1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
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2 | * |
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3 | * This file is a part of LEMON, a generic C++ optimization library. |
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4 | * |
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5 | * Copyright (C) 2003-2009 |
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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 | #include <map> |
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26 | |
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27 | #include <lemon/core.h> |
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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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32 | |
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33 | namespace lemon { |
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34 | |
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35 | /// \addtogroup maps |
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36 | /// @{ |
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37 | |
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38 | /// Base class of maps. |
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39 | |
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40 | /// Base class of maps. It provides the necessary type definitions |
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41 | /// required by the map %concepts. |
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42 | template<typename K, typename V> |
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43 | class MapBase { |
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44 | public: |
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45 | /// \brief The key type of the map. |
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46 | typedef K Key; |
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47 | /// \brief The value type of the map. |
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48 | /// (The type of objects associated with the keys). |
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49 | typedef V Value; |
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50 | }; |
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51 | |
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52 | |
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53 | /// Null map. (a.k.a. DoNothingMap) |
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54 | |
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55 | /// This map can be used if you have to provide a map only for |
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56 | /// its type definitions, or if you have to provide a writable map, |
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57 | /// but data written to it is not required (i.e. it will be sent to |
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58 | /// <tt>/dev/null</tt>). |
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59 | /// It conforms to the \ref concepts::ReadWriteMap "ReadWriteMap" concept. |
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60 | /// |
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61 | /// \sa ConstMap |
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62 | template<typename K, typename V> |
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63 | class NullMap : public MapBase<K, V> { |
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64 | public: |
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65 | ///\e |
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66 | typedef K Key; |
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67 | ///\e |
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68 | typedef V Value; |
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69 | |
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70 | /// Gives back a default constructed element. |
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71 | Value operator[](const Key&) const { return Value(); } |
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72 | /// Absorbs the value. |
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73 | void set(const Key&, const Value&) {} |
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74 | }; |
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75 | |
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76 | /// Returns a \c NullMap class |
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77 | |
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78 | /// This function just returns a \c NullMap class. |
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79 | /// \relates NullMap |
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80 | template <typename K, typename V> |
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81 | NullMap<K, V> nullMap() { |
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82 | return NullMap<K, V>(); |
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83 | } |
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84 | |
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85 | |
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86 | /// Constant map. |
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87 | |
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88 | /// This \ref concepts::ReadMap "readable map" assigns a specified |
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89 | /// value to each key. |
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90 | /// |
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91 | /// In other aspects it is equivalent to \c NullMap. |
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92 | /// So it conforms to the \ref concepts::ReadWriteMap "ReadWriteMap" |
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93 | /// concept, but it absorbs the data written to it. |
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94 | /// |
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95 | /// The simplest way of using this map is through the constMap() |
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96 | /// function. |
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97 | /// |
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98 | /// \sa NullMap |
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99 | /// \sa IdentityMap |
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100 | template<typename K, typename V> |
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101 | class ConstMap : public MapBase<K, V> { |
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102 | private: |
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103 | V _value; |
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104 | public: |
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105 | ///\e |
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106 | typedef K Key; |
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107 | ///\e |
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108 | typedef V Value; |
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109 | |
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110 | /// Default constructor |
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111 | |
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112 | /// Default constructor. |
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113 | /// The value of the map will be default constructed. |
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114 | ConstMap() {} |
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115 | |
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116 | /// Constructor with specified initial value |
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117 | |
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118 | /// Constructor with specified initial value. |
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119 | /// \param v The initial value of the map. |
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120 | ConstMap(const Value &v) : _value(v) {} |
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121 | |
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122 | /// Gives back the specified value. |
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123 | Value operator[](const Key&) const { return _value; } |
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124 | |
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125 | /// Absorbs the value. |
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126 | void set(const Key&, const Value&) {} |
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127 | |
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128 | /// Sets the value that is assigned to each key. |
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129 | void setAll(const Value &v) { |
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130 | _value = v; |
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131 | } |
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132 | |
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133 | template<typename V1> |
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134 | ConstMap(const ConstMap<K, V1> &, const Value &v) : _value(v) {} |
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135 | }; |
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136 | |
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137 | /// Returns a \c ConstMap class |
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138 | |
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139 | /// This function just returns a \c ConstMap class. |
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140 | /// \relates ConstMap |
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141 | template<typename K, typename V> |
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142 | inline ConstMap<K, V> constMap(const V &v) { |
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143 | return ConstMap<K, V>(v); |
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144 | } |
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145 | |
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146 | template<typename K, typename V> |
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147 | inline ConstMap<K, V> constMap() { |
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148 | return ConstMap<K, V>(); |
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149 | } |
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150 | |
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151 | |
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152 | template<typename T, T v> |
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153 | struct Const {}; |
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154 | |
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155 | /// Constant map with inlined constant value. |
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156 | |
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157 | /// This \ref concepts::ReadMap "readable map" assigns a specified |
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158 | /// value to each key. |
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159 | /// |
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160 | /// In other aspects it is equivalent to \c NullMap. |
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161 | /// So it conforms to the \ref concepts::ReadWriteMap "ReadWriteMap" |
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162 | /// concept, but it absorbs the data written to it. |
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163 | /// |
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164 | /// The simplest way of using this map is through the constMap() |
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165 | /// function. |
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166 | /// |
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167 | /// \sa NullMap |
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168 | /// \sa IdentityMap |
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169 | template<typename K, typename V, V v> |
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170 | class ConstMap<K, Const<V, v> > : public MapBase<K, V> { |
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171 | public: |
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172 | ///\e |
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173 | typedef K Key; |
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174 | ///\e |
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175 | typedef V Value; |
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176 | |
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177 | /// Constructor. |
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178 | ConstMap() {} |
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179 | |
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180 | /// Gives back the specified value. |
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181 | Value operator[](const Key&) const { return v; } |
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182 | |
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183 | /// Absorbs the value. |
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184 | void set(const Key&, const Value&) {} |
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185 | }; |
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186 | |
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187 | /// Returns a \c ConstMap class with inlined constant value |
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188 | |
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189 | /// This function just returns a \c ConstMap class with inlined |
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190 | /// constant value. |
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191 | /// \relates ConstMap |
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192 | template<typename K, typename V, V v> |
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193 | inline ConstMap<K, Const<V, v> > constMap() { |
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194 | return ConstMap<K, Const<V, v> >(); |
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195 | } |
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196 | |
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197 | |
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198 | /// Identity map. |
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199 | |
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200 | /// This \ref concepts::ReadMap "read-only map" gives back the given |
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201 | /// key as value without any modification. |
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202 | /// |
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203 | /// \sa ConstMap |
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204 | template <typename T> |
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205 | class IdentityMap : public MapBase<T, T> { |
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206 | public: |
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207 | ///\e |
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208 | typedef T Key; |
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209 | ///\e |
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210 | typedef T Value; |
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211 | |
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212 | /// Gives back the given value without any modification. |
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213 | Value operator[](const Key &k) const { |
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214 | return k; |
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215 | } |
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216 | }; |
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217 | |
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218 | /// Returns an \c IdentityMap class |
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219 | |
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220 | /// This function just returns an \c IdentityMap class. |
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221 | /// \relates IdentityMap |
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222 | template<typename T> |
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223 | inline IdentityMap<T> identityMap() { |
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224 | return IdentityMap<T>(); |
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225 | } |
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226 | |
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227 | |
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228 | /// \brief Map for storing values for integer keys from the range |
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229 | /// <tt>[0..size-1]</tt>. |
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230 | /// |
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231 | /// This map is essentially a wrapper for \c std::vector. It assigns |
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232 | /// values to integer keys from the range <tt>[0..size-1]</tt>. |
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233 | /// It can be used with some data structures, for example |
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234 | /// \c UnionFind, \c BinHeap, when the used items are small |
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235 | /// integers. This map conforms to the \ref concepts::ReferenceMap |
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236 | /// "ReferenceMap" concept. |
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237 | /// |
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238 | /// The simplest way of using this map is through the rangeMap() |
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239 | /// function. |
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240 | template <typename V> |
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241 | class RangeMap : public MapBase<int, V> { |
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242 | template <typename V1> |
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243 | friend class RangeMap; |
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244 | private: |
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245 | |
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246 | typedef std::vector<V> Vector; |
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247 | Vector _vector; |
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248 | |
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249 | public: |
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250 | |
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251 | /// Key type |
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252 | typedef int Key; |
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253 | /// Value type |
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254 | typedef V Value; |
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255 | /// Reference type |
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256 | typedef typename Vector::reference Reference; |
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257 | /// Const reference type |
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258 | typedef typename Vector::const_reference ConstReference; |
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259 | |
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260 | typedef True ReferenceMapTag; |
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261 | |
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262 | public: |
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263 | |
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264 | /// Constructor with specified default value. |
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265 | RangeMap(int size = 0, const Value &value = Value()) |
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266 | : _vector(size, value) {} |
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267 | |
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268 | /// Constructs the map from an appropriate \c std::vector. |
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269 | template <typename V1> |
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270 | RangeMap(const std::vector<V1>& vector) |
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271 | : _vector(vector.begin(), vector.end()) {} |
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272 | |
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273 | /// Constructs the map from another \c RangeMap. |
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274 | template <typename V1> |
