| 1616 | /// function. |
---|
| 1617 | /// |
---|
| 1618 | /// \sa LessMap |
---|
| 1619 | template<typename M1, typename M2> |
---|
| 1620 | class EqualMap : public MapBase<typename M1::Key, bool> { |
---|
| 1621 | const M1 &_m1; |
---|
| 1622 | const M2 &_m2; |
---|
| 1623 | public: |
---|
[559] | 1624 | ///\e |
---|
| 1625 | typedef typename M1::Key Key; |
---|
| 1626 | ///\e |
---|
| 1627 | typedef bool Value; |
---|
[82] | 1628 | |
---|
| 1629 | /// Constructor |
---|
| 1630 | EqualMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
[559] | 1631 | ///\e |
---|
[82] | 1632 | Value operator[](const Key &k) const { return _m1[k]==_m2[k]; } |
---|
| 1633 | }; |
---|
| 1634 | |
---|
[301] | 1635 | /// Returns an \c EqualMap class |
---|
| 1636 | |
---|
| 1637 | /// This function just returns an \c EqualMap class. |
---|
[82] | 1638 | /// |
---|
| 1639 | /// For example, if \c m1 and \c m2 are maps with keys and values of |
---|
| 1640 | /// the same type, then <tt>equalMap(m1,m2)[x]</tt> will be equal to |
---|
| 1641 | /// <tt>m1[x]==m2[x]</tt>. |
---|
| 1642 | /// |
---|
| 1643 | /// \relates EqualMap |
---|
| 1644 | template<typename M1, typename M2> |
---|
| 1645 | inline EqualMap<M1, M2> equalMap(const M1 &m1, const M2 &m2) { |
---|
| 1646 | return EqualMap<M1, M2>(m1,m2); |
---|
| 1647 | } |
---|
| 1648 | |
---|
| 1649 | |
---|
| 1650 | /// Combination of two maps using the \c < operator |
---|
| 1651 | |
---|
| 1652 | /// This \ref concepts::ReadMap "read-only map" assigns \c true to |
---|
| 1653 | /// the keys for which the corresponding value of the first map is |
---|
| 1654 | /// less then the value of the second map. |
---|
| 1655 | /// Its \c Key type is inherited from \c M1 and its \c Value type is |
---|
| 1656 | /// \c bool. \c M2::Key must be convertible to \c M1::Key. |
---|
| 1657 | /// |
---|
| 1658 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
| 1659 | /// \code |
---|
| 1660 | /// LessMap<M1,M2> lm(m1,m2); |
---|
| 1661 | /// \endcode |
---|
| 1662 | /// <tt>lm[x]</tt> will be equal to <tt>m1[x]<m2[x]</tt>. |
---|
| 1663 | /// |
---|
| 1664 | /// The simplest way of using this map is through the lessMap() |
---|
| 1665 | /// function. |
---|
| 1666 | /// |
---|
| 1667 | /// \sa EqualMap |
---|
| 1668 | template<typename M1, typename M2> |
---|
| 1669 | class LessMap : public MapBase<typename M1::Key, bool> { |
---|
| 1670 | const M1 &_m1; |
---|
| 1671 | const M2 &_m2; |
---|
| 1672 | public: |
---|
[559] | 1673 | ///\e |
---|
| 1674 | typedef typename M1::Key Key; |
---|
| 1675 | ///\e |
---|
| 1676 | typedef bool Value; |
---|
[82] | 1677 | |
---|
| 1678 | /// Constructor |
---|
| 1679 | LessMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
[559] | 1680 | ///\e |
---|
[82] | 1681 | Value operator[](const Key &k) const { return _m1[k]<_m2[k]; } |
---|
| 1682 | }; |
---|
| 1683 | |
---|
[301] | 1684 | /// Returns an \c LessMap class |
---|
| 1685 | |
---|
| 1686 | /// This function just returns an \c LessMap class. |
---|
[82] | 1687 | /// |
---|
| 1688 | /// For example, if \c m1 and \c m2 are maps with keys and values of |
---|
| 1689 | /// the same type, then <tt>lessMap(m1,m2)[x]</tt> will be equal to |
---|
| 1690 | /// <tt>m1[x]<m2[x]</tt>. |
---|
| 1691 | /// |
---|
| 1692 | /// \relates LessMap |
---|
| 1693 | template<typename M1, typename M2> |
---|
| 1694 | inline LessMap<M1, M2> lessMap(const M1 &m1, const M2 &m2) { |
---|
| 1695 | return LessMap<M1, M2>(m1,m2); |
---|
| 1696 | } |
---|
| 1697 | |
---|
[104] | 1698 | namespace _maps_bits { |
---|
| 1699 | |
---|
| 1700 | template <typename _Iterator, typename Enable = void> |
---|
| 1701 | struct IteratorTraits { |
---|
| 1702 | typedef typename std::iterator_traits<_Iterator>::value_type Value; |
---|
| 1703 | }; |
---|
| 1704 | |
---|
| 1705 | template <typename _Iterator> |
---|
| 1706 | struct IteratorTraits<_Iterator, |
---|
| 1707 | typename exists<typename _Iterator::container_type>::type> |
---|
| 1708 | { |
---|
| 1709 | typedef typename _Iterator::container_type::value_type Value; |
---|
| 1710 | }; |
---|
| 1711 | |
---|
| 1712 | } |
---|
| 1713 | |
---|
[314] | 1714 | /// @} |
---|
| 1715 | |
---|
| 1716 | /// \addtogroup maps |
---|
| 1717 | /// @{ |
---|
| 1718 | |
---|
[104] | 1719 | /// \brief Writable bool map for logging each \c true assigned element |
---|
| 1720 | /// |
---|
[159] | 1721 | /// A \ref concepts::WriteMap "writable" bool map for logging |
---|
[104] | 1722 | /// each \c true assigned element, i.e it copies subsequently each |
---|
| 1723 | /// keys set to \c true to the given iterator. |
---|
[159] | 1724 | /// The most important usage of it is storing certain nodes or arcs |
---|
| 1725 | /// that were marked \c true by an algorithm. |
---|
[104] | 1726 | /// |
---|
[159] | 1727 | /// There are several algorithms that provide solutions through bool |
---|
| 1728 | /// maps and most of them assign \c true at most once for each key. |
---|
| 1729 | /// In these cases it is a natural request to store each \c true |
---|
| 1730 | /// assigned elements (in order of the assignment), which can be |
---|
[167] | 1731 | /// easily done with LoggerBoolMap. |
---|
[159] | 1732 | /// |
---|
[167] | 1733 | /// The simplest way of using this map is through the loggerBoolMap() |
---|
[159] | 1734 | /// function. |
---|
| 1735 | /// |
---|
[559] | 1736 | /// \tparam IT The type of the iterator. |
---|
| 1737 | /// \tparam KEY The key type of the map. The default value set |
---|
[159] | 1738 | /// according to the iterator type should work in most cases. |
---|
[104] | 1739 | /// |
---|
| 1740 | /// \note The container of the iterator must contain enough space |
---|
[159] | 1741 | /// for the elements or the iterator should be an inserter iterator. |
---|
| 1742 | #ifdef DOXYGEN |
---|
[559] | 1743 | template <typename IT, typename KEY> |
---|
[159] | 1744 | #else |
---|
[559] | 1745 | template <typename IT, |
---|
| 1746 | typename KEY = typename _maps_bits::IteratorTraits<IT>::Value> |
---|
[159] | 1747 | #endif |
---|
[559] | 1748 | class LoggerBoolMap : public MapBase<KEY, bool> { |
---|
[104] | 1749 | public: |
---|
[559] | 1750 | |
---|
| 1751 | ///\e |
---|
| 1752 | typedef KEY Key; |
---|
| 1753 | ///\e |
---|
[104] | 1754 | typedef bool Value; |
---|
[559] | 1755 | ///\e |
---|
| 1756 | typedef IT Iterator; |
---|
[104] | 1757 | |
---|
| 1758 | /// Constructor |
---|
[167] | 1759 | LoggerBoolMap(Iterator it) |
---|
[104] | 1760 | : _begin(it), _end(it) {} |
---|
| 1761 | |
---|
| 1762 | /// Gives back the given iterator set for the first key |
---|
| 1763 | Iterator begin() const { |
---|
| 1764 | return _begin; |
---|
| 1765 | } |
---|
| 1766 | |
---|
| 1767 | /// Gives back the the 'after the last' iterator |
---|
| 1768 | Iterator end() const { |
---|
| 1769 | return _end; |
---|
| 1770 | } |
---|
| 1771 | |
---|
| 1772 | /// The set function of the map |
---|
[159] | 1773 | void set(const Key& key, Value value) { |
---|
[104] | 1774 | if (value) { |
---|
[209] | 1775 | *_end++ = key; |
---|
[104] | 1776 | } |
---|
| 1777 | } |
---|
| 1778 | |
---|
| 1779 | private: |
---|
| 1780 | Iterator _begin; |
---|
[159] | 1781 | Iterator _end; |
---|
[104] | 1782 | }; |
---|
[209] | 1783 | |
---|
[301] | 1784 | /// Returns a \c LoggerBoolMap class |
---|
| 1785 | |
---|
| 1786 | /// This function just returns a \c LoggerBoolMap class. |
---|
[159] | 1787 | /// |
---|
| 1788 | /// The most important usage of it is storing certain nodes or arcs |
---|
| 1789 | /// that were marked \c true by an algorithm. |
---|
| 1790 | /// For example it makes easier to store the nodes in the processing |
---|
| 1791 | /// order of Dfs algorithm, as the following examples show. |
---|
| 1792 | /// \code |
---|
| 1793 | /// std::vector<Node> v; |
---|
[167] | 1794 | /// dfs(g,s).processedMap(loggerBoolMap(std::back_inserter(v))).run(); |
---|
[159] | 1795 | /// \endcode |
---|
| 1796 | /// \code |
---|
| 1797 | /// std::vector<Node> v(countNodes(g)); |
---|
[167] | 1798 | /// dfs(g,s).processedMap(loggerBoolMap(v.begin())).run(); |
---|
[159] | 1799 | /// \endcode |
---|
| 1800 | /// |
---|
| 1801 | /// \note The container of the iterator must contain enough space |
---|
| 1802 | /// for the elements or the iterator should be an inserter iterator. |
---|
| 1803 | /// |
---|
[167] | 1804 | /// \note LoggerBoolMap is just \ref concepts::WriteMap "writable", so |
---|
[159] | 1805 | /// it cannot be used when a readable map is needed, for example as |
---|
[301] | 1806 | /// \c ReachedMap for \c Bfs, \c Dfs and \c Dijkstra algorithms. |
---|
[159] | 1807 | /// |
---|
[167] | 1808 | /// \relates LoggerBoolMap |
---|
[159] | 1809 | template<typename Iterator> |
---|
[167] | 1810 | inline LoggerBoolMap<Iterator> loggerBoolMap(Iterator it) { |
---|
| 1811 | return LoggerBoolMap<Iterator>(it); |
---|
[159] | 1812 | } |
---|
[104] | 1813 | |
---|
[314] | 1814 | /// @} |
---|
| 1815 | |
---|
| 1816 | /// \addtogroup graph_maps |
---|
| 1817 | /// @{ |
---|
| 1818 | |
---|
[559] | 1819 | /// \brief Provides an immutable and unique id for each item in a graph. |
---|
| 1820 | /// |
---|
| 1821 | /// IdMap provides a unique and immutable id for each item of the |
---|
[693] | 1822 | /// same type (\c Node, \c Arc or \c Edge) in a graph. This id is |
---|
[559] | 1823 | /// - \b unique: different items get different ids, |
---|
| 1824 | /// - \b immutable: the id of an item does not change (even if you |
---|
| 1825 | /// delete other nodes). |
---|
| 1826 | /// |
---|
| 1827 | /// Using this map you get access (i.e. can read) the inner id values of |
---|
| 1828 | /// the items stored in the graph, which is returned by the \c id() |
---|
| 1829 | /// function of the graph. This map can be inverted with its member |
---|
[220] | 1830 | /// class \c InverseMap or with the \c operator() member. |
---|
| 1831 | /// |
---|
[559] | 1832 | /// \tparam GR The graph type. |
---|
| 1833 | /// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or |
---|
| 1834 | /// \c GR::Edge). |
---|
| 1835 | /// |
---|
[572] | 1836 | /// \see RangeIdMap |
---|
[559] | 1837 | template <typename GR, typename K> |
---|
| 1838 | class IdMap : public MapBase<K, int> { |
---|
[220] | 1839 | public: |
---|
[559] | 1840 | /// The graph type of IdMap. |
---|
| 1841 | typedef GR Graph; |
---|
[617] | 1842 | typedef GR Digraph; |
---|
[559] | 1843 | /// The key type of IdMap (\c Node, \c Arc or \c Edge). |
---|
| 1844 | typedef K Item; |
---|
| 1845 | /// The key type of IdMap (\c Node, \c Arc or \c Edge). |
---|
| 1846 | typedef K Key; |
---|
| 1847 | /// The value type of IdMap. |
---|
[220] | 1848 | typedef int Value; |
---|
| 1849 | |
---|
| 1850 | /// \brief Constructor. |
---|
| 1851 | /// |
