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 | ///\ingroup graph_concepts |
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20 | ///\file |
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21 | ///\brief The concept of graph components. |
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22 | |
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23 | #ifndef LEMON_CONCEPTS_GRAPH_COMPONENTS_H |
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24 | #define LEMON_CONCEPTS_GRAPH_COMPONENTS_H |
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25 | |
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26 | #include <lemon/core.h> |
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27 | #include <lemon/concepts/maps.h> |
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28 | |
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29 | #include <lemon/bits/alteration_notifier.h> |
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30 | |
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31 | namespace lemon { |
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32 | namespace concepts { |
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33 | |
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34 | /// \brief Concept class for \c Node, \c Arc and \c Edge types. |
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35 | /// |
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36 | /// This class describes the concept of \c Node, \c Arc and \c Edge |
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37 | /// subtypes of digraph and graph types. |
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38 | /// |
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39 | /// \note This class is a template class so that we can use it to |
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40 | /// create graph skeleton classes. The reason for this is that \c Node |
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41 | /// and \c Arc (or \c Edge) types should \e not derive from the same |
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42 | /// base class. For \c Node you should instantiate it with character |
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43 | /// \c 'n', for \c Arc with \c 'a' and for \c Edge with \c 'e'. |
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44 | #ifndef DOXYGEN |
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45 | template <char sel = '0'> |
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46 | #endif |
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47 | class GraphItem { |
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48 | public: |
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49 | /// \brief Default constructor. |
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50 | /// |
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51 | /// Default constructor. |
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52 | /// \warning The default constructor is not required to set |
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53 | /// the item to some well-defined value. So you should consider it |
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54 | /// as uninitialized. |
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55 | GraphItem() {} |
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56 | |
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57 | /// \brief Copy constructor. |
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58 | /// |
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59 | /// Copy constructor. |
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60 | GraphItem(const GraphItem &) {} |
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61 | |
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62 | /// \brief Constructor for conversion from \c INVALID. |
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63 | /// |
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64 | /// Constructor for conversion from \c INVALID. |
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65 | /// It initializes the item to be invalid. |
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66 | /// \sa Invalid for more details. |
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67 | GraphItem(Invalid) {} |
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68 | |
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69 | /// \brief Assignment operator. |
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70 | /// |
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71 | /// Assignment operator for the item. |
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72 | GraphItem& operator=(const GraphItem&) { return *this; } |
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73 | |
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74 | /// \brief Equality operator. |
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75 | /// |
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76 | /// Equality operator. |
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77 | bool operator==(const GraphItem&) const { return false; } |
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78 | |
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79 | /// \brief Inequality operator. |
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80 | /// |
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81 | /// Inequality operator. |
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82 | bool operator!=(const GraphItem&) const { return false; } |
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83 | |
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84 | /// \brief Ordering operator. |
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85 | /// |
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86 | /// This operator defines an ordering of the items. |
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87 | /// It makes possible to use graph item types as key types in |
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88 | /// associative containers (e.g. \c std::map). |
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89 | /// |
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90 | /// \note This operator only have to define some strict ordering of |
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91 | /// the items; this order has nothing to do with the iteration |
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92 | /// ordering of the items. |
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93 | bool operator<(const GraphItem&) const { return false; } |
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94 | |
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95 | template<typename _GraphItem> |
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96 | struct Constraints { |
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97 | void constraints() { |
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98 | _GraphItem i1; |
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99 | _GraphItem i2 = i1; |
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100 | _GraphItem i3 = INVALID; |
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101 | |
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102 | i1 = i2 = i3; |
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103 | |
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104 | bool b; |
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105 | b = (ia == ib) && (ia != ib); |
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106 | b = (ia == INVALID) && (ib != INVALID); |
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107 | b = (ia < ib); |
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108 | } |
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109 | |
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110 | const _GraphItem &ia; |
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111 | const _GraphItem &ib; |
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112 | }; |
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113 | }; |
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114 | |
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115 | /// \brief Base skeleton class for directed graphs. |
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116 | /// |
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117 | /// This class describes the base interface of directed graph types. |
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118 | /// All digraph %concepts have to conform to this class. |
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119 | /// It just provides types for nodes and arcs and functions |
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120 | /// to get the source and the target nodes of arcs. |
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121 | class BaseDigraphComponent { |
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122 | public: |
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123 | |
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124 | typedef BaseDigraphComponent Digraph; |
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125 | |
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126 | /// \brief Node class of the digraph. |
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127 | /// |
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128 | /// This class represents the nodes of the digraph. |
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129 | typedef GraphItem<'n'> Node; |
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130 | |
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131 | /// \brief Arc class of the digraph. |
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132 | /// |
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133 | /// This class represents the arcs of the digraph. |
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134 | typedef GraphItem<'a'> Arc; |
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135 | |
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136 | /// \brief Return the source node of an arc. |
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137 | /// |
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138 | /// This function returns the source node of an arc. |
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139 | Node source(const Arc&) const { return INVALID; } |
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140 | |