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275 | RangeMap(const RangeMap<V1> &c) |
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276 | : _vector(c._vector.begin(), c._vector.end()) {} |
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277 | |
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278 | /// Returns the size of the map. |
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279 | int size() { |
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280 | return _vector.size(); |
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281 | } |
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282 | |
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283 | /// Resizes the map. |
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284 | |
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285 | /// Resizes the underlying \c std::vector container, so changes the |
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286 | /// keyset of the map. |
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287 | /// \param size The new size of the map. The new keyset will be the |
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288 | /// range <tt>[0..size-1]</tt>. |
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289 | /// \param value The default value to assign to the new keys. |
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290 | void resize(int size, const Value &value = Value()) { |
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291 | _vector.resize(size, value); |
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292 | } |
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293 | |
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294 | private: |
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295 | |
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296 | RangeMap& operator=(const RangeMap&); |
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297 | |
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298 | public: |
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299 | |
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300 | ///\e |
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301 | Reference operator[](const Key &k) { |
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302 | return _vector[k]; |
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303 | } |
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304 | |
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305 | ///\e |
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306 | ConstReference operator[](const Key &k) const { |
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307 | return _vector[k]; |
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308 | } |
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309 | |
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310 | ///\e |
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311 | void set(const Key &k, const Value &v) { |
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312 | _vector[k] = v; |
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313 | } |
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314 | }; |
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315 | |
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316 | /// Returns a \c RangeMap class |
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317 | |
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318 | /// This function just returns a \c RangeMap class. |
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319 | /// \relates RangeMap |
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320 | template<typename V> |
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321 | inline RangeMap<V> rangeMap(int size = 0, const V &value = V()) { |
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322 | return RangeMap<V>(size, value); |
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323 | } |
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324 | |
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325 | /// \brief Returns a \c RangeMap class created from an appropriate |
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326 | /// \c std::vector |
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327 | |
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328 | /// This function just returns a \c RangeMap class created from an |
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329 | /// appropriate \c std::vector. |
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330 | /// \relates RangeMap |
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331 | template<typename V> |
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332 | inline RangeMap<V> rangeMap(const std::vector<V> &vector) { |
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333 | return RangeMap<V>(vector); |
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334 | } |
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335 | |
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336 | |
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337 | /// Map type based on \c std::map |
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338 | |
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339 | /// This map is essentially a wrapper for \c std::map with addition |
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340 | /// that you can specify a default value for the keys that are not |
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341 | /// stored actually. This value can be different from the default |
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342 | /// contructed value (i.e. \c %Value()). |
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343 | /// This type conforms to the \ref concepts::ReferenceMap "ReferenceMap" |
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344 | /// concept. |
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345 | /// |
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346 | /// This map is useful if a default value should be assigned to most of |
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347 | /// the keys and different values should be assigned only to a few |
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348 | /// keys (i.e. the map is "sparse"). |
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349 | /// The name of this type also refers to this important usage. |
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350 | /// |
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351 | /// Apart form that this map can be used in many other cases since it |
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352 | /// is based on \c std::map, which is a general associative container. |
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353 | /// However keep in mind that it is usually not as efficient as other |
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354 | /// maps. |
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355 | /// |
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356 | /// The simplest way of using this map is through the sparseMap() |
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357 | /// function. |
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358 | template <typename K, typename V, typename Comp = std::less<K> > |
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359 | class SparseMap : public MapBase<K, V> { |
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360 | template <typename K1, typename V1, typename C1> |
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361 | friend class SparseMap; |
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362 | public: |
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363 | |
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364 | /// Key type |
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365 | typedef K Key; |
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366 | /// Value type |
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367 | typedef V Value; |
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368 | /// Reference type |
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369 | typedef Value& Reference; |
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370 | /// Const reference type |
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371 | typedef const Value& ConstReference; |
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372 | |
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373 | typedef True ReferenceMapTag; |
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374 | |
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375 | private: |
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376 | |
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377 | typedef std::map<K, V, Comp> Map; |
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378 | Map _map; |
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379 | Value _value; |
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380 | |
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381 | public: |
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382 | |
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383 | /// \brief Constructor with specified default value. |
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384 | SparseMap(const Value &value = Value()) : _value(value) {} |
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385 | /// \brief Constructs the map from an appropriate \c std::map, and |
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386 | /// explicitly specifies a default value. |
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387 | template <typename V1, typename Comp1> |
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388 | SparseMap(const std::map<Key, V1, Comp1> &map, |
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389 | const Value &value = Value()) |
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390 | : _map(map.begin(), map.end()), _value(value) {} |
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391 | |
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392 | /// \brief Constructs the map from another \c SparseMap. |
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393 | template<typename V1, typename Comp1> |
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394 | SparseMap(const SparseMap<Key, V1, Comp1> &c) |
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395 | : _map(c._map.begin(), c._map.end()), _value(c._value) {} |
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396 | |
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397 | private: |
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398 | |
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399 | SparseMap& operator=(const SparseMap&); |
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400 | |
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401 | public: |
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402 | |
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403 | ///\e |
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404 | Reference operator[](const Key &k) { |
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405 | typename Map::iterator it = _map.lower_bound(k); |
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406 | if (it != _map.end() && !_map.key_comp()(k, it->first)) |
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407 | return it->second; |
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408 | else |
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409 | return _map.insert(it, std::make_pair(k, _value))->second; |
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410 | } |
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411 | |
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412 | ///\e |
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413 | ConstReference operator[](const Key &k) const { |
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414 | typename Map::const_iterator it = _map.find(k); |
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415 | if (it != _map.end()) |
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416 | return it->second; |
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417 | else |
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418 | return _value; |
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419 | } |
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420 | |
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421 | ///\e |
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422 | void set(const Key &k, const Value &v) { |
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423 | typename Map::iterator it = _map.lower_bound(k); |
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424 | if (it != _map.end() && !_map.key_comp()(k, it->first)) |
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425 | it->second = v; |
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426 | else |
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427 | _map.insert(it, std::make_pair(k, v)); |
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428 | } |
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429 | |
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430 | ///\e |
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431 | void setAll(const Value &v) { |
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432 | _value = v; |
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433 | _map.clear(); |
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434 | } |
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435 | }; |
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436 | |
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437 | /// Returns a \c SparseMap class |
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438 | |
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439 | /// This function just returns a \c SparseMap class with specified |
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440 | /// default value. |
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441 | /// \relates SparseMap |
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442 | template<typename K, typename V, typename Compare> |
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443 | inline SparseMap<K, V, Compare> sparseMap(const V& value = V()) { |
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444 | return SparseMap<K, V, Compare>(value); |
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445 | } |
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446 | |
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447 | template<typename K, typename V> |
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448 | inline SparseMap<K, V, std::less<K> > sparseMap(const V& value = V()) { |
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449 | return SparseMap<K, V, std::less<K> >(value); |
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450 | } |
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451 | |
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452 | /// \brief Returns a \c SparseMap class created from an appropriate |
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453 | /// \c std::map |
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454 | |
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455 | /// This function just returns a \c SparseMap class created from an |
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456 | /// appropriate \c std::map. |
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457 | /// \relates SparseMap |
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458 | template<typename K, typename V, typename Compare> |
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459 | inline SparseMap<K, V, Compare> |
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460 | sparseMap(const std::map<K, V, Compare> &map, const V& value = V()) |
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461 | { |
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462 | return SparseMap<K, V, Compare>(map, value); |
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463 | } |
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464 | |
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465 | /// @} |
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466 | |
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467 | /// \addtogroup map_adaptors |
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468 | /// @{ |
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469 | |
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470 | /// Composition of two maps |
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471 | |
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472 | /// This \ref concepts::ReadMap "read-only map" returns the |
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473 | /// composition of two given maps. That is to say, if \c m1 is of |
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474 | /// type \c M1 and \c m2 is of \c M2, then for |
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475 | /// \code |
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476 | /// ComposeMap<M1, M2> cm(m1,m2); |
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477 | /// \endcode |
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478 | /// <tt>cm[x]</tt> will be equal to <tt>m1[m2[x]]</tt>. |
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479 | /// |
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480 | /// The \c Key type of the map is inherited from \c M2 and the |
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481 | /// \c Value type is from \c M1. |
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482 | /// \c M2::Value must be convertible to \c M1::Key. |
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483 | /// |
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484 | /// The simplest way of using this map is through the composeMap() |
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485 | /// function. |
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486 | /// |
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487 | /// \sa CombineMap |
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488 | template <typename M1, typename M2> |
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489 | class ComposeMap : public MapBase<typename M2::Key, typename M1::Value> { |
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490 | const M1 &_m1; |
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491 | const M2 &_m2; |
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492 | public: |
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493 | ///\e |
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494 | typedef typename M2::Key Key; |
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495 | ///\e |
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496 | typedef typename M1::Value Value; |
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497 | |
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498 | /// Constructor |
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499 | ComposeMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
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500 | |
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501 | ///\e |
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502 | typename MapTraits<M1>::ConstReturnValue |
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503 | operator[](const Key &k) const { return _m1[_m2[k]]; } |
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504 | }; |
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505 | |
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506 | /// Returns a \c ComposeMap class |
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507 | |
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508 | /// This function just returns a \c ComposeMap class. |
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509 | /// |
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510 | /// If \c m1 and \c m2 are maps and the \c Value type of \c m2 is |
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511 | /// convertible to the \c Key of \c m1, then <tt>composeMap(m1,m2)[x]</tt> |
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512 | /// will be equal to <tt>m1[m2[x]]</tt>. |
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513 | /// |
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514 | /// \relates ComposeMap |
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515 | template <typename M1, typename M2> |
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516 | inline ComposeMap<M1, M2> composeMap(const M1 &m1, const M2 &m2) { |
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517 | return ComposeMap<M1, M2>(m1, m2); |