---|
| 1852 | /// Constructor of the map. |
---|
| 1853 | explicit IdMap(const Graph& graph) : _graph(&graph) {} |
---|
| 1854 | |
---|
| 1855 | /// \brief Gives back the \e id of the item. |
---|
| 1856 | /// |
---|
| 1857 | /// Gives back the immutable and unique \e id of the item. |
---|
| 1858 | int operator[](const Item& item) const { return _graph->id(item);} |
---|
| 1859 | |
---|
[559] | 1860 | /// \brief Gives back the \e item by its id. |
---|
[220] | 1861 | /// |
---|
[559] | 1862 | /// Gives back the \e item by its id. |
---|
[220] | 1863 | Item operator()(int id) { return _graph->fromId(id, Item()); } |
---|
| 1864 | |
---|
| 1865 | private: |
---|
| 1866 | const Graph* _graph; |
---|
| 1867 | |
---|
| 1868 | public: |
---|
| 1869 | |
---|
[559] | 1870 | /// \brief This class represents the inverse of its owner (IdMap). |
---|
[220] | 1871 | /// |
---|
[559] | 1872 | /// This class represents the inverse of its owner (IdMap). |
---|
[220] | 1873 | /// \see inverse() |
---|
| 1874 | class InverseMap { |
---|
| 1875 | public: |
---|
| 1876 | |
---|
| 1877 | /// \brief Constructor. |
---|
| 1878 | /// |
---|
| 1879 | /// Constructor for creating an id-to-item map. |
---|
| 1880 | explicit InverseMap(const Graph& graph) : _graph(&graph) {} |
---|
| 1881 | |
---|
| 1882 | /// \brief Constructor. |
---|
| 1883 | /// |
---|
| 1884 | /// Constructor for creating an id-to-item map. |
---|
| 1885 | explicit InverseMap(const IdMap& map) : _graph(map._graph) {} |
---|
| 1886 | |
---|
| 1887 | /// \brief Gives back the given item from its id. |
---|
| 1888 | /// |
---|
| 1889 | /// Gives back the given item from its id. |
---|
| 1890 | Item operator[](int id) const { return _graph->fromId(id, Item());} |
---|
| 1891 | |
---|
| 1892 | private: |
---|
| 1893 | const Graph* _graph; |
---|
| 1894 | }; |
---|
| 1895 | |
---|
| 1896 | /// \brief Gives back the inverse of the map. |
---|
| 1897 | /// |
---|
| 1898 | /// Gives back the inverse of the IdMap. |
---|
| 1899 | InverseMap inverse() const { return InverseMap(*_graph);} |
---|
| 1900 | }; |
---|
| 1901 | |
---|
| 1902 | |
---|
[572] | 1903 | /// \brief General cross reference graph map type. |
---|
[559] | 1904 | |
---|
| 1905 | /// This class provides simple invertable graph maps. |
---|
| 1906 | /// It wraps an arbitrary \ref concepts::ReadWriteMap "ReadWriteMap" |
---|
[220] | 1907 | /// and if a key is set to a new value then store it |
---|
| 1908 | /// in the inverse map. |
---|
| 1909 | /// |
---|
| 1910 | /// The values of the map can be accessed |
---|
| 1911 | /// with stl compatible forward iterator. |
---|
| 1912 | /// |
---|
[559] | 1913 | /// \tparam GR The graph type. |
---|
| 1914 | /// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or |
---|
| 1915 | /// \c GR::Edge). |
---|
| 1916 | /// \tparam V The value type of the map. |
---|
[220] | 1917 | /// |
---|
| 1918 | /// \see IterableValueMap |
---|
[559] | 1919 | template <typename GR, typename K, typename V> |
---|
[572] | 1920 | class CrossRefMap |
---|
[559] | 1921 | : protected ItemSetTraits<GR, K>::template Map<V>::Type { |
---|
[220] | 1922 | private: |
---|
| 1923 | |
---|
[559] | 1924 | typedef typename ItemSetTraits<GR, K>:: |
---|
| 1925 | template Map<V>::Type Map; |
---|
| 1926 | |
---|
| 1927 | typedef std::map<V, K> Container; |
---|
[220] | 1928 | Container _inv_map; |
---|
| 1929 | |
---|
| 1930 | public: |
---|
| 1931 | |
---|
[572] | 1932 | /// The graph type of CrossRefMap. |
---|
[559] | 1933 | typedef GR Graph; |
---|
[617] | 1934 | typedef GR Digraph; |
---|
[572] | 1935 | /// The key type of CrossRefMap (\c Node, \c Arc or \c Edge). |
---|
[559] | 1936 | typedef K Item; |
---|
[572] | 1937 | /// The key type of CrossRefMap (\c Node, \c Arc or \c Edge). |
---|
[559] | 1938 | typedef K Key; |
---|
[572] | 1939 | /// The value type of CrossRefMap. |
---|
[559] | 1940 | typedef V Value; |
---|
[220] | 1941 | |
---|
| 1942 | /// \brief Constructor. |
---|
| 1943 | /// |
---|
[572] | 1944 | /// Construct a new CrossRefMap for the given graph. |
---|
| 1945 | explicit CrossRefMap(const Graph& graph) : Map(graph) {} |
---|
[220] | 1946 | |
---|
| 1947 | /// \brief Forward iterator for values. |
---|
| 1948 | /// |
---|
| 1949 | /// This iterator is an stl compatible forward |
---|
| 1950 | /// iterator on the values of the map. The values can |
---|
[559] | 1951 | /// be accessed in the <tt>[beginValue, endValue)</tt> range. |
---|
[220] | 1952 | class ValueIterator |
---|
| 1953 | : public std::iterator<std::forward_iterator_tag, Value> { |
---|
[572] | 1954 | friend class CrossRefMap; |
---|
[220] | 1955 | private: |
---|
| 1956 | ValueIterator(typename Container::const_iterator _it) |
---|
| 1957 | : it(_it) {} |
---|
| 1958 | public: |
---|
| 1959 | |
---|
| 1960 | ValueIterator() {} |
---|
| 1961 | |
---|
| 1962 | ValueIterator& operator++() { ++it; return *this; } |
---|
| 1963 | ValueIterator operator++(int) { |
---|
| 1964 | ValueIterator tmp(*this); |
---|
| 1965 | operator++(); |
---|
| 1966 | return tmp; |
---|
| 1967 | } |
---|
| 1968 | |
---|
| 1969 | const Value& operator*() const { return it->first; } |
---|
| 1970 | const Value* operator->() const { return &(it->first); } |
---|
| 1971 | |
---|
| 1972 | bool operator==(ValueIterator jt) const { return it == jt.it; } |
---|
| 1973 | bool operator!=(ValueIterator jt) const { return it != jt.it; } |
---|
| 1974 | |
---|
| 1975 | private: |
---|
| 1976 | typename Container::const_iterator it; |
---|
| 1977 | }; |
---|
| 1978 | |
---|
| 1979 | /// \brief Returns an iterator to the first value. |
---|
| 1980 | /// |
---|
| 1981 | /// Returns an stl compatible iterator to the |
---|
| 1982 | /// first value of the map. The values of the |
---|
[559] | 1983 | /// map can be accessed in the <tt>[beginValue, endValue)</tt> |
---|
[220] | 1984 | /// range. |
---|
| 1985 | ValueIterator beginValue() const { |
---|
| 1986 | return ValueIterator(_inv_map.begin()); |
---|
| 1987 | } |
---|
| 1988 | |
---|
| 1989 | /// \brief Returns an iterator after the last value. |
---|
| 1990 | /// |
---|
| 1991 | /// Returns an stl compatible iterator after the |
---|
| 1992 | /// last value of the map. The values of the |
---|
[559] | 1993 | /// map can be accessed in the <tt>[beginValue, endValue)</tt> |
---|
[220] | 1994 | /// range. |
---|
| 1995 | ValueIterator endValue() const { |
---|
| 1996 | return ValueIterator(_inv_map.end()); |
---|
| 1997 | } |
---|
| 1998 | |
---|
[559] | 1999 | /// \brief Sets the value associated with the given key. |
---|
[220] | 2000 | /// |
---|
[559] | 2001 | /// Sets the value associated with the given key. |
---|
[220] | 2002 | void set(const Key& key, const Value& val) { |
---|
| 2003 | Value oldval = Map::operator[](key); |
---|
| 2004 | typename Container::iterator it = _inv_map.find(oldval); |
---|
| 2005 | if (it != _inv_map.end() && it->second == key) { |
---|
| 2006 | _inv_map.erase(it); |
---|
| 2007 | } |
---|
[693] | 2008 | _inv_map.insert(std::make_pair(val, key)); |
---|
[220] | 2009 | Map::set(key, val); |
---|
| 2010 | } |
---|
| 2011 | |
---|
[559] | 2012 | /// \brief Returns the value associated with the given key. |
---|
[220] | 2013 | /// |
---|
[559] | 2014 | /// Returns the value associated with the given key. |
---|
[220] | 2015 | typename MapTraits<Map>::ConstReturnValue |
---|
| 2016 | operator[](const Key& key) const { |
---|
| 2017 | return Map::operator[](key); |
---|
| 2018 | } |
---|
| 2019 | |
---|
| 2020 | /// \brief Gives back the item by its value. |
---|
| 2021 | /// |
---|
| 2022 | /// Gives back the item by its value. |
---|
| 2023 | Key operator()(const Value& key) const { |
---|
| 2024 | typename Container::const_iterator it = _inv_map.find(key); |
---|
| 2025 | return it != _inv_map.end() ? it->second : INVALID; |
---|
| 2026 | } |
---|
| 2027 | |
---|
| 2028 | protected: |
---|
| 2029 | |
---|
[559] | 2030 | /// \brief Erase the key from the map and the inverse map. |
---|
[220] | 2031 | /// |
---|
[559] | 2032 | /// Erase the key from the map and the inverse map. It is called by the |
---|
[220] | 2033 | /// \c AlterationNotifier. |
---|
| 2034 | virtual void erase(const Key& key) { |
---|
| 2035 | Value val = Map::operator[](key); |
---|
| 2036 | typename Container::iterator it = _inv_map.find(val); |
---|
| 2037 | if (it != _inv_map.end() && it->second == key) { |
---|
| 2038 | _inv_map.erase(it); |
---|
| 2039 | } |
---|
| 2040 | Map::erase(key); |
---|
| 2041 | } |
---|
| 2042 | |
---|
[559] | 2043 | /// \brief Erase more keys from the map and the inverse map. |
---|
[220] | 2044 | /// |
---|
[559] | 2045 | /// Erase more keys from the map and the inverse map. It is called by the |
---|
[220] | 2046 | /// \c AlterationNotifier. |
---|
| 2047 | virtual void erase(const std::vector<Key>& keys) { |
---|
| 2048 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
| 2049 | Value val = Map::operator[](keys[i]); |
---|
| 2050 | typename Container::iterator it = _inv_map.find(val); |
---|
| 2051 | if (it != _inv_map.end() && it->second == keys[i]) { |
---|
| 2052 | _inv_map.erase(it); |
---|
| 2053 | } |
---|
| 2054 | } |
---|
| 2055 | Map::erase(keys); |
---|
| 2056 | } |
---|
| 2057 | |
---|
[559] | 2058 | /// \brief Clear the keys from the map and the inverse map. |
---|
[220] | 2059 | /// |
---|
[559] | 2060 | /// Clear the keys from the map and the inverse map. It is called by the |
---|
[220] | 2061 | /// \c AlterationNotifier. |
---|
| 2062 | virtual void clear() { |
---|
| 2063 | _inv_map.clear(); |
---|
| 2064 | Map::clear(); |
---|
| 2065 | } |
---|
| 2066 | |
---|
| 2067 | public: |
---|
| 2068 | |
---|
| 2069 | /// \brief The inverse map type. |
---|
| 2070 | /// |
---|
| 2071 | /// The inverse of this map. The subscript operator of the map |
---|
[559] | 2072 | /// gives back the item that was last assigned to the value. |
---|
[220] | 2073 | class InverseMap { |
---|
| 2074 | public: |
---|
[559] | 2075 | /// \brief Constructor |
---|
[220] | 2076 | /// |
---|
| 2077 | /// Constructor of the InverseMap. |
---|
[572] | 2078 | explicit InverseMap(const CrossRefMap& inverted) |
---|
[220] | 2079 | : _inverted(inverted) {} |
---|
| 2080 | |
---|
| 2081 | /// The value type of the InverseMap. |
---|
[572] | 2082 | typedef typename CrossRefMap::Key Value; |
---|
[220] | 2083 | /// The key type of the InverseMap. |
---|
[572] | 2084 | typedef typename CrossRefMap::Value Key; |
---|
[220] | 2085 | |
---|
| 2086 | /// \brief Subscript operator. |
---|
| 2087 | /// |
---|
[559] | 2088 | /// Subscript operator. It gives back the item |
---|
| 2089 | /// that was last assigned to the given value. |
---|
[220] | 2090 | Value operator[](const Key& key) const { |
---|
| 2091 | return _inverted(key); |
---|