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141 | /// \brief Return the target node of an arc. |
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142 | /// |
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143 | /// This function returns the target node of an arc. |
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144 | Node target(const Arc&) const { return INVALID; } |
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145 | |
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146 | /// \brief Return the opposite node on the given arc. |
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147 | /// |
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148 | /// This function returns the opposite node on the given arc. |
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149 | Node oppositeNode(const Node&, const Arc&) const { |
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150 | return INVALID; |
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151 | } |
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152 | |
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153 | template <typename _Digraph> |
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154 | struct Constraints { |
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155 | typedef typename _Digraph::Node Node; |
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156 | typedef typename _Digraph::Arc Arc; |
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157 | |
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158 | void constraints() { |
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159 | checkConcept<GraphItem<'n'>, Node>(); |
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160 | checkConcept<GraphItem<'a'>, Arc>(); |
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161 | { |
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162 | Node n; |
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163 | Arc e(INVALID); |
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164 | n = digraph.source(e); |
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165 | n = digraph.target(e); |
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166 | n = digraph.oppositeNode(n, e); |
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167 | } |
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168 | } |
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169 | |
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170 | const _Digraph& digraph; |
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171 | }; |
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172 | }; |
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173 | |
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174 | /// \brief Base skeleton class for undirected graphs. |
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175 | /// |
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176 | /// This class describes the base interface of undirected graph types. |
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177 | /// All graph %concepts have to conform to this class. |
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178 | /// It extends the interface of \ref BaseDigraphComponent with an |
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179 | /// \c Edge type and functions to get the end nodes of edges, |
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180 | /// to convert from arcs to edges and to get both direction of edges. |
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181 | class BaseGraphComponent : public BaseDigraphComponent { |
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182 | public: |
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183 | |
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184 | typedef BaseGraphComponent Graph; |
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185 | |
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186 | typedef BaseDigraphComponent::Node Node; |
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187 | typedef BaseDigraphComponent::Arc Arc; |
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188 | |
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189 | /// \brief Undirected edge class of the graph. |
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190 | /// |
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191 | /// This class represents the undirected edges of the graph. |
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192 | /// Undirected graphs can be used as directed graphs, each edge is |
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193 | /// represented by two opposite directed arcs. |
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194 | class Edge : public GraphItem<'e'> { |
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195 | typedef GraphItem<'e'> Parent; |
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196 | |
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197 | public: |
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198 | /// \brief Default constructor. |
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199 | /// |
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200 | /// Default constructor. |
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201 | /// \warning The default constructor is not required to set |
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202 | /// the item to some well-defined value. So you should consider it |
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203 | /// as uninitialized. |
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204 | Edge() {} |
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205 | |
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206 | /// \brief Copy constructor. |
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207 | /// |
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208 | /// Copy constructor. |
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209 | Edge(const Edge &) : Parent() {} |
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210 | |
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211 | /// \brief Constructor for conversion from \c INVALID. |
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212 | /// |
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213 | /// Constructor for conversion from \c INVALID. |
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214 | /// It initializes the item to be invalid. |
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215 | /// \sa Invalid for more details. |
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216 | Edge(Invalid) {} |
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217 | |
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218 | /// \brief Constructor for conversion from an arc. |
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219 | /// |
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220 | /// Constructor for conversion from an arc. |
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221 | /// Besides the core graph item functionality each arc should |
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222 | /// be convertible to the represented edge. |
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223 | Edge(const Arc&) {} |
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224 | |
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225 | /// \brief Assign an arc to an edge. |
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226 | /// |
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227 | /// This function assigns an arc to an edge. |
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228 | /// Besides the core graph item functionality each arc should |
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229 | /// be convertible to the represented edge. |
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230 | Edge& operator=(const Arc&) { return *this; } |
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231 | }; |
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232 | |
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233 | /// \brief Return one end node of an edge. |
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234 | /// |
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235 | /// This function returns one end node of an edge. |
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236 | Node u(const Edge&) const { return INVALID; } |
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237 | |
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238 | /// \brief Return the other end node of an edge. |
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239 | /// |
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240 | /// This function returns the other end node of an edge. |
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241 | Node v(const Edge&) const { return INVALID; } |
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242 | |
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243 | /// \brief Return a directed arc related to an edge. |
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244 | /// |
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245 | /// This function returns a directed arc from its direction and the |
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246 | /// represented edge. |
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247 | Arc direct(const Edge&, bool) const { return INVALID; } |
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248 | |
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249 | /// \brief Return a directed arc related to an edge. |
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250 | /// |
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251 | /// This function returns a directed arc from its source node and the |
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252 | /// represented edge. |
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253 | Arc direct(const Edge&, const Node&) const { return INVALID; } |
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254 | |
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255 | /// \brief Return the direction of the arc. |
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256 | /// |
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257 | /// Returns the direction of the arc. Each arc represents an |
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258 | /// edge with a direction. It gives back the |