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518 | } |
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519 | |
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520 | |
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521 | /// Combination of two maps using an STL (binary) functor. |
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522 | |
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523 | /// This \ref concepts::ReadMap "read-only map" takes two maps and a |
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524 | /// binary functor and returns the combination of the two given maps |
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525 | /// using the functor. |
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526 | /// That is to say, if \c m1 is of type \c M1 and \c m2 is of \c M2 |
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527 | /// and \c f is of \c F, then for |
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528 | /// \code |
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529 | /// CombineMap<M1,M2,F,V> cm(m1,m2,f); |
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530 | /// \endcode |
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531 | /// <tt>cm[x]</tt> will be equal to <tt>f(m1[x],m2[x])</tt>. |
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532 | /// |
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533 | /// The \c Key type of the map is inherited from \c M1 (\c M1::Key |
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534 | /// must be convertible to \c M2::Key) and the \c Value type is \c V. |
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535 | /// \c M2::Value and \c M1::Value must be convertible to the |
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536 | /// corresponding input parameter of \c F and the return type of \c F |
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537 | /// must be convertible to \c V. |
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538 | /// |
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539 | /// The simplest way of using this map is through the combineMap() |
---|
540 | /// function. |
---|
541 | /// |
---|
542 | /// \sa ComposeMap |
---|
543 | template<typename M1, typename M2, typename F, |
---|
544 | typename V = typename F::result_type> |
---|
545 | class CombineMap : public MapBase<typename M1::Key, V> { |
---|
546 | const M1 &_m1; |
---|
547 | const M2 &_m2; |
---|
548 | F _f; |
---|
549 | public: |
---|
550 | ///\e |
---|
551 | typedef typename M1::Key Key; |
---|
552 | ///\e |
---|
553 | typedef V Value; |
---|
554 | |
---|
555 | /// Constructor |
---|
556 | CombineMap(const M1 &m1, const M2 &m2, const F &f = F()) |
---|
557 | : _m1(m1), _m2(m2), _f(f) {} |
---|
558 | ///\e |
---|
559 | Value operator[](const Key &k) const { return _f(_m1[k],_m2[k]); } |
---|
560 | }; |
---|
561 | |
---|
562 | /// Returns a \c CombineMap class |
---|
563 | |
---|
564 | /// This function just returns a \c CombineMap class. |
---|
565 | /// |
---|
566 | /// For example, if \c m1 and \c m2 are both maps with \c double |
---|
567 | /// values, then |
---|
568 | /// \code |
---|
569 | /// combineMap(m1,m2,std::plus<double>()) |
---|
570 | /// \endcode |
---|
571 | /// is equivalent to |
---|
572 | /// \code |
---|
573 | /// addMap(m1,m2) |
---|
574 | /// \endcode |
---|
575 | /// |
---|
576 | /// This function is specialized for adaptable binary function |
---|
577 | /// classes and C++ functions. |
---|
578 | /// |
---|
579 | /// \relates CombineMap |
---|
580 | template<typename M1, typename M2, typename F, typename V> |
---|
581 | inline CombineMap<M1, M2, F, V> |
---|
582 | combineMap(const M1 &m1, const M2 &m2, const F &f) { |
---|
583 | return CombineMap<M1, M2, F, V>(m1,m2,f); |
---|
584 | } |
---|
585 | |
---|
586 | template<typename M1, typename M2, typename F> |
---|
587 | inline CombineMap<M1, M2, F, typename F::result_type> |
---|
588 | combineMap(const M1 &m1, const M2 &m2, const F &f) { |
---|
589 | return combineMap<M1, M2, F, typename F::result_type>(m1,m2,f); |
---|
590 | } |
---|
591 | |
---|
592 | template<typename M1, typename M2, typename K1, typename K2, typename V> |
---|
593 | inline CombineMap<M1, M2, V (*)(K1, K2), V> |
---|
594 | combineMap(const M1 &m1, const M2 &m2, V (*f)(K1, K2)) { |
---|
595 | return combineMap<M1, M2, V (*)(K1, K2), V>(m1,m2,f); |
---|
596 | } |
---|
597 | |
---|
598 | |
---|
599 | /// Converts an STL style (unary) functor to a map |
---|
600 | |
---|
601 | /// This \ref concepts::ReadMap "read-only map" returns the value |
---|
602 | /// of a given functor. Actually, it just wraps the functor and |
---|
603 | /// provides the \c Key and \c Value typedefs. |
---|
604 | /// |
---|
605 | /// Template parameters \c K and \c V will become its \c Key and |
---|
606 | /// \c Value. In most cases they have to be given explicitly because |
---|
607 | /// a functor typically does not provide \c argument_type and |
---|
608 | /// \c result_type typedefs. |
---|
609 | /// Parameter \c F is the type of the used functor. |
---|
610 | /// |
---|
611 | /// The simplest way of using this map is through the functorToMap() |
---|
612 | /// function. |
---|
613 | /// |
---|
614 | /// \sa MapToFunctor |
---|
615 | template<typename F, |
---|
616 | typename K = typename F::argument_type, |
---|
617 | typename V = typename F::result_type> |
---|
618 | class FunctorToMap : public MapBase<K, V> { |
---|
619 | F _f; |
---|
620 | public: |
---|
621 | ///\e |
---|
622 | typedef K Key; |
---|
623 | ///\e |
---|
624 | typedef V Value; |
---|
625 | |
---|
626 | /// Constructor |
---|
627 | FunctorToMap(const F &f = F()) : _f(f) {} |
---|
628 | ///\e |
---|
629 | Value operator[](const Key &k) const { return _f(k); } |
---|
630 | }; |
---|
631 | |
---|
632 | /// Returns a \c FunctorToMap class |
---|
633 | |
---|
634 | /// This function just returns a \c FunctorToMap class. |
---|
635 | /// |
---|
636 | /// This function is specialized for adaptable binary function |
---|
637 | /// classes and C++ functions. |
---|
638 | /// |
---|
639 | /// \relates FunctorToMap |
---|
640 | template<typename K, typename V, typename F> |
---|
641 | inline FunctorToMap<F, K, V> functorToMap(const F &f) { |
---|
642 | return FunctorToMap<F, K, V>(f); |
---|
643 | } |
---|
644 | |
---|
645 | template <typename F> |
---|
646 | inline FunctorToMap<F, typename F::argument_type, typename F::result_type> |
---|
647 | functorToMap(const F &f) |
---|
648 | { |
---|
649 | return FunctorToMap<F, typename F::argument_type, |
---|
650 | typename F::result_type>(f); |
---|
651 | } |
---|
652 | |
---|
653 | template <typename K, typename V> |
---|
654 | inline FunctorToMap<V (*)(K), K, V> functorToMap(V (*f)(K)) { |
---|
655 | return FunctorToMap<V (*)(K), K, V>(f); |
---|
656 | } |
---|
657 | |
---|
658 | |
---|
659 | /// Converts a map to an STL style (unary) functor |
---|
660 | |
---|
661 | /// This class converts a map to an STL style (unary) functor. |
---|
662 | /// That is it provides an <tt>operator()</tt> to read its values. |
---|
663 | /// |
---|
664 | /// For the sake of convenience it also works as a usual |
---|
665 | /// \ref concepts::ReadMap "readable map", i.e. <tt>operator[]</tt> |
---|
666 | /// and the \c Key and \c Value typedefs also exist. |
---|
667 | /// |
---|
668 | /// The simplest way of using this map is through the mapToFunctor() |
---|
669 | /// function. |
---|
670 | /// |
---|
671 | ///\sa FunctorToMap |
---|
672 | template <typename M> |
---|
673 | class MapToFunctor : public MapBase<typename M::Key, typename M::Value> { |
---|
674 | const M &_m; |
---|
675 | public: |
---|
676 | ///\e |
---|
677 | typedef typename M::Key Key; |
---|
678 | ///\e |
---|
679 | typedef typename M::Value Value; |
---|
680 | |
---|
681 | typedef typename M::Key argument_type; |
---|
682 | typedef typename M::Value result_type; |
---|
683 | |
---|
684 | /// Constructor |
---|
685 | MapToFunctor(const M &m) : _m(m) {} |
---|
686 | ///\e |
---|
687 | Value operator()(const Key &k) const { return _m[k]; } |
---|
688 | ///\e |
---|
689 | Value operator[](const Key &k) const { return _m[k]; } |
---|
690 | }; |
---|
691 | |
---|
692 | /// Returns a \c MapToFunctor class |
---|
693 | |
---|
694 | /// This function just returns a \c MapToFunctor class. |
---|
695 | /// \relates MapToFunctor |
---|
696 | template<typename M> |
---|
697 | inline MapToFunctor<M> mapToFunctor(const M &m) { |
---|
698 | return MapToFunctor<M>(m); |
---|
699 | } |
---|
700 | |
---|
701 | |
---|
702 | /// \brief Map adaptor to convert the \c Value type of a map to |
---|
703 | /// another type using the default conversion. |
---|
704 | |
---|
705 | /// Map adaptor to convert the \c Value type of a \ref concepts::ReadMap |
---|
706 | /// "readable map" to another type using the default conversion. |
---|
707 | /// The \c Key type of it is inherited from \c M and the \c Value |
---|
708 | /// type is \c V. |
---|
709 | /// This type conforms to the \ref concepts::ReadMap "ReadMap" concept. |
---|
710 | /// |
---|
711 | /// The simplest way of using this map is through the convertMap() |
---|
712 | /// function. |
---|
713 | template <typename M, typename V> |
---|
714 | class ConvertMap : public MapBase<typename M::Key, V> { |
---|
715 | const M &_m; |
---|
716 | public: |
---|
717 | ///\e |
---|
718 | typedef typename M::Key Key; |
---|
719 | ///\e |
---|
720 | typedef V Value; |
---|
721 | |
---|
722 | /// Constructor |
---|
723 | |
---|
724 | /// Constructor. |
---|
725 | /// \param m The underlying map. |
---|
726 | ConvertMap(const M &m) : _m(m) {} |
---|
727 | |
---|
728 | ///\e |
---|
729 | Value operator[](const Key &k) const { return _m[k]; } |
---|
730 | }; |
---|
731 | |
---|
732 | /// Returns a \c ConvertMap class |
---|
733 | |
---|
734 | /// This function just returns a \c ConvertMap class. |
---|
735 | /// \relates ConvertMap |
---|
736 | template<typename V, typename M> |
---|
737 | inline ConvertMap<M, V> convertMap(const M &map) { |
---|
738 | return ConvertMap<M, V>(map); |
---|
739 | } |
---|
740 | |
---|
741 | |
---|
742 | /// Applies all map setting operations to two maps |
---|
743 | |
---|
744 | /// This map has two \ref concepts::WriteMap "writable map" parameters |
---|
745 | /// and each write request will be passed to both of them. |
---|
746 | /// If \c M1 is also \ref concepts::ReadMap "readable", then the read |
---|
747 | /// operations will return the corresponding values of \c M1. |
---|
748 | /// |
---|
749 | /// The \c Key and \c Value types are inherited from \c M1. |
---|
750 | /// The \c Key and \c Value of \c M2 must be convertible from those |
---|
751 | /// of \c M1. |
---|
752 | /// |
---|
753 | /// The simplest way of using this map is through the forkMap() |
---|
754 | /// function. |
---|
755 | template<typename M1, typename M2> |
---|
756 | class ForkMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
757 | M1 &_m1; |
---|
758 | M2 &_m2; |
---|
759 | public: |
---|
760 | ///\e |
---|
761 | typedef typename M1::Key Key; |
---|
762 | ///\e |
---|
763 | typedef typename M1::Value Value; |
---|
764 | |
---|
765 | /// Constructor |
---|
766 | ForkMap(M1 &m1, M2 &m2) : _m1(m1), _m2(m2) {} |
---|
767 | /// Returns the value associated with the given key in the first map. |
---|
768 | Value operator[](const Key &k) const { return _m1[k]; } |
---|
769 | /// Sets the value associated with the given key in both maps. |
---|
770 | void set(const Key &k, const Value &v) { _m1.set(k,v); _m2.set(k,v); } |
---|
771 | }; |
---|
772 | |
---|
773 | /// Returns a \c ForkMap class |
---|
774 | |
---|
775 | /// This function just returns a \c ForkMap class. |
---|
776 | /// \relates ForkMap |
---|
777 | template <typename M1, typename M2> |
---|
778 | inline ForkMap<M1,M2> forkMap(M1 &m1, M2 &m2) { |
---|
779 | return ForkMap<M1,M2>(m1,m2); |
---|
780 | } |
---|
781 | |
---|
782 | |
---|
783 | /// Sum of two maps |
---|
784 | |
---|
785 | /// This \ref concepts::ReadMap "read-only map" returns the sum |
---|
786 | /// of the values of the two given maps. |
---|
787 | /// Its \c Key and \c Value types are inherited from \c M1. |
---|
788 | /// The \c Key and \c Value of \c M2 must be convertible to those of |
---|
789 | /// \c M1. |
---|
790 | /// |
---|
791 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
792 | /// \code |
---|
793 | /// AddMap<M1,M2> am(m1,m2); |
---|
794 | /// \endcode |
---|
795 | /// <tt>am[x]</tt> will be equal to <tt>m1[x]+m2[x]</tt>. |
---|
796 | /// |
---|
797 | /// The simplest way of using this map is through the addMap() |
---|
798 | /// function. |
---|
799 | /// |
---|
800 | /// \sa SubMap, MulMap, DivMap |
---|
801 | /// \sa ShiftMap, ShiftWriteMap |
---|
802 | template<typename M1, typename M2> |
---|
803 | class AddMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
804 | const M1 &_m1; |
---|
805 | const M2 &_m2; |
---|
806 | public: |
---|
807 | ///\e |
---|
808 | typedef typename M1::Key Key; |
---|
809 | ///\e |
---|
810 | typedef typename M1::Value Value; |
---|
811 | |
---|
812 | /// Constructor |
---|
813 | AddMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
814 | ///\e |
---|
815 | Value operator[](const Key &k) const { return _m1[k]+_m2[k]; } |
---|
816 | }; |
---|
817 | |
---|
818 | /// Returns an \c AddMap class |
---|
819 | |
---|
820 | /// This function just returns an \c AddMap class. |
---|
821 | /// |
---|
822 | /// For example, if \c m1 and \c m2 are both maps with \c double |
---|
823 | /// values, then <tt>addMap(m1,m2)[x]</tt> will be equal to |
---|
824 | /// <tt>m1[x]+m2[x]</tt>. |
---|
825 | /// |
---|
826 | /// \relates AddMap |
---|
827 | template<typename M1, typename M2> |
---|
828 | inline AddMap<M1, M2> addMap(const M1 &m1, const M2 &m2) { |
---|
829 | return AddMap<M1, M2>(m1,m2); |
---|
830 | } |
---|
831 | |
---|
832 | |
---|
833 | /// Difference of two maps |
---|
834 | |
---|
835 | /// This \ref concepts::ReadMap "read-only map" returns the difference |
---|
836 | /// of the values of the two given maps. |
---|
837 | /// Its \c Key and \c Value types are inherited from \c M1. |
---|
838 | /// The \c Key and \c Value of \c M2 must be convertible to those of |
---|
839 | /// \c M1. |
---|
840 | /// |
---|
841 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
842 | /// \code |
---|
843 | /// SubMap<M1,M2> sm(m1,m2); |
---|
844 | /// \endcode |
---|
845 | /// <tt>sm[x]</tt> will be equal to <tt>m1[x]-m2[x]</tt>. |
---|
846 | /// |
---|
847 | /// The simplest way of using this map is through the subMap() |
---|
848 | /// function. |
---|
849 | /// |
---|
850 | /// \sa AddMap, MulMap, DivMap |
---|
851 | template<typename M1, typename M2> |
---|
852 | class SubMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
853 | const M1 &_m1; |
---|
854 | const M2 &_m2; |
---|
855 | public: |
---|
856 | ///\e |
---|
857 | typedef typename M1::Key Key; |
---|
858 | ///\e |
---|
859 | typedef typename M1::Value Value; |
---|
860 | |
---|
861 | /// Constructor |
---|
862 | SubMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
863 | ///\e |
---|
864 | Value operator[](const Key &k) const { return _m1[k]-_m2[k]; } |
---|
865 | }; |
---|
866 | |
---|
867 | /// Returns a \c SubMap class |
---|
868 | |
---|
869 | /// This function just returns a \c SubMap class. |
---|
870 | /// |
---|
871 | /// For example, if \c m1 and \c m2 are both maps with \c double |
---|
872 | /// values, then <tt>subMap(m1,m2)[x]</tt> will be equal to |
---|
873 | /// <tt>m1[x]-m2[x]</tt>. |
---|
874 | /// |
---|
875 | /// \relates SubMap |
---|
876 | template<typename M1, typename M2> |
---|
877 | inline SubMap<M1, M2> subMap(const M1 &m1, const M2 &m2) { |
---|
878 | return SubMap<M1, M2>(m1,m2); |
---|
879 | } |
---|
880 | |
---|
881 | |
---|
882 | /// Product of two maps |
---|
883 | |
---|
884 | /// This \ref concepts::ReadMap "read-only map" returns the product |
---|
885 | /// of the values of the two given maps. |
---|
886 | /// Its \c Key and \c Value types are inherited from \c M1. |
---|
887 | /// The \c Key and \c Value of \c M2 must be convertible to those of |
---|
888 | /// \c M1. |
---|
889 | /// |
---|
890 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
891 | /// \code |
---|
892 | /// MulMap<M1,M2> mm(m1,m2); |
---|
893 | /// \endcode |
---|
894 | /// <tt>mm[x]</tt> will be equal to <tt>m1[x]*m2[x]</tt>. |
---|
895 | /// |
---|
896 | /// The simplest way of using this map is through the mulMap() |
---|
897 | /// function. |
---|
898 | /// |
---|
899 | /// \sa AddMap, SubMap, DivMap |
---|
900 | /// \sa ScaleMap, ScaleWriteMap |
---|
901 | template<typename M1, typename M2> |
---|
902 | class MulMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
903 | const M1 &_m1; |
---|
904 | const M2 &_m2; |
---|
905 | public: |
---|
906 | ///\e |
---|
907 | typedef typename M1::Key Key; |
---|
908 | ///\e |
---|
909 | typedef typename M1::Value Value; |
---|
910 | |
---|
911 | /// Constructor |
---|
912 | MulMap(const M1 &m1,const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
913 | ///\e |
---|
914 | Value operator[](const Key &k) const { return _m1[k]*_m2[k]; } |
---|
915 | }; |
---|
916 | |
---|
917 | /// Returns a \c MulMap class |
---|
918 | |
---|
919 | /// This function just returns a \c MulMap class. |
---|
920 | /// |
---|
921 | /// For example, if \c m1 and \c m2 are both maps with \c double |
---|
922 | /// values, then <tt>mulMap(m1,m2)[x]</tt> will be equal to |
---|
923 | /// <tt>m1[x]*m2[x]</tt>. |
---|
924 | /// |
---|
925 | /// \relates MulMap |
---|
926 | template<typename M1, typename M2> |
---|
927 | inline MulMap<M1, M2> mulMap(const M1 &m1,const M2 &m2) { |
---|
928 | return MulMap<M1, M2>(m1,m2); |
---|
929 | } |
---|
930 | |
---|
931 | |
---|
932 | /// Quotient of two maps |
---|
933 | |
---|
934 | /// This \ref concepts::ReadMap "read-only map" returns the quotient |
---|
935 | /// of the values of the two given maps. |
---|
936 | /// Its \c Key and \c Value types are inherited from \c M1. |
---|
937 | /// The \c Key and \c Value of \c M2 must be convertible to those of |
---|
938 | /// \c M1. |
---|
939 | /// |
---|
940 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
941 | /// \code |
---|
942 | /// DivMap<M1,M2> dm(m1,m2); |
---|
943 | /// \endcode |
---|
944 | /// <tt>dm[x]</tt> will be equal to <tt>m1[x]/m2[x]</tt>. |
---|
945 | /// |
---|
946 | /// The simplest way of using this map is through the divMap() |
---|
947 | /// function. |
---|
948 | /// |
---|
949 | /// \sa AddMap, SubMap, MulMap |
---|
950 | template<typename M1, typename M2> |
---|
951 | class DivMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
952 | const M1 &_m1; |
---|
953 | const M2 &_m2; |
---|
954 | public: |
---|
955 | ///\e |
---|
956 | typedef typename M1::Key Key; |
---|
957 | ///\e |
---|
958 | typedef typename M1::Value Value; |
---|
959 | |
---|
960 | /// Constructor |
---|
961 | DivMap(const M1 &m1,const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
962 | ///\e |
---|
963 | Value operator[](const Key &k) const { return _m1[k]/_m2[k]; } |
---|
964 | }; |
---|
965 | |
---|
966 | /// Returns a \c DivMap class |
---|
967 | |
---|
968 | /// This function just returns a \c DivMap class. |
---|
969 | /// |
---|
970 | /// For example, if \c m1 and \c m2 are both maps with \c double |
---|
971 | /// values, then <tt>divMap(m1,m2)[x]</tt> will be equal to |
---|
972 | /// <tt>m1[x]/m2[x]</tt>. |
---|
973 | /// |
---|
974 | /// \relates DivMap |
---|
975 | template<typename M1, typename M2> |
---|
976 | inline DivMap<M1, M2> divMap(const M1 &m1,const M2 &m2) { |
---|
977 | return DivMap<M1, M2>(m1,m2); |
---|
978 | } |
---|
979 | |
---|
980 | |
---|
981 | /// Shifts a map with a constant. |
---|
982 | |
---|
983 | /// This \ref concepts::ReadMap "read-only map" returns the sum of |
---|
984 | /// the given map and a constant value (i.e. it shifts the map with |
---|
985 | /// the constant). Its \c Key and \c Value are inherited from \c M. |
---|
986 | /// |
---|
987 | /// Actually, |
---|
988 | /// \code |
---|
989 | /// ShiftMap<M> sh(m,v); |
---|
990 | /// \endcode |
---|
991 | /// is equivalent to |
---|
992 | /// \code |
---|
993 | /// ConstMap<M::Key, M::Value> cm(v); |
---|
994 | /// AddMap<M, ConstMap<M::Key, M::Value> > sh(m,cm); |
---|
995 | /// \endcode |
---|
996 | /// |
---|
997 | /// The simplest way of using this map is through the shiftMap() |
---|
998 | /// function. |
---|
999 | /// |
---|
1000 | /// \sa ShiftWriteMap |
---|
1001 | template<typename M, typename C = typename M::Value> |
---|
1002 | class ShiftMap : public MapBase<typename M::Key, typename M::Value> { |
---|
1003 | const M &_m; |
---|
1004 | C _v; |
---|
1005 | public: |
---|
1006 | ///\e |
---|
1007 | typedef typename M::Key Key; |
---|
1008 | ///\e |
---|
1009 | typedef typename M::Value Value; |
---|
1010 | |
---|
1011 | /// Constructor |
---|
1012 | |
---|
1013 | /// Constructor. |
---|
1014 | /// \param m The undelying map. |
---|
1015 | /// \param v The constant value. |
---|
1016 | ShiftMap(const M &m, const C &v) : _m(m), _v(v) {} |
---|