| 2092 | } |
---|
| 2093 | |
---|
| 2094 | private: |
---|
[572] | 2095 | const CrossRefMap& _inverted; |
---|
[220] | 2096 | }; |
---|
| 2097 | |
---|
[559] | 2098 | /// \brief It gives back the read-only inverse map. |
---|
[220] | 2099 | /// |
---|
[559] | 2100 | /// It gives back the read-only inverse map. |
---|
[220] | 2101 | InverseMap inverse() const { |
---|
| 2102 | return InverseMap(*this); |
---|
| 2103 | } |
---|
| 2104 | |
---|
| 2105 | }; |
---|
| 2106 | |
---|
[572] | 2107 | /// \brief Provides continuous and unique ID for the |
---|
| 2108 | /// items of a graph. |
---|
[220] | 2109 | /// |
---|
[572] | 2110 | /// RangeIdMap provides a unique and continuous |
---|
| 2111 | /// ID for each item of a given type (\c Node, \c Arc or |
---|
[559] | 2112 | /// \c Edge) in a graph. This id is |
---|
| 2113 | /// - \b unique: different items get different ids, |
---|
| 2114 | /// - \b continuous: the range of the ids is the set of integers |
---|
| 2115 | /// between 0 and \c n-1, where \c n is the number of the items of |
---|
[572] | 2116 | /// this type (\c Node, \c Arc or \c Edge). |
---|
| 2117 | /// - So, the ids can change when deleting an item of the same type. |
---|
[220] | 2118 | /// |
---|
[559] | 2119 | /// Thus this id is not (necessarily) the same as what can get using |
---|
| 2120 | /// the \c id() function of the graph or \ref IdMap. |
---|
| 2121 | /// This map can be inverted with its member class \c InverseMap, |
---|
| 2122 | /// or with the \c operator() member. |
---|
| 2123 | /// |
---|
| 2124 | /// \tparam GR The graph type. |
---|
| 2125 | /// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or |
---|
| 2126 | /// \c GR::Edge). |
---|
| 2127 | /// |
---|
| 2128 | /// \see IdMap |
---|
| 2129 | template <typename GR, typename K> |
---|
[572] | 2130 | class RangeIdMap |
---|
[559] | 2131 | : protected ItemSetTraits<GR, K>::template Map<int>::Type { |
---|
| 2132 | |
---|
| 2133 | typedef typename ItemSetTraits<GR, K>::template Map<int>::Type Map; |
---|
[220] | 2134 | |
---|
| 2135 | public: |
---|
[572] | 2136 | /// The graph type of RangeIdMap. |
---|
[559] | 2137 | typedef GR Graph; |
---|
[617] | 2138 | typedef GR Digraph; |
---|
[572] | 2139 | /// The key type of RangeIdMap (\c Node, \c Arc or \c Edge). |
---|
[559] | 2140 | typedef K Item; |
---|
[572] | 2141 | /// The key type of RangeIdMap (\c Node, \c Arc or \c Edge). |
---|
[559] | 2142 | typedef K Key; |
---|
[572] | 2143 | /// The value type of RangeIdMap. |
---|
[559] | 2144 | typedef int Value; |
---|
[220] | 2145 | |
---|
| 2146 | /// \brief Constructor. |
---|
| 2147 | /// |
---|
[572] | 2148 | /// Constructor. |
---|
| 2149 | explicit RangeIdMap(const Graph& gr) : Map(gr) { |
---|
[220] | 2150 | Item it; |
---|
| 2151 | const typename Map::Notifier* nf = Map::notifier(); |
---|
| 2152 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
| 2153 | Map::set(it, _inv_map.size()); |
---|
| 2154 | _inv_map.push_back(it); |
---|
| 2155 | } |
---|
| 2156 | } |
---|
| 2157 | |
---|
| 2158 | protected: |
---|
| 2159 | |
---|
[559] | 2160 | /// \brief Adds a new key to the map. |
---|
[220] | 2161 | /// |
---|
| 2162 | /// Add a new key to the map. It is called by the |
---|
| 2163 | /// \c AlterationNotifier. |
---|
| 2164 | virtual void add(const Item& item) { |
---|
| 2165 | Map::add(item); |
---|
| 2166 | Map::set(item, _inv_map.size()); |
---|
| 2167 | _inv_map.push_back(item); |
---|
| 2168 | } |
---|
| 2169 | |
---|
| 2170 | /// \brief Add more new keys to the map. |
---|
| 2171 | /// |
---|
| 2172 | /// Add more new keys to the map. It is called by the |
---|
| 2173 | /// \c AlterationNotifier. |
---|
| 2174 | virtual void add(const std::vector<Item>& items) { |
---|
| 2175 | Map::add(items); |
---|
| 2176 | for (int i = 0; i < int(items.size()); ++i) { |
---|
| 2177 | Map::set(items[i], _inv_map.size()); |
---|
| 2178 | _inv_map.push_back(items[i]); |
---|
| 2179 | } |
---|
| 2180 | } |
---|
| 2181 | |
---|
| 2182 | /// \brief Erase the key from the map. |
---|
| 2183 | /// |
---|
| 2184 | /// Erase the key from the map. It is called by the |
---|
| 2185 | /// \c AlterationNotifier. |
---|
| 2186 | virtual void erase(const Item& item) { |
---|
| 2187 | Map::set(_inv_map.back(), Map::operator[](item)); |
---|
| 2188 | _inv_map[Map::operator[](item)] = _inv_map.back(); |
---|
| 2189 | _inv_map.pop_back(); |
---|
| 2190 | Map::erase(item); |
---|
| 2191 | } |
---|
| 2192 | |
---|
| 2193 | /// \brief Erase more keys from the map. |
---|
| 2194 | /// |
---|
| 2195 | /// Erase more keys from the map. It is called by the |
---|
| 2196 | /// \c AlterationNotifier. |
---|
| 2197 | virtual void erase(const std::vector<Item>& items) { |
---|
| 2198 | for (int i = 0; i < int(items.size()); ++i) { |
---|
| 2199 | Map::set(_inv_map.back(), Map::operator[](items[i])); |
---|
| 2200 | _inv_map[Map::operator[](items[i])] = _inv_map.back(); |
---|
| 2201 | _inv_map.pop_back(); |
---|
| 2202 | } |
---|
| 2203 | Map::erase(items); |
---|
| 2204 | } |
---|
| 2205 | |
---|
| 2206 | /// \brief Build the unique map. |
---|
| 2207 | /// |
---|
| 2208 | /// Build the unique map. It is called by the |
---|
| 2209 | /// \c AlterationNotifier. |
---|
| 2210 | virtual void build() { |
---|
| 2211 | Map::build(); |
---|
| 2212 | Item it; |
---|
| 2213 | const typename Map::Notifier* nf = Map::notifier(); |
---|
| 2214 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
| 2215 | Map::set(it, _inv_map.size()); |
---|
| 2216 | _inv_map.push_back(it); |
---|
| 2217 | } |
---|
| 2218 | } |
---|
| 2219 | |
---|
| 2220 | /// \brief Clear the keys from the map. |
---|
| 2221 | /// |
---|
| 2222 | /// Clear the keys from the map. It is called by the |
---|
| 2223 | /// \c AlterationNotifier. |
---|
| 2224 | virtual void clear() { |
---|
| 2225 | _inv_map.clear(); |
---|
| 2226 | Map::clear(); |
---|
| 2227 | } |
---|
| 2228 | |
---|
| 2229 | public: |
---|
| 2230 | |
---|
| 2231 | /// \brief Returns the maximal value plus one. |
---|
| 2232 | /// |
---|
| 2233 | /// Returns the maximal value plus one in the map. |
---|
| 2234 | unsigned int size() const { |
---|
| 2235 | return _inv_map.size(); |
---|
| 2236 | } |
---|
| 2237 | |
---|
| 2238 | /// \brief Swaps the position of the two items in the map. |
---|
| 2239 | /// |
---|
| 2240 | /// Swaps the position of the two items in the map. |
---|
| 2241 | void swap(const Item& p, const Item& q) { |
---|
| 2242 | int pi = Map::operator[](p); |
---|
| 2243 | int qi = Map::operator[](q); |
---|
| 2244 | Map::set(p, qi); |
---|
| 2245 | _inv_map[qi] = p; |
---|
| 2246 | Map::set(q, pi); |
---|
| 2247 | _inv_map[pi] = q; |
---|
| 2248 | } |
---|
| 2249 | |
---|
[572] | 2250 | /// \brief Gives back the \e RangeId of the item |
---|
[220] | 2251 | /// |
---|
[572] | 2252 | /// Gives back the \e RangeId of the item. |
---|
[220] | 2253 | int operator[](const Item& item) const { |
---|
| 2254 | return Map::operator[](item); |
---|
| 2255 | } |
---|
| 2256 | |
---|
[572] | 2257 | /// \brief Gives back the item belonging to a \e RangeId |
---|
[693] | 2258 | /// |
---|
[572] | 2259 | /// Gives back the item belonging to a \e RangeId. |
---|
[220] | 2260 | Item operator()(int id) const { |
---|
| 2261 | return _inv_map[id]; |
---|
| 2262 | } |
---|
| 2263 | |
---|
| 2264 | private: |
---|
| 2265 | |
---|
| 2266 | typedef std::vector<Item> Container; |
---|
| 2267 | Container _inv_map; |
---|
| 2268 | |
---|
| 2269 | public: |
---|
[559] | 2270 | |
---|
[572] | 2271 | /// \brief The inverse map type of RangeIdMap. |
---|
[220] | 2272 | /// |
---|
[572] | 2273 | /// The inverse map type of RangeIdMap. |
---|
[220] | 2274 | class InverseMap { |
---|
| 2275 | public: |
---|
[559] | 2276 | /// \brief Constructor |
---|
[220] | 2277 | /// |
---|
| 2278 | /// Constructor of the InverseMap. |
---|
[572] | 2279 | explicit InverseMap(const RangeIdMap& inverted) |
---|
[220] | 2280 | : _inverted(inverted) {} |
---|
| 2281 | |
---|
| 2282 | |
---|
| 2283 | /// The value type of the InverseMap. |
---|
[572] | 2284 | typedef typename RangeIdMap::Key Value; |
---|
[220] | 2285 | /// The key type of the InverseMap. |
---|
[572] | 2286 | typedef typename RangeIdMap::Value Key; |
---|
[220] | 2287 | |
---|
| 2288 | /// \brief Subscript operator. |
---|
| 2289 | /// |
---|
| 2290 | /// Subscript operator. It gives back the item |
---|
[559] | 2291 | /// that the descriptor currently belongs to. |
---|
[220] | 2292 | Value operator[](const Key& key) const { |
---|
| 2293 | return _inverted(key); |
---|
| 2294 | } |
---|
| 2295 | |
---|
| 2296 | /// \brief Size of the map. |
---|
| 2297 | /// |
---|
| 2298 | /// Returns the size of the map. |
---|
| 2299 | unsigned int size() const { |
---|
| 2300 | return _inverted.size(); |
---|
| 2301 | } |
---|
| 2302 | |
---|
| 2303 | private: |
---|
[572] | 2304 | const RangeIdMap& _inverted; |
---|
[220] | 2305 | }; |
---|
| 2306 | |
---|
| 2307 | /// \brief Gives back the inverse of the map. |
---|
| 2308 | /// |
---|
| 2309 | /// Gives back the inverse of the map. |
---|
| 2310 | const InverseMap inverse() const { |
---|
| 2311 | return InverseMap(*this); |
---|
| 2312 | } |
---|
| 2313 | }; |
---|
| 2314 | |
---|
[693] | 2315 | /// \brief Dynamic iterable bool map. |
---|
| 2316 | /// |
---|
| 2317 | /// This class provides a special graph map type which can store for |
---|
| 2318 | /// each graph item(node, arc, edge, etc.) a bool value. For both |
---|
| 2319 | /// the true and the false values it is possible to iterate on the |
---|
| 2320 | /// keys. |
---|
| 2321 | /// |
---|
| 2322 | /// \param GR The graph type. |
---|
| 2323 | /// \param ITEM One of the graph's item types, the key of the map. |
---|
| 2324 | template <typename GR, typename ITEM> |
---|
| 2325 | class IterableBoolMap |
---|
| 2326 | : protected ItemSetTraits<GR, ITEM>::template Map<int>::Type { |
---|
| 2327 | private: |
---|
| 2328 | typedef GR Graph; |
---|
| 2329 | |
---|
| 2330 | typedef typename ItemSetTraits<Graph, ITEM>::ItemIt KeyIt; |
---|
| 2331 | typedef typename ItemSetTraits<GR, ITEM>::template Map<int>::Type Parent; |
---|
| 2332 | |
---|
| 2333 | std::vector<ITEM> _array; |
---|
| 2334 | int _sep; |
---|
| 2335 | |
---|
| 2336 | public: |
---|
| 2337 | |
---|
| 2338 | /// Indicates that the map if reference map. |
---|
| 2339 | typedef True ReferenceMapTag; |
---|
| 2340 | |
---|
| 2341 | /// The key type |
---|
| 2342 | typedef ITEM Key; |
---|
| 2343 | /// The value type |
---|
| 2344 | typedef bool Value; |
---|
| 2345 | /// The const reference type. |
---|
| 2346 | typedef const Value& ConstReference; |
---|
| 2347 | |
---|
| 2348 | private: |
---|
| 2349 | |
---|
| 2350 | int position(const Key& key) const { |
---|
| 2351 | return Parent::operator[](key); |