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259 | /// direction. |
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260 | bool direction(const Arc&) const { return true; } |
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261 | |
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262 | /// \brief Return the opposite arc. |
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263 | /// |
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264 | /// This function returns the opposite arc, i.e. the arc representing |
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265 | /// the same edge and has opposite direction. |
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266 | Arc oppositeArc(const Arc&) const { return INVALID; } |
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267 | |
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268 | template <typename _Graph> |
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269 | struct Constraints { |
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270 | typedef typename _Graph::Node Node; |
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271 | typedef typename _Graph::Arc Arc; |
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272 | typedef typename _Graph::Edge Edge; |
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273 | |
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274 | void constraints() { |
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275 | checkConcept<BaseDigraphComponent, _Graph>(); |
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276 | checkConcept<GraphItem<'e'>, Edge>(); |
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277 | { |
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278 | Node n; |
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279 | Edge ue(INVALID); |
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280 | Arc e; |
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281 | n = graph.u(ue); |
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282 | n = graph.v(ue); |
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283 | e = graph.direct(ue, true); |
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284 | e = graph.direct(ue, false); |
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285 | e = graph.direct(ue, n); |
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286 | e = graph.oppositeArc(e); |
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287 | ue = e; |
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288 | bool d = graph.direction(e); |
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289 | ignore_unused_variable_warning(d); |
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290 | } |
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291 | } |
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292 | |
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293 | const _Graph& graph; |
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294 | }; |
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295 | |
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296 | }; |
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297 | |
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298 | /// \brief Skeleton class for \e idable directed graphs. |
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299 | /// |
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300 | /// This class describes the interface of \e idable directed graphs. |
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301 | /// It extends \ref BaseDigraphComponent with the core ID functions. |
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302 | /// The ids of the items must be unique and immutable. |
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303 | /// This concept is part of the Digraph concept. |
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304 | template <typename BAS = BaseDigraphComponent> |
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305 | class IDableDigraphComponent : public BAS { |
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306 | public: |
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307 | |
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308 | typedef BAS Base; |
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309 | typedef typename Base::Node Node; |
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310 | typedef typename Base::Arc Arc; |
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311 | |
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312 | /// \brief Return a unique integer id for the given node. |
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313 | /// |
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314 | /// This function returns a unique integer id for the given node. |
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315 | int id(const Node&) const { return -1; } |
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316 | |
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317 | /// \brief Return the node by its unique id. |
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318 | /// |
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319 | /// This function returns the node by its unique id. |
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320 | /// If the digraph does not contain a node with the given id, |
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321 | /// then the result of the function is undefined. |
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322 | Node nodeFromId(int) const { return INVALID; } |
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323 | |
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324 | /// \brief Return a unique integer id for the given arc. |
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325 | /// |
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326 | /// This function returns a unique integer id for the given arc. |
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327 | int id(const Arc&) const { return -1; } |
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328 | |
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329 | /// \brief Return the arc by its unique id. |
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330 | /// |
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331 | /// This function returns the arc by its unique id. |
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332 | /// If the digraph does not contain an arc with the given id, |
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333 | /// then the result of the function is undefined. |
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334 | Arc arcFromId(int) const { return INVALID; } |
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335 | |
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336 | /// \brief Return an integer greater or equal to the maximum |
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337 | /// node id. |
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338 | /// |
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339 | /// This function returns an integer greater or equal to the |
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340 | /// maximum node id. |
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341 | int maxNodeId() const { return -1; } |
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342 | |
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343 | /// \brief Return an integer greater or equal to the maximum |
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344 | /// arc id. |
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345 | /// |
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346 | /// This function returns an integer greater or equal to the |
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347 | /// maximum arc id. |
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348 | int maxArcId() const { return -1; } |
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349 | |
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350 | template <typename _Digraph> |
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351 | struct Constraints { |
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352 | |
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353 | void constraints() { |
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354 | checkConcept<Base, _Digraph >(); |
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355 | typename _Digraph::Node node; |
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356 | int nid = digraph.id(node); |
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357 | nid = digraph.id(node); |
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358 | node = digraph.nodeFromId(nid); |
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359 | typename _Digraph::Arc arc; |
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360 | int eid = digraph.id(arc); |
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361 | eid = digraph.id(arc); |
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362 | arc = digraph.arcFromId(eid); |
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363 | |
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364 | nid = digraph.maxNodeId(); |
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365 | ignore_unused_variable_warning(nid); |
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366 | eid = digraph.maxArcId(); |
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367 | ignore_unused_variable_warning(eid); |
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368 | } |
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369 | |
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370 | const _Digraph& digraph; |
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371 | }; |
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372 | }; |
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373 | |
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374 | /// \brief Skeleton class for \e idable undirected graphs. |
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375 | /// |
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376 | /// This class describes the interface of \e idable undirected |
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377 | /// graphs. It extends \ref IDableDigraphComponent with the core ID |
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378 | /// functions of undirected graphs. |