1017 | ///\e |
---|
1018 | Value operator[](const Key &k) const { return _m[k]+_v; } |
---|
1019 | }; |
---|
1020 | |
---|
1021 | /// Shifts a map with a constant (read-write version). |
---|
1022 | |
---|
1023 | /// This \ref concepts::ReadWriteMap "read-write map" returns the sum |
---|
1024 | /// of the given map and a constant value (i.e. it shifts the map with |
---|
1025 | /// the constant). Its \c Key and \c Value are inherited from \c M. |
---|
1026 | /// It makes also possible to write the map. |
---|
1027 | /// |
---|
1028 | /// The simplest way of using this map is through the shiftWriteMap() |
---|
1029 | /// function. |
---|
1030 | /// |
---|
1031 | /// \sa ShiftMap |
---|
1032 | template<typename M, typename C = typename M::Value> |
---|
1033 | class ShiftWriteMap : public MapBase<typename M::Key, typename M::Value> { |
---|
1034 | M &_m; |
---|
1035 | C _v; |
---|
1036 | public: |
---|
1037 | ///\e |
---|
1038 | typedef typename M::Key Key; |
---|
1039 | ///\e |
---|
1040 | typedef typename M::Value Value; |
---|
1041 | |
---|
1042 | /// Constructor |
---|
1043 | |
---|
1044 | /// Constructor. |
---|
1045 | /// \param m The undelying map. |
---|
1046 | /// \param v The constant value. |
---|
1047 | ShiftWriteMap(M &m, const C &v) : _m(m), _v(v) {} |
---|
1048 | ///\e |
---|
1049 | Value operator[](const Key &k) const { return _m[k]+_v; } |
---|
1050 | ///\e |
---|
1051 | void set(const Key &k, const Value &v) { _m.set(k, v-_v); } |
---|
1052 | }; |
---|
1053 | |
---|
1054 | /// Returns a \c ShiftMap class |
---|
1055 | |
---|
1056 | /// This function just returns a \c ShiftMap class. |
---|
1057 | /// |
---|
1058 | /// For example, if \c m is a map with \c double values and \c v is |
---|
1059 | /// \c double, then <tt>shiftMap(m,v)[x]</tt> will be equal to |
---|
1060 | /// <tt>m[x]+v</tt>. |
---|
1061 | /// |
---|
1062 | /// \relates ShiftMap |
---|
1063 | template<typename M, typename C> |
---|
1064 | inline ShiftMap<M, C> shiftMap(const M &m, const C &v) { |
---|
1065 | return ShiftMap<M, C>(m,v); |
---|
1066 | } |
---|
1067 | |
---|
1068 | /// Returns a \c ShiftWriteMap class |
---|
1069 | |
---|
1070 | /// This function just returns a \c ShiftWriteMap class. |
---|
1071 | /// |
---|
1072 | /// For example, if \c m is a map with \c double values and \c v is |
---|
1073 | /// \c double, then <tt>shiftWriteMap(m,v)[x]</tt> will be equal to |
---|
1074 | /// <tt>m[x]+v</tt>. |
---|
1075 | /// Moreover it makes also possible to write the map. |
---|
1076 | /// |
---|
1077 | /// \relates ShiftWriteMap |
---|
1078 | template<typename M, typename C> |
---|
1079 | inline ShiftWriteMap<M, C> shiftWriteMap(M &m, const C &v) { |
---|
1080 | return ShiftWriteMap<M, C>(m,v); |
---|
1081 | } |
---|
1082 | |
---|
1083 | |
---|
1084 | /// Scales a map with a constant. |
---|
1085 | |
---|
1086 | /// This \ref concepts::ReadMap "read-only map" returns the value of |
---|
1087 | /// the given map multiplied from the left side with a constant value. |
---|
1088 | /// Its \c Key and \c Value are inherited from \c M. |
---|
1089 | /// |
---|
1090 | /// Actually, |
---|
1091 | /// \code |
---|
1092 | /// ScaleMap<M> sc(m,v); |
---|
1093 | /// \endcode |
---|
1094 | /// is equivalent to |
---|
1095 | /// \code |
---|
1096 | /// ConstMap<M::Key, M::Value> cm(v); |
---|
1097 | /// MulMap<ConstMap<M::Key, M::Value>, M> sc(cm,m); |
---|
1098 | /// \endcode |
---|
1099 | /// |
---|
1100 | /// The simplest way of using this map is through the scaleMap() |
---|
1101 | /// function. |
---|
1102 | /// |
---|
1103 | /// \sa ScaleWriteMap |
---|
1104 | template<typename M, typename C = typename M::Value> |
---|
1105 | class ScaleMap : public MapBase<typename M::Key, typename M::Value> { |
---|
1106 | const M &_m; |
---|
1107 | C _v; |
---|
1108 | public: |
---|
1109 | ///\e |
---|
1110 | typedef typename M::Key Key; |
---|
1111 | ///\e |
---|
1112 | typedef typename M::Value Value; |
---|
1113 | |
---|
1114 | /// Constructor |
---|
1115 | |
---|
1116 | /// Constructor. |
---|
1117 | /// \param m The undelying map. |
---|
1118 | /// \param v The constant value. |
---|
1119 | ScaleMap(const M &m, const C &v) : _m(m), _v(v) {} |
---|
1120 | ///\e |
---|
1121 | Value operator[](const Key &k) const { return _v*_m[k]; } |
---|
1122 | }; |
---|
1123 | |
---|
1124 | /// Scales a map with a constant (read-write version). |
---|
1125 | |
---|
1126 | /// This \ref concepts::ReadWriteMap "read-write map" returns the value of |
---|
1127 | /// the given map multiplied from the left side with a constant value. |
---|
1128 | /// Its \c Key and \c Value are inherited from \c M. |
---|
1129 | /// It can also be used as write map if the \c / operator is defined |
---|
1130 | /// between \c Value and \c C and the given multiplier is not zero. |
---|
1131 | /// |
---|
1132 | /// The simplest way of using this map is through the scaleWriteMap() |
---|
1133 | /// function. |
---|
1134 | /// |
---|
1135 | /// \sa ScaleMap |
---|
1136 | template<typename M, typename C = typename M::Value> |
---|
1137 | class ScaleWriteMap : public MapBase<typename M::Key, typename M::Value> { |
---|
1138 | M &_m; |
---|
1139 | C _v; |
---|
1140 | public: |
---|
1141 | ///\e |
---|
1142 | typedef typename M::Key Key; |
---|
1143 | ///\e |
---|
1144 | typedef typename M::Value Value; |
---|
1145 | |
---|
1146 | /// Constructor |
---|
1147 | |
---|
1148 | /// Constructor. |
---|
1149 | /// \param m The undelying map. |
---|
1150 | /// \param v The constant value. |
---|
1151 | ScaleWriteMap(M &m, const C &v) : _m(m), _v(v) {} |
---|
1152 | ///\e |
---|
1153 | Value operator[](const Key &k) const { return _v*_m[k]; } |
---|
1154 | ///\e |
---|
1155 | void set(const Key &k, const Value &v) { _m.set(k, v/_v); } |
---|
1156 | }; |
---|
1157 | |
---|
1158 | /// Returns a \c ScaleMap class |
---|
1159 | |
---|
1160 | /// This function just returns a \c ScaleMap class. |
---|
1161 | /// |
---|
1162 | /// For example, if \c m is a map with \c double values and \c v is |
---|
1163 | /// \c double, then <tt>scaleMap(m,v)[x]</tt> will be equal to |
---|
1164 | /// <tt>v*m[x]</tt>. |
---|
1165 | /// |
---|
1166 | /// \relates ScaleMap |
---|
1167 | template<typename M, typename C> |
---|
1168 | inline ScaleMap<M, C> scaleMap(const M &m, const C &v) { |
---|
1169 | return ScaleMap<M, C>(m,v); |
---|
1170 | } |
---|
1171 | |
---|
1172 | /// Returns a \c ScaleWriteMap class |
---|
1173 | |
---|
1174 | /// This function just returns a \c ScaleWriteMap class. |
---|
1175 | /// |
---|
1176 | /// For example, if \c m is a map with \c double values and \c v is |
---|
1177 | /// \c double, then <tt>scaleWriteMap(m,v)[x]</tt> will be equal to |
---|
1178 | /// <tt>v*m[x]</tt>. |
---|
1179 | /// Moreover it makes also possible to write the map. |
---|
1180 | /// |
---|
1181 | /// \relates ScaleWriteMap |
---|
1182 | template<typename M, typename C> |
---|
1183 | inline ScaleWriteMap<M, C> scaleWriteMap(M &m, const C &v) { |
---|
1184 | return ScaleWriteMap<M, C>(m,v); |
---|
1185 | } |
---|
1186 | |
---|
1187 | |
---|
1188 | /// Negative of a map |
---|
1189 | |
---|
1190 | /// This \ref concepts::ReadMap "read-only map" returns the negative |
---|
1191 | /// of the values of the given map (using the unary \c - operator). |
---|
1192 | /// Its \c Key and \c Value are inherited from \c M. |
---|
1193 | /// |
---|
1194 | /// If M::Value is \c int, \c double etc., then |
---|
1195 | /// \code |
---|
1196 | /// NegMap<M> neg(m); |
---|
1197 | /// \endcode |
---|
1198 | /// is equivalent to |
---|
1199 | /// \code |
---|
1200 | /// ScaleMap<M> neg(m,-1); |
---|
1201 | /// \endcode |
---|
1202 | /// |
---|
1203 | /// The simplest way of using this map is through the negMap() |
---|
1204 | /// function. |
---|
1205 | /// |
---|
1206 | /// \sa NegWriteMap |
---|
1207 | template<typename M> |
---|
1208 | class NegMap : public MapBase<typename M::Key, typename M::Value> { |
---|
1209 | const M& _m; |
---|
1210 | public: |
---|
1211 | ///\e |
---|
1212 | typedef typename M::Key Key; |
---|
1213 | ///\e |
---|
1214 | typedef typename M::Value Value; |
---|
1215 | |
---|
1216 | /// Constructor |
---|
1217 | NegMap(const M &m) : _m(m) {} |
---|
1218 | ///\e |
---|
1219 | Value operator[](const Key &k) const { return -_m[k]; } |
---|
1220 | }; |
---|
1221 | |
---|
1222 | /// Negative of a map (read-write version) |
---|
1223 | |
---|
1224 | /// This \ref concepts::ReadWriteMap "read-write map" returns the |
---|
1225 | /// negative of the values of the given map (using the unary \c - |
---|
1226 | /// operator). |
---|
1227 | /// Its \c Key and \c Value are inherited from \c M. |
---|
1228 | /// It makes also possible to write the map. |
---|
1229 | /// |
---|
1230 | /// If M::Value is \c int, \c double etc., then |
---|
1231 | /// \code |
---|
1232 | /// NegWriteMap<M> neg(m); |
---|
1233 | /// \endcode |
---|
1234 | /// is equivalent to |
---|
1235 | /// \code |
---|
1236 | /// ScaleWriteMap<M> neg(m,-1); |
---|
1237 | /// \endcode |
---|
1238 | /// |
---|
1239 | /// The simplest way of using this map is through the negWriteMap() |
---|
1240 | /// function. |
---|
1241 | /// |
---|
1242 | /// \sa NegMap |
---|
1243 | template<typename M> |
---|
1244 | class NegWriteMap : public MapBase<typename M::Key, typename M::Value> { |
---|
1245 | M &_m; |
---|
1246 | public: |
---|
1247 | ///\e |
---|
1248 | typedef typename M::Key Key; |
---|
1249 | ///\e |
---|
1250 | typedef typename M::Value Value; |
---|
1251 | |
---|
1252 | /// Constructor |
---|
1253 | NegWriteMap(M &m) : _m(m) {} |
---|
1254 | ///\e |
---|
1255 | Value operator[](const Key &k) const { return -_m[k]; } |
---|
1256 | ///\e |
---|
1257 | void set(const Key &k, const Value &v) { _m.set(k, -v); } |
---|
1258 | }; |
---|
1259 | |
---|
1260 | /// Returns a \c NegMap class |
---|
1261 | |
---|
1262 | /// This function just returns a \c NegMap class. |
---|
1263 | /// |
---|
1264 | /// For example, if \c m is a map with \c double values, then |
---|
1265 | /// <tt>negMap(m)[x]</tt> will be equal to <tt>-m[x]</tt>. |
---|
1266 | /// |
---|
1267 | /// \relates NegMap |
---|
1268 | template <typename M> |
---|
1269 | inline NegMap<M> negMap(const M &m) { |
---|
1270 | return NegMap<M>(m); |
---|
1271 | } |
---|
1272 | |
---|
1273 | /// Returns a \c NegWriteMap class |
---|
1274 | |
---|
1275 | /// This function just returns a \c NegWriteMap class. |
---|
1276 | /// |
---|
1277 | /// For example, if \c m is a map with \c double values, then |
---|
1278 | /// <tt>negWriteMap(m)[x]</tt> will be equal to <tt>-m[x]</tt>. |
---|
1279 | /// Moreover it makes also possible to write the map. |
---|
1280 | /// |
---|
1281 | /// \relates NegWriteMap |
---|
1282 | template <typename M> |
---|
1283 | inline NegWriteMap<M> negWriteMap(M &m) { |
---|
1284 | return NegWriteMap<M>(m); |
---|
1285 | } |
---|
1286 | |
---|
1287 | |
---|
1288 | /// Absolute value of a map |
---|
1289 | |
---|
1290 | /// This \ref concepts::ReadMap "read-only map" returns the absolute |
---|
1291 | /// value of the values of the given map. |
---|
1292 | /// Its \c Key and \c Value are inherited from \c M. |
---|
1293 | /// \c Value must be comparable to \c 0 and the unary \c - |
---|
1294 | /// operator must be defined for it, of course. |
---|
1295 | /// |
---|
1296 | /// The simplest way of using this map is through the absMap() |
---|
1297 | /// function. |
---|
1298 | template<typename M> |
---|
1299 | class AbsMap : public MapBase<typename M::Key, typename M::Value> { |
---|
1300 | const M &_m; |
---|
1301 | public: |
---|
1302 | ///\e |
---|
1303 | typedef typename M::Key Key; |
---|
1304 | ///\e |
---|
1305 | typedef typename M::Value Value; |
---|
1306 | |
---|
1307 | /// Constructor |
---|
1308 | AbsMap(const M &m) : _m(m) {} |
---|
1309 | ///\e |
---|
1310 | Value operator[](const Key &k) const { |
---|
1311 | Value tmp = _m[k]; |
---|
1312 | return tmp >= 0 ? tmp : -tmp; |
---|
1313 | } |
---|
1314 | |
---|
1315 | }; |
---|
1316 | |
---|
1317 | /// Returns an \c AbsMap class |
---|
1318 | |
---|
1319 | /// This function just returns an \c AbsMap class. |
---|
1320 | /// |
---|
1321 | /// For example, if \c m is a map with \c double values, then |
---|
1322 | /// <tt>absMap(m)[x]</tt> will be equal to <tt>m[x]</tt> if |
---|
1323 | /// it is positive or zero and <tt>-m[x]</tt> if <tt>m[x]</tt> is |
---|
1324 | /// negative. |
---|
1325 | /// |
---|
1326 | /// \relates AbsMap |
---|
1327 | template<typename M> |
---|
1328 | inline AbsMap<M> absMap(const M &m) { |
---|
1329 | return AbsMap<M>(m); |
---|
1330 | } |
---|
1331 | |
---|
1332 | /// @} |
---|
1333 | |
---|
1334 | // Logical maps and map adaptors: |
---|
1335 | |
---|
1336 | /// \addtogroup maps |
---|
1337 | /// @{ |
---|
1338 | |
---|
1339 | /// Constant \c true map. |
---|
1340 | |
---|
1341 | /// This \ref concepts::ReadMap "read-only map" assigns \c true to |
---|
1342 | /// each key. |
---|
1343 | /// |
---|
1344 | /// Note that |
---|
1345 | /// \code |
---|
1346 | /// TrueMap<K> tm; |
---|
1347 | /// \endcode |
---|
1348 | /// is equivalent to |
---|
1349 | /// \code |
---|
1350 | /// ConstMap<K,bool> tm(true); |
---|
1351 | /// \endcode |
---|
1352 | /// |
---|
1353 | /// \sa FalseMap |
---|
1354 | /// \sa ConstMap |
---|
1355 | template <typename K> |
---|
1356 | class TrueMap : public MapBase<K, bool> { |
---|
1357 | public: |
---|
1358 | ///\e |
---|
1359 | typedef K Key; |
---|
1360 | ///\e |
---|
1361 | typedef bool Value; |
---|
1362 | |
---|
1363 | /// Gives back \c true. |
---|
1364 | Value operator[](const Key&) const { return true; } |
---|
1365 | }; |
---|
1366 | |
---|
1367 | /// Returns a \c TrueMap class |
---|
1368 | |
---|
1369 | /// This function just returns a \c TrueMap class. |
---|
1370 | /// \relates TrueMap |
---|
1371 | template<typename K> |
---|
1372 | inline TrueMap<K> trueMap() { |
---|
1373 | return TrueMap<K>(); |
---|
1374 | } |
---|
1375 | |
---|
1376 | |
---|
1377 | /// Constant \c false map. |
---|
1378 | |
---|
1379 | /// This \ref concepts::ReadMap "read-only map" assigns \c false to |
---|
1380 | /// each key. |
---|
1381 | /// |
---|
1382 | /// Note that |
---|
1383 | /// \code |
---|
1384 | /// FalseMap<K> fm; |
---|
1385 | /// \endcode |
---|
1386 | /// is equivalent to |
---|
1387 | /// \code |
---|
1388 | /// ConstMap<K,bool> fm(false); |
---|
1389 | /// \endcode |
---|
1390 | /// |
---|
1391 | /// \sa TrueMap |
---|
1392 | /// \sa ConstMap |
---|
1393 | template <typename K> |
---|
1394 | class FalseMap : public MapBase<K, bool> { |
---|
1395 | public: |
---|
1396 | ///\e |
---|
1397 | typedef K Key; |
---|
1398 | ///\e |
---|
1399 | typedef bool Value; |
---|
1400 | |
---|
1401 | /// Gives back \c false. |
---|
1402 | Value operator[](const Key&) const { return false; } |
---|
1403 | }; |
---|
1404 | |
---|
1405 | /// Returns a \c FalseMap class |
---|
1406 | |
---|
1407 | /// This function just returns a \c FalseMap class. |
---|
1408 | /// \relates FalseMap |
---|
1409 | template<typename K> |
---|
1410 | inline FalseMap<K> falseMap() { |
---|
1411 | return FalseMap<K>(); |
---|
1412 | } |
---|
1413 | |
---|
1414 | /// @} |
---|
1415 | |
---|
1416 | /// \addtogroup map_adaptors |
---|
1417 | /// @{ |
---|
1418 | |
---|
1419 | /// Logical 'and' of two maps |
---|
1420 | |
---|
1421 | /// This \ref concepts::ReadMap "read-only map" returns the logical |
---|
1422 | /// 'and' of the values of the two given maps. |
---|
1423 | /// Its \c Key type is inherited from \c M1 and its \c Value type is |
---|
1424 | /// \c bool. \c M2::Key must be convertible to \c M1::Key. |
---|
1425 | /// |
---|
1426 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
1427 | /// \code |
---|
1428 | /// AndMap<M1,M2> am(m1,m2); |
---|
1429 | /// \endcode |
---|
1430 | /// <tt>am[x]</tt> will be equal to <tt>m1[x]&&m2[x]</tt>. |
---|
1431 | /// |
---|
1432 | /// The simplest way of using this map is through the andMap() |
---|
1433 | /// function. |
---|
1434 | /// |
---|
1435 | /// \sa OrMap |
---|
1436 | /// \sa NotMap, NotWriteMap |
---|
1437 | template<typename M1, typename M2> |
---|
1438 | class AndMap : public MapBase<typename M1::Key, bool> { |
---|
1439 | const M1 &_m1; |
---|
1440 | const M2 &_m2; |
---|
1441 | public: |
---|
1442 | ///\e |
---|
1443 | typedef typename M1::Key Key; |
---|
1444 | ///\e |
---|
1445 | typedef bool Value; |
---|
1446 | |
---|
1447 | /// Constructor |
---|
1448 | AndMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
1449 | ///\e |
---|
1450 | Value operator[](const Key &k) const { return _m1[k]&&_m2[k]; } |
---|
1451 | }; |
---|
1452 | |
---|
1453 | /// Returns an \c AndMap class |
---|
1454 | |
---|
1455 | /// This function just returns an \c AndMap class. |
---|
1456 | /// |
---|
1457 | /// For example, if \c m1 and \c m2 are both maps with \c bool values, |
---|
1458 | /// then <tt>andMap(m1,m2)[x]</tt> will be equal to |
---|
1459 | /// <tt>m1[x]&&m2[x]</tt>. |
---|
1460 | /// |
---|
1461 | /// \relates AndMap |
---|
1462 | template<typename M1, typename M2> |
---|
1463 | inline AndMap<M1, M2> andMap(const M1 &m1, const M2 &m2) { |
---|
1464 | return AndMap<M1, M2>(m1,m2); |
---|
1465 | } |
---|
1466 | |
---|
1467 | |
---|
1468 | /// Logical 'or' of two maps |
---|
1469 | |
---|
1470 | /// This \ref concepts::ReadMap "read-only map" returns the logical |
---|
1471 | /// 'or' of the values of the two given maps. |
---|
1472 | /// Its \c Key type is inherited from \c M1 and its \c Value type is |
---|
1473 | /// \c bool. \c M2::Key must be convertible to \c M1::Key. |
---|
1474 | /// |
---|
1475 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
1476 | /// \code |
---|
1477 | /// OrMap<M1,M2> om(m1,m2); |
---|
1478 | /// \endcode |
---|
1479 | /// <tt>om[x]</tt> will be equal to <tt>m1[x]||m2[x]</tt>. |
---|
1480 | /// |
---|
1481 | /// The simplest way of using this map is through the orMap() |
---|
1482 | /// function. |
---|
1483 | /// |
---|
1484 | /// \sa AndMap |
---|
1485 | /// \sa NotMap, NotWriteMap |
---|
1486 | template<typename M1, typename M2> |
---|
1487 | class OrMap : public MapBase<typename M1::Key, bool> { |
---|
1488 | const M1 &_m1; |
---|
1489 | const M2 &_m2; |
---|
1490 | public: |
---|
1491 | ///\e |
---|
1492 | typedef typename M1::Key Key; |
---|
1493 | ///\e |
---|
1494 | typedef bool Value; |
---|
1495 | |
---|
1496 | /// Constructor |
---|
1497 | OrMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
1498 | ///\e |
---|
1499 | Value operator[](const Key &k) const { return _m1[k]||_m2[k]; } |
---|
1500 | }; |
---|
1501 | |
---|
1502 | /// Returns an \c OrMap class |
---|
1503 | |
---|
1504 | /// This function just returns an \c OrMap class. |
---|
1505 | /// |
---|
1506 | /// For example, if \c m1 and \c m2 are both maps with \c bool values, |
---|
1507 | /// then <tt>orMap(m1,m2)[x]</tt> will be equal to |
---|
1508 | /// <tt>m1[x]||m2[x]</tt>. |
---|
1509 | /// |
---|
1510 | /// \relates OrMap |
---|
1511 | template<typename M1, typename M2> |
---|
1512 | inline OrMap<M1, M2> orMap(const M1 &m1, const M2 &m2) { |
---|
1513 | return OrMap<M1, M2>(m1,m2); |
---|
1514 | } |
---|
1515 | |
---|
1516 | |
---|
1517 | /// Logical 'not' of a map |
---|
1518 | |
---|
1519 | /// This \ref concepts::ReadMap "read-only map" returns the logical |
---|
1520 | /// negation of the values of the given map. |
---|
1521 | /// Its \c Key is inherited from \c M and its \c Value is \c bool. |
---|
1522 | /// |
---|
1523 | /// The simplest way of using this map is through the notMap() |
---|
1524 | /// function. |
---|
1525 | /// |
---|
1526 | /// \sa NotWriteMap |
---|
1527 | template <typename M> |
---|
1528 | class NotMap : public MapBase<typename M::Key, bool> { |
---|
1529 | const M &_m; |
---|
1530 | public: |
---|
1531 | ///\e |
---|
1532 | typedef typename M::Key Key; |
---|
1533 | ///\e |
---|
1534 | typedef bool Value; |
---|
1535 | |
---|
1536 | /// Constructor |
---|
1537 | NotMap(const M &m) : _m(m) {} |
---|
1538 | ///\e |
---|
1539 | Value operator[](const Key &k) const { return !_m[k]; } |
---|
1540 | }; |
---|
1541 | |
---|
1542 | /// Logical 'not' of a map (read-write version) |
---|
1543 | |
---|
1544 | /// This \ref concepts::ReadWriteMap "read-write map" returns the |
---|
1545 | /// logical negation of the values of the given map. |
---|
1546 | /// Its \c Key is inherited from \c M and its \c Value is \c bool. |
---|
1547 | /// It makes also possible to write the map. When a value is set, |
---|
1548 | /// the opposite value is set to the original map. |
---|
1549 | /// |
---|
1550 | /// The simplest way of using this map is through the notWriteMap() |
---|
1551 | /// function. |
---|
1552 | /// |
---|
1553 | /// \sa NotMap |
---|
1554 | template <typename M> |
---|
1555 | class NotWriteMap : public MapBase<typename M::Key, bool> { |
---|
1556 | M &_m; |
---|
1557 | public: |
---|
1558 | ///\e |
---|
1559 | typedef typename M::Key Key; |
---|
1560 | ///\e |
---|
1561 | typedef bool Value; |
---|
1562 | |
---|
1563 | /// Constructor |
---|
1564 | NotWriteMap(M &m) : _m(m) {} |
---|
1565 | ///\e |
---|
1566 | Value operator[](const Key &k) const { return !_m[k]; } |
---|