---|
| 2352 | } |
---|
| 2353 | |
---|
| 2354 | public: |
---|
| 2355 | |
---|
| 2356 | /// \brief Refernce to the value of the map. |
---|
| 2357 | /// |
---|
| 2358 | /// This class is similar to the bool type. It can be converted to |
---|
| 2359 | /// bool and it provides the same operators. |
---|
| 2360 | class Reference { |
---|
| 2361 | friend class IterableBoolMap; |
---|
| 2362 | private: |
---|
| 2363 | Reference(IterableBoolMap& map, const Key& key) |
---|
| 2364 | : _key(key), _map(map) {} |
---|
| 2365 | public: |
---|
| 2366 | |
---|
| 2367 | Reference& operator=(const Reference& value) { |
---|
| 2368 | _map.set(_key, static_cast<bool>(value)); |
---|
| 2369 | return *this; |
---|
| 2370 | } |
---|
| 2371 | |
---|
| 2372 | operator bool() const { |
---|
| 2373 | return static_cast<const IterableBoolMap&>(_map)[_key]; |
---|
| 2374 | } |
---|
| 2375 | |
---|
| 2376 | Reference& operator=(bool value) { |
---|
| 2377 | _map.set(_key, value); |
---|
| 2378 | return *this; |
---|
| 2379 | } |
---|
| 2380 | Reference& operator&=(bool value) { |
---|
| 2381 | _map.set(_key, _map[_key] & value); |
---|
| 2382 | return *this; |
---|
| 2383 | } |
---|
| 2384 | Reference& operator|=(bool value) { |
---|
| 2385 | _map.set(_key, _map[_key] | value); |
---|
| 2386 | return *this; |
---|
| 2387 | } |
---|
| 2388 | Reference& operator^=(bool value) { |
---|
| 2389 | _map.set(_key, _map[_key] ^ value); |
---|
| 2390 | return *this; |
---|
| 2391 | } |
---|
| 2392 | private: |
---|
| 2393 | Key _key; |
---|
| 2394 | IterableBoolMap& _map; |
---|
| 2395 | }; |
---|
| 2396 | |
---|
| 2397 | /// \brief Constructor of the map with a default value. |
---|
| 2398 | /// |
---|
| 2399 | /// Constructor of the map with a default value. |
---|
| 2400 | explicit IterableBoolMap(const Graph& graph, bool def = false) |
---|
| 2401 | : Parent(graph) { |
---|
| 2402 | typename Parent::Notifier* nf = Parent::notifier(); |
---|
| 2403 | Key it; |
---|
| 2404 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
| 2405 | Parent::set(it, _array.size()); |
---|
| 2406 | _array.push_back(it); |
---|
| 2407 | } |
---|
| 2408 | _sep = (def ? _array.size() : 0); |
---|
| 2409 | } |
---|
| 2410 | |
---|
| 2411 | /// \brief Const subscript operator of the map. |
---|
| 2412 | /// |
---|
| 2413 | /// Const subscript operator of the map. |
---|
| 2414 | bool operator[](const Key& key) const { |
---|
| 2415 | return position(key) < _sep; |
---|
| 2416 | } |
---|
| 2417 | |
---|
| 2418 | /// \brief Subscript operator of the map. |
---|
| 2419 | /// |
---|
| 2420 | /// Subscript operator of the map. |
---|
| 2421 | Reference operator[](const Key& key) { |
---|
| 2422 | return Reference(*this, key); |
---|
| 2423 | } |
---|
| 2424 | |
---|
| 2425 | /// \brief Set operation of the map. |
---|
| 2426 | /// |
---|
| 2427 | /// Set operation of the map. |
---|
| 2428 | void set(const Key& key, bool value) { |
---|
| 2429 | int pos = position(key); |
---|
| 2430 | if (value) { |
---|
| 2431 | if (pos < _sep) return; |
---|
| 2432 | Key tmp = _array[_sep]; |
---|
| 2433 | _array[_sep] = key; |
---|
| 2434 | Parent::set(key, _sep); |
---|
| 2435 | _array[pos] = tmp; |
---|
| 2436 | Parent::set(tmp, pos); |
---|
| 2437 | ++_sep; |
---|
| 2438 | } else { |
---|
| 2439 | if (pos >= _sep) return; |
---|
| 2440 | --_sep; |
---|
| 2441 | Key tmp = _array[_sep]; |
---|
| 2442 | _array[_sep] = key; |
---|
| 2443 | Parent::set(key, _sep); |
---|
| 2444 | _array[pos] = tmp; |
---|
| 2445 | Parent::set(tmp, pos); |
---|
| 2446 | } |
---|
| 2447 | } |
---|
| 2448 | |
---|
| 2449 | /// \brief Set all items. |
---|
| 2450 | /// |
---|
| 2451 | /// Set all items in the map. |
---|
| 2452 | /// \note Constant time operation. |
---|
| 2453 | void setAll(bool value) { |
---|
| 2454 | _sep = (value ? _array.size() : 0); |
---|
| 2455 | } |
---|
| 2456 | |
---|
| 2457 | /// \brief Returns the number of the keys mapped to true. |
---|
| 2458 | /// |
---|
| 2459 | /// Returns the number of the keys mapped to true. |
---|
| 2460 | int trueNum() const { |
---|
| 2461 | return _sep; |
---|
| 2462 | } |
---|
| 2463 | |
---|
| 2464 | /// \brief Returns the number of the keys mapped to false. |
---|
| 2465 | /// |
---|
| 2466 | /// Returns the number of the keys mapped to false. |
---|
| 2467 | int falseNum() const { |
---|
| 2468 | return _array.size() - _sep; |
---|
| 2469 | } |
---|
| 2470 | |
---|
| 2471 | /// \brief Iterator for the keys mapped to true. |
---|
| 2472 | /// |
---|
| 2473 | /// Iterator for the keys mapped to true. It works |
---|
| 2474 | /// like a graph item iterator in the map, it can be converted |
---|
| 2475 | /// the key type of the map, incremented with \c ++ operator, and |
---|
| 2476 | /// if the iterator leave the last valid key it will be equal to |
---|
| 2477 | /// \c INVALID. |
---|
| 2478 | class TrueIt : public Key { |
---|
| 2479 | public: |
---|
| 2480 | typedef Key Parent; |
---|
| 2481 | |
---|
| 2482 | /// \brief Creates an iterator. |
---|
| 2483 | /// |
---|
| 2484 | /// Creates an iterator. It iterates on the |
---|
| 2485 | /// keys which mapped to true. |
---|
| 2486 | /// \param map The IterableIntMap |
---|
| 2487 | explicit TrueIt(const IterableBoolMap& map) |
---|
| 2488 | : Parent(map._sep > 0 ? map._array[map._sep - 1] : INVALID), |
---|
| 2489 | _map(&map) {} |
---|
| 2490 | |
---|
| 2491 | /// \brief Invalid constructor \& conversion. |
---|
| 2492 | /// |
---|
| 2493 | /// This constructor initializes the key to be invalid. |
---|
| 2494 | /// \sa Invalid for more details. |
---|
| 2495 | TrueIt(Invalid) : Parent(INVALID), _map(0) {} |
---|
| 2496 | |
---|
| 2497 | /// \brief Increment operator. |
---|
| 2498 | /// |
---|
| 2499 | /// Increment Operator. |
---|
| 2500 | TrueIt& operator++() { |
---|
| 2501 | int pos = _map->position(*this); |
---|
| 2502 | Parent::operator=(pos > 0 ? _map->_array[pos - 1] : INVALID); |
---|
| 2503 | return *this; |
---|
| 2504 | } |
---|
| 2505 | |
---|
| 2506 | |
---|
| 2507 | private: |
---|
| 2508 | const IterableBoolMap* _map; |
---|
| 2509 | }; |
---|
| 2510 | |
---|
| 2511 | /// \brief Iterator for the keys mapped to false. |
---|
| 2512 | /// |
---|
| 2513 | /// Iterator for the keys mapped to false. It works |
---|
| 2514 | /// like a graph item iterator in the map, it can be converted |
---|
| 2515 | /// the key type of the map, incremented with \c ++ operator, and |
---|
| 2516 | /// if the iterator leave the last valid key it will be equal to |
---|
| 2517 | /// \c INVALID. |
---|
| 2518 | class FalseIt : public Key { |
---|
| 2519 | public: |
---|
| 2520 | typedef Key Parent; |
---|
| 2521 | |
---|
| 2522 | /// \brief Creates an iterator. |
---|
| 2523 | /// |
---|
| 2524 | /// Creates an iterator. It iterates on the |
---|
| 2525 | /// keys which mapped to false. |
---|
| 2526 | /// \param map The IterableIntMap |
---|
| 2527 | explicit FalseIt(const IterableBoolMap& map) |
---|
| 2528 | : Parent(map._sep < int(map._array.size()) ? |
---|
| 2529 | map._array.back() : INVALID), _map(&map) {} |
---|
| 2530 | |
---|
| 2531 | /// \brief Invalid constructor \& conversion. |
---|
| 2532 | /// |
---|
| 2533 | /// This constructor initializes the key to be invalid. |
---|
| 2534 | /// \sa Invalid for more details. |
---|
| 2535 | FalseIt(Invalid) : Parent(INVALID), _map(0) {} |
---|
| 2536 | |
---|
| 2537 | /// \brief Increment operator. |
---|
| 2538 | /// |
---|
| 2539 | /// Increment Operator. |
---|
| 2540 | FalseIt& operator++() { |
---|
| 2541 | int pos = _map->position(*this); |
---|
| 2542 | Parent::operator=(pos > _map->_sep ? _map->_array[pos - 1] : INVALID); |
---|
| 2543 | return *this; |
---|
| 2544 | } |
---|
| 2545 | |
---|
| 2546 | private: |
---|
| 2547 | const IterableBoolMap* _map; |
---|
| 2548 | }; |
---|
| 2549 | |
---|
| 2550 | /// \brief Iterator for the keys mapped to a given value. |
---|
| 2551 | /// |
---|
| 2552 | /// Iterator for the keys mapped to a given value. It works |
---|
| 2553 | /// like a graph item iterator in the map, it can be converted |
---|
| 2554 | /// the key type of the map, incremented with \c ++ operator, and |
---|
| 2555 | /// if the iterator leave the last valid key it will be equal to |
---|
| 2556 | /// \c INVALID. |
---|
| 2557 | class ItemIt : public Key { |
---|
| 2558 | public: |
---|
| 2559 | typedef Key Parent; |
---|
| 2560 | |
---|
| 2561 | /// \brief Creates an iterator. |
---|
| 2562 | /// |
---|
| 2563 | /// Creates an iterator. It iterates on the |
---|
| 2564 | /// keys which mapped to false. |
---|
| 2565 | /// \param map The IterableIntMap |
---|
| 2566 | /// \param value Which elements should be iterated. |
---|
| 2567 | ItemIt(const IterableBoolMap& map, bool value) |
---|
| 2568 | : Parent(value ? |
---|
| 2569 | (map._sep > 0 ? |
---|
| 2570 | map._array[map._sep - 1] : INVALID) : |
---|
| 2571 | (map._sep < int(map._array.size()) ? |
---|
| 2572 | map._array.back() : INVALID)), _map(&map) {} |
---|
| 2573 | |
---|
| 2574 | /// \brief Invalid constructor \& conversion. |
---|
| 2575 | /// |
---|
| 2576 | /// This constructor initializes the key to be invalid. |
---|
| 2577 | /// \sa Invalid for more details. |
---|
| 2578 | ItemIt(Invalid) : Parent(INVALID), _map(0) {} |
---|
| 2579 | |
---|
| 2580 | /// \brief Increment operator. |
---|
| 2581 | /// |
---|
| 2582 | /// Increment Operator. |
---|
| 2583 | ItemIt& operator++() { |
---|
| 2584 | int pos = _map->position(*this); |
---|
| 2585 | int _sep = pos >= _map->_sep ? _map->_sep : 0; |
---|
| 2586 | Parent::operator=(pos > _sep ? _map->_array[pos - 1] : INVALID); |
---|
| 2587 | return *this; |
---|
| 2588 | } |
---|
| 2589 | |
---|
| 2590 | private: |
---|
| 2591 | const IterableBoolMap* _map; |
---|
| 2592 | }; |
---|
| 2593 | |
---|
| 2594 | protected: |
---|
| 2595 | |
---|
| 2596 | virtual void add(const Key& key) { |
---|
| 2597 | Parent::add(key); |
---|
| 2598 | Parent::set(key, _array.size()); |
---|
| 2599 | _array.push_back(key); |
---|
| 2600 | } |
---|
| 2601 | |
---|
| 2602 | virtual void add(const std::vector<Key>& keys) { |
---|
| 2603 | Parent::add(keys); |
---|
| 2604 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
| 2605 | Parent::set(keys[i], _array.size()); |
---|
| 2606 | _array.push_back(keys[i]); |
---|
| 2607 | } |
---|
| 2608 | } |
---|
| 2609 | |
---|
| 2610 | virtual void erase(const Key& key) { |
---|
| 2611 | int pos = position(key); |
---|
| 2612 | if (pos < _sep) { |
---|
| 2613 | --_sep; |
---|
| 2614 | Parent::set(_array[_sep], pos); |
---|
| 2615 | _array[pos] = _array[_sep]; |
---|
| 2616 | Parent::set(_array.back(), _sep); |
---|
| 2617 | _array[_sep] = _array.back(); |
---|
| 2618 | _array.pop_back(); |
---|
| 2619 | } else { |
---|