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379 | /// The ids of the items must be unique and immutable. |
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380 | /// This concept is part of the Graph concept. |
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381 | template <typename BAS = BaseGraphComponent> |
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382 | class IDableGraphComponent : public IDableDigraphComponent<BAS> { |
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383 | public: |
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384 | |
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385 | typedef BAS Base; |
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386 | typedef typename Base::Edge Edge; |
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387 | |
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388 | using IDableDigraphComponent<Base>::id; |
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389 | |
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390 | /// \brief Return a unique integer id for the given edge. |
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391 | /// |
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392 | /// This function returns a unique integer id for the given edge. |
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393 | int id(const Edge&) const { return -1; } |
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394 | |
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395 | /// \brief Return the edge by its unique id. |
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396 | /// |
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397 | /// This function returns the edge by its unique id. |
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398 | /// If the graph does not contain an edge with the given id, |
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399 | /// then the result of the function is undefined. |
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400 | Edge edgeFromId(int) const { return INVALID; } |
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401 | |
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402 | /// \brief Return an integer greater or equal to the maximum |
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403 | /// edge id. |
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404 | /// |
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405 | /// This function returns an integer greater or equal to the |
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406 | /// maximum edge id. |
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407 | int maxEdgeId() const { return -1; } |
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408 | |
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409 | template <typename _Graph> |
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410 | struct Constraints { |
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411 | |
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412 | void constraints() { |
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413 | checkConcept<IDableDigraphComponent<Base>, _Graph >(); |
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414 | typename _Graph::Edge edge; |
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415 | int ueid = graph.id(edge); |
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416 | ueid = graph.id(edge); |
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417 | edge = graph.edgeFromId(ueid); |
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418 | ueid = graph.maxEdgeId(); |
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419 | ignore_unused_variable_warning(ueid); |
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420 | } |
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421 | |
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422 | const _Graph& graph; |
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423 | }; |
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424 | }; |
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425 | |
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426 | /// \brief Concept class for \c NodeIt, \c ArcIt and \c EdgeIt types. |
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427 | /// |
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428 | /// This class describes the concept of \c NodeIt, \c ArcIt and |
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429 | /// \c EdgeIt subtypes of digraph and graph types. |
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430 | template <typename GR, typename Item> |
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431 | class GraphItemIt : public Item { |
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432 | public: |
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433 | /// \brief Default constructor. |
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434 | /// |
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435 | /// Default constructor. |
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436 | /// \warning The default constructor is not required to set |
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437 | /// the iterator to some well-defined value. So you should consider it |
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438 | /// as uninitialized. |
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439 | GraphItemIt() {} |
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440 | |
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441 | /// \brief Copy constructor. |
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442 | /// |
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443 | /// Copy constructor. |
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444 | GraphItemIt(const GraphItemIt& it) : Item(it) {} |
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445 | |
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446 | /// \brief Constructor that sets the iterator to the first item. |
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447 | /// |
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448 | /// Constructor that sets the iterator to the first item. |
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449 | explicit GraphItemIt(const GR&) {} |
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450 | |
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451 | /// \brief Constructor for conversion from \c INVALID. |
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452 | /// |
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453 | /// Constructor for conversion from \c INVALID. |
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454 | /// It initializes the iterator to be invalid. |
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455 | /// \sa Invalid for more details. |
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456 | GraphItemIt(Invalid) {} |
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457 | |
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458 | /// \brief Assignment operator. |
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459 | /// |
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460 | /// Assignment operator for the iterator. |
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461 | GraphItemIt& operator=(const GraphItemIt&) { return *this; } |
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462 | |
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463 | /// \brief Increment the iterator. |
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464 | /// |
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465 | /// This operator increments the iterator, i.e. assigns it to the |
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466 | /// next item. |
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467 | GraphItemIt& operator++() { return *this; } |
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468 | |
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469 | /// \brief Equality operator |
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470 | /// |
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471 | /// Equality operator. |
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472 | /// Two iterators are equal if and only if they point to the |
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473 | /// same object or both are invalid. |
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474 | bool operator==(const GraphItemIt&) const { return true;} |
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475 | |
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476 | /// \brief Inequality operator |
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477 | /// |
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478 | /// Inequality operator. |
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479 | /// Two iterators are equal if and only if they point to the |
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480 | /// same object or both are invalid. |
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481 | bool operator!=(const GraphItemIt&) const { return true;} |
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482 | |
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483 | template<typename _GraphItemIt> |
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484 | struct Constraints { |
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485 | void constraints() { |
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486 | checkConcept<GraphItem<>, _GraphItemIt>(); |
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487 | _GraphItemIt it1(g); |
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488 | _GraphItemIt it2; |
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489 | _GraphItemIt it3 = it1; |
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490 | _GraphItemIt it4 = INVALID; |
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491 | |
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492 | it2 = ++it1; |
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493 | ++it2 = it1; |
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494 | ++(++it1); |
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495 | |
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496 | Item bi = it1; |
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497 | bi = it2; |
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498 | } |
