1 | /* -*- C++ -*- |
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2 | * src/lemon/concept/graph_component.h - Part of LEMON, a generic C++ optimization library |
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3 | * |
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4 | * Copyright (C) 2004 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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5 | * (Egervary Combinatorial Optimization Research Group, EGRES). |
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6 | * |
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7 | * Permission to use, modify and distribute this software is granted |
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8 | * provided that this copyright notice appears in all copies. For |
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9 | * precise terms see the accompanying LICENSE file. |
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10 | * |
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11 | * This software is provided "AS IS" with no warranty of any kind, |
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12 | * express or implied, and with no claim as to its suitability for any |
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13 | * purpose. |
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14 | * |
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15 | */ |
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16 | |
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17 | ///\ingroup concept |
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18 | ///\file |
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19 | ///\brief The graph components. |
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20 | |
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21 | |
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22 | #ifndef LEMON_CONCEPT_GRAPH_COMPONENT_H |
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23 | #define LEMON_CONCEPT_GRAPH_COMPONENT_H |
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24 | |
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25 | #include <lemon/invalid.h> |
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26 | #include <lemon/concept/maps.h> |
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27 | |
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28 | namespace lemon { |
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29 | namespace concept { |
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30 | |
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31 | |
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32 | /**************** Graph iterator concepts ****************/ |
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33 | |
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34 | /// Skeleton class for graph Node and Edge |
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35 | |
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36 | /// \note Because Node and Edge are forbidden to inherit from the same |
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37 | /// base class, this is a template. For Node you should instantiate it |
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38 | /// with character 'n' and for Edge with 'e'. |
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39 | |
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40 | template<char _selector> |
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41 | class GraphItem { |
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42 | public: |
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43 | /// Default constructor. |
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44 | |
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45 | /// @warning The default constructor sets the item |
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46 | /// to an undefined value. |
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47 | GraphItem() {} |
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48 | /// Copy constructor. |
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49 | |
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50 | /// Copy constructor. |
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51 | /// |
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52 | GraphItem(GraphItem const&) {} |
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53 | /// Invalid constructor \& conversion. |
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54 | |
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55 | /// This constructor initializes the item to be invalid. |
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56 | /// \sa Invalid for more details. |
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57 | GraphItem(Invalid) {} |
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58 | /// Assign operator for nodes. |
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59 | |
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60 | /// The nodes are assignable. |
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61 | /// |
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62 | GraphItem& operator=(GraphItem const&) { return *this; } |
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63 | /// Equality operator. |
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64 | |
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65 | /// Two iterators are equal if and only if they represents the |
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66 | /// same node in the graph or both are invalid. |
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67 | bool operator==(GraphItem) const { return false; } |
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68 | /// Inequality operator. |
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69 | |
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70 | /// \sa operator==(const Node& n) |
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71 | /// |
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72 | bool operator!=(GraphItem) const { return false; } |
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73 | |
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74 | // Technical requirement. Do we really need this? |
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75 | // bool operator<(GraphItem) const { return false; } |
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76 | |
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77 | |
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78 | template<typename _GraphItem> |
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79 | struct Constraints { |
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80 | void constraints() { |
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81 | _GraphItem i1; |
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82 | _GraphItem i2 = i1; |
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83 | _GraphItem i3 = INVALID; |
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84 | |
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85 | i1 = i2 = i3; |
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86 | |
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87 | bool b; |
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88 | // b = (ia == ib) && (ia != ib) && (ia < ib); |
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89 | b = (ia == ib) && (ia != ib); |
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90 | b = (ia == INVALID) && (ib != INVALID); |
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91 | } |
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92 | |
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93 | const _GraphItem &ia; |
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94 | const _GraphItem &ib; |
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95 | }; |
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96 | }; |
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97 | |
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98 | /// An empty base graph class. |
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99 | |
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100 | /// This class provides the minimal set of features needed for a graph |
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101 | /// structure. All graph concepts have to be conform to this base |
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102 | /// graph. |
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103 | /// |
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104 | /// \bug This is not true. The minimal graph concept is the |
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105 | /// BaseIterableGraphComponent. |
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106 | |
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107 | class BaseGraphComponent { |
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108 | public: |
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109 | |
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110 | typedef BaseGraphComponent Graph; |
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111 | |
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112 | /// Node class of the graph. |
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113 | |
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114 | /// This class represents the Nodes of the graph. |
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115 | /// |
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116 | typedef GraphItem<'n'> Node; |
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117 | |
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118 | /// Edge class of the graph. |
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119 | |
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120 | /// This class represents the Edges of the graph. |