| 2620 | Parent::set(_array.back(), pos); |
---|
| 2621 | _array[pos] = _array.back(); |
---|
| 2622 | _array.pop_back(); |
---|
| 2623 | } |
---|
| 2624 | Parent::erase(key); |
---|
| 2625 | } |
---|
| 2626 | |
---|
| 2627 | virtual void erase(const std::vector<Key>& keys) { |
---|
| 2628 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
| 2629 | int pos = position(keys[i]); |
---|
| 2630 | if (pos < _sep) { |
---|
| 2631 | --_sep; |
---|
| 2632 | Parent::set(_array[_sep], pos); |
---|
| 2633 | _array[pos] = _array[_sep]; |
---|
| 2634 | Parent::set(_array.back(), _sep); |
---|
| 2635 | _array[_sep] = _array.back(); |
---|
| 2636 | _array.pop_back(); |
---|
| 2637 | } else { |
---|
| 2638 | Parent::set(_array.back(), pos); |
---|
| 2639 | _array[pos] = _array.back(); |
---|
| 2640 | _array.pop_back(); |
---|
| 2641 | } |
---|
| 2642 | } |
---|
| 2643 | Parent::erase(keys); |
---|
| 2644 | } |
---|
| 2645 | |
---|
| 2646 | virtual void build() { |
---|
| 2647 | Parent::build(); |
---|
| 2648 | typename Parent::Notifier* nf = Parent::notifier(); |
---|
| 2649 | Key it; |
---|
| 2650 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
| 2651 | Parent::set(it, _array.size()); |
---|
| 2652 | _array.push_back(it); |
---|
| 2653 | } |
---|
| 2654 | _sep = 0; |
---|
| 2655 | } |
---|
| 2656 | |
---|
| 2657 | virtual void clear() { |
---|
| 2658 | _array.clear(); |
---|
| 2659 | _sep = 0; |
---|
| 2660 | Parent::clear(); |
---|
| 2661 | } |
---|
| 2662 | |
---|
| 2663 | }; |
---|
| 2664 | |
---|
| 2665 | |
---|
| 2666 | namespace _maps_bits { |
---|
| 2667 | template <typename Item> |
---|
| 2668 | struct IterableIntMapNode { |
---|
| 2669 | IterableIntMapNode() : value(-1) {} |
---|
| 2670 | IterableIntMapNode(int _value) : value(_value) {} |
---|
| 2671 | Item prev, next; |
---|
| 2672 | int value; |
---|
| 2673 | }; |
---|
| 2674 | } |
---|
| 2675 | |
---|
| 2676 | ///\ingroup graph_maps |
---|
| 2677 | /// |
---|
| 2678 | /// \brief Dynamic iterable integer map. |
---|
| 2679 | /// |
---|
| 2680 | /// This class provides a special graph map type which can store |
---|
| 2681 | /// for each graph item(node, edge, etc.) an integer value. For each |
---|
| 2682 | /// non negative value it is possible to iterate on the keys which |
---|
| 2683 | /// mapped to the given value. |
---|
| 2684 | /// |
---|
| 2685 | /// \note The size of the data structure depends on the highest |
---|
| 2686 | /// value in the map. |
---|
| 2687 | /// |
---|
| 2688 | /// \param GR The graph type. |
---|
| 2689 | /// \param ITEM One of the graph's item type, the key of the map. |
---|
| 2690 | template <typename GR, typename ITEM> |
---|
| 2691 | class IterableIntMap |
---|
| 2692 | : protected ItemSetTraits<GR, ITEM>:: |
---|
| 2693 | template Map<_maps_bits::IterableIntMapNode<ITEM> >::Type { |
---|
| 2694 | public: |
---|
| 2695 | typedef typename ItemSetTraits<GR, ITEM>:: |
---|
| 2696 | template Map<_maps_bits::IterableIntMapNode<ITEM> >::Type Parent; |
---|
| 2697 | |
---|
| 2698 | /// The key type |
---|
| 2699 | typedef ITEM Key; |
---|
| 2700 | /// The value type |
---|
| 2701 | typedef int Value; |
---|
| 2702 | /// The graph type |
---|
| 2703 | typedef GR Graph; |
---|
| 2704 | |
---|
| 2705 | /// \brief Constructor of the map. |
---|
| 2706 | /// |
---|
| 2707 | /// Constructor of the map. It set all values to -1. |
---|
| 2708 | explicit IterableIntMap(const Graph& graph) |
---|
| 2709 | : Parent(graph) {} |
---|
| 2710 | |
---|
| 2711 | /// \brief Constructor of the map with a given value. |
---|
| 2712 | /// |
---|
| 2713 | /// Constructor of the map with a given value. |
---|
| 2714 | explicit IterableIntMap(const Graph& graph, int value) |
---|
| 2715 | : Parent(graph, _maps_bits::IterableIntMapNode<ITEM>(value)) { |
---|
| 2716 | if (value >= 0) { |
---|
| 2717 | for (typename Parent::ItemIt it(*this); it != INVALID; ++it) { |
---|
| 2718 | lace(it); |
---|
| 2719 | } |
---|
| 2720 | } |
---|
| 2721 | } |
---|
| 2722 | |
---|
| 2723 | private: |
---|
| 2724 | |
---|
| 2725 | void unlace(const Key& key) { |
---|
| 2726 | typename Parent::Value& node = Parent::operator[](key); |
---|
| 2727 | if (node.value < 0) return; |
---|
| 2728 | if (node.prev != INVALID) { |
---|
| 2729 | Parent::operator[](node.prev).next = node.next; |
---|
| 2730 | } else { |
---|
| 2731 | _first[node.value] = node.next; |
---|
| 2732 | } |
---|
| 2733 | if (node.next != INVALID) { |
---|
| 2734 | Parent::operator[](node.next).prev = node.prev; |
---|
| 2735 | } |
---|
| 2736 | while (!_first.empty() && _first.back() == INVALID) { |
---|
| 2737 | _first.pop_back(); |
---|
| 2738 | } |
---|
| 2739 | } |
---|
| 2740 | |
---|
| 2741 | void lace(const Key& key) { |
---|
| 2742 | typename Parent::Value& node = Parent::operator[](key); |
---|
| 2743 | if (node.value < 0) return; |
---|
| 2744 | if (node.value >= int(_first.size())) { |
---|
| 2745 | _first.resize(node.value + 1, INVALID); |
---|
| 2746 | } |
---|
| 2747 | node.prev = INVALID; |
---|
| 2748 | node.next = _first[node.value]; |
---|
| 2749 | if (node.next != INVALID) { |
---|
| 2750 | Parent::operator[](node.next).prev = key; |
---|
| 2751 | } |
---|
| 2752 | _first[node.value] = key; |
---|
| 2753 | } |
---|
| 2754 | |
---|
| 2755 | public: |
---|
| 2756 | |
---|
| 2757 | /// Indicates that the map if reference map. |
---|
| 2758 | typedef True ReferenceMapTag; |
---|
| 2759 | |
---|
| 2760 | /// \brief Refernce to the value of the map. |
---|
| 2761 | /// |
---|
| 2762 | /// This class is similar to the int type. It can |
---|
| 2763 | /// be converted to int and it has the same operators. |
---|
| 2764 | class Reference { |
---|
| 2765 | friend class IterableIntMap; |
---|
| 2766 | private: |
---|
| 2767 | Reference(IterableIntMap& map, const Key& key) |
---|
| 2768 | : _key(key), _map(map) {} |
---|
| 2769 | public: |
---|
| 2770 | |
---|
| 2771 | Reference& operator=(const Reference& value) { |
---|
| 2772 | _map.set(_key, static_cast<const int&>(value)); |
---|
| 2773 | return *this; |
---|
| 2774 | } |
---|
| 2775 | |
---|
| 2776 | operator const int&() const { |
---|
| 2777 | return static_cast<const IterableIntMap&>(_map)[_key]; |
---|
| 2778 | } |
---|
| 2779 | |
---|
| 2780 | Reference& operator=(int value) { |
---|
| 2781 | _map.set(_key, value); |
---|
| 2782 | return *this; |
---|
| 2783 | } |
---|
| 2784 | Reference& operator++() { |
---|
| 2785 | _map.set(_key, _map[_key] + 1); |
---|
| 2786 | return *this; |
---|
| 2787 | } |
---|
| 2788 | int operator++(int) { |
---|
| 2789 | int value = _map[_key]; |
---|
| 2790 | _map.set(_key, value + 1); |
---|
| 2791 | return value; |
---|
| 2792 | } |
---|
| 2793 | Reference& operator--() { |
---|
| 2794 | _map.set(_key, _map[_key] - 1); |
---|
| 2795 | return *this; |
---|
| 2796 | } |
---|
| 2797 | int operator--(int) { |
---|
| 2798 | int value = _map[_key]; |
---|
| 2799 | _map.set(_key, value - 1); |
---|
| 2800 | return value; |
---|
| 2801 | } |
---|
| 2802 | Reference& operator+=(int value) { |
---|
| 2803 | _map.set(_key, _map[_key] + value); |
---|
| 2804 | return *this; |
---|
| 2805 | } |
---|
| 2806 | Reference& operator-=(int value) { |
---|
| 2807 | _map.set(_key, _map[_key] - value); |
---|
| 2808 | return *this; |
---|
| 2809 | } |
---|
| 2810 | Reference& operator*=(int value) { |
---|
| 2811 | _map.set(_key, _map[_key] * value); |
---|
| 2812 | return *this; |
---|
| 2813 | } |
---|
| 2814 | Reference& operator/=(int value) { |
---|
| 2815 | _map.set(_key, _map[_key] / value); |
---|
| 2816 | return *this; |
---|
| 2817 | } |
---|
| 2818 | Reference& operator%=(int value) { |
---|
| 2819 | _map.set(_key, _map[_key] % value); |
---|
| 2820 | return *this; |
---|
| 2821 | } |
---|
| 2822 | Reference& operator&=(int value) { |
---|
| 2823 | _map.set(_key, _map[_key] & value); |
---|
| 2824 | return *this; |
---|
| 2825 | } |
---|
| 2826 | Reference& operator|=(int value) { |
---|
| 2827 | _map.set(_key, _map[_key] | value); |
---|
| 2828 | return *this; |
---|
| 2829 | } |
---|
| 2830 | Reference& operator^=(int value) { |
---|
| 2831 | _map.set(_key, _map[_key] ^ value); |
---|
| 2832 | return *this; |
---|
| 2833 | } |
---|
| 2834 | Reference& operator<<=(int value) { |
---|
| 2835 | _map.set(_key, _map[_key] << value); |
---|
| 2836 | return *this; |
---|
| 2837 | } |
---|
| 2838 | Reference& operator>>=(int value) { |
---|
| 2839 | _map.set(_key, _map[_key] >> value); |
---|
| 2840 | return *this; |
---|
| 2841 | } |
---|
| 2842 | |
---|
| 2843 | private: |
---|
| 2844 | Key _key; |
---|
| 2845 | IterableIntMap& _map; |
---|
| 2846 | }; |
---|
| 2847 | |
---|
| 2848 | /// The const reference type. |
---|
| 2849 | typedef const Value& ConstReference; |
---|
| 2850 | |
---|
| 2851 | /// \brief Gives back the maximal value plus one. |
---|
| 2852 | /// |
---|
| 2853 | /// Gives back the maximal value plus one. |
---|
| 2854 | int size() const { |
---|
| 2855 | return _first.size(); |
---|
| 2856 | } |
---|
| 2857 | |
---|
| 2858 | /// \brief Set operation of the map. |
---|
| 2859 | /// |
---|
| 2860 | /// Set operation of the map. |
---|
| 2861 | void set(const Key& key, const Value& value) { |
---|
| 2862 | unlace(key); |
---|
| 2863 | Parent::operator[](key).value = value; |
---|
| 2864 | lace(key); |
---|
| 2865 | } |
---|
| 2866 | |
---|
| 2867 | /// \brief Const subscript operator of the map. |
---|
| 2868 | /// |
---|
| 2869 | /// Const subscript operator of the map. |
---|
| 2870 | const Value& operator[](const Key& key) const { |
---|
| 2871 | return Parent::operator[](key).value; |
---|
| 2872 | } |
---|
| 2873 | |
---|
| 2874 | /// \brief Subscript operator of the map. |
---|
| 2875 | /// |
---|
| 2876 | /// Subscript operator of the map. |
---|
| 2877 | Reference operator[](const Key& key) { |
---|
| 2878 | return Reference(*this, key); |
---|
| 2879 | } |
---|
| 2880 | |
---|
| 2881 | /// \brief Iterator for the keys with the same value. |
---|
| 2882 | /// |
---|
| 2883 | /// Iterator for the keys with the same value. It works |
---|
| 2884 | /// like a graph item iterator in the map, it can be converted |
---|
| 2885 | /// the item type of the map, incremented with \c ++ operator, and |
---|
| 2886 | /// if the iterator leave the last valid item it will be equal to |
---|
| 2887 | /// \c INVALID. |
---|
| 2888 | class ItemIt : public ITEM { |
---|
| 2889 | public: |
---|
| 2890 | typedef ITEM Parent; |
---|
| 2891 | |
---|
| 2892 | /// \brief Invalid constructor \& conversion. |
---|
| 2893 | /// |
---|
| 2894 | /// This constructor initializes the item to be invalid. |
---|
| 2895 | /// \sa Invalid for more details. |
---|
| 2896 | ItemIt(Invalid) : Parent(INVALID), _map(0) {} |
---|
| 2897 | |
---|
| 2898 | /// \brief Creates an iterator with a value. |