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499 | const GR& g; |
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500 | }; |
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501 | }; |
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502 | |
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503 | /// \brief Concept class for \c InArcIt, \c OutArcIt and |
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504 | /// \c IncEdgeIt types. |
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505 | /// |
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506 | /// This class describes the concept of \c InArcIt, \c OutArcIt |
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507 | /// and \c IncEdgeIt subtypes of digraph and graph types. |
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508 | /// |
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509 | /// \note Since these iterator classes do not inherit from the same |
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510 | /// base class, there is an additional template parameter (selector) |
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511 | /// \c sel. For \c InArcIt you should instantiate it with character |
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512 | /// \c 'i', for \c OutArcIt with \c 'o' and for \c IncEdgeIt with \c 'e'. |
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513 | template <typename GR, |
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514 | typename Item = typename GR::Arc, |
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515 | typename Base = typename GR::Node, |
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516 | char sel = '0'> |
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517 | class GraphIncIt : public Item { |
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518 | public: |
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519 | /// \brief Default constructor. |
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520 | /// |
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521 | /// Default constructor. |
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522 | /// \warning The default constructor is not required to set |
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523 | /// the iterator to some well-defined value. So you should consider it |
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524 | /// as uninitialized. |
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525 | GraphIncIt() {} |
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526 | |
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527 | /// \brief Copy constructor. |
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528 | /// |
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529 | /// Copy constructor. |
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530 | GraphIncIt(const GraphIncIt& it) : Item(it) {} |
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531 | |
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532 | /// \brief Constructor that sets the iterator to the first |
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533 | /// incoming or outgoing arc. |
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534 | /// |
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535 | /// Constructor that sets the iterator to the first arc |
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536 | /// incoming to or outgoing from the given node. |
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537 | explicit GraphIncIt(const GR&, const Base&) {} |
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538 | |
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539 | /// \brief Constructor for conversion from \c INVALID. |
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540 | /// |
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541 | /// Constructor for conversion from \c INVALID. |
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542 | /// It initializes the iterator to be invalid. |
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543 | /// \sa Invalid for more details. |
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544 | GraphIncIt(Invalid) {} |
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545 | |
---|
546 | /// \brief Assignment operator. |
---|
547 | /// |
---|
548 | /// Assignment operator for the iterator. |
---|
549 | GraphIncIt& operator=(const GraphIncIt&) { return *this; } |
---|
550 | |
---|
551 | /// \brief Increment the iterator. |
---|
552 | /// |
---|
553 | /// This operator increments the iterator, i.e. assigns it to the |
---|
554 | /// next arc incoming to or outgoing from the given node. |
---|
555 | GraphIncIt& operator++() { return *this; } |
---|
556 | |
---|
557 | /// \brief Equality operator |
---|
558 | /// |
---|
559 | /// Equality operator. |
---|
560 | /// Two iterators are equal if and only if they point to the |
---|
561 | /// same object or both are invalid. |
---|
562 | bool operator==(const GraphIncIt&) const { return true;} |
---|
563 | |
---|
564 | /// \brief Inequality operator |
---|
565 | /// |
---|
566 | /// Inequality operator. |
---|
567 | /// Two iterators are equal if and only if they point to the |
---|
568 | /// same object or both are invalid. |
---|
569 | bool operator!=(const GraphIncIt&) const { return true;} |
---|
570 | |
---|
571 | template <typename _GraphIncIt> |
---|
572 | struct Constraints { |
---|
573 | void constraints() { |
---|
574 | checkConcept<GraphItem<sel>, _GraphIncIt>(); |
---|
575 | _GraphIncIt it1(graph, node); |
---|
576 | _GraphIncIt it2; |
---|
577 | _GraphIncIt it3 = it1; |
---|
578 | _GraphIncIt it4 = INVALID; |
---|
579 | |
---|
580 | it2 = ++it1; |
---|
581 | ++it2 = it1; |
---|
582 | ++(++it1); |
---|
583 | Item e = it1; |
---|
584 | e = it2; |
---|
585 | } |
---|
586 | const Base& node; |
---|
587 | const GR& graph; |
---|
588 | }; |
---|
589 | }; |
---|
590 | |
---|
591 | /// \brief Skeleton class for iterable directed graphs. |
---|
592 | /// |
---|
593 | /// This class describes the interface of iterable directed |
---|
594 | /// graphs. It extends \ref BaseDigraphComponent with the core |
---|
595 | /// iterable interface. |
---|
596 | /// This concept is part of the Digraph concept. |
---|
597 | template <typename BAS = BaseDigraphComponent> |
---|
598 | class IterableDigraphComponent : public BAS { |
---|
599 | |
---|
600 | public: |
---|
601 | |
---|
602 | typedef BAS Base; |
---|
603 | typedef typename Base::Node Node; |
---|
604 | typedef typename Base::Arc Arc; |
---|
605 | |
---|
606 | typedef IterableDigraphComponent Digraph; |
---|
607 | |
---|
608 | /// \name Base Iteration |
---|
609 | /// |
---|
610 | /// This interface provides functions for iteration on digraph items. |
---|
611 | /// |
---|
612 | /// @{ |
---|
613 | |
---|
614 | /// \brief Return the first node. |
---|
615 | /// |
---|
616 | /// This function gives back the first node in the iteration order. |
---|
617 | void first(Node&) const {} |
---|
618 | |
---|
619 | /// \brief Return the next node. |
---|
620 | /// |
---|
621 | /// This function gives back the next node in the iteration order. |
---|
622 | void next(Node&) const {} |
---|
623 | |
---|
624 | /// \brief Return the first arc. |
---|
625 | /// |
---|
626 | /// This function gives back the first arc in the iteration order. |
---|
627 | void first(Arc&) const {} |
---|
628 | |
---|
629 | /// \brief Return the next arc. |
---|
630 | /// |
---|
631 | /// This function gives back the next arc in the iteration order. |
---|
632 | void next(Arc&) const {} |
---|
633 | |
---|
634 | /// \brief Return the first arc incomming to the given node. |
---|
635 | /// |
---|
636 | /// This function gives back the first arc incomming to the |
---|
637 | /// given node. |
---|
638 | void firstIn(Arc&, const Node&) const {} |
---|
639 | |
---|
640 | /// \brief Return the next arc incomming to the given node. |
---|
641 | /// |
---|
642 | /// This function gives back the next arc incomming to the |
---|
643 | /// given node. |
---|
644 | void nextIn(Arc&) const {} |
---|
645 | |
---|
646 | /// \brief Return the first arc outgoing form the given node. |
---|
647 | /// |
---|
648 | /// This function gives back the first arc outgoing form the |
---|
649 | /// given node. |
---|
650 | void firstOut(Arc&, const Node&) const {} |
---|
651 | |
---|
652 | /// \brief Return the next arc outgoing form the given node. |
---|
653 | /// |
---|
654 | /// This function gives back the next arc outgoing form the |
---|
655 | /// given node. |
---|
656 | void nextOut(Arc&) const {} |
---|
657 | |
---|
658 | /// @} |
---|
659 | |
---|
660 | /// \name Class Based Iteration |
---|
661 | /// |
---|
662 | /// This interface provides iterator classes for digraph items. |
---|
663 | /// |
---|
664 | /// @{ |
---|
665 | |
---|
666 | /// \brief This iterator goes through each node. |
---|
667 | /// |
---|
668 | /// This iterator goes through each node. |
---|
669 | /// |
---|
670 | typedef GraphItemIt<Digraph, Node> NodeIt; |
---|
671 | |
---|
672 | /// \brief This iterator goes through each arc. |
---|
673 | /// |
---|
674 | /// This iterator goes through each arc. |
---|
675 | /// |
---|
676 | typedef GraphItemIt<Digraph, Arc> ArcIt; |
---|
677 | |
---|
678 | /// \brief This iterator goes trough the incoming arcs of a node. |
---|
679 | /// |
---|
680 | /// This iterator goes trough the \e incoming arcs of a certain node |
---|
681 | /// of a digraph. |
---|
682 | typedef GraphIncIt<Digraph, Arc, Node, 'i'> InArcIt; |
---|
683 | |
---|
684 | /// \brief This iterator goes trough the outgoing arcs of a node. |
---|
685 | /// |
---|
686 | /// This iterator goes trough the \e outgoing arcs of a certain node |
---|
687 | /// of a digraph. |
---|
688 | typedef GraphIncIt<Digraph, Arc, Node, 'o'> OutArcIt; |
---|
689 | |
---|
690 | /// \brief The base node of the iterator. |
---|
691 | /// |
---|
692 | /// This function gives back the base node of the iterator. |
---|
693 | /// It is always the target node of the pointed arc. |
---|
694 | Node baseNode(const InArcIt&) const { return INVALID; } |
---|
695 | |
---|
696 | /// \brief The running node of the iterator. |
---|
697 | /// |
---|
698 | /// This function gives back the running node of the iterator. |
---|
699 | /// It is always the source node of the pointed arc. |
---|
700 | Node runningNode(const InArcIt&) const { return INVALID; } |
---|
701 | |
---|
702 | /// \brief The base node of the iterator. |
---|
703 | /// |
---|