1567 | ///\e |
---|
1568 | void set(const Key &k, bool v) { _m.set(k, !v); } |
---|
1569 | }; |
---|
1570 | |
---|
1571 | /// Returns a \c NotMap class |
---|
1572 | |
---|
1573 | /// This function just returns a \c NotMap class. |
---|
1574 | /// |
---|
1575 | /// For example, if \c m is a map with \c bool values, then |
---|
1576 | /// <tt>notMap(m)[x]</tt> will be equal to <tt>!m[x]</tt>. |
---|
1577 | /// |
---|
1578 | /// \relates NotMap |
---|
1579 | template <typename M> |
---|
1580 | inline NotMap<M> notMap(const M &m) { |
---|
1581 | return NotMap<M>(m); |
---|
1582 | } |
---|
1583 | |
---|
1584 | /// Returns a \c NotWriteMap class |
---|
1585 | |
---|
1586 | /// This function just returns a \c NotWriteMap class. |
---|
1587 | /// |
---|
1588 | /// For example, if \c m is a map with \c bool values, then |
---|
1589 | /// <tt>notWriteMap(m)[x]</tt> will be equal to <tt>!m[x]</tt>. |
---|
1590 | /// Moreover it makes also possible to write the map. |
---|
1591 | /// |
---|
1592 | /// \relates NotWriteMap |
---|
1593 | template <typename M> |
---|
1594 | inline NotWriteMap<M> notWriteMap(M &m) { |
---|
1595 | return NotWriteMap<M>(m); |
---|
1596 | } |
---|
1597 | |
---|
1598 | |
---|
1599 | /// Combination of two maps using the \c == operator |
---|
1600 | |
---|
1601 | /// This \ref concepts::ReadMap "read-only map" assigns \c true to |
---|
1602 | /// the keys for which the corresponding values of the two maps are |
---|
1603 | /// equal. |
---|
1604 | /// Its \c Key type is inherited from \c M1 and its \c Value type is |
---|
1605 | /// \c bool. \c M2::Key must be convertible to \c M1::Key. |
---|
1606 | /// |
---|
1607 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
1608 | /// \code |
---|
1609 | /// EqualMap<M1,M2> em(m1,m2); |
---|
1610 | /// \endcode |
---|
1611 | /// <tt>em[x]</tt> will be equal to <tt>m1[x]==m2[x]</tt>. |
---|
1612 | /// |
---|
1613 | /// The simplest way of using this map is through the equalMap() |
---|
1614 | /// function. |
---|
1615 | /// |
---|
1616 | /// \sa LessMap |
---|
1617 | template<typename M1, typename M2> |
---|
1618 | class EqualMap : public MapBase<typename M1::Key, bool> { |
---|
1619 | const M1 &_m1; |
---|
1620 | const M2 &_m2; |
---|
1621 | public: |
---|
1622 | ///\e |
---|
1623 | typedef typename M1::Key Key; |
---|
1624 | ///\e |
---|
1625 | typedef bool Value; |
---|
1626 | |
---|
1627 | /// Constructor |
---|
1628 | EqualMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
1629 | ///\e |
---|
1630 | Value operator[](const Key &k) const { return _m1[k]==_m2[k]; } |
---|
1631 | }; |
---|
1632 | |
---|
1633 | /// Returns an \c EqualMap class |
---|
1634 | |
---|
1635 | /// This function just returns an \c EqualMap class. |
---|
1636 | /// |
---|
1637 | /// For example, if \c m1 and \c m2 are maps with keys and values of |
---|
1638 | /// the same type, then <tt>equalMap(m1,m2)[x]</tt> will be equal to |
---|
1639 | /// <tt>m1[x]==m2[x]</tt>. |
---|
1640 | /// |
---|
1641 | /// \relates EqualMap |
---|
1642 | template<typename M1, typename M2> |
---|
1643 | inline EqualMap<M1, M2> equalMap(const M1 &m1, const M2 &m2) { |
---|
1644 | return EqualMap<M1, M2>(m1,m2); |
---|
1645 | } |
---|
1646 | |
---|
1647 | |
---|
1648 | /// Combination of two maps using the \c < operator |
---|
1649 | |
---|
1650 | /// This \ref concepts::ReadMap "read-only map" assigns \c true to |
---|
1651 | /// the keys for which the corresponding value of the first map is |
---|
1652 | /// less then the value of the second map. |
---|
1653 | /// Its \c Key type is inherited from \c M1 and its \c Value type is |
---|
1654 | /// \c bool. \c M2::Key must be convertible to \c M1::Key. |
---|
1655 | /// |
---|
1656 | /// If \c m1 is of type \c M1 and \c m2 is of \c M2, then for |
---|
1657 | /// \code |
---|
1658 | /// LessMap<M1,M2> lm(m1,m2); |
---|
1659 | /// \endcode |
---|
1660 | /// <tt>lm[x]</tt> will be equal to <tt>m1[x]<m2[x]</tt>. |
---|
1661 | /// |
---|
1662 | /// The simplest way of using this map is through the lessMap() |
---|
1663 | /// function. |
---|
1664 | /// |
---|
1665 | /// \sa EqualMap |
---|
1666 | template<typename M1, typename M2> |
---|
1667 | class LessMap : public MapBase<typename M1::Key, bool> { |
---|
1668 | const M1 &_m1; |
---|
1669 | const M2 &_m2; |
---|
1670 | public: |
---|
1671 | ///\e |
---|
1672 | typedef typename M1::Key Key; |
---|
1673 | ///\e |
---|
1674 | typedef bool Value; |
---|
1675 | |
---|
1676 | /// Constructor |
---|
1677 | LessMap(const M1 &m1, const M2 &m2) : _m1(m1), _m2(m2) {} |
---|
1678 | ///\e |
---|
1679 | Value operator[](const Key &k) const { return _m1[k]<_m2[k]; } |
---|
1680 | }; |
---|
1681 | |
---|
1682 | /// Returns an \c LessMap class |
---|
1683 | |
---|
1684 | /// This function just returns an \c LessMap class. |
---|
1685 | /// |
---|
1686 | /// For example, if \c m1 and \c m2 are maps with keys and values of |
---|
1687 | /// the same type, then <tt>lessMap(m1,m2)[x]</tt> will be equal to |
---|
1688 | /// <tt>m1[x]<m2[x]</tt>. |
---|
1689 | /// |
---|
1690 | /// \relates LessMap |
---|
1691 | template<typename M1, typename M2> |
---|
1692 | inline LessMap<M1, M2> lessMap(const M1 &m1, const M2 &m2) { |
---|
1693 | return LessMap<M1, M2>(m1,m2); |
---|
1694 | } |
---|
1695 | |
---|
1696 | namespace _maps_bits { |
---|
1697 | |
---|
1698 | template <typename _Iterator, typename Enable = void> |
---|
1699 | struct IteratorTraits { |
---|
1700 | typedef typename std::iterator_traits<_Iterator>::value_type Value; |
---|
1701 | }; |
---|
1702 | |
---|
1703 | template <typename _Iterator> |
---|
1704 | struct IteratorTraits<_Iterator, |
---|
1705 | typename exists<typename _Iterator::container_type>::type> |
---|
1706 | { |
---|
1707 | typedef typename _Iterator::container_type::value_type Value; |
---|
1708 | }; |
---|
1709 | |
---|
1710 | } |
---|
1711 | |
---|
1712 | /// @} |
---|
1713 | |
---|
1714 | /// \addtogroup maps |
---|
1715 | /// @{ |
---|
1716 | |
---|
1717 | /// \brief Writable bool map for logging each \c true assigned element |
---|
1718 | /// |
---|
1719 | /// A \ref concepts::WriteMap "writable" bool map for logging |
---|
1720 | /// each \c true assigned element, i.e it copies subsequently each |
---|
1721 | /// keys set to \c true to the given iterator. |
---|
1722 | /// The most important usage of it is storing certain nodes or arcs |
---|
1723 | /// that were marked \c true by an algorithm. |
---|
1724 | /// |
---|
1725 | /// There are several algorithms that provide solutions through bool |
---|
1726 | /// maps and most of them assign \c true at most once for each key. |
---|
1727 | /// In these cases it is a natural request to store each \c true |
---|
1728 | /// assigned elements (in order of the assignment), which can be |
---|
1729 | /// easily done with LoggerBoolMap. |
---|
1730 | /// |
---|
1731 | /// The simplest way of using this map is through the loggerBoolMap() |
---|
1732 | /// function. |
---|
1733 | /// |
---|
1734 | /// \tparam IT The type of the iterator. |
---|
1735 | /// \tparam KEY The key type of the map. The default value set |
---|
1736 | /// according to the iterator type should work in most cases. |
---|
1737 | /// |
---|
1738 | /// \note The container of the iterator must contain enough space |
---|
1739 | /// for the elements or the iterator should be an inserter iterator. |
---|
1740 | #ifdef DOXYGEN |
---|
1741 | template <typename IT, typename KEY> |
---|
1742 | #else |
---|
1743 | template <typename IT, |
---|
1744 | typename KEY = typename _maps_bits::IteratorTraits<IT>::Value> |
---|
1745 | #endif |
---|
1746 | class LoggerBoolMap : public MapBase<KEY, bool> { |
---|
1747 | public: |
---|
1748 | |
---|
1749 | ///\e |
---|
1750 | typedef KEY Key; |
---|
1751 | ///\e |
---|
1752 | typedef bool Value; |
---|
1753 | ///\e |
---|
1754 | typedef IT Iterator; |
---|
1755 | |
---|
1756 | /// Constructor |
---|
1757 | LoggerBoolMap(Iterator it) |
---|
1758 | : _begin(it), _end(it) {} |
---|
1759 | |
---|
1760 | /// Gives back the given iterator set for the first key |
---|
1761 | Iterator begin() const { |
---|
1762 | return _begin; |
---|
1763 | } |
---|
1764 | |
---|
1765 | /// Gives back the the 'after the last' iterator |
---|
1766 | Iterator end() const { |
---|
1767 | return _end; |
---|
1768 | } |
---|
1769 | |
---|
1770 | /// The set function of the map |
---|
1771 | void set(const Key& key, Value value) { |
---|
1772 | if (value) { |
---|
1773 | *_end++ = key; |
---|
1774 | } |
---|
1775 | } |
---|
1776 | |
---|
1777 | private: |
---|
1778 | Iterator _begin; |
---|
1779 | Iterator _end; |
---|
1780 | }; |
---|
1781 | |
---|
1782 | /// Returns a \c LoggerBoolMap class |
---|
1783 | |
---|
1784 | /// This function just returns a \c LoggerBoolMap class. |
---|
1785 | /// |
---|
1786 | /// The most important usage of it is storing certain nodes or arcs |
---|
1787 | /// that were marked \c true by an algorithm. |
---|
1788 | /// For example it makes easier to store the nodes in the processing |
---|
1789 | /// order of Dfs algorithm, as the following examples show. |
---|
1790 | /// \code |
---|
1791 | /// std::vector<Node> v; |
---|
1792 | /// dfs(g,s).processedMap(loggerBoolMap(std::back_inserter(v))).run(); |
---|
1793 | /// \endcode |
---|
1794 | /// \code |
---|
1795 | /// std::vector<Node> v(countNodes(g)); |
---|
1796 | /// dfs(g,s).processedMap(loggerBoolMap(v.begin())).run(); |
---|
1797 | /// \endcode |
---|
1798 | /// |
---|
1799 | /// \note The container of the iterator must contain enough space |
---|
1800 | /// for the elements or the iterator should be an inserter iterator. |
---|
1801 | /// |
---|
1802 | /// \note LoggerBoolMap is just \ref concepts::WriteMap "writable", so |
---|
1803 | /// it cannot be used when a readable map is needed, for example as |
---|
1804 | /// \c ReachedMap for \c Bfs, \c Dfs and \c Dijkstra algorithms. |
---|
1805 | /// |
---|
1806 | /// \relates LoggerBoolMap |
---|
1807 | template<typename Iterator> |
---|
1808 | inline LoggerBoolMap<Iterator> loggerBoolMap(Iterator it) { |
---|
1809 | return LoggerBoolMap<Iterator>(it); |
---|
1810 | } |
---|
1811 | |
---|
1812 | /// @} |
---|
1813 | |
---|
1814 | /// \addtogroup graph_maps |
---|
1815 | /// @{ |
---|
1816 | |
---|
1817 | /// \brief Provides an immutable and unique id for each item in a graph. |
---|
1818 | /// |
---|
1819 | /// IdMap provides a unique and immutable id for each item of the |
---|
1820 | /// same type (\c Node, \c Arc or \c Edge) in a graph. This id is |
---|
1821 | /// - \b unique: different items get different ids, |
---|
1822 | /// - \b immutable: the id of an item does not change (even if you |
---|
1823 | /// delete other nodes). |
---|
1824 | /// |
---|
1825 | /// Using this map you get access (i.e. can read) the inner id values of |
---|
1826 | /// the items stored in the graph, which is returned by the \c id() |
---|
1827 | /// function of the graph. This map can be inverted with its member |
---|
1828 | /// class \c InverseMap or with the \c operator()() member. |
---|
1829 | /// |
---|
1830 | /// \tparam GR The graph type. |
---|
1831 | /// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or |
---|
1832 | /// \c GR::Edge). |
---|
1833 | /// |
---|
1834 | /// \see RangeIdMap |
---|
1835 | template <typename GR, typename K> |
---|
1836 | class IdMap : public MapBase<K, int> { |
---|
1837 | public: |
---|
1838 | /// The graph type of IdMap. |
---|
1839 | typedef GR Graph; |
---|
1840 | typedef GR Digraph; |
---|
1841 | /// The key type of IdMap (\c Node, \c Arc or \c Edge). |
---|
1842 | typedef K Item; |
---|
1843 | /// The key type of IdMap (\c Node, \c Arc or \c Edge). |
---|
1844 | typedef K Key; |
---|
1845 | /// The value type of IdMap. |
---|
1846 | typedef int Value; |
---|
1847 | |
---|
1848 | /// \brief Constructor. |
---|
1849 | /// |
---|
1850 | /// Constructor of the map. |
---|
1851 | explicit IdMap(const Graph& graph) : _graph(&graph) {} |
---|
1852 | |
---|
1853 | /// \brief Gives back the \e id of the item. |
---|
1854 | /// |
---|
1855 | /// Gives back the immutable and unique \e id of the item. |
---|
1856 | int operator[](const Item& item) const { return _graph->id(item);} |
---|
1857 | |
---|
1858 | /// \brief Gives back the \e item by its id. |
---|
1859 | /// |
---|
1860 | /// Gives back the \e item by its id. |
---|
1861 | Item operator()(int id) { return _graph->fromId(id, Item()); } |
---|
1862 | |
---|
1863 | private: |
---|
1864 | const Graph* _graph; |
---|
1865 | |
---|
1866 | public: |
---|
1867 | |
---|
1868 | /// \brief The inverse map type of IdMap. |
---|
1869 | /// |
---|
1870 | /// The inverse map type of IdMap. The subscript operator gives back |
---|
1871 | /// an item by its id. |
---|
1872 | /// This type conforms to the \ref concepts::ReadMap "ReadMap" concept. |
---|
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 an item by its id. |
---|
1888 | /// |
---|
1889 | /// Gives back an item by 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 | |
---|
1903 | /// \brief General cross reference graph map type. |
---|
1904 | |
---|
1905 | /// This class provides simple invertable graph maps. |
---|
1906 | /// It wraps a standard graph map (\c NodeMap, \c ArcMap or \c EdgeMap) |
---|
1907 | /// and if a key is set to a new value, then stores it in the inverse map. |
---|
1908 | /// The graph items can be accessed by their values either using |
---|
1909 | /// \c InverseMap or \c operator()(), and the values of the map can be |
---|
1910 | /// accessed with an STL compatible forward iterator (\c ValueIt). |
---|
1911 | /// |
---|
1912 | /// This map is intended to be used when all associated values are |
---|
1913 | /// different (the map is actually invertable) or there are only a few |
---|
1914 | /// items with the same value. |
---|
1915 | /// Otherwise consider to use \c IterableValueMap, which is more |
---|
1916 | /// suitable and more efficient for such cases. It provides iterators |
---|
1917 | /// to traverse the items with the same associated value, however |
---|
1918 | /// it does not have \c InverseMap. |
---|
1919 | /// |
---|
1920 | /// This type is not reference map, so it cannot be modified with |
---|
1921 | /// the subscript operator. |
---|
1922 | /// |
---|
1923 | /// \tparam GR The graph type. |
---|
1924 | /// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or |
---|
1925 | /// \c GR::Edge). |
---|
1926 | /// \tparam V The value type of the map. |
---|
1927 | /// |
---|
1928 | /// \see IterableValueMap |
---|
1929 | template <typename GR, typename K, typename V> |
---|
1930 | class CrossRefMap |
---|
1931 | : protected ItemSetTraits<GR, K>::template Map<V>::Type { |
---|
1932 | private: |
---|
1933 | |
---|
1934 | typedef typename ItemSetTraits<GR, K>:: |
---|
1935 | template Map<V>::Type Map; |
---|
1936 | |
---|
1937 | typedef std::multimap<V, K> Container; |
---|
1938 | Container _inv_map; |
---|
1939 | |
---|
1940 | public: |
---|
1941 | |
---|
1942 | /// The graph type of CrossRefMap. |
---|
1943 | typedef GR Graph; |
---|
1944 | typedef GR Digraph; |
---|
1945 | /// The key type of CrossRefMap (\c Node, \c Arc or \c Edge). |
---|
1946 | typedef K Item; |
---|
1947 | /// The key type of CrossRefMap (\c Node, \c Arc or \c Edge). |
---|
1948 | typedef K Key; |
---|
1949 | /// The value type of CrossRefMap. |
---|
1950 | typedef V Value; |
---|
1951 | |
---|
1952 | /// \brief Constructor. |
---|
1953 | /// |
---|
1954 | /// Construct a new CrossRefMap for the given graph. |
---|
1955 | explicit CrossRefMap(const Graph& graph) : Map(graph) {} |
---|
1956 | |
---|
1957 | /// \brief Forward iterator for values. |
---|
1958 | /// |
---|
1959 | /// This iterator is an STL compatible forward |
---|
1960 | /// iterator on the values of the map. The values can |
---|
1961 | /// be accessed in the <tt>[beginValue, endValue)</tt> range. |
---|
1962 | /// They are considered with multiplicity, so each value is |
---|
1963 | /// traversed for each item it is assigned to. |
---|
1964 | class ValueIt |
---|
1965 | : public std::iterator<std::forward_iterator_tag, Value> { |
---|
1966 | friend class CrossRefMap; |
---|
1967 | private: |
---|
1968 | ValueIt(typename Container::const_iterator _it) |
---|
1969 | : it(_it) {} |
---|
1970 | public: |
---|
1971 | |
---|
1972 | /// Constructor |
---|
1973 | ValueIt() {} |
---|
1974 | |
---|
1975 | /// \e |
---|
1976 | ValueIt& operator++() { ++it; return *this; } |
---|
1977 | /// \e |
---|
1978 | ValueIt operator++(int) { |
---|
1979 | ValueIt tmp(*this); |
---|
1980 | operator++(); |
---|
1981 | return tmp; |
---|
1982 | } |
---|
1983 | |
---|
1984 | /// \e |
---|
1985 | const Value& operator*() const { return it->first; } |
---|
1986 | /// \e |
---|
1987 | const Value* operator->() const { return &(it->first); } |
---|
1988 | |
---|
1989 | /// \e |
---|
1990 | bool operator==(ValueIt jt) const { return it == jt.it; } |
---|
1991 | /// \e |
---|
1992 | bool operator!=(ValueIt jt) const { return it != jt.it; } |
---|
1993 | |
---|
1994 | private: |
---|
1995 | typename Container::const_iterator it; |
---|
1996 | }; |
---|
1997 | |
---|
1998 | /// Alias for \c ValueIt |
---|
1999 | typedef ValueIt ValueIterator; |
---|
2000 | |
---|
2001 | /// \brief Returns an iterator to the first value. |
---|
2002 | /// |
---|
2003 | /// Returns an STL compatible iterator to the |
---|
2004 | /// first value of the map. The values of the |
---|
2005 | /// map can be accessed in the <tt>[beginValue, endValue)</tt> |
---|
2006 | /// range. |
---|
2007 | ValueIt beginValue() const { |
---|
2008 | return ValueIt(_inv_map.begin()); |
---|
2009 | } |
---|
2010 | |
---|
2011 | /// \brief Returns an iterator after the last value. |
---|
2012 | /// |
---|
2013 | /// Returns an STL compatible iterator after the |
---|
2014 | /// last value of the map. The values of the |
---|
2015 | /// map can be accessed in the <tt>[beginValue, endValue)</tt> |
---|
2016 | /// range. |
---|
2017 | ValueIt endValue() const { |
---|
2018 | return ValueIt(_inv_map.end()); |
---|
2019 | } |
---|
2020 | |
---|
2021 | /// \brief Sets the value associated with the given key. |
---|
2022 | /// |
---|
2023 | /// Sets the value associated with the given key. |
---|
2024 | void set(const Key& key, const Value& val) { |
---|
2025 | Value oldval = Map::operator[](key); |
---|
2026 | typename Container::iterator it; |
---|
2027 | for (it = _inv_map.equal_range(oldval).first; |
---|
2028 | it != _inv_map.equal_range(oldval).second; ++it) { |
---|
2029 | if (it->second == key) { |
---|
2030 | _inv_map.erase(it); |
---|
2031 | break; |
---|
2032 | } |
---|
2033 | } |
---|
2034 | _inv_map.insert(std::make_pair(val, key)); |
---|
2035 | Map::set(key, val); |
---|
2036 | } |
---|
2037 | |
---|
2038 | /// \brief Returns the value associated with the given key. |
---|
2039 | /// |
---|
2040 | /// Returns the value associated with the given key. |
---|
2041 | typename MapTraits<Map>::ConstReturnValue |
---|
2042 | operator[](const Key& key) const { |
---|
2043 | return Map::operator[](key); |
---|
2044 | } |
---|
2045 | |
---|
2046 | /// \brief Gives back an item by its value. |
---|
2047 | /// |
---|
2048 | /// This function gives back an item that is assigned to |
---|
2049 | /// the given value or \c INVALID if no such item exists. |
---|
2050 | /// If there are more items with the same associated value, |
---|
2051 | /// only one of them is returned. |
---|
2052 | Key operator()(const Value& val) const { |
---|
2053 | typename Container::const_iterator it = _inv_map.find(val); |
---|
2054 | return it != _inv_map.end() ? it->second : INVALID; |
---|
2055 | } |
---|
2056 | |
---|
2057 | /// \brief Returns the number of items with the given value. |
---|
2058 | /// |
---|
2059 | /// This function returns the number of items with the given value |
---|
2060 | /// associated with it. |
---|
2061 | int count(const Value &val) const { |
---|
2062 | return _inv_map.count(val); |
---|
2063 | } |
---|
2064 | |
---|
2065 | protected: |
---|
2066 | |
---|
2067 | /// \brief Erase the key from the map and the inverse map. |
---|
2068 | /// |
---|
2069 | /// Erase the key from the map and the inverse map. It is called by the |
---|
2070 | /// \c AlterationNotifier. |
---|
2071 | virtual void erase(const Key& key) { |
---|
2072 | Value val = Map::operator[](key); |
---|
2073 | typename Container::iterator it; |
---|
2074 | for (it = _inv_map.equal_range(val).first; |
---|
2075 | it != _inv_map.equal_range(val).second; ++it) { |
---|
2076 | if (it->second == key) { |
---|
2077 | _inv_map.erase(it); |
---|
2078 | break; |
---|
2079 | } |
---|
2080 | } |
---|
2081 | Map::erase(key); |
---|
2082 | } |
---|
2083 | |
---|
2084 | /// \brief Erase more keys from the map and the inverse map. |
---|
2085 | /// |
---|
2086 | /// Erase more keys from the map and the inverse map. It is called by the |
---|
2087 | /// \c AlterationNotifier. |
---|
2088 | virtual void erase(const std::vector<Key>& keys) { |
---|
2089 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
2090 | Value val = Map::operator[](keys[i]); |
---|
2091 | typename Container::iterator it; |
---|