---|
| 2899 | /// |
---|
| 2900 | /// Creates an iterator with a value. It iterates on the |
---|
| 2901 | /// keys which have the given value. |
---|
| 2902 | /// \param map The IterableIntMap |
---|
| 2903 | /// \param value The value |
---|
| 2904 | ItemIt(const IterableIntMap& map, int value) : _map(&map) { |
---|
| 2905 | if (value < 0 || value >= int(_map->_first.size())) { |
---|
| 2906 | Parent::operator=(INVALID); |
---|
| 2907 | } else { |
---|
| 2908 | Parent::operator=(_map->_first[value]); |
---|
| 2909 | } |
---|
| 2910 | } |
---|
| 2911 | |
---|
| 2912 | /// \brief Increment operator. |
---|
| 2913 | /// |
---|
| 2914 | /// Increment Operator. |
---|
| 2915 | ItemIt& operator++() { |
---|
| 2916 | Parent::operator=(_map->IterableIntMap::Parent:: |
---|
| 2917 | operator[](static_cast<Parent&>(*this)).next); |
---|
| 2918 | return *this; |
---|
| 2919 | } |
---|
| 2920 | |
---|
| 2921 | |
---|
| 2922 | private: |
---|
| 2923 | const IterableIntMap* _map; |
---|
| 2924 | }; |
---|
| 2925 | |
---|
| 2926 | protected: |
---|
| 2927 | |
---|
| 2928 | virtual void erase(const Key& key) { |
---|
| 2929 | unlace(key); |
---|
| 2930 | Parent::erase(key); |
---|
| 2931 | } |
---|
| 2932 | |
---|
| 2933 | virtual void erase(const std::vector<Key>& keys) { |
---|
| 2934 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
| 2935 | unlace(keys[i]); |
---|
| 2936 | } |
---|
| 2937 | Parent::erase(keys); |
---|
| 2938 | } |
---|
| 2939 | |
---|
| 2940 | virtual void clear() { |
---|
| 2941 | _first.clear(); |
---|
| 2942 | Parent::clear(); |
---|
| 2943 | } |
---|
| 2944 | |
---|
| 2945 | private: |
---|
| 2946 | std::vector<ITEM> _first; |
---|
| 2947 | }; |
---|
| 2948 | |
---|
| 2949 | namespace _maps_bits { |
---|
| 2950 | template <typename Item, typename Value> |
---|
| 2951 | struct IterableValueMapNode { |
---|
| 2952 | IterableValueMapNode(Value _value = Value()) : value(_value) {} |
---|
| 2953 | Item prev, next; |
---|
| 2954 | Value value; |
---|
| 2955 | }; |
---|
| 2956 | } |
---|
| 2957 | |
---|
| 2958 | ///\ingroup graph_maps |
---|
| 2959 | /// |
---|
| 2960 | /// \brief Dynamic iterable map for comparable values. |
---|
| 2961 | /// |
---|
| 2962 | /// This class provides a special graph map type which can store |
---|
| 2963 | /// for each graph item(node, edge, etc.) a value. For each |
---|
| 2964 | /// value it is possible to iterate on the keys which mapped to the |
---|
| 2965 | /// given value. The type stores for each value a linked list with |
---|
| 2966 | /// the items which mapped to the value, and the values are stored |
---|
| 2967 | /// in balanced binary tree. The values of the map can be accessed |
---|
| 2968 | /// with stl compatible forward iterator. |
---|
| 2969 | /// |
---|
| 2970 | /// This type is not reference map so it cannot be modified with |
---|
| 2971 | /// the subscription operator. |
---|
| 2972 | /// |
---|
| 2973 | /// \see InvertableMap |
---|
| 2974 | /// |
---|
| 2975 | /// \param GR The graph type. |
---|
| 2976 | /// \param ITEM One of the graph's item type, the key of the map. |
---|
| 2977 | /// \param VAL Any comparable value type. |
---|
| 2978 | template <typename GR, typename ITEM, typename VAL> |
---|
| 2979 | class IterableValueMap |
---|
| 2980 | : protected ItemSetTraits<GR, ITEM>:: |
---|
| 2981 | template Map<_maps_bits::IterableValueMapNode<ITEM, VAL> >::Type { |
---|
| 2982 | public: |
---|
| 2983 | typedef typename ItemSetTraits<GR, ITEM>:: |
---|
| 2984 | template Map<_maps_bits::IterableValueMapNode<ITEM, VAL> >::Type Parent; |
---|
| 2985 | |
---|
| 2986 | /// The key type |
---|
| 2987 | typedef ITEM Key; |
---|
| 2988 | /// The value type |
---|
| 2989 | typedef VAL Value; |
---|
| 2990 | /// The graph type |
---|
| 2991 | typedef GR Graph; |
---|
| 2992 | |
---|
| 2993 | public: |
---|
| 2994 | |
---|
| 2995 | /// \brief Constructor of the Map with a given value. |
---|
| 2996 | /// |
---|
| 2997 | /// Constructor of the Map with a given value. |
---|
| 2998 | explicit IterableValueMap(const Graph& graph, |
---|
| 2999 | const Value& value = Value()) |
---|
| 3000 | : Parent(graph, _maps_bits::IterableValueMapNode<ITEM, VAL>(value)) { |
---|
| 3001 | for (typename Parent::ItemIt it(*this); it != INVALID; ++it) { |
---|
| 3002 | lace(it); |
---|
| 3003 | } |
---|
| 3004 | } |
---|
| 3005 | |
---|
| 3006 | protected: |
---|
| 3007 | |
---|
| 3008 | void unlace(const Key& key) { |
---|
| 3009 | typename Parent::Value& node = Parent::operator[](key); |
---|
| 3010 | if (node.prev != INVALID) { |
---|
| 3011 | Parent::operator[](node.prev).next = node.next; |
---|
| 3012 | } else { |
---|
| 3013 | if (node.next != INVALID) { |
---|
| 3014 | _first[node.value] = node.next; |
---|
| 3015 | } else { |
---|
| 3016 | _first.erase(node.value); |
---|
| 3017 | } |
---|
| 3018 | } |
---|
| 3019 | if (node.next != INVALID) { |
---|
| 3020 | Parent::operator[](node.next).prev = node.prev; |
---|
| 3021 | } |
---|
| 3022 | } |
---|
| 3023 | |
---|
| 3024 | void lace(const Key& key) { |
---|
| 3025 | typename Parent::Value& node = Parent::operator[](key); |
---|
| 3026 | typename std::map<Value, Key>::iterator it = _first.find(node.value); |
---|
| 3027 | if (it == _first.end()) { |
---|
| 3028 | node.prev = node.next = INVALID; |
---|
| 3029 | if (node.next != INVALID) { |
---|
| 3030 | Parent::operator[](node.next).prev = key; |
---|
| 3031 | } |
---|
| 3032 | _first.insert(std::make_pair(node.value, key)); |
---|
| 3033 | } else { |
---|
| 3034 | node.prev = INVALID; |
---|
| 3035 | node.next = it->second; |
---|
| 3036 | if (node.next != INVALID) { |
---|
| 3037 | Parent::operator[](node.next).prev = key; |
---|
| 3038 | } |
---|
| 3039 | it->second = key; |
---|
| 3040 | } |
---|
| 3041 | } |
---|
| 3042 | |
---|
| 3043 | public: |
---|
| 3044 | |
---|
| 3045 | /// \brief Forward iterator for values. |
---|
| 3046 | /// |
---|
| 3047 | /// This iterator is an stl compatible forward |
---|
| 3048 | /// iterator on the values of the map. The values can |
---|
| 3049 | /// be accessed in the [beginValue, endValue) range. |
---|
| 3050 | /// |
---|
| 3051 | class ValueIterator |
---|
| 3052 | : public std::iterator<std::forward_iterator_tag, Value> { |
---|
| 3053 | friend class IterableValueMap; |
---|
| 3054 | private: |
---|
| 3055 | ValueIterator(typename std::map<Value, Key>::const_iterator _it) |
---|
| 3056 | : it(_it) {} |
---|
| 3057 | public: |
---|
| 3058 | |
---|
| 3059 | ValueIterator() {} |
---|
| 3060 | |
---|
| 3061 | ValueIterator& operator++() { ++it; return *this; } |
---|
| 3062 | ValueIterator operator++(int) { |
---|
| 3063 | ValueIterator tmp(*this); |
---|
| 3064 | operator++(); |
---|
| 3065 | return tmp; |
---|
| 3066 | } |
---|
| 3067 | |
---|
| 3068 | const Value& operator*() const { return it->first; } |
---|
| 3069 | const Value* operator->() const { return &(it->first); } |
---|
| 3070 | |
---|
| 3071 | bool operator==(ValueIterator jt) const { return it == jt.it; } |
---|
| 3072 | bool operator!=(ValueIterator jt) const { return it != jt.it; } |
---|
| 3073 | |
---|
| 3074 | private: |
---|
| 3075 | typename std::map<Value, Key>::const_iterator it; |
---|
| 3076 | }; |
---|
| 3077 | |
---|
| 3078 | /// \brief Returns an iterator to the first value. |
---|
| 3079 | /// |
---|
| 3080 | /// Returns an stl compatible iterator to the |
---|
| 3081 | /// first value of the map. The values of the |
---|
| 3082 | /// map can be accessed in the [beginValue, endValue) |
---|
| 3083 | /// range. |
---|
| 3084 | ValueIterator beginValue() const { |
---|
| 3085 | return ValueIterator(_first.begin()); |
---|
| 3086 | } |
---|
| 3087 | |
---|
| 3088 | /// \brief Returns an iterator after the last value. |
---|
| 3089 | /// |
---|
| 3090 | /// Returns an stl compatible iterator after the |
---|
| 3091 | /// last value of the map. The values of the |
---|
| 3092 | /// map can be accessed in the [beginValue, endValue) |
---|
| 3093 | /// range. |
---|
| 3094 | ValueIterator endValue() const { |
---|
| 3095 | return ValueIterator(_first.end()); |
---|
| 3096 | } |
---|
| 3097 | |
---|
| 3098 | /// \brief Set operation of the map. |
---|
| 3099 | /// |
---|
| 3100 | /// Set operation of the map. |
---|
| 3101 | void set(const Key& key, const Value& value) { |
---|
| 3102 | unlace(key); |
---|
| 3103 | Parent::operator[](key).value = value; |
---|
| 3104 | lace(key); |
---|
| 3105 | } |
---|
| 3106 | |
---|
| 3107 | /// \brief Const subscript operator of the map. |
---|
| 3108 | /// |
---|
| 3109 | /// Const subscript operator of the map. |
---|
| 3110 | const Value& operator[](const Key& key) const { |
---|
| 3111 | return Parent::operator[](key).value; |
---|
| 3112 | } |
---|
| 3113 | |
---|
| 3114 | /// \brief Iterator for the keys with the same value. |
---|
| 3115 | /// |
---|
| 3116 | /// Iterator for the keys with the same value. It works |
---|
| 3117 | /// like a graph item iterator in the map, it can be converted |
---|
| 3118 | /// the item type of the map, incremented with \c ++ operator, and |
---|
| 3119 | /// if the iterator leave the last valid item it will be equal to |
---|
| 3120 | /// \c INVALID. |
---|
| 3121 | class ItemIt : public ITEM { |
---|
| 3122 | public: |
---|
| 3123 | typedef ITEM Parent; |
---|
| 3124 | |
---|
| 3125 | /// \brief Invalid constructor \& conversion. |
---|
| 3126 | /// |
---|
| 3127 | /// This constructor initializes the item to be invalid. |
---|
| 3128 | /// \sa Invalid for more details. |
---|
| 3129 | ItemIt(Invalid) : Parent(INVALID), _map(0) {} |
---|
| 3130 | |
---|
| 3131 | /// \brief Creates an iterator with a value. |
---|
| 3132 | /// |
---|
| 3133 | /// Creates an iterator with a value. It iterates on the |
---|
| 3134 | /// keys which have the given value. |
---|
| 3135 | /// \param map The IterableValueMap |
---|
| 3136 | /// \param value The value |
---|
| 3137 | ItemIt(const IterableValueMap& map, const Value& value) : _map(&map) { |
---|
| 3138 | typename std::map<Value, Key>::const_iterator it = |
---|
| 3139 | map._first.find(value); |
---|
| 3140 | if (it == map._first.end()) { |
---|
| 3141 | Parent::operator=(INVALID); |
---|
| 3142 | } else { |
---|
| 3143 | Parent::operator=(it->second); |
---|
| 3144 | } |
---|
| 3145 | } |
---|
| 3146 | |
---|
| 3147 | /// \brief Increment operator. |
---|
| 3148 | /// |
---|
| 3149 | /// Increment Operator. |
---|
| 3150 | ItemIt& operator++() { |
---|
| 3151 | Parent::operator=(_map->IterableValueMap::Parent:: |
---|
| 3152 | operator[](static_cast<Parent&>(*this)).next); |
---|
| 3153 | return *this; |
---|
| 3154 | } |
---|
| 3155 | |
---|
| 3156 | |
---|
| 3157 | private: |
---|
| 3158 | const IterableValueMap* _map; |
---|
| 3159 | }; |
---|
| 3160 | |
---|