704 | /// This function gives back the base node of the iterator. |
---|
705 | /// It is always the source node of the pointed arc. |
---|
706 | Node baseNode(const OutArcIt&) const { return INVALID; } |
---|
707 | |
---|
708 | /// \brief The running node of the iterator. |
---|
709 | /// |
---|
710 | /// This function gives back the running node of the iterator. |
---|
711 | /// It is always the target node of the pointed arc. |
---|
712 | Node runningNode(const OutArcIt&) const { return INVALID; } |
---|
713 | |
---|
714 | /// @} |
---|
715 | |
---|
716 | template <typename _Digraph> |
---|
717 | struct Constraints { |
---|
718 | void constraints() { |
---|
719 | checkConcept<Base, _Digraph>(); |
---|
720 | |
---|
721 | { |
---|
722 | typename _Digraph::Node node(INVALID); |
---|
723 | typename _Digraph::Arc arc(INVALID); |
---|
724 | { |
---|
725 | digraph.first(node); |
---|
726 | digraph.next(node); |
---|
727 | } |
---|
728 | { |
---|
729 | digraph.first(arc); |
---|
730 | digraph.next(arc); |
---|
731 | } |
---|
732 | { |
---|
733 | digraph.firstIn(arc, node); |
---|
734 | digraph.nextIn(arc); |
---|
735 | } |
---|
736 | { |
---|
737 | digraph.firstOut(arc, node); |
---|
738 | digraph.nextOut(arc); |
---|
739 | } |
---|
740 | } |
---|
741 | |
---|
742 | { |
---|
743 | checkConcept<GraphItemIt<_Digraph, typename _Digraph::Arc>, |
---|
744 | typename _Digraph::ArcIt >(); |
---|
745 | checkConcept<GraphItemIt<_Digraph, typename _Digraph::Node>, |
---|
746 | typename _Digraph::NodeIt >(); |
---|
747 | checkConcept<GraphIncIt<_Digraph, typename _Digraph::Arc, |
---|
748 | typename _Digraph::Node, 'i'>, typename _Digraph::InArcIt>(); |
---|
749 | checkConcept<GraphIncIt<_Digraph, typename _Digraph::Arc, |
---|
750 | typename _Digraph::Node, 'o'>, typename _Digraph::OutArcIt>(); |
---|
751 | |
---|
752 | typename _Digraph::Node n; |
---|
753 | const typename _Digraph::InArcIt iait(INVALID); |
---|
754 | const typename _Digraph::OutArcIt oait(INVALID); |
---|
755 | n = digraph.baseNode(iait); |
---|
756 | n = digraph.runningNode(iait); |
---|
757 | n = digraph.baseNode(oait); |
---|
758 | n = digraph.runningNode(oait); |
---|
759 | ignore_unused_variable_warning(n); |
---|
760 | } |
---|
761 | } |
---|
762 | |
---|
763 | const _Digraph& digraph; |
---|
764 | }; |
---|
765 | }; |
---|
766 | |
---|
767 | /// \brief Skeleton class for iterable undirected graphs. |
---|
768 | /// |
---|
769 | /// This class describes the interface of iterable undirected |
---|
770 | /// graphs. It extends \ref IterableDigraphComponent with the core |
---|
771 | /// iterable interface of undirected graphs. |
---|
772 | /// This concept is part of the Graph concept. |
---|
773 | template <typename BAS = BaseGraphComponent> |
---|
774 | class IterableGraphComponent : public IterableDigraphComponent<BAS> { |
---|
775 | public: |
---|
776 | |
---|
777 | typedef BAS Base; |
---|
778 | typedef typename Base::Node Node; |
---|
779 | typedef typename Base::Arc Arc; |
---|
780 | typedef typename Base::Edge Edge; |
---|
781 | |
---|
782 | |
---|
783 | typedef IterableGraphComponent Graph; |
---|
784 | |
---|
785 | /// \name Base Iteration |
---|
786 | /// |
---|
787 | /// This interface provides functions for iteration on edges. |
---|
788 | /// |
---|
789 | /// @{ |
---|
790 | |
---|
791 | using IterableDigraphComponent<Base>::first; |
---|
792 | using IterableDigraphComponent<Base>::next; |
---|
793 | |
---|
794 | /// \brief Return the first edge. |
---|
795 | /// |
---|
796 | /// This function gives back the first edge in the iteration order. |
---|
797 | void first(Edge&) const {} |
---|
798 | |
---|
799 | /// \brief Return the next edge. |
---|
800 | /// |
---|
801 | /// This function gives back the next edge in the iteration order. |
---|
802 | void next(Edge&) const {} |
---|
803 | |
---|
804 | /// \brief Return the first edge incident to the given node. |
---|
805 | /// |
---|
806 | /// This function gives back the first edge incident to the given |
---|
807 | /// node. The bool parameter gives back the direction for which the |
---|
808 | /// source node of the directed arc representing the edge is the |
---|
809 | /// given node. |
---|
810 | void firstInc(Edge&, bool&, const Node&) const {} |
---|
811 | |
---|
812 | /// \brief Gives back the next of the edges from the |
---|
813 | /// given node. |
---|
814 | /// |
---|
815 | /// This function gives back the next edge incident to the given |
---|
816 | /// node. The bool parameter should be used as \c firstInc() use it. |
---|
817 | void nextInc(Edge&, bool&) const {} |
---|
818 | |
---|
819 | using IterableDigraphComponent<Base>::baseNode; |
---|
820 | using IterableDigraphComponent<Base>::runningNode; |
---|
821 | |
---|
822 | /// @} |
---|
823 | |
---|
824 | /// \name Class Based Iteration |
---|
825 | /// |
---|
826 | /// This interface provides iterator classes for edges. |
---|
827 | /// |
---|
828 | /// @{ |
---|
829 | |
---|
830 | /// \brief This iterator goes through each edge. |
---|
831 | /// |
---|
832 | /// This iterator goes through each edge. |
---|
833 | typedef GraphItemIt<Graph, Edge> EdgeIt; |
---|
834 | |
---|
835 | /// \brief This iterator goes trough the incident edges of a |
---|
836 | /// node. |
---|
837 | /// |
---|
838 | /// This iterator goes trough the incident edges of a certain |
---|
839 | /// node of a graph. |
---|
840 | typedef GraphIncIt<Graph, Edge, Node, 'e'> IncEdgeIt; |
---|
841 | |
---|
842 | /// \brief The base node of the iterator. |
---|
843 | /// |
---|
844 | /// This function gives back the base node of the iterator. |
---|
845 | Node baseNode(const IncEdgeIt&) const { return INVALID; } |
---|
846 | |
---|
847 | /// \brief The running node of the iterator. |
---|
848 | /// |
---|
849 | /// This function gives back the running node of the iterator. |
---|
850 | Node runningNode(const IncEdgeIt&) const { return INVALID; } |
---|
851 | |
---|
852 | /// @} |
---|
853 | |
---|
854 | template <typename _Graph> |
---|
855 | struct Constraints { |
---|
856 | void constraints() { |
---|
857 | checkConcept<IterableDigraphComponent<Base>, _Graph>(); |
---|
858 | |
---|
859 | { |
---|
860 | typename _Graph::Node node(INVALID); |
---|
861 | typename _Graph::Edge edge(INVALID); |
---|
862 | bool dir; |
---|
863 | { |
---|
864 | graph.first(edge); |
---|
865 | graph.next(edge); |
---|
866 | } |
---|
867 | { |
---|
868 | graph.firstInc(edge, dir, node); |
---|
869 | graph.nextInc(edge, dir); |
---|
870 | } |
---|
871 | |
---|
872 | } |
---|
873 | |
---|
874 | { |
---|
875 | checkConcept<GraphItemIt<_Graph, typename _Graph::Edge>, |
---|
876 | typename _Graph::EdgeIt >(); |
---|
877 | checkConcept<GraphIncIt<_Graph, typename _Graph::Edge, |
---|
878 | typename _Graph::Node, 'e'>, typename _Graph::IncEdgeIt>(); |
---|
879 | |
---|
880 | typename _Graph::Node n; |
---|
881 | const typename _Graph::IncEdgeIt ieit(INVALID); |
---|
882 | n = graph.baseNode(ieit); |
---|
883 | n = graph.runningNode(ieit); |
---|
884 | } |
---|
885 | } |
---|
886 | |
---|
887 | const _Graph& graph; |
---|
888 | }; |
---|
889 | }; |
---|
890 | |
---|
891 | /// \brief Skeleton class for alterable directed graphs. |
---|
892 | /// |
---|
893 | /// This class describes the interface of alterable directed |
---|
894 | /// graphs. It extends \ref BaseDigraphComponent with the alteration |
---|
895 | /// notifier interface. It implements |
---|
896 | /// an observer-notifier pattern for each digraph item. More |
---|
897 | /// obsevers can be registered into the notifier and whenever an |
---|
898 | /// alteration occured in the digraph all the observers will be |
---|
899 | /// notified about it. |
---|
900 | template <typename BAS = BaseDigraphComponent> |
---|
901 | class AlterableDigraphComponent : public BAS { |
---|
902 | public: |
---|
903 | |
---|
904 | typedef BAS Base; |
---|
905 | typedef typename Base::Node Node; |
---|
906 | typedef typename Base::Arc Arc; |
---|
907 | |
---|
908 | |
---|
909 | /// Node alteration notifier class. |
---|
910 | typedef AlterationNotifier<AlterableDigraphComponent, Node> |
---|
911 | NodeNotifier; |
---|
912 | /// Arc alteration notifier class. |
---|
913 | typedef AlterationNotifier<AlterableDigraphComponent, Arc> |
---|
914 | ArcNotifier; |
---|
915 | |
---|
916 | /// \brief Return the node alteration notifier. |
---|
917 | /// |
---|
918 | /// This function gives back the node alteration notifier. |
---|
919 | NodeNotifier& notifier(Node) const { |
---|
920 | return NodeNotifier(); |
---|
921 | } |
---|
922 | |
---|
923 | /// \brief Return the arc alteration notifier. |
---|
924 | /// |
---|
925 | /// This function gives back the arc alteration notifier. |
---|
926 | ArcNotifier& notifier(Arc) const { |
---|
927 | return ArcNotifier(); |
---|
928 | } |
---|
929 | |
---|
930 | template <typename _Digraph> |
---|
931 | struct Constraints { |
---|
932 | void constraints() { |
---|
933 | checkConcept<Base, _Digraph>(); |
---|
934 | typename _Digraph::NodeNotifier& nn |
---|
935 | = digraph.notifier(typename _Digraph::Node()); |
---|
936 | |
---|
937 | typename _Digraph::ArcNotifier& en |
---|
938 | = digraph.notifier(typename _Digraph::Arc()); |
---|
939 | |
---|
940 | ignore_unused_variable_warning(nn); |
---|
941 | ignore_unused_variable_warning(en); |
---|
942 | } |
---|
943 | |
---|
944 | const _Digraph& digraph; |
---|
945 | }; |
---|
946 | }; |
---|
947 | |
---|
948 | /// \brief Skeleton class for alterable undirected graphs. |
---|
949 | /// |
---|
950 | /// This class describes the interface of alterable undirected |
---|
951 | /// graphs. It extends \ref AlterableDigraphComponent with the alteration |
---|
952 | /// notifier interface of undirected graphs. It implements |
---|
953 | /// an observer-notifier pattern for the edges. More |
---|
954 | /// obsevers can be registered into the notifier and whenever an |
---|
955 | /// alteration occured in the graph all the observers will be |
---|
956 | /// notified about it. |
---|
957 | template <typename BAS = BaseGraphComponent> |
---|
958 | class AlterableGraphComponent : public AlterableDigraphComponent<BAS> { |
---|
959 | public: |
---|
960 | |
---|
961 | typedef BAS Base; |
---|
962 | typedef typename Base::Edge Edge; |
---|
963 | |
---|
964 | |
---|
965 | /// Edge alteration notifier class. |
---|
966 | typedef AlterationNotifier<AlterableGraphComponent, Edge> |
---|
967 | EdgeNotifier; |
---|
968 | |
---|
969 | /// \brief Return the edge alteration notifier. |
---|
970 | /// |
---|
971 | /// This function gives back the edge alteration notifier. |
---|
972 | EdgeNotifier& notifier(Edge) const { |