2092 | for (it = _inv_map.equal_range(val).first; |
---|
2093 | it != _inv_map.equal_range(val).second; ++it) { |
---|
2094 | if (it->second == keys[i]) { |
---|
2095 | _inv_map.erase(it); |
---|
2096 | break; |
---|
2097 | } |
---|
2098 | } |
---|
2099 | } |
---|
2100 | Map::erase(keys); |
---|
2101 | } |
---|
2102 | |
---|
2103 | /// \brief Clear the keys from the map and the inverse map. |
---|
2104 | /// |
---|
2105 | /// Clear the keys from the map and the inverse map. It is called by the |
---|
2106 | /// \c AlterationNotifier. |
---|
2107 | virtual void clear() { |
---|
2108 | _inv_map.clear(); |
---|
2109 | Map::clear(); |
---|
2110 | } |
---|
2111 | |
---|
2112 | public: |
---|
2113 | |
---|
2114 | /// \brief The inverse map type of CrossRefMap. |
---|
2115 | /// |
---|
2116 | /// The inverse map type of CrossRefMap. The subscript operator gives |
---|
2117 | /// back an item by its value. |
---|
2118 | /// This type conforms to the \ref concepts::ReadMap "ReadMap" concept. |
---|
2119 | /// \see inverse() |
---|
2120 | class InverseMap { |
---|
2121 | public: |
---|
2122 | /// \brief Constructor |
---|
2123 | /// |
---|
2124 | /// Constructor of the InverseMap. |
---|
2125 | explicit InverseMap(const CrossRefMap& inverted) |
---|
2126 | : _inverted(inverted) {} |
---|
2127 | |
---|
2128 | /// The value type of the InverseMap. |
---|
2129 | typedef typename CrossRefMap::Key Value; |
---|
2130 | /// The key type of the InverseMap. |
---|
2131 | typedef typename CrossRefMap::Value Key; |
---|
2132 | |
---|
2133 | /// \brief Subscript operator. |
---|
2134 | /// |
---|
2135 | /// Subscript operator. It gives back an item |
---|
2136 | /// that is assigned to the given value or \c INVALID |
---|
2137 | /// if no such item exists. |
---|
2138 | Value operator[](const Key& key) const { |
---|
2139 | return _inverted(key); |
---|
2140 | } |
---|
2141 | |
---|
2142 | private: |
---|
2143 | const CrossRefMap& _inverted; |
---|
2144 | }; |
---|
2145 | |
---|
2146 | /// \brief Gives back the inverse of the map. |
---|
2147 | /// |
---|
2148 | /// Gives back the inverse of the CrossRefMap. |
---|
2149 | InverseMap inverse() const { |
---|
2150 | return InverseMap(*this); |
---|
2151 | } |
---|
2152 | |
---|
2153 | }; |
---|
2154 | |
---|
2155 | /// \brief Provides continuous and unique id for the |
---|
2156 | /// items of a graph. |
---|
2157 | /// |
---|
2158 | /// RangeIdMap provides a unique and continuous |
---|
2159 | /// id for each item of a given type (\c Node, \c Arc or |
---|
2160 | /// \c Edge) in a graph. This id is |
---|
2161 | /// - \b unique: different items get different ids, |
---|
2162 | /// - \b continuous: the range of the ids is the set of integers |
---|
2163 | /// between 0 and \c n-1, where \c n is the number of the items of |
---|
2164 | /// this type (\c Node, \c Arc or \c Edge). |
---|
2165 | /// - So, the ids can change when deleting an item of the same type. |
---|
2166 | /// |
---|
2167 | /// Thus this id is not (necessarily) the same as what can get using |
---|
2168 | /// the \c id() function of the graph or \ref IdMap. |
---|
2169 | /// This map can be inverted with its member class \c InverseMap, |
---|
2170 | /// or with the \c operator()() member. |
---|
2171 | /// |
---|
2172 | /// \tparam GR The graph type. |
---|
2173 | /// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or |
---|
2174 | /// \c GR::Edge). |
---|
2175 | /// |
---|
2176 | /// \see IdMap |
---|
2177 | template <typename GR, typename K> |
---|
2178 | class RangeIdMap |
---|
2179 | : protected ItemSetTraits<GR, K>::template Map<int>::Type { |
---|
2180 | |
---|
2181 | typedef typename ItemSetTraits<GR, K>::template Map<int>::Type Map; |
---|
2182 | |
---|
2183 | public: |
---|
2184 | /// The graph type of RangeIdMap. |
---|
2185 | typedef GR Graph; |
---|
2186 | typedef GR Digraph; |
---|
2187 | /// The key type of RangeIdMap (\c Node, \c Arc or \c Edge). |
---|
2188 | typedef K Item; |
---|
2189 | /// The key type of RangeIdMap (\c Node, \c Arc or \c Edge). |
---|
2190 | typedef K Key; |
---|
2191 | /// The value type of RangeIdMap. |
---|
2192 | typedef int Value; |
---|
2193 | |
---|
2194 | /// \brief Constructor. |
---|
2195 | /// |
---|
2196 | /// Constructor. |
---|
2197 | explicit RangeIdMap(const Graph& gr) : Map(gr) { |
---|
2198 | Item it; |
---|
2199 | const typename Map::Notifier* nf = Map::notifier(); |
---|
2200 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
2201 | Map::set(it, _inv_map.size()); |
---|
2202 | _inv_map.push_back(it); |
---|
2203 | } |
---|
2204 | } |
---|
2205 | |
---|
2206 | protected: |
---|
2207 | |
---|
2208 | /// \brief Adds a new key to the map. |
---|
2209 | /// |
---|
2210 | /// Add a new key to the map. It is called by the |
---|
2211 | /// \c AlterationNotifier. |
---|
2212 | virtual void add(const Item& item) { |
---|
2213 | Map::add(item); |
---|
2214 | Map::set(item, _inv_map.size()); |
---|
2215 | _inv_map.push_back(item); |
---|
2216 | } |
---|
2217 | |
---|
2218 | /// \brief Add more new keys to the map. |
---|
2219 | /// |
---|
2220 | /// Add more new keys to the map. It is called by the |
---|
2221 | /// \c AlterationNotifier. |
---|
2222 | virtual void add(const std::vector<Item>& items) { |
---|
2223 | Map::add(items); |
---|
2224 | for (int i = 0; i < int(items.size()); ++i) { |
---|
2225 | Map::set(items[i], _inv_map.size()); |
---|
2226 | _inv_map.push_back(items[i]); |
---|
2227 | } |
---|
2228 | } |
---|
2229 | |
---|
2230 | /// \brief Erase the key from the map. |
---|
2231 | /// |
---|
2232 | /// Erase the key from the map. It is called by the |
---|
2233 | /// \c AlterationNotifier. |
---|
2234 | virtual void erase(const Item& item) { |
---|
2235 | Map::set(_inv_map.back(), Map::operator[](item)); |
---|
2236 | _inv_map[Map::operator[](item)] = _inv_map.back(); |
---|
2237 | _inv_map.pop_back(); |
---|
2238 | Map::erase(item); |
---|
2239 | } |
---|
2240 | |
---|
2241 | /// \brief Erase more keys from the map. |
---|
2242 | /// |
---|
2243 | /// Erase more keys from the map. It is called by the |
---|
2244 | /// \c AlterationNotifier. |
---|
2245 | virtual void erase(const std::vector<Item>& items) { |
---|
2246 | for (int i = 0; i < int(items.size()); ++i) { |
---|
2247 | Map::set(_inv_map.back(), Map::operator[](items[i])); |
---|
2248 | _inv_map[Map::operator[](items[i])] = _inv_map.back(); |
---|
2249 | _inv_map.pop_back(); |
---|
2250 | } |
---|
2251 | Map::erase(items); |
---|
2252 | } |
---|
2253 | |
---|
2254 | /// \brief Build the unique map. |
---|
2255 | /// |
---|
2256 | /// Build the unique map. It is called by the |
---|
2257 | /// \c AlterationNotifier. |
---|
2258 | virtual void build() { |
---|
2259 | Map::build(); |
---|
2260 | Item it; |
---|
2261 | const typename Map::Notifier* nf = Map::notifier(); |
---|
2262 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
2263 | Map::set(it, _inv_map.size()); |
---|
2264 | _inv_map.push_back(it); |
---|
2265 | } |
---|
2266 | } |
---|
2267 | |
---|
2268 | /// \brief Clear the keys from the map. |
---|
2269 | /// |
---|
2270 | /// Clear the keys from the map. It is called by the |
---|
2271 | /// \c AlterationNotifier. |
---|
2272 | virtual void clear() { |
---|
2273 | _inv_map.clear(); |
---|
2274 | Map::clear(); |
---|
2275 | } |
---|
2276 | |
---|
2277 | public: |
---|
2278 | |
---|
2279 | /// \brief Returns the maximal value plus one. |
---|
2280 | /// |
---|
2281 | /// Returns the maximal value plus one in the map. |
---|
2282 | unsigned int size() const { |
---|
2283 | return _inv_map.size(); |
---|
2284 | } |
---|
2285 | |
---|
2286 | /// \brief Swaps the position of the two items in the map. |
---|
2287 | /// |
---|
2288 | /// Swaps the position of the two items in the map. |
---|
2289 | void swap(const Item& p, const Item& q) { |
---|
2290 | int pi = Map::operator[](p); |
---|
2291 | int qi = Map::operator[](q); |
---|
2292 | Map::set(p, qi); |
---|
2293 | _inv_map[qi] = p; |
---|
2294 | Map::set(q, pi); |
---|
2295 | _inv_map[pi] = q; |
---|
2296 | } |
---|
2297 | |
---|
2298 | /// \brief Gives back the \e range \e id of the item |
---|
2299 | /// |
---|
2300 | /// Gives back the \e range \e id of the item. |
---|
2301 | int operator[](const Item& item) const { |
---|
2302 | return Map::operator[](item); |
---|
2303 | } |
---|
2304 | |
---|
2305 | /// \brief Gives back the item belonging to a \e range \e id |
---|
2306 | /// |
---|
2307 | /// Gives back the item belonging to the given \e range \e id. |
---|
2308 | Item operator()(int id) const { |
---|
2309 | return _inv_map[id]; |
---|
2310 | } |
---|
2311 | |
---|
2312 | private: |
---|
2313 | |
---|
2314 | typedef std::vector<Item> Container; |
---|
2315 | Container _inv_map; |
---|
2316 | |
---|
2317 | public: |
---|
2318 | |
---|
2319 | /// \brief The inverse map type of RangeIdMap. |
---|
2320 | /// |
---|
2321 | /// The inverse map type of RangeIdMap. The subscript operator gives |
---|
2322 | /// back an item by its \e range \e id. |
---|
2323 | /// This type conforms to the \ref concepts::ReadMap "ReadMap" concept. |
---|
2324 | class InverseMap { |
---|
2325 | public: |
---|
2326 | /// \brief Constructor |
---|
2327 | /// |
---|
2328 | /// Constructor of the InverseMap. |
---|
2329 | explicit InverseMap(const RangeIdMap& inverted) |
---|
2330 | : _inverted(inverted) {} |
---|
2331 | |
---|
2332 | |
---|
2333 | /// The value type of the InverseMap. |
---|
2334 | typedef typename RangeIdMap::Key Value; |
---|
2335 | /// The key type of the InverseMap. |
---|
2336 | typedef typename RangeIdMap::Value Key; |
---|
2337 | |
---|
2338 | /// \brief Subscript operator. |
---|
2339 | /// |
---|
2340 | /// Subscript operator. It gives back the item |
---|
2341 | /// that the given \e range \e id currently belongs to. |
---|
2342 | Value operator[](const Key& key) const { |
---|
2343 | return _inverted(key); |
---|
2344 | } |
---|
2345 | |
---|
2346 | /// \brief Size of the map. |
---|
2347 | /// |
---|
2348 | /// Returns the size of the map. |
---|
2349 | unsigned int size() const { |
---|
2350 | return _inverted.size(); |
---|
2351 | } |
---|
2352 | |
---|
2353 | private: |
---|
2354 | const RangeIdMap& _inverted; |
---|
2355 | }; |
---|
2356 | |
---|
2357 | /// \brief Gives back the inverse of the map. |
---|
2358 | /// |
---|
2359 | /// Gives back the inverse of the RangeIdMap. |
---|
2360 | const InverseMap inverse() const { |
---|
2361 | return InverseMap(*this); |
---|
2362 | } |
---|
2363 | }; |
---|
2364 | |
---|
2365 | /// \brief Dynamic iterable \c bool map. |
---|
2366 | /// |
---|
2367 | /// This class provides a special graph map type which can store a |
---|
2368 | /// \c bool value for graph items (\c Node, \c Arc or \c Edge). |
---|
2369 | /// For both \c true and \c false values it is possible to iterate on |
---|
2370 | /// the keys mapped to the value. |
---|
2371 | /// |
---|
2372 | /// This type is a reference map, so it can be modified with the |
---|
2373 | /// subscript operator. |
---|
2374 | /// |
---|
2375 | /// \tparam GR The graph type. |
---|
2376 | /// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or |
---|
2377 | /// \c GR::Edge). |
---|
2378 | /// |
---|
2379 | /// \see IterableIntMap, IterableValueMap |
---|
2380 | /// \see CrossRefMap |
---|
2381 | template <typename GR, typename K> |
---|
2382 | class IterableBoolMap |
---|
2383 | : protected ItemSetTraits<GR, K>::template Map<int>::Type { |
---|
2384 | private: |
---|
2385 | typedef GR Graph; |
---|
2386 | |
---|
2387 | typedef typename ItemSetTraits<GR, K>::ItemIt KeyIt; |
---|
2388 | typedef typename ItemSetTraits<GR, K>::template Map<int>::Type Parent; |
---|
2389 | |
---|
2390 | std::vector<K> _array; |
---|
2391 | int _sep; |
---|
2392 | |
---|
2393 | public: |
---|
2394 | |
---|
2395 | /// Indicates that the map is reference map. |
---|
2396 | typedef True ReferenceMapTag; |
---|
2397 | |
---|
2398 | /// The key type |
---|
2399 | typedef K Key; |
---|
2400 | /// The value type |
---|
2401 | typedef bool Value; |
---|
2402 | /// The const reference type. |
---|
2403 | typedef const Value& ConstReference; |
---|
2404 | |
---|
2405 | private: |
---|
2406 | |
---|
2407 | int position(const Key& key) const { |
---|
2408 | return Parent::operator[](key); |
---|
2409 | } |
---|
2410 | |
---|
2411 | public: |
---|
2412 | |
---|
2413 | /// \brief Reference to the value of the map. |
---|
2414 | /// |
---|
2415 | /// This class is similar to the \c bool type. It can be converted to |
---|
2416 | /// \c bool and it provides the same operators. |
---|
2417 | class Reference { |
---|
2418 | friend class IterableBoolMap; |
---|
2419 | private: |
---|
2420 | Reference(IterableBoolMap& map, const Key& key) |
---|
2421 | : _key(key), _map(map) {} |
---|
2422 | public: |
---|
2423 | |
---|
2424 | Reference& operator=(const Reference& value) { |
---|
2425 | _map.set(_key, static_cast<bool>(value)); |
---|
2426 | return *this; |
---|
2427 | } |
---|
2428 | |
---|
2429 | operator bool() const { |
---|
2430 | return static_cast<const IterableBoolMap&>(_map)[_key]; |
---|
2431 | } |
---|
2432 | |
---|
2433 | Reference& operator=(bool value) { |
---|
2434 | _map.set(_key, value); |
---|
2435 | return *this; |
---|
2436 | } |
---|
2437 | Reference& operator&=(bool value) { |
---|
2438 | _map.set(_key, _map[_key] & value); |
---|
2439 | return *this; |
---|
2440 | } |
---|
2441 | Reference& operator|=(bool value) { |
---|
2442 | _map.set(_key, _map[_key] | value); |
---|
2443 | return *this; |
---|
2444 | } |
---|
2445 | Reference& operator^=(bool value) { |
---|
2446 | _map.set(_key, _map[_key] ^ value); |
---|
2447 | return *this; |
---|
2448 | } |
---|
2449 | private: |
---|
2450 | Key _key; |
---|
2451 | IterableBoolMap& _map; |
---|
2452 | }; |
---|
2453 | |
---|
2454 | /// \brief Constructor of the map with a default value. |
---|
2455 | /// |
---|
2456 | /// Constructor of the map with a default value. |
---|
2457 | explicit IterableBoolMap(const Graph& graph, bool def = false) |
---|
2458 | : Parent(graph) { |
---|
2459 | typename Parent::Notifier* nf = Parent::notifier(); |
---|
2460 | Key it; |
---|
2461 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
2462 | Parent::set(it, _array.size()); |
---|
2463 | _array.push_back(it); |
---|
2464 | } |
---|
2465 | _sep = (def ? _array.size() : 0); |
---|
2466 | } |
---|
2467 | |
---|
2468 | /// \brief Const subscript operator of the map. |
---|
2469 | /// |
---|
2470 | /// Const subscript operator of the map. |
---|
2471 | bool operator[](const Key& key) const { |
---|
2472 | return position(key) < _sep; |
---|
2473 | } |
---|
2474 | |
---|
2475 | /// \brief Subscript operator of the map. |
---|
2476 | /// |
---|
2477 | /// Subscript operator of the map. |
---|
2478 | Reference operator[](const Key& key) { |
---|
2479 | return Reference(*this, key); |
---|
2480 | } |
---|
2481 | |
---|
2482 | /// \brief Set operation of the map. |
---|
2483 | /// |
---|
2484 | /// Set operation of the map. |
---|
2485 | void set(const Key& key, bool value) { |
---|
2486 | int pos = position(key); |
---|
2487 | if (value) { |
---|
2488 | if (pos < _sep) return; |
---|
2489 | Key tmp = _array[_sep]; |
---|
2490 | _array[_sep] = key; |
---|
2491 | Parent::set(key, _sep); |
---|
2492 | _array[pos] = tmp; |
---|
2493 | Parent::set(tmp, pos); |
---|
2494 | ++_sep; |
---|
2495 | } else { |
---|
2496 | if (pos >= _sep) return; |
---|
2497 | --_sep; |
---|
2498 | Key tmp = _array[_sep]; |
---|
2499 | _array[_sep] = key; |
---|
2500 | Parent::set(key, _sep); |
---|
2501 | _array[pos] = tmp; |
---|
2502 | Parent::set(tmp, pos); |
---|
2503 | } |
---|
2504 | } |
---|
2505 | |
---|
2506 | /// \brief Set all items. |
---|
2507 | /// |
---|
2508 | /// Set all items in the map. |
---|
2509 | /// \note Constant time operation. |
---|
2510 | void setAll(bool value) { |
---|
2511 | _sep = (value ? _array.size() : 0); |
---|
2512 | } |
---|
2513 | |
---|
2514 | /// \brief Returns the number of the keys mapped to \c true. |
---|
2515 | /// |
---|
2516 | /// Returns the number of the keys mapped to \c true. |
---|
2517 | int trueNum() const { |
---|
2518 | return _sep; |
---|
2519 | } |
---|
2520 | |
---|
2521 | /// \brief Returns the number of the keys mapped to \c false. |
---|
2522 | /// |
---|
2523 | /// Returns the number of the keys mapped to \c false. |
---|
2524 | int falseNum() const { |
---|
2525 | return _array.size() - _sep; |
---|
2526 | } |
---|
2527 | |
---|
2528 | /// \brief Iterator for the keys mapped to \c true. |
---|
2529 | /// |
---|
2530 | /// Iterator for the keys mapped to \c true. It works |
---|
2531 | /// like a graph item iterator, it can be converted to |
---|
2532 | /// the key type of the map, incremented with \c ++ operator, and |
---|
2533 | /// if the iterator leaves the last valid key, it will be equal to |
---|
2534 | /// \c INVALID. |
---|
2535 | class TrueIt : public Key { |
---|
2536 | public: |
---|
2537 | typedef Key Parent; |
---|
2538 | |
---|
2539 | /// \brief Creates an iterator. |
---|
2540 | /// |
---|
2541 | /// Creates an iterator. It iterates on the |
---|
2542 | /// keys mapped to \c true. |
---|
2543 | /// \param map The IterableBoolMap. |
---|
2544 | explicit TrueIt(const IterableBoolMap& map) |
---|
2545 | : Parent(map._sep > 0 ? map._array[map._sep - 1] : INVALID), |
---|
2546 | _map(&map) {} |
---|
2547 | |
---|
2548 | /// \brief Invalid constructor \& conversion. |
---|
2549 | /// |
---|
2550 | /// This constructor initializes the iterator to be invalid. |
---|
2551 | /// \sa Invalid for more details. |
---|
2552 | TrueIt(Invalid) : Parent(INVALID), _map(0) {} |
---|
2553 | |
---|
2554 | /// \brief Increment operator. |
---|
2555 | /// |
---|
2556 | /// Increment operator. |
---|
2557 | TrueIt& operator++() { |
---|
2558 | int pos = _map->position(*this); |
---|
2559 | Parent::operator=(pos > 0 ? _map->_array[pos - 1] : INVALID); |
---|
2560 | return *this; |
---|
2561 | } |
---|
2562 | |
---|
2563 | private: |
---|
2564 | const IterableBoolMap* _map; |
---|
2565 | }; |
---|
2566 | |
---|
2567 | /// \brief Iterator for the keys mapped to \c false. |
---|
2568 | /// |
---|
2569 | /// Iterator for the keys mapped to \c false. It works |
---|
2570 | /// like a graph item iterator, it can be converted to |
---|
2571 | /// the key type of the map, incremented with \c ++ operator, and |
---|
2572 | /// if the iterator leaves the last valid key, it will be equal to |
---|
2573 | /// \c INVALID. |
---|
2574 | class FalseIt : public Key { |
---|
2575 | public: |
---|
2576 | typedef Key Parent; |
---|
2577 | |
---|
2578 | /// \brief Creates an iterator. |
---|
2579 | /// |
---|
2580 | /// Creates an iterator. It iterates on the |
---|
2581 | /// keys mapped to \c false. |
---|
2582 | /// \param map The IterableBoolMap. |
---|
2583 | explicit FalseIt(const IterableBoolMap& map) |
---|
2584 | : Parent(map._sep < int(map._array.size()) ? |
---|
2585 | map._array.back() : INVALID), _map(&map) {} |
---|
2586 | |
---|
2587 | /// \brief Invalid constructor \& conversion. |
---|
2588 | /// |
---|
2589 | /// This constructor initializes the iterator to be invalid. |
---|
2590 | /// \sa Invalid for more details. |
---|
2591 | FalseIt(Invalid) : Parent(INVALID), _map(0) {} |
---|
2592 | |
---|
2593 | /// \brief Increment operator. |
---|
2594 | /// |
---|
2595 | /// Increment operator. |
---|
2596 | FalseIt& operator++() { |
---|
2597 | int pos = _map->position(*this); |
---|
2598 | Parent::operator=(pos > _map->_sep ? _map->_array[pos - 1] : INVALID); |
---|
2599 | return *this; |
---|
2600 | } |
---|
2601 | |
---|
2602 | private: |
---|
2603 | const IterableBoolMap* _map; |
---|
2604 | }; |
---|
2605 | |
---|
2606 | /// \brief Iterator for the keys mapped to a given value. |
---|
2607 | /// |
---|
2608 | /// Iterator for the keys mapped to a given value. It works |
---|
2609 | /// like a graph item iterator, it can be converted to |
---|
2610 | /// the key type of the map, incremented with \c ++ operator, and |
---|
2611 | /// if the iterator leaves the last valid key, it will be equal to |
---|
2612 | /// \c INVALID. |
---|
2613 | class ItemIt : public Key { |
---|
2614 | public: |
---|
2615 | typedef Key Parent; |
---|
2616 | |
---|
2617 | /// \brief Creates an iterator with a value. |
---|
2618 | /// |
---|
2619 | /// Creates an iterator with a value. It iterates on the |
---|
2620 | /// keys mapped to the given value. |
---|
2621 | /// \param map The IterableBoolMap. |
---|
2622 | /// \param value The value. |
---|
2623 | ItemIt(const IterableBoolMap& map, bool value) |
---|
2624 | : Parent(value ? |
---|
2625 | (map._sep > 0 ? |
---|
2626 | map._array[map._sep - 1] : INVALID) : |
---|
2627 | (map._sep < int(map._array.size()) ? |
---|
2628 | map._array.back() : INVALID)), _map(&map) {} |
---|
2629 | |
---|
2630 | /// \brief Invalid constructor \& conversion. |
---|
2631 | /// |
---|
2632 | /// This constructor initializes the iterator to be invalid. |
---|
2633 | /// \sa Invalid for more details. |
---|
2634 | ItemIt(Invalid) : Parent(INVALID), _map(0) {} |
---|
2635 | |
---|
2636 | /// \brief Increment operator. |
---|
2637 | /// |
---|
2638 | /// Increment operator. |