| 3161 | protected: |
---|
| 3162 | |
---|
| 3163 | virtual void add(const Key& key) { |
---|
| 3164 | Parent::add(key); |
---|
| 3165 | unlace(key); |
---|
| 3166 | } |
---|
| 3167 | |
---|
| 3168 | virtual void add(const std::vector<Key>& keys) { |
---|
| 3169 | Parent::add(keys); |
---|
| 3170 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
| 3171 | lace(keys[i]); |
---|
| 3172 | } |
---|
| 3173 | } |
---|
| 3174 | |
---|
| 3175 | virtual void erase(const Key& key) { |
---|
| 3176 | unlace(key); |
---|
| 3177 | Parent::erase(key); |
---|
| 3178 | } |
---|
| 3179 | |
---|
| 3180 | virtual void erase(const std::vector<Key>& keys) { |
---|
| 3181 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
| 3182 | unlace(keys[i]); |
---|
| 3183 | } |
---|
| 3184 | Parent::erase(keys); |
---|
| 3185 | } |
---|
| 3186 | |
---|
| 3187 | virtual void build() { |
---|
| 3188 | Parent::build(); |
---|
| 3189 | for (typename Parent::ItemIt it(*this); it != INVALID; ++it) { |
---|
| 3190 | lace(it); |
---|
| 3191 | } |
---|
| 3192 | } |
---|
| 3193 | |
---|
| 3194 | virtual void clear() { |
---|
| 3195 | _first.clear(); |
---|
| 3196 | Parent::clear(); |
---|
| 3197 | } |
---|
| 3198 | |
---|
| 3199 | private: |
---|
| 3200 | std::map<Value, Key> _first; |
---|
| 3201 | }; |
---|
| 3202 | |
---|
[559] | 3203 | /// \brief Map of the source nodes of arcs in a digraph. |
---|
[220] | 3204 | /// |
---|
[559] | 3205 | /// SourceMap provides access for the source node of each arc in a digraph, |
---|
| 3206 | /// which is returned by the \c source() function of the digraph. |
---|
| 3207 | /// \tparam GR The digraph type. |
---|
[220] | 3208 | /// \see TargetMap |
---|
[559] | 3209 | template <typename GR> |
---|
[220] | 3210 | class SourceMap { |
---|
| 3211 | public: |
---|
| 3212 | |
---|
[559] | 3213 | ///\e |
---|
| 3214 | typedef typename GR::Arc Key; |
---|
| 3215 | ///\e |
---|
| 3216 | typedef typename GR::Node Value; |
---|
[220] | 3217 | |
---|
| 3218 | /// \brief Constructor |
---|
| 3219 | /// |
---|
[559] | 3220 | /// Constructor. |
---|
[313] | 3221 | /// \param digraph The digraph that the map belongs to. |
---|
[559] | 3222 | explicit SourceMap(const GR& digraph) : _graph(digraph) {} |
---|
| 3223 | |
---|
| 3224 | /// \brief Returns the source node of the given arc. |
---|
[220] | 3225 | /// |
---|
[559] | 3226 | /// Returns the source node of the given arc. |
---|
[220] | 3227 | Value operator[](const Key& arc) const { |
---|
[559] | 3228 | return _graph.source(arc); |
---|
[220] | 3229 | } |
---|
| 3230 | |
---|
| 3231 | private: |
---|
[559] | 3232 | const GR& _graph; |
---|
[220] | 3233 | }; |
---|
| 3234 | |
---|
[301] | 3235 | /// \brief Returns a \c SourceMap class. |
---|
[220] | 3236 | /// |
---|
[301] | 3237 | /// This function just returns an \c SourceMap class. |
---|
[220] | 3238 | /// \relates SourceMap |
---|
[559] | 3239 | template <typename GR> |
---|
| 3240 | inline SourceMap<GR> sourceMap(const GR& graph) { |
---|
| 3241 | return SourceMap<GR>(graph); |
---|
[220] | 3242 | } |
---|
| 3243 | |
---|
[559] | 3244 | /// \brief Map of the target nodes of arcs in a digraph. |
---|
[220] | 3245 | /// |
---|
[559] | 3246 | /// TargetMap provides access for the target node of each arc in a digraph, |
---|
| 3247 | /// which is returned by the \c target() function of the digraph. |
---|
| 3248 | /// \tparam GR The digraph type. |
---|
[220] | 3249 | /// \see SourceMap |
---|
[559] | 3250 | template <typename GR> |
---|
[220] | 3251 | class TargetMap { |
---|
| 3252 | public: |
---|
| 3253 | |
---|
[559] | 3254 | ///\e |
---|
| 3255 | typedef typename GR::Arc Key; |
---|
| 3256 | ///\e |
---|
| 3257 | typedef typename GR::Node Value; |
---|
[220] | 3258 | |
---|
| 3259 | /// \brief Constructor |
---|
| 3260 | /// |
---|
[559] | 3261 | /// Constructor. |
---|
[313] | 3262 | /// \param digraph The digraph that the map belongs to. |
---|
[559] | 3263 | explicit TargetMap(const GR& digraph) : _graph(digraph) {} |
---|
| 3264 | |
---|
| 3265 | /// \brief Returns the target node of the given arc. |
---|
[220] | 3266 | /// |
---|
[559] | 3267 | /// Returns the target node of the given arc. |
---|
[220] | 3268 | Value operator[](const Key& e) const { |
---|
[559] | 3269 | return _graph.target(e); |
---|
[220] | 3270 | } |
---|
| 3271 | |
---|
| 3272 | private: |
---|
[559] | 3273 | const GR& _graph; |
---|
[220] | 3274 | }; |
---|
| 3275 | |
---|
[301] | 3276 | /// \brief Returns a \c TargetMap class. |
---|
[220] | 3277 | /// |
---|
[301] | 3278 | /// This function just returns a \c TargetMap class. |
---|
[220] | 3279 | /// \relates TargetMap |
---|
[559] | 3280 | template <typename GR> |
---|
| 3281 | inline TargetMap<GR> targetMap(const GR& graph) { |
---|
| 3282 | return TargetMap<GR>(graph); |
---|
[220] | 3283 | } |
---|
| 3284 | |
---|
[559] | 3285 | /// \brief Map of the "forward" directed arc view of edges in a graph. |
---|
[220] | 3286 | /// |
---|
[559] | 3287 | /// ForwardMap provides access for the "forward" directed arc view of |
---|
| 3288 | /// each edge in a graph, which is returned by the \c direct() function |
---|
| 3289 | /// of the graph with \c true parameter. |
---|
| 3290 | /// \tparam GR The graph type. |
---|
[220] | 3291 | /// \see BackwardMap |
---|
[559] | 3292 | template <typename GR> |
---|
[220] | 3293 | class ForwardMap { |
---|
| 3294 | public: |
---|
| 3295 | |
---|
[559] | 3296 | typedef typename GR::Arc Value; |
---|
| 3297 | typedef typename GR::Edge Key; |
---|
[220] | 3298 | |
---|
| 3299 | /// \brief Constructor |
---|
| 3300 | /// |
---|
[559] | 3301 | /// Constructor. |
---|
[313] | 3302 | /// \param graph The graph that the map belongs to. |
---|
[559] | 3303 | explicit ForwardMap(const GR& graph) : _graph(graph) {} |
---|
| 3304 | |
---|
| 3305 | /// \brief Returns the "forward" directed arc view of the given edge. |
---|
[220] | 3306 | /// |
---|
[559] | 3307 | /// Returns the "forward" directed arc view of the given edge. |
---|
[220] | 3308 | Value operator[](const Key& key) const { |
---|
| 3309 | return _graph.direct(key, true); |
---|
| 3310 | } |
---|
| 3311 | |
---|
| 3312 | private: |
---|
[559] | 3313 | const GR& _graph; |
---|
[220] | 3314 | }; |
---|
| 3315 | |
---|
[301] | 3316 | /// \brief Returns a \c ForwardMap class. |
---|
[220] | 3317 | /// |
---|
[301] | 3318 | /// This function just returns an \c ForwardMap class. |
---|
[220] | 3319 | /// \relates ForwardMap |
---|
[559] | 3320 | template <typename GR> |
---|
| 3321 | inline ForwardMap<GR> forwardMap(const GR& graph) { |
---|
| 3322 | return ForwardMap<GR>(graph); |
---|
[220] | 3323 | } |
---|
| 3324 | |
---|
[559] | 3325 | /// \brief Map of the "backward" directed arc view of edges in a graph. |
---|
[220] | 3326 | /// |
---|
[559] | 3327 | /// BackwardMap provides access for the "backward" directed arc view of |
---|
| 3328 | /// each edge in a graph, which is returned by the \c direct() function |
---|
| 3329 | /// of the graph with \c false parameter. |
---|
| 3330 | /// \tparam GR The graph type. |
---|
[220] | 3331 | /// \see ForwardMap |
---|
[559] | 3332 | template <typename GR> |
---|
[220] | 3333 | class BackwardMap { |
---|
| 3334 | public: |
---|
| 3335 | |
---|
[559] | 3336 | typedef typename GR::Arc Value; |
---|
| 3337 | typedef typename GR::Edge Key; |
---|
[220] | 3338 | |
---|
| 3339 | /// \brief Constructor |
---|
| 3340 | /// |
---|
[559] | 3341 | /// Constructor. |
---|
[313] | 3342 | /// \param graph The graph that the map belongs to. |
---|
[559] | 3343 | explicit BackwardMap(const GR& graph) : _graph(graph) {} |
---|
| 3344 | |
---|
| 3345 | /// \brief Returns the "backward" directed arc view of the given edge. |
---|
[220] | 3346 | /// |
---|
[559] | 3347 | /// Returns the "backward" directed arc view of the given edge. |
---|
[220] | 3348 | Value operator[](const Key& key) const { |
---|
| 3349 | return _graph.direct(key, false); |
---|
| 3350 | } |
---|
| 3351 | |
---|
| 3352 | private: |
---|
[559] | 3353 | const GR& _graph; |
---|
[220] | 3354 | }; |
---|
| 3355 | |
---|
[301] | 3356 | /// \brief Returns a \c BackwardMap class |
---|
| 3357 | |
---|
| 3358 | /// This function just returns a \c BackwardMap class. |
---|
[220] | 3359 | /// \relates BackwardMap |
---|
[559] | 3360 | template <typename GR> |
---|
| 3361 | inline BackwardMap<GR> backwardMap(const GR& graph) { |
---|
| 3362 | return BackwardMap<GR>(graph); |
---|
[220] | 3363 | } |
---|
| 3364 | |
---|
[559] | 3365 | /// \brief Map of the in-degrees of nodes in a digraph. |
---|
[220] | 3366 | /// |
---|
| 3367 | /// This map returns the in-degree of a node. Once it is constructed, |
---|
[559] | 3368 | /// the degrees are stored in a standard \c NodeMap, so each query is done |
---|
[220] | 3369 | /// in constant time. On the other hand, the values are updated automatically |
---|
| 3370 | /// whenever the digraph changes. |
---|
| 3371 | /// |
---|
[693] | 3372 | /// \warning Besides \c addNode() and \c addArc(), a digraph structure |
---|
[559] | 3373 | /// may provide alternative ways to modify the digraph. |
---|
| 3374 | /// The correct behavior of InDegMap is not guarantied if these additional |
---|
| 3375 | /// features are used. For example the functions |
---|
| 3376 | /// \ref ListDigraph::changeSource() "changeSource()", |
---|
[220] | 3377 | /// \ref ListDigraph::changeTarget() "changeTarget()" and |
---|
| 3378 | /// \ref ListDigraph::reverseArc() "reverseArc()" |
---|
| 3379 | /// of \ref ListDigraph will \e not update the degree values correctly. |
---|
| 3380 | /// |
---|
| 3381 | /// \sa OutDegMap |
---|
[559] | 3382 | template <typename GR> |
---|
[220] | 3383 | class InDegMap |
---|
[559] | 3384 | : protected ItemSetTraits<GR, typename GR::Arc> |
---|
[220] | 3385 | ::ItemNotifier::ObserverBase { |
---|
| 3386 | |
---|
| 3387 | public: |
---|
[693] | 3388 | |
---|
[617] | 3389 | /// The graph type of InDegMap |
---|
| 3390 | typedef GR Graph; |
---|
[559] | 3391 | typedef GR Digraph; |
---|
| 3392 | /// The key type |
---|
| 3393 | typedef typename Digraph::Node Key; |
---|
| 3394 | /// The value type |
---|
[220] | 3395 | typedef int Value; |
---|
| 3396 | |
---|
| 3397 | typedef typename ItemSetTraits<Digraph, typename Digraph::Arc> |
---|
| 3398 | ::ItemNotifier::ObserverBase Parent; |
---|
| 3399 | |
---|
| 3400 | private: |
---|
| 3401 | |
---|
| 3402 | class AutoNodeMap |
---|
| 3403 | : public ItemSetTraits<Digraph, Key>::template Map<int>::Type { |
---|
| 3404 | public: |
---|
| 3405 | |
---|
| 3406 | typedef typename ItemSetTraits<Digraph, Key>:: |
---|
| 3407 | template Map<int>::Type Parent; |
---|
| 3408 | |
---|
| 3409 | AutoNodeMap(const Digraph& digraph) : Parent(digraph, 0) {} |
---|
| 3410 | |
---|