---|
973 | return EdgeNotifier(); |
---|
974 | } |
---|
975 | |
---|
976 | template <typename _Graph> |
---|
977 | struct Constraints { |
---|
978 | void constraints() { |
---|
979 | checkConcept<AlterableDigraphComponent<Base>, _Graph>(); |
---|
980 | typename _Graph::EdgeNotifier& uen |
---|
981 | = graph.notifier(typename _Graph::Edge()); |
---|
982 | ignore_unused_variable_warning(uen); |
---|
983 | } |
---|
984 | |
---|
985 | const _Graph& graph; |
---|
986 | }; |
---|
987 | }; |
---|
988 | |
---|
989 | /// \brief Concept class for standard graph maps. |
---|
990 | /// |
---|
991 | /// This class describes the concept of standard graph maps, i.e. |
---|
992 | /// the \c NodeMap, \c ArcMap and \c EdgeMap subtypes of digraph and |
---|
993 | /// graph types, which can be used for associating data to graph items. |
---|
994 | /// The standard graph maps must conform to the ReferenceMap concept. |
---|
995 | template <typename GR, typename K, typename V> |
---|
996 | class GraphMap : public ReferenceMap<K, V, V&, const V&> { |
---|
997 | typedef ReferenceMap<K, V, V&, const V&> Parent; |
---|
998 | |
---|
999 | public: |
---|
1000 | |
---|
1001 | /// The key type of the map. |
---|
1002 | typedef K Key; |
---|
1003 | /// The value type of the map. |
---|
1004 | typedef V Value; |
---|
1005 | /// The reference type of the map. |
---|
1006 | typedef Value& Reference; |
---|
1007 | /// The const reference type of the map. |
---|
1008 | typedef const Value& ConstReference; |
---|
1009 | |
---|
1010 | // The reference map tag. |
---|
1011 | typedef True ReferenceMapTag; |
---|
1012 | |
---|
1013 | /// \brief Construct a new map. |
---|
1014 | /// |
---|
1015 | /// Construct a new map for the graph. |
---|
1016 | explicit GraphMap(const GR&) {} |
---|
1017 | /// \brief Construct a new map with default value. |
---|
1018 | /// |
---|
1019 | /// Construct a new map for the graph and initalize the values. |
---|
1020 | GraphMap(const GR&, const Value&) {} |
---|
1021 | |
---|
1022 | private: |
---|
1023 | /// \brief Copy constructor. |
---|
1024 | /// |
---|
1025 | /// Copy Constructor. |
---|
1026 | GraphMap(const GraphMap&) : Parent() {} |
---|
1027 | |
---|
1028 | /// \brief Assignment operator. |
---|
1029 | /// |
---|
1030 | /// Assignment operator. It does not mofify the underlying graph, |
---|
1031 | /// it just iterates on the current item set and set the map |
---|
1032 | /// with the value returned by the assigned map. |
---|
1033 | template <typename CMap> |
---|
1034 | GraphMap& operator=(const CMap&) { |
---|
1035 | checkConcept<ReadMap<Key, Value>, CMap>(); |
---|
1036 | return *this; |
---|
1037 | } |
---|
1038 | |
---|
1039 | public: |
---|
1040 | template<typename _Map> |
---|
1041 | struct Constraints { |
---|
1042 | void constraints() { |
---|
1043 | checkConcept |
---|
1044 | <ReferenceMap<Key, Value, Value&, const Value&>, _Map>(); |
---|
1045 | _Map m1(g); |
---|
1046 | _Map m2(g,t); |
---|
1047 | |
---|
1048 | // Copy constructor |
---|
1049 | // _Map m3(m); |
---|
1050 | |
---|
1051 | // Assignment operator |
---|
1052 | // ReadMap<Key, Value> cmap; |
---|
1053 | // m3 = cmap; |
---|
1054 | |
---|
1055 | ignore_unused_variable_warning(m1); |
---|
1056 | ignore_unused_variable_warning(m2); |
---|
1057 | // ignore_unused_variable_warning(m3); |
---|
1058 | } |
---|
1059 | |
---|
1060 | const _Map &m; |
---|
1061 | const GR &g; |
---|
1062 | const typename GraphMap::Value &t; |
---|
1063 | }; |
---|
1064 | |
---|
1065 | }; |
---|
1066 | |
---|
1067 | /// \brief Skeleton class for mappable directed graphs. |
---|
1068 | /// |
---|
1069 | /// This class describes the interface of mappable directed graphs. |
---|
1070 | /// It extends \ref BaseDigraphComponent with the standard digraph |
---|
1071 | /// map classes, namely \c NodeMap and \c ArcMap. |
---|
1072 | /// This concept is part of the Digraph concept. |
---|
1073 | template <typename BAS = BaseDigraphComponent> |
---|
1074 | class MappableDigraphComponent : public BAS { |
---|
1075 | public: |
---|
1076 | |
---|
1077 | typedef BAS Base; |
---|
1078 | typedef typename Base::Node Node; |
---|
1079 | typedef typename Base::Arc Arc; |
---|
1080 | |
---|
1081 | typedef MappableDigraphComponent Digraph; |
---|
1082 | |
---|
1083 | /// \brief Standard graph map for the nodes. |
---|
1084 | /// |
---|
1085 | /// Standard graph map for the nodes. |
---|
1086 | /// It conforms to the ReferenceMap concept. |
---|
1087 | template <typename V> |
---|
1088 | class NodeMap : public GraphMap<MappableDigraphComponent, Node, V> { |
---|
1089 | typedef GraphMap<MappableDigraphComponent, Node, V> Parent; |
---|
1090 | |
---|
1091 | public: |
---|
1092 | /// \brief Construct a new map. |
---|
1093 | /// |
---|
1094 | /// Construct a new map for the digraph. |
---|
1095 | explicit NodeMap(const MappableDigraphComponent& digraph) |
---|
1096 | : Parent(digraph) {} |
---|
1097 | |
---|
1098 | /// \brief Construct a new map with default value. |
---|
1099 | /// |
---|
1100 | /// Construct a new map for the digraph and initalize the values. |
---|
1101 | NodeMap(const MappableDigraphComponent& digraph, const V& value) |
---|
1102 | : Parent(digraph, value) {} |
---|
1103 | |
---|
1104 | private: |
---|
1105 | /// \brief Copy constructor. |
---|
1106 | /// |
---|
1107 | /// Copy Constructor. |
---|
1108 | NodeMap(const NodeMap& nm) : Parent(nm) {} |
---|
1109 | |
---|
1110 | /// \brief Assignment operator. |
---|
1111 | /// |
---|
1112 | /// Assignment operator. |
---|
1113 | template <typename CMap> |
---|
1114 | NodeMap& operator=(const CMap&) { |
---|
1115 | checkConcept<ReadMap<Node, V>, CMap>(); |
---|
1116 | return *this; |
---|
1117 | } |
---|
1118 | |
---|
1119 | }; |
---|
1120 | |
---|
1121 | /// \brief Standard graph map for the arcs. |
---|
1122 | /// |
---|
1123 | /// Standard graph map for the arcs. |
---|
1124 | /// It conforms to the ReferenceMap concept. |
---|
1125 | template <typename V> |
---|
1126 | class ArcMap : public GraphMap<MappableDigraphComponent, Arc, V> { |
---|
1127 | typedef GraphMap<MappableDigraphComponent, Arc, V> Parent; |
---|
1128 | |
---|
1129 | public: |
---|
1130 | /// \brief Construct a new map. |
---|
1131 | /// |
---|
1132 | /// Construct a new map for the digraph. |
---|
1133 | explicit ArcMap(const MappableDigraphComponent& digraph) |
---|
1134 | : Parent(digraph) {} |
---|
1135 | |
---|
1136 | /// \brief Construct a new map with default value. |
---|
1137 | /// |
---|
1138 | /// Construct a new map for the digraph and initalize the values. |
---|
1139 | ArcMap(const MappableDigraphComponent& digraph, const V& value) |
---|
1140 | : Parent(digraph, value) {} |
---|
1141 | |
---|
1142 | private: |
---|
1143 | /// \brief Copy constructor. |
---|
1144 | /// |
---|
1145 | /// Copy Constructor. |
---|
1146 | ArcMap(const ArcMap& nm) : Parent(nm) {} |
---|
1147 | |
---|
1148 | /// \brief Assignment operator. |
---|
1149 | /// |
---|
1150 | /// Assignment operator. |
---|
1151 | template <typename CMap> |
---|
1152 | ArcMap& operator=(const CMap&) { |
---|
1153 | checkConcept<ReadMap<Arc, V>, CMap>(); |
---|
1154 | return *this; |
---|
1155 | } |
---|
1156 | |
---|
1157 | }; |
---|
1158 | |
---|
1159 | |
---|
1160 | template <typename _Digraph> |
---|
1161 | struct Constraints { |
---|
1162 | |
---|
1163 | struct Dummy { |
---|
1164 | int value; |
---|
1165 | Dummy() : value(0) {} |
---|
1166 | Dummy(int _v) : value(_v) {} |
---|
1167 | }; |
---|
1168 | |
---|
1169 | void constraints() { |
---|
1170 | checkConcept<Base, _Digraph>(); |
---|
1171 | { // int map test |
---|
1172 | typedef typename _Digraph::template NodeMap<int> IntNodeMap; |
---|
1173 | checkConcept<GraphMap<_Digraph, typename _Digraph::Node, int>, |
---|
1174 | IntNodeMap >(); |
---|
1175 | } { // bool map test |
---|
1176 | typedef typename _Digraph::template NodeMap<bool> BoolNodeMap; |
---|
1177 | checkConcept<GraphMap<_Digraph, typename _Digraph::Node, bool>, |
---|
1178 | BoolNodeMap >(); |
---|
1179 | } { // Dummy map test |
---|
1180 | typedef typename _Digraph::template NodeMap<Dummy> DummyNodeMap; |
---|
1181 | checkConcept<GraphMap<_Digraph, typename _Digraph::Node, Dummy>, |
---|
1182 | DummyNodeMap >(); |
---|
1183 | } |
---|
1184 | |
---|
1185 | { // int map test |
---|
1186 | typedef typename _Digraph::template ArcMap<int> IntArcMap; |
---|
1187 | checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, int>, |
---|
1188 | IntArcMap >(); |
---|
1189 | } { // bool map test |
---|
1190 | typedef typename _Digraph::template ArcMap<bool> BoolArcMap; |
---|
1191 | checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, bool>, |
---|
1192 | BoolArcMap >(); |
---|
1193 | } { // Dummy map test |
---|
1194 | typedef typename _Digraph::template ArcMap<Dummy> DummyArcMap; |
---|
1195 | checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, Dummy>, |
---|
1196 | DummyArcMap >(); |
---|
1197 | } |
---|
1198 | } |
---|
1199 | |
---|
1200 | const _Digraph& digraph; |
---|
1201 | }; |
---|
1202 | }; |
---|
1203 | |
---|
1204 | /// \brief Skeleton class for mappable undirected graphs. |
---|
1205 | /// |
---|
1206 | /// This class describes the interface of mappable undirected graphs. |
---|
1207 | /// It extends \ref MappableDigraphComponent with the standard graph |
---|
1208 | /// map class for edges (\c EdgeMap). |
---|
1209 | /// This concept is part of the Graph concept. |
---|
1210 | template <typename BAS = BaseGraphComponent> |
---|
1211 | class MappableGraphComponent : public MappableDigraphComponent<BAS> { |
---|
1212 | public: |
---|
1213 | |
---|
1214 | typedef BAS Base; |
---|
1215 | typedef typename Base::Edge Edge; |
---|
1216 | |
---|
1217 | typedef MappableGraphComponent Graph; |
---|
1218 | |
---|
1219 | /// \brief Standard graph map for the edges. |
---|
1220 | /// |
---|
1221 | /// Standard graph map for the edges. |
---|
1222 | /// It conforms to the ReferenceMap concept. |
---|
1223 | template <typename V> |
---|
1224 | class EdgeMap : public GraphMap<MappableGraphComponent, Edge, V> { |
---|
1225 | typedef GraphMap<MappableGraphComponent, Edge, V> Parent; |
---|
1226 | |
---|
1227 | public: |
---|
1228 | /// \brief Construct a new map. |
---|
1229 | /// |
---|
1230 | /// Construct a new map for the graph. |
---|
1231 | explicit EdgeMap(const MappableGraphComponent& graph) |
---|
1232 | : Parent(graph) {} |
---|
1233 | |
---|
1234 | /// \brief Construct a new map with default value. |
---|
1235 | /// |
---|
1236 | /// Construct a new map for the graph and initalize the values. |
---|