---|
2639 | ItemIt& operator++() { |
---|
2640 | int pos = _map->position(*this); |
---|
2641 | int _sep = pos >= _map->_sep ? _map->_sep : 0; |
---|
2642 | Parent::operator=(pos > _sep ? _map->_array[pos - 1] : INVALID); |
---|
2643 | return *this; |
---|
2644 | } |
---|
2645 | |
---|
2646 | private: |
---|
2647 | const IterableBoolMap* _map; |
---|
2648 | }; |
---|
2649 | |
---|
2650 | protected: |
---|
2651 | |
---|
2652 | virtual void add(const Key& key) { |
---|
2653 | Parent::add(key); |
---|
2654 | Parent::set(key, _array.size()); |
---|
2655 | _array.push_back(key); |
---|
2656 | } |
---|
2657 | |
---|
2658 | virtual void add(const std::vector<Key>& keys) { |
---|
2659 | Parent::add(keys); |
---|
2660 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
2661 | Parent::set(keys[i], _array.size()); |
---|
2662 | _array.push_back(keys[i]); |
---|
2663 | } |
---|
2664 | } |
---|
2665 | |
---|
2666 | virtual void erase(const Key& key) { |
---|
2667 | int pos = position(key); |
---|
2668 | if (pos < _sep) { |
---|
2669 | --_sep; |
---|
2670 | Parent::set(_array[_sep], pos); |
---|
2671 | _array[pos] = _array[_sep]; |
---|
2672 | Parent::set(_array.back(), _sep); |
---|
2673 | _array[_sep] = _array.back(); |
---|
2674 | _array.pop_back(); |
---|
2675 | } else { |
---|
2676 | Parent::set(_array.back(), pos); |
---|
2677 | _array[pos] = _array.back(); |
---|
2678 | _array.pop_back(); |
---|
2679 | } |
---|
2680 | Parent::erase(key); |
---|
2681 | } |
---|
2682 | |
---|
2683 | virtual void erase(const std::vector<Key>& keys) { |
---|
2684 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
2685 | int pos = position(keys[i]); |
---|
2686 | if (pos < _sep) { |
---|
2687 | --_sep; |
---|
2688 | Parent::set(_array[_sep], pos); |
---|
2689 | _array[pos] = _array[_sep]; |
---|
2690 | Parent::set(_array.back(), _sep); |
---|
2691 | _array[_sep] = _array.back(); |
---|
2692 | _array.pop_back(); |
---|
2693 | } else { |
---|
2694 | Parent::set(_array.back(), pos); |
---|
2695 | _array[pos] = _array.back(); |
---|
2696 | _array.pop_back(); |
---|
2697 | } |
---|
2698 | } |
---|
2699 | Parent::erase(keys); |
---|
2700 | } |
---|
2701 | |
---|
2702 | virtual void build() { |
---|
2703 | Parent::build(); |
---|
2704 | typename Parent::Notifier* nf = Parent::notifier(); |
---|
2705 | Key it; |
---|
2706 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
2707 | Parent::set(it, _array.size()); |
---|
2708 | _array.push_back(it); |
---|
2709 | } |
---|
2710 | _sep = 0; |
---|
2711 | } |
---|
2712 | |
---|
2713 | virtual void clear() { |
---|
2714 | _array.clear(); |
---|
2715 | _sep = 0; |
---|
2716 | Parent::clear(); |
---|
2717 | } |
---|
2718 | |
---|
2719 | }; |
---|
2720 | |
---|
2721 | |
---|
2722 | namespace _maps_bits { |
---|
2723 | template <typename Item> |
---|
2724 | struct IterableIntMapNode { |
---|
2725 | IterableIntMapNode() : value(-1) {} |
---|
2726 | IterableIntMapNode(int _value) : value(_value) {} |
---|
2727 | Item prev, next; |
---|
2728 | int value; |
---|
2729 | }; |
---|
2730 | } |
---|
2731 | |
---|
2732 | /// \brief Dynamic iterable integer map. |
---|
2733 | /// |
---|
2734 | /// This class provides a special graph map type which can store an |
---|
2735 | /// integer value for graph items (\c Node, \c Arc or \c Edge). |
---|
2736 | /// For each non-negative value it is possible to iterate on the keys |
---|
2737 | /// mapped to the value. |
---|
2738 | /// |
---|
2739 | /// This map is intended to be used with small integer values, for which |
---|
2740 | /// it is efficient, and supports iteration only for non-negative values. |
---|
2741 | /// If you need large values and/or iteration for negative integers, |
---|
2742 | /// consider to use \ref IterableValueMap instead. |
---|
2743 | /// |
---|
2744 | /// This type is a reference map, so it can be modified with the |
---|
2745 | /// subscript operator. |
---|
2746 | /// |
---|
2747 | /// \note The size of the data structure depends on the largest |
---|
2748 | /// value in the map. |
---|
2749 | /// |
---|
2750 | /// \tparam GR The graph type. |
---|
2751 | /// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or |
---|
2752 | /// \c GR::Edge). |
---|
2753 | /// |
---|
2754 | /// \see IterableBoolMap, IterableValueMap |
---|
2755 | /// \see CrossRefMap |
---|
2756 | template <typename GR, typename K> |
---|
2757 | class IterableIntMap |
---|
2758 | : protected ItemSetTraits<GR, K>:: |
---|
2759 | template Map<_maps_bits::IterableIntMapNode<K> >::Type { |
---|
2760 | public: |
---|
2761 | typedef typename ItemSetTraits<GR, K>:: |
---|
2762 | template Map<_maps_bits::IterableIntMapNode<K> >::Type Parent; |
---|
2763 | |
---|
2764 | /// The key type |
---|
2765 | typedef K Key; |
---|
2766 | /// The value type |
---|
2767 | typedef int Value; |
---|
2768 | /// The graph type |
---|
2769 | typedef GR Graph; |
---|
2770 | |
---|
2771 | /// \brief Constructor of the map. |
---|
2772 | /// |
---|
2773 | /// Constructor of the map. It sets all values to -1. |
---|
2774 | explicit IterableIntMap(const Graph& graph) |
---|
2775 | : Parent(graph) {} |
---|
2776 | |
---|
2777 | /// \brief Constructor of the map with a given value. |
---|
2778 | /// |
---|
2779 | /// Constructor of the map with a given value. |
---|
2780 | explicit IterableIntMap(const Graph& graph, int value) |
---|
2781 | : Parent(graph, _maps_bits::IterableIntMapNode<K>(value)) { |
---|
2782 | if (value >= 0) { |
---|
2783 | for (typename Parent::ItemIt it(*this); it != INVALID; ++it) { |
---|
2784 | lace(it); |
---|
2785 | } |
---|
2786 | } |
---|
2787 | } |
---|
2788 | |
---|
2789 | private: |
---|
2790 | |
---|
2791 | void unlace(const Key& key) { |
---|
2792 | typename Parent::Value& node = Parent::operator[](key); |
---|
2793 | if (node.value < 0) return; |
---|
2794 | if (node.prev != INVALID) { |
---|
2795 | Parent::operator[](node.prev).next = node.next; |
---|
2796 | } else { |
---|
2797 | _first[node.value] = node.next; |
---|
2798 | } |
---|
2799 | if (node.next != INVALID) { |
---|
2800 | Parent::operator[](node.next).prev = node.prev; |
---|
2801 | } |
---|
2802 | while (!_first.empty() && _first.back() == INVALID) { |
---|
2803 | _first.pop_back(); |
---|
2804 | } |
---|
2805 | } |
---|
2806 | |
---|
2807 | void lace(const Key& key) { |
---|
2808 | typename Parent::Value& node = Parent::operator[](key); |
---|
2809 | if (node.value < 0) return; |
---|
2810 | if (node.value >= int(_first.size())) { |
---|
2811 | _first.resize(node.value + 1, INVALID); |
---|
2812 | } |
---|
2813 | node.prev = INVALID; |
---|
2814 | node.next = _first[node.value]; |
---|
2815 | if (node.next != INVALID) { |
---|
2816 | Parent::operator[](node.next).prev = key; |
---|
2817 | } |
---|
2818 | _first[node.value] = key; |
---|
2819 | } |
---|
2820 | |
---|
2821 | public: |
---|
2822 | |
---|
2823 | /// Indicates that the map is reference map. |
---|
2824 | typedef True ReferenceMapTag; |
---|
2825 | |
---|
2826 | /// \brief Reference to the value of the map. |
---|
2827 | /// |
---|
2828 | /// This class is similar to the \c int type. It can |
---|
2829 | /// be converted to \c int and it has the same operators. |
---|
2830 | class Reference { |
---|
2831 | friend class IterableIntMap; |
---|
2832 | private: |
---|
2833 | Reference(IterableIntMap& map, const Key& key) |
---|
2834 | : _key(key), _map(map) {} |
---|
2835 | public: |
---|
2836 | |
---|
2837 | Reference& operator=(const Reference& value) { |
---|
2838 | _map.set(_key, static_cast<const int&>(value)); |
---|
2839 | return *this; |
---|
2840 | } |
---|
2841 | |
---|
2842 | operator const int&() const { |
---|
2843 | return static_cast<const IterableIntMap&>(_map)[_key]; |
---|
2844 | } |
---|
2845 | |
---|
2846 | Reference& operator=(int value) { |
---|
2847 | _map.set(_key, value); |
---|
2848 | return *this; |
---|
2849 | } |
---|
2850 | Reference& operator++() { |
---|
2851 | _map.set(_key, _map[_key] + 1); |
---|
2852 | return *this; |
---|
2853 | } |
---|
2854 | int operator++(int) { |
---|
2855 | int value = _map[_key]; |
---|
2856 | _map.set(_key, value + 1); |
---|
2857 | return value; |
---|
2858 | } |
---|
2859 | Reference& operator--() { |
---|
2860 | _map.set(_key, _map[_key] - 1); |
---|
2861 | return *this; |
---|
2862 | } |
---|
2863 | int operator--(int) { |
---|
2864 | int value = _map[_key]; |
---|
2865 | _map.set(_key, value - 1); |
---|
2866 | return value; |
---|
2867 | } |
---|
2868 | Reference& operator+=(int value) { |
---|
2869 | _map.set(_key, _map[_key] + value); |
---|
2870 | return *this; |
---|
2871 | } |
---|
2872 | Reference& operator-=(int value) { |
---|
2873 | _map.set(_key, _map[_key] - value); |
---|
2874 | return *this; |
---|
2875 | } |
---|
2876 | Reference& operator*=(int value) { |
---|
2877 | _map.set(_key, _map[_key] * value); |
---|
2878 | return *this; |
---|
2879 | } |
---|
2880 | Reference& operator/=(int value) { |
---|
2881 | _map.set(_key, _map[_key] / value); |
---|
2882 | return *this; |
---|
2883 | } |
---|
2884 | Reference& operator%=(int value) { |
---|
2885 | _map.set(_key, _map[_key] % value); |
---|
2886 | return *this; |
---|
2887 | } |
---|
2888 | Reference& operator&=(int value) { |
---|
2889 | _map.set(_key, _map[_key] & value); |
---|
2890 | return *this; |
---|
2891 | } |
---|
2892 | Reference& operator|=(int value) { |
---|
2893 | _map.set(_key, _map[_key] | value); |
---|
2894 | return *this; |
---|
2895 | } |
---|
2896 | Reference& operator^=(int value) { |
---|
2897 | _map.set(_key, _map[_key] ^ value); |
---|
2898 | return *this; |
---|
2899 | } |
---|
2900 | Reference& operator<<=(int value) { |
---|
2901 | _map.set(_key, _map[_key] << value); |
---|
2902 | return *this; |
---|
2903 | } |
---|
2904 | Reference& operator>>=(int value) { |
---|
2905 | _map.set(_key, _map[_key] >> value); |
---|
2906 | return *this; |
---|
2907 | } |
---|
2908 | |
---|
2909 | private: |
---|
2910 | Key _key; |
---|
2911 | IterableIntMap& _map; |
---|
2912 | }; |
---|
2913 | |
---|
2914 | /// The const reference type. |
---|
2915 | typedef const Value& ConstReference; |
---|
2916 | |
---|
2917 | /// \brief Gives back the maximal value plus one. |
---|
2918 | /// |
---|
2919 | /// Gives back the maximal value plus one. |
---|
2920 | int size() const { |
---|
2921 | return _first.size(); |
---|
2922 | } |
---|
2923 | |
---|
2924 | /// \brief Set operation of the map. |
---|
2925 | /// |
---|
2926 | /// Set operation of the map. |
---|
2927 | void set(const Key& key, const Value& value) { |
---|
2928 | unlace(key); |
---|
2929 | Parent::operator[](key).value = value; |
---|
2930 | lace(key); |
---|
2931 | } |
---|
2932 | |
---|
2933 | /// \brief Const subscript operator of the map. |
---|
2934 | /// |
---|
2935 | /// Const subscript operator of the map. |
---|
2936 | const Value& operator[](const Key& key) const { |
---|
2937 | return Parent::operator[](key).value; |
---|
2938 | } |
---|
2939 | |
---|
2940 | /// \brief Subscript operator of the map. |
---|
2941 | /// |
---|
2942 | /// Subscript operator of the map. |
---|
2943 | Reference operator[](const Key& key) { |
---|
2944 | return Reference(*this, key); |
---|
2945 | } |
---|
2946 | |
---|
2947 | /// \brief Iterator for the keys with the same value. |
---|
2948 | /// |
---|
2949 | /// Iterator for the keys with the same value. It works |
---|
2950 | /// like a graph item iterator, it can be converted to |
---|
2951 | /// the item type of the map, incremented with \c ++ operator, and |
---|
2952 | /// if the iterator leaves the last valid item, it will be equal to |
---|
2953 | /// \c INVALID. |
---|
2954 | class ItemIt : public Key { |
---|
2955 | public: |
---|
2956 | typedef Key Parent; |
---|
2957 | |
---|
2958 | /// \brief Invalid constructor \& conversion. |
---|
2959 | /// |
---|
2960 | /// This constructor initializes the iterator to be invalid. |
---|
2961 | /// \sa Invalid for more details. |
---|
2962 | ItemIt(Invalid) : Parent(INVALID), _map(0) {} |
---|
2963 | |
---|
2964 | /// \brief Creates an iterator with a value. |
---|
2965 | /// |
---|
2966 | /// Creates an iterator with a value. It iterates on the |
---|
2967 | /// keys mapped to the given value. |
---|
2968 | /// \param map The IterableIntMap. |
---|
2969 | /// \param value The value. |
---|
2970 | ItemIt(const IterableIntMap& map, int value) : _map(&map) { |
---|
2971 | if (value < 0 || value >= int(_map->_first.size())) { |
---|
2972 | Parent::operator=(INVALID); |
---|
2973 | } else { |
---|
2974 | Parent::operator=(_map->_first[value]); |
---|
2975 | } |
---|
2976 | } |
---|
2977 | |
---|
2978 | /// \brief Increment operator. |
---|
2979 | /// |
---|
2980 | /// Increment operator. |
---|
2981 | ItemIt& operator++() { |
---|
2982 | Parent::operator=(_map->IterableIntMap::Parent:: |
---|
2983 | operator[](static_cast<Parent&>(*this)).next); |
---|
2984 | return *this; |
---|
2985 | } |
---|
2986 | |
---|
2987 | private: |
---|
2988 | const IterableIntMap* _map; |
---|
2989 | }; |
---|
2990 | |
---|
2991 | protected: |
---|
2992 | |
---|
2993 | virtual void erase(const Key& key) { |
---|
2994 | unlace(key); |
---|
2995 | Parent::erase(key); |
---|
2996 | } |
---|
2997 | |
---|
2998 | virtual void erase(const std::vector<Key>& keys) { |
---|
2999 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
3000 | unlace(keys[i]); |
---|
3001 | } |
---|
3002 | Parent::erase(keys); |
---|
3003 | } |
---|
3004 | |
---|
3005 | virtual void clear() { |
---|
3006 | _first.clear(); |
---|
3007 | Parent::clear(); |
---|
3008 | } |
---|
3009 | |
---|
3010 | private: |
---|
3011 | std::vector<Key> _first; |
---|
3012 | }; |
---|
3013 | |
---|
3014 | namespace _maps_bits { |
---|
3015 | template <typename Item, typename Value> |
---|
3016 | struct IterableValueMapNode { |
---|
3017 | IterableValueMapNode(Value _value = Value()) : value(_value) {} |
---|
3018 | Item prev, next; |
---|
3019 | Value value; |
---|
3020 | }; |
---|
3021 | } |
---|
3022 | |
---|
3023 | /// \brief Dynamic iterable map for comparable values. |
---|
3024 | /// |
---|
3025 | /// This class provides a special graph map type which can store a |
---|
3026 | /// comparable value for graph items (\c Node, \c Arc or \c Edge). |
---|
3027 | /// For each value it is possible to iterate on the keys mapped to |
---|
3028 | /// the value (\c ItemIt), and the values of the map can be accessed |
---|
3029 | /// with an STL compatible forward iterator (\c ValueIt). |
---|
3030 | /// The map stores a linked list for each value, which contains |
---|
3031 | /// the items mapped to the value, and the used values are stored |
---|
3032 | /// in balanced binary tree (\c std::map). |
---|
3033 | /// |
---|
3034 | /// \ref IterableBoolMap and \ref IterableIntMap are similar classes |
---|
3035 | /// specialized for \c bool and \c int values, respectively. |
---|
3036 | /// |
---|
3037 | /// This type is not reference map, so it cannot be modified with |
---|
3038 | /// the subscript operator. |
---|
3039 | /// |
---|
3040 | /// \tparam GR The graph type. |
---|
3041 | /// \tparam K The key type of the map (\c GR::Node, \c GR::Arc or |
---|
3042 | /// \c GR::Edge). |
---|
3043 | /// \tparam V The value type of the map. It can be any comparable |
---|
3044 | /// value type. |
---|
3045 | /// |
---|
3046 | /// \see IterableBoolMap, IterableIntMap |
---|
3047 | /// \see CrossRefMap |
---|
3048 | template <typename GR, typename K, typename V> |
---|
3049 | class IterableValueMap |
---|
3050 | : protected ItemSetTraits<GR, K>:: |
---|
3051 | template Map<_maps_bits::IterableValueMapNode<K, V> >::Type { |
---|
3052 | public: |
---|
3053 | typedef typename ItemSetTraits<GR, K>:: |
---|
3054 | template Map<_maps_bits::IterableValueMapNode<K, V> >::Type Parent; |
---|
3055 | |
---|
3056 | /// The key type |
---|
3057 | typedef K Key; |
---|
3058 | /// The value type |
---|
3059 | typedef V Value; |
---|
3060 | /// The graph type |
---|
3061 | typedef GR Graph; |
---|
3062 | |
---|
3063 | public: |
---|
3064 | |
---|
3065 | /// \brief Constructor of the map with a given value. |
---|
3066 | /// |
---|
3067 | /// Constructor of the map with a given value. |
---|
3068 | explicit IterableValueMap(const Graph& graph, |
---|
3069 | const Value& value = Value()) |
---|
3070 | : Parent(graph, _maps_bits::IterableValueMapNode<K, V>(value)) { |
---|
3071 | for (typename Parent::ItemIt it(*this); it != INVALID; ++it) { |
---|
3072 | lace(it); |
---|
3073 | } |
---|
3074 | } |
---|
3075 | |
---|
3076 | protected: |
---|
3077 | |
---|
3078 | void unlace(const Key& key) { |
---|
3079 | typename Parent::Value& node = Parent::operator[](key); |
---|
3080 | if (node.prev != INVALID) { |
---|
3081 | Parent::operator[](node.prev).next = node.next; |
---|
3082 | } else { |
---|
3083 | if (node.next != INVALID) { |
---|
3084 | _first[node.value] = node.next; |
---|
3085 | } else { |
---|
3086 | _first.erase(node.value); |
---|
3087 | } |
---|
3088 | } |
---|
3089 | if (node.next != INVALID) { |
---|
3090 | Parent::operator[](node.next).prev = node.prev; |
---|
3091 | } |
---|
3092 | } |
---|
3093 | |
---|
3094 | void lace(const Key& key) { |
---|
3095 | typename Parent::Value& node = Parent::operator[](key); |
---|
3096 | typename std::map<Value, Key>::iterator it = _first.find(node.value); |
---|
3097 | if (it == _first.end()) { |
---|
3098 | node.prev = node.next = INVALID; |
---|
3099 | _first.insert(std::make_pair(node.value, key)); |
---|
3100 | } else { |
---|
3101 | node.prev = INVALID; |
---|
3102 | node.next = it->second; |
---|
3103 | if (node.next != INVALID) { |
---|
3104 | Parent::operator[](node.next).prev = key; |
---|
3105 | } |
---|
3106 | it->second = key; |
---|
3107 | } |
---|
3108 | } |
---|
3109 | |
---|
3110 | public: |
---|
3111 | |
---|
3112 | /// \brief Forward iterator for values. |
---|
3113 | /// |
---|
3114 | /// This iterator is an STL compatible forward |
---|
3115 | /// iterator on the values of the map. The values can |
---|
3116 | /// be accessed in the <tt>[beginValue, endValue)</tt> range. |
---|
3117 | class ValueIt |
---|
3118 | : public std::iterator<std::forward_iterator_tag, Value> { |
---|
3119 | friend class IterableValueMap; |
---|
3120 | private: |
---|
3121 | ValueIt(typename std::map<Value, Key>::const_iterator _it) |
---|
3122 | : it(_it) {} |
---|
3123 | public: |
---|
3124 | |
---|
3125 | /// Constructor |
---|
3126 | ValueIt() {} |
---|
3127 | |
---|
3128 | /// \e |
---|
3129 | ValueIt& operator++() { ++it; return *this; } |
---|
3130 | /// \e |
---|
3131 | ValueIt operator++(int) { |
---|
3132 | ValueIt tmp(*this); |
---|
3133 | operator++(); |
---|
3134 | return tmp; |
---|
3135 | } |
---|
3136 | |
---|
3137 | /// \e |
---|
3138 | const Value& operator*() const { return it->first; } |
---|
3139 | /// \e |
---|
3140 | const Value* operator->() const { return &(it->first); } |
---|
3141 | |
---|
3142 | /// \e |
---|
3143 | bool operator==(ValueIt jt) const { return it == jt.it; } |
---|
3144 | /// \e |
---|
3145 | bool operator!=(ValueIt jt) const { return it != jt.it; } |
---|
3146 | |
---|
3147 | private: |
---|
3148 | typename std::map<Value, Key>::const_iterator it; |
---|
3149 | }; |
---|
3150 | |
---|
3151 | /// \brief Returns an iterator to the first value. |
---|
3152 | /// |
---|
3153 | /// Returns an STL compatible iterator to the |
---|
3154 | /// first value of the map. The values of the |
---|
3155 | /// map can be accessed in the <tt>[beginValue, endValue)</tt> |
---|
3156 | /// range. |
---|
3157 | ValueIt beginValue() const { |
---|
3158 | return ValueIt(_first.begin()); |
---|
3159 | } |
---|
3160 | |
---|
3161 | /// \brief Returns an iterator after the last value. |
---|
3162 | /// |
---|
3163 | /// Returns an STL compatible iterator after the |
---|
3164 | /// last value of the map. The values of the |
---|
3165 | /// map can be accessed in the <tt>[beginValue, endValue)</tt> |
---|
3166 | /// range. |
---|
3167 | ValueIt endValue() const { |
---|
3168 | return ValueIt(_first.end()); |
---|
3169 | } |
---|
3170 | |
---|
3171 | /// \brief Set operation of the map. |
---|
3172 | /// |
---|
3173 | /// Set operation of the map. |
---|
3174 | void set(const Key& key, const Value& value) { |
---|
3175 | unlace(key); |
---|
3176 | Parent::operator[](key).value = value; |
---|
3177 | lace(key); |
---|
3178 | } |
---|
3179 | |
---|
3180 | /// \brief Const subscript operator of the map. |
---|
3181 | /// |
---|
3182 | /// Const subscript operator of the map. |
---|
3183 | const Value& operator[](const Key& key) const { |
---|
3184 | return Parent::operator[](key).value; |
---|
3185 | } |
---|
3186 | |
---|
3187 | /// \brief Iterator for the keys with the same value. |
---|
3188 | /// |
---|
3189 | /// Iterator for the keys with the same value. It works |
---|
3190 | /// like a graph item iterator, it can be converted to |
---|
3191 | /// the item type of the map, incremented with \c ++ operator, and |
---|
3192 | /// if the iterator leaves the last valid item, it will be equal to |
---|
3193 | /// \c INVALID. |
---|
3194 | class ItemIt : public Key { |
---|
3195 | public: |
---|
3196 | typedef Key Parent; |
---|
3197 | |
---|