| 3411 | virtual void add(const Key& key) { |
---|
| 3412 | Parent::add(key); |
---|
| 3413 | Parent::set(key, 0); |
---|
| 3414 | } |
---|
| 3415 | |
---|
| 3416 | virtual void add(const std::vector<Key>& keys) { |
---|
| 3417 | Parent::add(keys); |
---|
| 3418 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
| 3419 | Parent::set(keys[i], 0); |
---|
| 3420 | } |
---|
| 3421 | } |
---|
| 3422 | |
---|
| 3423 | virtual void build() { |
---|
| 3424 | Parent::build(); |
---|
| 3425 | Key it; |
---|
| 3426 | typename Parent::Notifier* nf = Parent::notifier(); |
---|
| 3427 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
| 3428 | Parent::set(it, 0); |
---|
| 3429 | } |
---|
| 3430 | } |
---|
| 3431 | }; |
---|
| 3432 | |
---|
| 3433 | public: |
---|
| 3434 | |
---|
| 3435 | /// \brief Constructor. |
---|
| 3436 | /// |
---|
[559] | 3437 | /// Constructor for creating an in-degree map. |
---|
| 3438 | explicit InDegMap(const Digraph& graph) |
---|
| 3439 | : _digraph(graph), _deg(graph) { |
---|
[220] | 3440 | Parent::attach(_digraph.notifier(typename Digraph::Arc())); |
---|
| 3441 | |
---|
| 3442 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
| 3443 | _deg[it] = countInArcs(_digraph, it); |
---|
| 3444 | } |
---|
| 3445 | } |
---|
| 3446 | |
---|
[559] | 3447 | /// \brief Gives back the in-degree of a Node. |
---|
| 3448 | /// |
---|
[220] | 3449 | /// Gives back the in-degree of a Node. |
---|
| 3450 | int operator[](const Key& key) const { |
---|
| 3451 | return _deg[key]; |
---|
| 3452 | } |
---|
| 3453 | |
---|
| 3454 | protected: |
---|
| 3455 | |
---|
| 3456 | typedef typename Digraph::Arc Arc; |
---|
| 3457 | |
---|
| 3458 | virtual void add(const Arc& arc) { |
---|
| 3459 | ++_deg[_digraph.target(arc)]; |
---|
| 3460 | } |
---|
| 3461 | |
---|
| 3462 | virtual void add(const std::vector<Arc>& arcs) { |
---|
| 3463 | for (int i = 0; i < int(arcs.size()); ++i) { |
---|
| 3464 | ++_deg[_digraph.target(arcs[i])]; |
---|
| 3465 | } |
---|
| 3466 | } |
---|
| 3467 | |
---|
| 3468 | virtual void erase(const Arc& arc) { |
---|
| 3469 | --_deg[_digraph.target(arc)]; |
---|
| 3470 | } |
---|
| 3471 | |
---|
| 3472 | virtual void erase(const std::vector<Arc>& arcs) { |
---|
| 3473 | for (int i = 0; i < int(arcs.size()); ++i) { |
---|
| 3474 | --_deg[_digraph.target(arcs[i])]; |
---|
| 3475 | } |
---|
| 3476 | } |
---|
| 3477 | |
---|
| 3478 | virtual void build() { |
---|
| 3479 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
| 3480 | _deg[it] = countInArcs(_digraph, it); |
---|
| 3481 | } |
---|
| 3482 | } |
---|
| 3483 | |
---|
| 3484 | virtual void clear() { |
---|
| 3485 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
| 3486 | _deg[it] = 0; |
---|
| 3487 | } |
---|
| 3488 | } |
---|
| 3489 | private: |
---|
| 3490 | |
---|
| 3491 | const Digraph& _digraph; |
---|
| 3492 | AutoNodeMap _deg; |
---|
| 3493 | }; |
---|
| 3494 | |
---|
[559] | 3495 | /// \brief Map of the out-degrees of nodes in a digraph. |
---|
[220] | 3496 | /// |
---|
| 3497 | /// This map returns the out-degree of a node. Once it is constructed, |
---|
[559] | 3498 | /// the degrees are stored in a standard \c NodeMap, so each query is done |
---|
[220] | 3499 | /// in constant time. On the other hand, the values are updated automatically |
---|
| 3500 | /// whenever the digraph changes. |
---|
| 3501 | /// |
---|
[693] | 3502 | /// \warning Besides \c addNode() and \c addArc(), a digraph structure |
---|
[559] | 3503 | /// may provide alternative ways to modify the digraph. |
---|
| 3504 | /// The correct behavior of OutDegMap is not guarantied if these additional |
---|
| 3505 | /// features are used. For example the functions |
---|
| 3506 | /// \ref ListDigraph::changeSource() "changeSource()", |
---|
[220] | 3507 | /// \ref ListDigraph::changeTarget() "changeTarget()" and |
---|
| 3508 | /// \ref ListDigraph::reverseArc() "reverseArc()" |
---|
| 3509 | /// of \ref ListDigraph will \e not update the degree values correctly. |
---|
| 3510 | /// |
---|
| 3511 | /// \sa InDegMap |
---|
[559] | 3512 | template <typename GR> |
---|
[220] | 3513 | class OutDegMap |
---|
[559] | 3514 | : protected ItemSetTraits<GR, typename GR::Arc> |
---|
[220] | 3515 | ::ItemNotifier::ObserverBase { |
---|
| 3516 | |
---|
| 3517 | public: |
---|
| 3518 | |
---|
[617] | 3519 | /// The graph type of OutDegMap |
---|
| 3520 | typedef GR Graph; |
---|
[559] | 3521 | typedef GR Digraph; |
---|
| 3522 | /// The key type |
---|
| 3523 | typedef typename Digraph::Node Key; |
---|
| 3524 | /// The value type |
---|
[220] | 3525 | typedef int Value; |
---|
| 3526 | |
---|
| 3527 | typedef typename ItemSetTraits<Digraph, typename Digraph::Arc> |
---|
| 3528 | ::ItemNotifier::ObserverBase Parent; |
---|
| 3529 | |
---|
| 3530 | private: |
---|
| 3531 | |
---|
| 3532 | class AutoNodeMap |
---|
| 3533 | : public ItemSetTraits<Digraph, Key>::template Map<int>::Type { |
---|
| 3534 | public: |
---|
| 3535 | |
---|
| 3536 | typedef typename ItemSetTraits<Digraph, Key>:: |
---|
| 3537 | template Map<int>::Type Parent; |
---|
| 3538 | |
---|
| 3539 | AutoNodeMap(const Digraph& digraph) : Parent(digraph, 0) {} |
---|
| 3540 | |
---|
| 3541 | virtual void add(const Key& key) { |
---|
| 3542 | Parent::add(key); |
---|
| 3543 | Parent::set(key, 0); |
---|
| 3544 | } |
---|
| 3545 | virtual void add(const std::vector<Key>& keys) { |
---|
| 3546 | Parent::add(keys); |
---|
| 3547 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
| 3548 | Parent::set(keys[i], 0); |
---|
| 3549 | } |
---|
| 3550 | } |
---|
| 3551 | virtual void build() { |
---|
| 3552 | Parent::build(); |
---|
| 3553 | Key it; |
---|
| 3554 | typename Parent::Notifier* nf = Parent::notifier(); |
---|
| 3555 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
| 3556 | Parent::set(it, 0); |
---|
| 3557 | } |
---|
| 3558 | } |
---|
| 3559 | }; |
---|
| 3560 | |
---|
| 3561 | public: |
---|
| 3562 | |
---|
| 3563 | /// \brief Constructor. |
---|
| 3564 | /// |
---|
[559] | 3565 | /// Constructor for creating an out-degree map. |
---|
| 3566 | explicit OutDegMap(const Digraph& graph) |
---|
| 3567 | : _digraph(graph), _deg(graph) { |
---|
[220] | 3568 | Parent::attach(_digraph.notifier(typename Digraph::Arc())); |
---|
| 3569 | |
---|
| 3570 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
| 3571 | _deg[it] = countOutArcs(_digraph, it); |
---|
| 3572 | } |
---|
| 3573 | } |
---|
| 3574 | |
---|
[559] | 3575 | /// \brief Gives back the out-degree of a Node. |
---|
| 3576 | /// |
---|
[220] | 3577 | /// Gives back the out-degree of a Node. |
---|
| 3578 | int operator[](const Key& key) const { |
---|
| 3579 | return _deg[key]; |
---|
| 3580 | } |
---|
| 3581 | |
---|
| 3582 | protected: |
---|
| 3583 | |
---|
| 3584 | typedef typename Digraph::Arc Arc; |
---|
| 3585 | |
---|
| 3586 | virtual void add(const Arc& arc) { |
---|
| 3587 | ++_deg[_digraph.source(arc)]; |
---|
| 3588 | } |
---|
| 3589 | |
---|
| 3590 | virtual void add(const std::vector<Arc>& arcs) { |
---|
| 3591 | for (int i = 0; i < int(arcs.size()); ++i) { |
---|
| 3592 | ++_deg[_digraph.source(arcs[i])]; |
---|
| 3593 | } |
---|
| 3594 | } |
---|
| 3595 | |
---|
| 3596 | virtual void erase(const Arc& arc) { |
---|
| 3597 | --_deg[_digraph.source(arc)]; |
---|
| 3598 | } |
---|
| 3599 | |
---|
| 3600 | virtual void erase(const std::vector<Arc>& arcs) { |
---|
| 3601 | for (int i = 0; i < int(arcs.size()); ++i) { |
---|
| 3602 | --_deg[_digraph.source(arcs[i])]; |
---|
| 3603 | } |
---|
| 3604 | } |
---|
| 3605 | |
---|
| 3606 | virtual void build() { |
---|
| 3607 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
| 3608 | _deg[it] = countOutArcs(_digraph, it); |
---|
| 3609 | } |
---|
| 3610 | } |
---|
| 3611 | |
---|
| 3612 | virtual void clear() { |
---|
| 3613 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
| 3614 | _deg[it] = 0; |
---|
| 3615 | } |
---|
| 3616 | } |
---|
| 3617 | private: |
---|
| 3618 | |
---|
| 3619 | const Digraph& _digraph; |
---|
| 3620 | AutoNodeMap _deg; |
---|
| 3621 | }; |
---|
| 3622 | |
---|
[559] | 3623 | /// \brief Potential difference map |
---|
| 3624 | /// |
---|
[584] | 3625 | /// PotentialDifferenceMap returns the difference between the potentials of |
---|
| 3626 | /// the source and target nodes of each arc in a digraph, i.e. it returns |
---|
[559] | 3627 | /// \code |
---|
| 3628 | /// potential[gr.target(arc)] - potential[gr.source(arc)]. |
---|
| 3629 | /// \endcode |
---|
| 3630 | /// \tparam GR The digraph type. |
---|
| 3631 | /// \tparam POT A node map storing the potentials. |
---|
| 3632 | template <typename GR, typename POT> |
---|
| 3633 | class PotentialDifferenceMap { |
---|
| 3634 | public: |
---|
| 3635 | /// Key type |
---|
| 3636 | typedef typename GR::Arc Key; |
---|
| 3637 | /// Value type |
---|
| 3638 | typedef typename POT::Value Value; |
---|
| 3639 | |
---|
| 3640 | /// \brief Constructor |
---|
| 3641 | /// |
---|
| 3642 | /// Contructor of the map. |
---|
| 3643 | explicit PotentialDifferenceMap(const GR& gr, |
---|
| 3644 | const POT& potential) |
---|
| 3645 | : _digraph(gr), _potential(potential) {} |
---|
| 3646 | |
---|
| 3647 | /// \brief Returns the potential difference for the given arc. |
---|
| 3648 | /// |
---|
| 3649 | /// Returns the potential difference for the given arc, i.e. |
---|
| 3650 | /// \code |
---|
| 3651 | /// potential[gr.target(arc)] - potential[gr.source(arc)]. |
---|
| 3652 | /// \endcode |
---|
| 3653 | Value operator[](const Key& arc) const { |
---|
| 3654 | return _potential[_digraph.target(arc)] - |
---|
| 3655 | _potential[_digraph.source(arc)]; |
---|
| 3656 | } |
---|
| 3657 | |
---|
| 3658 | private: |
---|
| 3659 | const GR& _digraph; |
---|
| 3660 | const POT& _potential; |
---|
| 3661 | }; |
---|
| 3662 | |
---|
| 3663 | /// \brief Returns a PotentialDifferenceMap. |
---|
| 3664 | /// |
---|
| 3665 | /// This function just returns a PotentialDifferenceMap. |
---|
| 3666 | /// \relates PotentialDifferenceMap |
---|
| 3667 | template <typename GR, typename POT> |
---|
| 3668 | PotentialDifferenceMap<GR, POT> |
---|
| 3669 | potentialDifferenceMap(const GR& gr, const POT& potential) { |
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| 3670 | return PotentialDifferenceMap<GR, POT>(gr, potential); |
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| 3671 | } |
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| 3672 | |
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[25] | 3673 | /// @} |
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| 3674 | } |
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| 3675 | |
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| 3676 | #endif // LEMON_MAPS_H |
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