1237 | EdgeMap(const MappableGraphComponent& graph, const V& value) |
---|
1238 | : Parent(graph, value) {} |
---|
1239 | |
---|
1240 | private: |
---|
1241 | /// \brief Copy constructor. |
---|
1242 | /// |
---|
1243 | /// Copy Constructor. |
---|
1244 | EdgeMap(const EdgeMap& nm) : Parent(nm) {} |
---|
1245 | |
---|
1246 | /// \brief Assignment operator. |
---|
1247 | /// |
---|
1248 | /// Assignment operator. |
---|
1249 | template <typename CMap> |
---|
1250 | EdgeMap& operator=(const CMap&) { |
---|
1251 | checkConcept<ReadMap<Edge, V>, CMap>(); |
---|
1252 | return *this; |
---|
1253 | } |
---|
1254 | |
---|
1255 | }; |
---|
1256 | |
---|
1257 | |
---|
1258 | template <typename _Graph> |
---|
1259 | struct Constraints { |
---|
1260 | |
---|
1261 | struct Dummy { |
---|
1262 | int value; |
---|
1263 | Dummy() : value(0) {} |
---|
1264 | Dummy(int _v) : value(_v) {} |
---|
1265 | }; |
---|
1266 | |
---|
1267 | void constraints() { |
---|
1268 | checkConcept<MappableDigraphComponent<Base>, _Graph>(); |
---|
1269 | |
---|
1270 | { // int map test |
---|
1271 | typedef typename _Graph::template EdgeMap<int> IntEdgeMap; |
---|
1272 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, int>, |
---|
1273 | IntEdgeMap >(); |
---|
1274 | } { // bool map test |
---|
1275 | typedef typename _Graph::template EdgeMap<bool> BoolEdgeMap; |
---|
1276 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, bool>, |
---|
1277 | BoolEdgeMap >(); |
---|
1278 | } { // Dummy map test |
---|
1279 | typedef typename _Graph::template EdgeMap<Dummy> DummyEdgeMap; |
---|
1280 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, Dummy>, |
---|
1281 | DummyEdgeMap >(); |
---|
1282 | } |
---|
1283 | } |
---|
1284 | |
---|
1285 | const _Graph& graph; |
---|
1286 | }; |
---|
1287 | }; |
---|
1288 | |
---|
1289 | /// \brief Skeleton class for extendable directed graphs. |
---|
1290 | /// |
---|
1291 | /// This class describes the interface of extendable directed graphs. |
---|
1292 | /// It extends \ref BaseDigraphComponent with functions for adding |
---|
1293 | /// nodes and arcs to the digraph. |
---|
1294 | /// This concept requires \ref AlterableDigraphComponent. |
---|
1295 | template <typename BAS = BaseDigraphComponent> |
---|
1296 | class ExtendableDigraphComponent : public BAS { |
---|
1297 | public: |
---|
1298 | typedef BAS Base; |
---|
1299 | |
---|
1300 | typedef typename Base::Node Node; |
---|
1301 | typedef typename Base::Arc Arc; |
---|
1302 | |
---|
1303 | /// \brief Add a new node to the digraph. |
---|
1304 | /// |
---|
1305 | /// This function adds a new node to the digraph. |
---|
1306 | Node addNode() { |
---|
1307 | return INVALID; |
---|
1308 | } |
---|
1309 | |
---|
1310 | /// \brief Add a new arc connecting the given two nodes. |
---|
1311 | /// |
---|
1312 | /// This function adds a new arc connecting the given two nodes |
---|
1313 | /// of the digraph. |
---|
1314 | Arc addArc(const Node&, const Node&) { |
---|
1315 | return INVALID; |
---|
1316 | } |
---|
1317 | |
---|
1318 | template <typename _Digraph> |
---|
1319 | struct Constraints { |
---|
1320 | void constraints() { |
---|
1321 | checkConcept<Base, _Digraph>(); |
---|
1322 | typename _Digraph::Node node_a, node_b; |
---|
1323 | node_a = digraph.addNode(); |
---|
1324 | node_b = digraph.addNode(); |
---|
1325 | typename _Digraph::Arc arc; |
---|
1326 | arc = digraph.addArc(node_a, node_b); |
---|
1327 | } |
---|
1328 | |
---|
1329 | _Digraph& digraph; |
---|
1330 | }; |
---|
1331 | }; |
---|
1332 | |
---|
1333 | /// \brief Skeleton class for extendable undirected graphs. |
---|
1334 | /// |
---|
1335 | /// This class describes the interface of extendable undirected graphs. |
---|
1336 | /// It extends \ref BaseGraphComponent with functions for adding |
---|
1337 | /// nodes and edges to the graph. |
---|
1338 | /// This concept requires \ref AlterableGraphComponent. |
---|
1339 | template <typename BAS = BaseGraphComponent> |
---|
1340 | class ExtendableGraphComponent : public BAS { |
---|
1341 | public: |
---|
1342 | |
---|
1343 | typedef BAS Base; |
---|
1344 | typedef typename Base::Node Node; |
---|
1345 | typedef typename Base::Edge Edge; |
---|
1346 | |
---|
1347 | /// \brief Add a new node to the digraph. |
---|
1348 | /// |
---|
1349 | /// This function adds a new node to the digraph. |
---|
1350 | Node addNode() { |
---|
1351 | return INVALID; |
---|
1352 | } |
---|
1353 | |
---|
1354 | /// \brief Add a new edge connecting the given two nodes. |
---|
1355 | /// |
---|
1356 | /// This function adds a new edge connecting the given two nodes |
---|
1357 | /// of the graph. |
---|
1358 | Edge addEdge(const Node&, const Node&) { |
---|
1359 | return INVALID; |
---|
1360 | } |
---|
1361 | |
---|
1362 | template <typename _Graph> |
---|
1363 | struct Constraints { |
---|
1364 | void constraints() { |
---|
1365 | checkConcept<Base, _Graph>(); |
---|
1366 | typename _Graph::Node node_a, node_b; |
---|
1367 | node_a = graph.addNode(); |
---|
1368 | node_b = graph.addNode(); |
---|
1369 | typename _Graph::Edge edge; |
---|
1370 | edge = graph.addEdge(node_a, node_b); |
---|
1371 | } |
---|
1372 | |
---|
1373 | _Graph& graph; |
---|
1374 | }; |
---|
1375 | }; |
---|
1376 | |
---|
1377 | /// \brief Skeleton class for erasable directed graphs. |
---|
1378 | /// |
---|
1379 | /// This class describes the interface of erasable directed graphs. |
---|
1380 | /// It extends \ref BaseDigraphComponent with functions for removing |
---|
1381 | /// nodes and arcs from the digraph. |
---|
1382 | /// This concept requires \ref AlterableDigraphComponent. |
---|
1383 | template <typename BAS = BaseDigraphComponent> |
---|
1384 | class ErasableDigraphComponent : public BAS { |
---|
1385 | public: |
---|
1386 | |
---|
1387 | typedef BAS Base; |
---|
1388 | typedef typename Base::Node Node; |
---|
1389 | typedef typename Base::Arc Arc; |
---|
1390 | |
---|
1391 | /// \brief Erase a node from the digraph. |
---|
1392 | /// |
---|
1393 | /// This function erases the given node from the digraph and all arcs |
---|
1394 | /// connected to the node. |
---|
1395 | void erase(const Node&) {} |
---|
1396 | |
---|
1397 | /// \brief Erase an arc from the digraph. |
---|
1398 | /// |
---|
1399 | /// This function erases the given arc from the digraph. |
---|
1400 | void erase(const Arc&) {} |
---|
1401 | |
---|
1402 | template <typename _Digraph> |
---|
1403 | struct Constraints { |
---|
1404 | void constraints() { |
---|
1405 | checkConcept<Base, _Digraph>(); |
---|
1406 | const typename _Digraph::Node node(INVALID); |
---|
1407 | digraph.erase(node); |
---|
1408 | const typename _Digraph::Arc arc(INVALID); |
---|
1409 | digraph.erase(arc); |
---|
1410 | } |
---|
1411 | |
---|
1412 | _Digraph& digraph; |
---|
1413 | }; |
---|
1414 | }; |
---|
1415 | |
---|
1416 | /// \brief Skeleton class for erasable undirected graphs. |
---|
1417 | /// |
---|
1418 | /// This class describes the interface of erasable undirected graphs. |
---|
1419 | /// It extends \ref BaseGraphComponent with functions for removing |
---|
1420 | /// nodes and edges from the graph. |
---|
1421 | /// This concept requires \ref AlterableGraphComponent. |
---|
1422 | template <typename BAS = BaseGraphComponent> |
---|
1423 | class ErasableGraphComponent : public BAS { |
---|
1424 | public: |
---|
1425 | |
---|
1426 | typedef BAS Base; |
---|
1427 | typedef typename Base::Node Node; |
---|
1428 | typedef typename Base::Edge Edge; |
---|
1429 | |
---|
1430 | /// \brief Erase a node from the graph. |
---|
1431 | /// |
---|
1432 | /// This function erases the given node from the graph and all edges |
---|
1433 | /// connected to the node. |
---|
1434 | void erase(const Node&) {} |
---|
1435 | |
---|
1436 | /// \brief Erase an edge from the digraph. |
---|
1437 | /// |
---|
1438 | /// This function erases the given edge from the digraph. |
---|
1439 | void erase(const Edge&) {} |
---|
1440 | |
---|
1441 | template <typename _Graph> |
---|
1442 | struct Constraints { |
---|
1443 | void constraints() { |
---|
1444 | checkConcept<Base, _Graph>(); |
---|
1445 | const typename _Graph::Node node(INVALID); |
---|
1446 | graph.erase(node); |
---|
1447 | const typename _Graph::Edge edge(INVALID); |
---|
1448 | graph.erase(edge); |
---|
1449 | } |
---|
1450 | |
---|
1451 | _Graph& graph; |
---|
1452 | }; |
---|
1453 | }; |
---|
1454 | |
---|
1455 | /// \brief Skeleton class for clearable directed graphs. |
---|
1456 | /// |
---|
1457 | /// This class describes the interface of clearable directed graphs. |
---|
1458 | /// It extends \ref BaseDigraphComponent with a function for clearing |
---|
1459 | /// the digraph. |
---|
1460 | /// This concept requires \ref AlterableDigraphComponent. |
---|
1461 | template <typename BAS = BaseDigraphComponent> |
---|
1462 | class ClearableDigraphComponent : public BAS { |
---|
1463 | public: |
---|
1464 | |
---|
1465 | typedef BAS Base; |
---|
1466 | |
---|
1467 | /// \brief Erase all nodes and arcs from the digraph. |
---|
1468 | /// |
---|
1469 | /// This function erases all nodes and arcs from the digraph. |
---|
1470 | void clear() {} |
---|
1471 | |
---|
1472 | template <typename _Digraph> |
---|
1473 | struct Constraints { |
---|
1474 | void constraints() { |
---|
1475 | checkConcept<Base, _Digraph>(); |
---|
1476 | digraph.clear(); |
---|
1477 | } |
---|
1478 | |
---|
1479 | _Digraph& digraph; |
---|
1480 | }; |
---|
1481 | }; |
---|
1482 | |
---|
1483 | /// \brief Skeleton class for clearable undirected graphs. |
---|
1484 | /// |
---|
1485 | /// This class describes the interface of clearable undirected graphs. |
---|
1486 | /// It extends \ref BaseGraphComponent with a function for clearing |
---|
1487 | /// the graph. |
---|
1488 | /// This concept requires \ref AlterableGraphComponent. |
---|
1489 | template <typename BAS = BaseGraphComponent> |
---|
1490 | class ClearableGraphComponent : public ClearableDigraphComponent<BAS> { |
---|
1491 | public: |
---|
1492 | |
---|
1493 | typedef BAS Base; |
---|
1494 | |
---|
1495 | /// \brief Erase all nodes and edges from the graph. |
---|
1496 | /// |
---|
1497 | /// This function erases all nodes and edges from the graph. |
---|
1498 | void clear() {} |
---|
1499 | |
---|
1500 | template <typename _Graph> |
---|
1501 | struct Constraints { |
---|
1502 | void constraints() { |
---|
1503 | checkConcept<Base, _Graph>(); |
---|
1504 | graph.clear(); |
---|
1505 | } |
---|
1506 | |
---|
1507 | _Graph& graph; |
---|
1508 | }; |
---|
1509 | }; |
---|
1510 | |
---|
1511 | } |
---|
1512 | |
---|
1513 | } |
---|
1514 | |
---|
1515 | #endif |
---|