3198 | /// \brief Invalid constructor \& conversion. |
---|
3199 | /// |
---|
3200 | /// This constructor initializes the iterator to be invalid. |
---|
3201 | /// \sa Invalid for more details. |
---|
3202 | ItemIt(Invalid) : Parent(INVALID), _map(0) {} |
---|
3203 | |
---|
3204 | /// \brief Creates an iterator with a value. |
---|
3205 | /// |
---|
3206 | /// Creates an iterator with a value. It iterates on the |
---|
3207 | /// keys which have the given value. |
---|
3208 | /// \param map The IterableValueMap |
---|
3209 | /// \param value The value |
---|
3210 | ItemIt(const IterableValueMap& map, const Value& value) : _map(&map) { |
---|
3211 | typename std::map<Value, Key>::const_iterator it = |
---|
3212 | map._first.find(value); |
---|
3213 | if (it == map._first.end()) { |
---|
3214 | Parent::operator=(INVALID); |
---|
3215 | } else { |
---|
3216 | Parent::operator=(it->second); |
---|
3217 | } |
---|
3218 | } |
---|
3219 | |
---|
3220 | /// \brief Increment operator. |
---|
3221 | /// |
---|
3222 | /// Increment Operator. |
---|
3223 | ItemIt& operator++() { |
---|
3224 | Parent::operator=(_map->IterableValueMap::Parent:: |
---|
3225 | operator[](static_cast<Parent&>(*this)).next); |
---|
3226 | return *this; |
---|
3227 | } |
---|
3228 | |
---|
3229 | |
---|
3230 | private: |
---|
3231 | const IterableValueMap* _map; |
---|
3232 | }; |
---|
3233 | |
---|
3234 | protected: |
---|
3235 | |
---|
3236 | virtual void add(const Key& key) { |
---|
3237 | Parent::add(key); |
---|
3238 | unlace(key); |
---|
3239 | } |
---|
3240 | |
---|
3241 | virtual void add(const std::vector<Key>& keys) { |
---|
3242 | Parent::add(keys); |
---|
3243 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
3244 | lace(keys[i]); |
---|
3245 | } |
---|
3246 | } |
---|
3247 | |
---|
3248 | virtual void erase(const Key& key) { |
---|
3249 | unlace(key); |
---|
3250 | Parent::erase(key); |
---|
3251 | } |
---|
3252 | |
---|
3253 | virtual void erase(const std::vector<Key>& keys) { |
---|
3254 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
3255 | unlace(keys[i]); |
---|
3256 | } |
---|
3257 | Parent::erase(keys); |
---|
3258 | } |
---|
3259 | |
---|
3260 | virtual void build() { |
---|
3261 | Parent::build(); |
---|
3262 | for (typename Parent::ItemIt it(*this); it != INVALID; ++it) { |
---|
3263 | lace(it); |
---|
3264 | } |
---|
3265 | } |
---|
3266 | |
---|
3267 | virtual void clear() { |
---|
3268 | _first.clear(); |
---|
3269 | Parent::clear(); |
---|
3270 | } |
---|
3271 | |
---|
3272 | private: |
---|
3273 | std::map<Value, Key> _first; |
---|
3274 | }; |
---|
3275 | |
---|
3276 | /// \brief Map of the source nodes of arcs in a digraph. |
---|
3277 | /// |
---|
3278 | /// SourceMap provides access for the source node of each arc in a digraph, |
---|
3279 | /// which is returned by the \c source() function of the digraph. |
---|
3280 | /// \tparam GR The digraph type. |
---|
3281 | /// \see TargetMap |
---|
3282 | template <typename GR> |
---|
3283 | class SourceMap { |
---|
3284 | public: |
---|
3285 | |
---|
3286 | /// The key type (the \c Arc type of the digraph). |
---|
3287 | typedef typename GR::Arc Key; |
---|
3288 | /// The value type (the \c Node type of the digraph). |
---|
3289 | typedef typename GR::Node Value; |
---|
3290 | |
---|
3291 | /// \brief Constructor |
---|
3292 | /// |
---|
3293 | /// Constructor. |
---|
3294 | /// \param digraph The digraph that the map belongs to. |
---|
3295 | explicit SourceMap(const GR& digraph) : _graph(digraph) {} |
---|
3296 | |
---|
3297 | /// \brief Returns the source node of the given arc. |
---|
3298 | /// |
---|
3299 | /// Returns the source node of the given arc. |
---|
3300 | Value operator[](const Key& arc) const { |
---|
3301 | return _graph.source(arc); |
---|
3302 | } |
---|
3303 | |
---|
3304 | private: |
---|
3305 | const GR& _graph; |
---|
3306 | }; |
---|
3307 | |
---|
3308 | /// \brief Returns a \c SourceMap class. |
---|
3309 | /// |
---|
3310 | /// This function just returns an \c SourceMap class. |
---|
3311 | /// \relates SourceMap |
---|
3312 | template <typename GR> |
---|
3313 | inline SourceMap<GR> sourceMap(const GR& graph) { |
---|
3314 | return SourceMap<GR>(graph); |
---|
3315 | } |
---|
3316 | |
---|
3317 | /// \brief Map of the target nodes of arcs in a digraph. |
---|
3318 | /// |
---|
3319 | /// TargetMap provides access for the target node of each arc in a digraph, |
---|
3320 | /// which is returned by the \c target() function of the digraph. |
---|
3321 | /// \tparam GR The digraph type. |
---|
3322 | /// \see SourceMap |
---|
3323 | template <typename GR> |
---|
3324 | class TargetMap { |
---|
3325 | public: |
---|
3326 | |
---|
3327 | /// The key type (the \c Arc type of the digraph). |
---|
3328 | typedef typename GR::Arc Key; |
---|
3329 | /// The value type (the \c Node type of the digraph). |
---|
3330 | typedef typename GR::Node Value; |
---|
3331 | |
---|
3332 | /// \brief Constructor |
---|
3333 | /// |
---|
3334 | /// Constructor. |
---|
3335 | /// \param digraph The digraph that the map belongs to. |
---|
3336 | explicit TargetMap(const GR& digraph) : _graph(digraph) {} |
---|
3337 | |
---|
3338 | /// \brief Returns the target node of the given arc. |
---|
3339 | /// |
---|
3340 | /// Returns the target node of the given arc. |
---|
3341 | Value operator[](const Key& e) const { |
---|
3342 | return _graph.target(e); |
---|
3343 | } |
---|
3344 | |
---|
3345 | private: |
---|
3346 | const GR& _graph; |
---|
3347 | }; |
---|
3348 | |
---|
3349 | /// \brief Returns a \c TargetMap class. |
---|
3350 | /// |
---|
3351 | /// This function just returns a \c TargetMap class. |
---|
3352 | /// \relates TargetMap |
---|
3353 | template <typename GR> |
---|
3354 | inline TargetMap<GR> targetMap(const GR& graph) { |
---|
3355 | return TargetMap<GR>(graph); |
---|
3356 | } |
---|
3357 | |
---|
3358 | /// \brief Map of the "forward" directed arc view of edges in a graph. |
---|
3359 | /// |
---|
3360 | /// ForwardMap provides access for the "forward" directed arc view of |
---|
3361 | /// each edge in a graph, which is returned by the \c direct() function |
---|
3362 | /// of the graph with \c true parameter. |
---|
3363 | /// \tparam GR The graph type. |
---|
3364 | /// \see BackwardMap |
---|
3365 | template <typename GR> |
---|
3366 | class ForwardMap { |
---|
3367 | public: |
---|
3368 | |
---|
3369 | /// The key type (the \c Edge type of the digraph). |
---|
3370 | typedef typename GR::Edge Key; |
---|
3371 | /// The value type (the \c Arc type of the digraph). |
---|
3372 | typedef typename GR::Arc Value; |
---|
3373 | |
---|
3374 | /// \brief Constructor |
---|
3375 | /// |
---|
3376 | /// Constructor. |
---|
3377 | /// \param graph The graph that the map belongs to. |
---|
3378 | explicit ForwardMap(const GR& graph) : _graph(graph) {} |
---|
3379 | |
---|
3380 | /// \brief Returns the "forward" directed arc view of the given edge. |
---|
3381 | /// |
---|
3382 | /// Returns the "forward" directed arc view of the given edge. |
---|
3383 | Value operator[](const Key& key) const { |
---|
3384 | return _graph.direct(key, true); |
---|
3385 | } |
---|
3386 | |
---|
3387 | private: |
---|
3388 | const GR& _graph; |
---|
3389 | }; |
---|
3390 | |
---|
3391 | /// \brief Returns a \c ForwardMap class. |
---|
3392 | /// |
---|
3393 | /// This function just returns an \c ForwardMap class. |
---|
3394 | /// \relates ForwardMap |
---|
3395 | template <typename GR> |
---|
3396 | inline ForwardMap<GR> forwardMap(const GR& graph) { |
---|
3397 | return ForwardMap<GR>(graph); |
---|
3398 | } |
---|
3399 | |
---|
3400 | /// \brief Map of the "backward" directed arc view of edges in a graph. |
---|
3401 | /// |
---|
3402 | /// BackwardMap provides access for the "backward" directed arc view of |
---|
3403 | /// each edge in a graph, which is returned by the \c direct() function |
---|
3404 | /// of the graph with \c false parameter. |
---|
3405 | /// \tparam GR The graph type. |
---|
3406 | /// \see ForwardMap |
---|
3407 | template <typename GR> |
---|
3408 | class BackwardMap { |
---|
3409 | public: |
---|
3410 | |
---|
3411 | /// The key type (the \c Edge type of the digraph). |
---|
3412 | typedef typename GR::Edge Key; |
---|
3413 | /// The value type (the \c Arc type of the digraph). |
---|
3414 | typedef typename GR::Arc Value; |
---|
3415 | |
---|
3416 | /// \brief Constructor |
---|
3417 | /// |
---|
3418 | /// Constructor. |
---|
3419 | /// \param graph The graph that the map belongs to. |
---|
3420 | explicit BackwardMap(const GR& graph) : _graph(graph) {} |
---|
3421 | |
---|
3422 | /// \brief Returns the "backward" directed arc view of the given edge. |
---|
3423 | /// |
---|
3424 | /// Returns the "backward" directed arc view of the given edge. |
---|
3425 | Value operator[](const Key& key) const { |
---|
3426 | return _graph.direct(key, false); |
---|
3427 | } |
---|
3428 | |
---|
3429 | private: |
---|
3430 | const GR& _graph; |
---|
3431 | }; |
---|
3432 | |
---|
3433 | /// \brief Returns a \c BackwardMap class |
---|
3434 | |
---|
3435 | /// This function just returns a \c BackwardMap class. |
---|
3436 | /// \relates BackwardMap |
---|
3437 | template <typename GR> |
---|
3438 | inline BackwardMap<GR> backwardMap(const GR& graph) { |
---|
3439 | return BackwardMap<GR>(graph); |
---|
3440 | } |
---|
3441 | |
---|
3442 | /// \brief Map of the in-degrees of nodes in a digraph. |
---|
3443 | /// |
---|
3444 | /// This map returns the in-degree of a node. Once it is constructed, |
---|
3445 | /// the degrees are stored in a standard \c NodeMap, so each query is done |
---|
3446 | /// in constant time. On the other hand, the values are updated automatically |
---|
3447 | /// whenever the digraph changes. |
---|
3448 | /// |
---|
3449 | /// \warning Besides \c addNode() and \c addArc(), a digraph structure |
---|
3450 | /// may provide alternative ways to modify the digraph. |
---|
3451 | /// The correct behavior of InDegMap is not guarantied if these additional |
---|
3452 | /// features are used. For example the functions |
---|
3453 | /// \ref ListDigraph::changeSource() "changeSource()", |
---|
3454 | /// \ref ListDigraph::changeTarget() "changeTarget()" and |
---|
3455 | /// \ref ListDigraph::reverseArc() "reverseArc()" |
---|
3456 | /// of \ref ListDigraph will \e not update the degree values correctly. |
---|
3457 | /// |
---|
3458 | /// \sa OutDegMap |
---|
3459 | template <typename GR> |
---|
3460 | class InDegMap |
---|
3461 | : protected ItemSetTraits<GR, typename GR::Arc> |
---|
3462 | ::ItemNotifier::ObserverBase { |
---|
3463 | |
---|
3464 | public: |
---|
3465 | |
---|
3466 | /// The graph type of InDegMap |
---|
3467 | typedef GR Graph; |
---|
3468 | typedef GR Digraph; |
---|
3469 | /// The key type |
---|
3470 | typedef typename Digraph::Node Key; |
---|
3471 | /// The value type |
---|
3472 | typedef int Value; |
---|
3473 | |
---|
3474 | typedef typename ItemSetTraits<Digraph, typename Digraph::Arc> |
---|
3475 | ::ItemNotifier::ObserverBase Parent; |
---|
3476 | |
---|
3477 | private: |
---|
3478 | |
---|
3479 | class AutoNodeMap |
---|
3480 | : public ItemSetTraits<Digraph, Key>::template Map<int>::Type { |
---|
3481 | public: |
---|
3482 | |
---|
3483 | typedef typename ItemSetTraits<Digraph, Key>:: |
---|
3484 | template Map<int>::Type Parent; |
---|
3485 | |
---|
3486 | AutoNodeMap(const Digraph& digraph) : Parent(digraph, 0) {} |
---|
3487 | |
---|
3488 | virtual void add(const Key& key) { |
---|
3489 | Parent::add(key); |
---|
3490 | Parent::set(key, 0); |
---|
3491 | } |
---|
3492 | |
---|
3493 | virtual void add(const std::vector<Key>& keys) { |
---|
3494 | Parent::add(keys); |
---|
3495 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
3496 | Parent::set(keys[i], 0); |
---|
3497 | } |
---|
3498 | } |
---|
3499 | |
---|
3500 | virtual void build() { |
---|
3501 | Parent::build(); |
---|
3502 | Key it; |
---|
3503 | typename Parent::Notifier* nf = Parent::notifier(); |
---|
3504 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
3505 | Parent::set(it, 0); |
---|
3506 | } |
---|
3507 | } |
---|
3508 | }; |
---|
3509 | |
---|
3510 | public: |
---|
3511 | |
---|
3512 | /// \brief Constructor. |
---|
3513 | /// |
---|
3514 | /// Constructor for creating an in-degree map. |
---|
3515 | explicit InDegMap(const Digraph& graph) |
---|
3516 | : _digraph(graph), _deg(graph) { |
---|
3517 | Parent::attach(_digraph.notifier(typename Digraph::Arc())); |
---|
3518 | |
---|
3519 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
3520 | _deg[it] = countInArcs(_digraph, it); |
---|
3521 | } |
---|
3522 | } |
---|
3523 | |
---|
3524 | /// \brief Gives back the in-degree of a Node. |
---|
3525 | /// |
---|
3526 | /// Gives back the in-degree of a Node. |
---|
3527 | int operator[](const Key& key) const { |
---|
3528 | return _deg[key]; |
---|
3529 | } |
---|
3530 | |
---|
3531 | protected: |
---|
3532 | |
---|
3533 | typedef typename Digraph::Arc Arc; |
---|
3534 | |
---|
3535 | virtual void add(const Arc& arc) { |
---|
3536 | ++_deg[_digraph.target(arc)]; |
---|
3537 | } |
---|
3538 | |
---|
3539 | virtual void add(const std::vector<Arc>& arcs) { |
---|
3540 | for (int i = 0; i < int(arcs.size()); ++i) { |
---|
3541 | ++_deg[_digraph.target(arcs[i])]; |
---|
3542 | } |
---|
3543 | } |
---|
3544 | |
---|
3545 | virtual void erase(const Arc& arc) { |
---|
3546 | --_deg[_digraph.target(arc)]; |
---|
3547 | } |
---|
3548 | |
---|
3549 | virtual void erase(const std::vector<Arc>& arcs) { |
---|
3550 | for (int i = 0; i < int(arcs.size()); ++i) { |
---|
3551 | --_deg[_digraph.target(arcs[i])]; |
---|
3552 | } |
---|
3553 | } |
---|
3554 | |
---|
3555 | virtual void build() { |
---|
3556 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
3557 | _deg[it] = countInArcs(_digraph, it); |
---|
3558 | } |
---|
3559 | } |
---|
3560 | |
---|
3561 | virtual void clear() { |
---|
3562 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
3563 | _deg[it] = 0; |
---|
3564 | } |
---|
3565 | } |
---|
3566 | private: |
---|
3567 | |
---|
3568 | const Digraph& _digraph; |
---|
3569 | AutoNodeMap _deg; |
---|
3570 | }; |
---|
3571 | |
---|
3572 | /// \brief Map of the out-degrees of nodes in a digraph. |
---|
3573 | /// |
---|
3574 | /// This map returns the out-degree of a node. Once it is constructed, |
---|
3575 | /// the degrees are stored in a standard \c NodeMap, so each query is done |
---|
3576 | /// in constant time. On the other hand, the values are updated automatically |
---|
3577 | /// whenever the digraph changes. |
---|
3578 | /// |
---|
3579 | /// \warning Besides \c addNode() and \c addArc(), a digraph structure |
---|
3580 | /// may provide alternative ways to modify the digraph. |
---|
3581 | /// The correct behavior of OutDegMap is not guarantied if these additional |
---|
3582 | /// features are used. For example the functions |
---|
3583 | /// \ref ListDigraph::changeSource() "changeSource()", |
---|
3584 | /// \ref ListDigraph::changeTarget() "changeTarget()" and |
---|
3585 | /// \ref ListDigraph::reverseArc() "reverseArc()" |
---|
3586 | /// of \ref ListDigraph will \e not update the degree values correctly. |
---|
3587 | /// |
---|
3588 | /// \sa InDegMap |
---|
3589 | template <typename GR> |
---|
3590 | class OutDegMap |
---|
3591 | : protected ItemSetTraits<GR, typename GR::Arc> |
---|
3592 | ::ItemNotifier::ObserverBase { |
---|
3593 | |
---|
3594 | public: |
---|
3595 | |
---|
3596 | /// The graph type of OutDegMap |
---|
3597 | typedef GR Graph; |
---|
3598 | typedef GR Digraph; |
---|
3599 | /// The key type |
---|
3600 | typedef typename Digraph::Node Key; |
---|
3601 | /// The value type |
---|
3602 | typedef int Value; |
---|
3603 | |
---|
3604 | typedef typename ItemSetTraits<Digraph, typename Digraph::Arc> |
---|
3605 | ::ItemNotifier::ObserverBase Parent; |
---|
3606 | |
---|
3607 | private: |
---|
3608 | |
---|
3609 | class AutoNodeMap |
---|
3610 | : public ItemSetTraits<Digraph, Key>::template Map<int>::Type { |
---|
3611 | public: |
---|
3612 | |
---|
3613 | typedef typename ItemSetTraits<Digraph, Key>:: |
---|
3614 | template Map<int>::Type Parent; |
---|
3615 | |
---|
3616 | AutoNodeMap(const Digraph& digraph) : Parent(digraph, 0) {} |
---|
3617 | |
---|
3618 | virtual void add(const Key& key) { |
---|
3619 | Parent::add(key); |
---|
3620 | Parent::set(key, 0); |
---|
3621 | } |
---|
3622 | virtual void add(const std::vector<Key>& keys) { |
---|
3623 | Parent::add(keys); |
---|
3624 | for (int i = 0; i < int(keys.size()); ++i) { |
---|
3625 | Parent::set(keys[i], 0); |
---|
3626 | } |
---|
3627 | } |
---|
3628 | virtual void build() { |
---|
3629 | Parent::build(); |
---|
3630 | Key it; |
---|
3631 | typename Parent::Notifier* nf = Parent::notifier(); |
---|
3632 | for (nf->first(it); it != INVALID; nf->next(it)) { |
---|
3633 | Parent::set(it, 0); |
---|
3634 | } |
---|
3635 | } |
---|
3636 | }; |
---|
3637 | |
---|
3638 | public: |
---|
3639 | |
---|
3640 | /// \brief Constructor. |
---|
3641 | /// |
---|
3642 | /// Constructor for creating an out-degree map. |
---|
3643 | explicit OutDegMap(const Digraph& graph) |
---|
3644 | : _digraph(graph), _deg(graph) { |
---|
3645 | Parent::attach(_digraph.notifier(typename Digraph::Arc())); |
---|
3646 | |
---|
3647 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
3648 | _deg[it] = countOutArcs(_digraph, it); |
---|
3649 | } |
---|
3650 | } |
---|
3651 | |
---|
3652 | /// \brief Gives back the out-degree of a Node. |
---|
3653 | /// |
---|
3654 | /// Gives back the out-degree of a Node. |
---|
3655 | int operator[](const Key& key) const { |
---|
3656 | return _deg[key]; |
---|
3657 | } |
---|
3658 | |
---|
3659 | protected: |
---|
3660 | |
---|
3661 | typedef typename Digraph::Arc Arc; |
---|
3662 | |
---|
3663 | virtual void add(const Arc& arc) { |
---|
3664 | ++_deg[_digraph.source(arc)]; |
---|
3665 | } |
---|
3666 | |
---|
3667 | virtual void add(const std::vector<Arc>& arcs) { |
---|
3668 | for (int i = 0; i < int(arcs.size()); ++i) { |
---|
3669 | ++_deg[_digraph.source(arcs[i])]; |
---|
3670 | } |
---|
3671 | } |
---|
3672 | |
---|
3673 | virtual void erase(const Arc& arc) { |
---|
3674 | --_deg[_digraph.source(arc)]; |
---|
3675 | } |
---|
3676 | |
---|
3677 | virtual void erase(const std::vector<Arc>& arcs) { |
---|
3678 | for (int i = 0; i < int(arcs.size()); ++i) { |
---|
3679 | --_deg[_digraph.source(arcs[i])]; |
---|
3680 | } |
---|
3681 | } |
---|
3682 | |
---|
3683 | virtual void build() { |
---|
3684 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
3685 | _deg[it] = countOutArcs(_digraph, it); |
---|
3686 | } |
---|
3687 | } |
---|
3688 | |
---|
3689 | virtual void clear() { |
---|
3690 | for(typename Digraph::NodeIt it(_digraph); it != INVALID; ++it) { |
---|
3691 | _deg[it] = 0; |
---|
3692 | } |
---|
3693 | } |
---|
3694 | private: |
---|
3695 | |
---|
3696 | const Digraph& _digraph; |
---|
3697 | AutoNodeMap _deg; |
---|
3698 | }; |
---|
3699 | |
---|
3700 | /// \brief Potential difference map |
---|
3701 | /// |
---|
3702 | /// PotentialDifferenceMap returns the difference between the potentials of |
---|
3703 | /// the source and target nodes of each arc in a digraph, i.e. it returns |
---|
3704 | /// \code |
---|
3705 | /// potential[gr.target(arc)] - potential[gr.source(arc)]. |
---|
3706 | /// \endcode |
---|
3707 | /// \tparam GR The digraph type. |
---|
3708 | /// \tparam POT A node map storing the potentials. |
---|
3709 | template <typename GR, typename POT> |
---|
3710 | class PotentialDifferenceMap { |
---|
3711 | public: |
---|
3712 | /// Key type |
---|
3713 | typedef typename GR::Arc Key; |
---|
3714 | /// Value type |
---|
3715 | typedef typename POT::Value Value; |
---|
3716 | |
---|
3717 | /// \brief Constructor |
---|
3718 | /// |
---|
3719 | /// Contructor of the map. |
---|
3720 | explicit PotentialDifferenceMap(const GR& gr, |
---|
3721 | const POT& potential) |
---|
3722 | : _digraph(gr), _potential(potential) {} |
---|
3723 | |
---|
3724 | /// \brief Returns the potential difference for the given arc. |
---|
3725 | /// |
---|
3726 | /// Returns the potential difference for the given arc, i.e. |
---|
3727 | /// \code |
---|
3728 | /// potential[gr.target(arc)] - potential[gr.source(arc)]. |
---|
3729 | /// \endcode |
---|
3730 | Value operator[](const Key& arc) const { |
---|
3731 | return _potential[_digraph.target(arc)] - |
---|
3732 | _potential[_digraph.source(arc)]; |
---|
3733 | } |
---|
3734 | |
---|
3735 | private: |
---|
3736 | const GR& _digraph; |
---|
3737 | const POT& _potential; |
---|
3738 | }; |
---|
3739 | |
---|
3740 | /// \brief Returns a PotentialDifferenceMap. |
---|
3741 | /// |
---|
3742 | /// This function just returns a PotentialDifferenceMap. |
---|
3743 | /// \relates PotentialDifferenceMap |
---|
3744 | template <typename GR, typename POT> |
---|
3745 | PotentialDifferenceMap<GR, POT> |
---|
3746 | potentialDifferenceMap(const GR& gr, const POT& potential) { |
---|
3747 | return PotentialDifferenceMap<GR, POT>(gr, potential); |
---|
3748 | } |
---|
3749 | |
---|
3750 | /// @} |
---|
3751 | } |
---|
3752 | |
---|
3753 | #endif // LEMON_MAPS_H |
---|