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121 | /// |
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122 | typedef GraphItem<'e'> Edge; |
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123 | |
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124 | ///Gives back the target node of an edge. |
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125 | |
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126 | ///Gives back the target node of an edge. |
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127 | /// |
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128 | Node target(const Edge&) const { return INVALID;} |
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129 | |
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130 | ///Gives back the source node of an edge. |
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131 | |
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132 | ///Gives back the source node of an edge. |
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133 | /// |
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134 | Node source(const Edge&) const { return INVALID;} |
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135 | |
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136 | |
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137 | template <typename _Graph> |
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138 | struct Constraints { |
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139 | typedef typename _Graph::Node Node; |
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140 | typedef typename _Graph::Edge Edge; |
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141 | |
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142 | void constraints() { |
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143 | checkConcept<GraphItem<'n'>, Node>(); |
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144 | checkConcept<GraphItem<'e'>, Edge>(); |
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145 | { |
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146 | Node n; |
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147 | Edge e; |
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148 | n = graph.source(e); |
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149 | n = graph.target(e); |
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150 | } |
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151 | } |
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152 | |
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153 | const _Graph& graph; |
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154 | }; |
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155 | }; |
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156 | |
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157 | /// An empty iterable base graph class. |
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158 | |
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159 | /// This class provides beside the core graph features |
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160 | /// core iterable interface for the graph structure. |
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161 | /// Most of the base graphs should be conform to this concept. |
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162 | |
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163 | class BaseIterableGraphComponent : virtual public BaseGraphComponent { |
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164 | public: |
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165 | |
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166 | typedef BaseGraphComponent::Node Node; |
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167 | typedef BaseGraphComponent::Edge Edge; |
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168 | |
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169 | /// Gives back the first Node in the iterating order. |
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170 | |
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171 | /// Gives back the first Node in the iterating order. |
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172 | /// |
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173 | void first(Node&) const {} |
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174 | |
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175 | /// Gives back the next Node in the iterating order. |
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176 | |
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177 | /// Gives back the next Node in the iterating order. |
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178 | /// |
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179 | void next(Node&) const {} |
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180 | |
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181 | /// Gives back the first Edge in the iterating order. |
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182 | |
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183 | /// Gives back the first Edge in the iterating order. |
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184 | /// |
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185 | void first(Edge&) const {} |
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186 | /// Gives back the next Edge in the iterating order. |
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187 | |
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188 | /// Gives back the next Edge in the iterating order. |
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189 | /// |
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190 | void next(Edge&) const {} |
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191 | |
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192 | |
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193 | /// Gives back the first of the Edges point to the given Node. |
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194 | |
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195 | /// Gives back the first of the Edges point to the given Node. |
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196 | /// |
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197 | void firstIn(Edge&, const Node&) const {} |
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198 | |
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199 | /// Gives back the next of the Edges points to the given Node. |
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200 | |
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201 | |
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202 | /// Gives back the next of the Edges points to the given Node. |
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203 | /// |
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204 | void nextIn(Edge&) const {} |
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205 | |
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206 | /// Gives back the first of the Edges start from the given Node. |
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207 | |
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208 | /// Gives back the first of the Edges start from the given Node. |
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209 | /// |
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210 | void firstOut(Edge&, const Node&) const {} |
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211 | |
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212 | /// Gives back the next of the Edges start from the given Node. |
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213 | |
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214 | /// Gives back the next of the Edges start from the given Node. |
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215 | /// |
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216 | void nextOut(Edge&) const {} |
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217 | |
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218 | |
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219 | template <typename _Graph> |
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220 | struct Constraints { |
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221 | |
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222 | void constraints() { |
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223 | checkConcept< BaseGraphComponent, _Graph >(); |
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224 | typename _Graph::Node node; |
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225 | typename _Graph::Edge edge; |
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226 | { |
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227 | graph.first(node); |
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228 | graph.next(node); |
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229 | } |
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230 | { |
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231 | graph.first(edge); |
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232 | graph.next(edge); |
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233 | } |
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234 | { |
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235 | graph.firstIn(edge, node); |
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236 | graph.nextIn(edge); |
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237 | } |
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238 | { |
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239 | graph.firstOut(edge, node); |
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240 | graph.nextOut(edge); |
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241 | } |
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242 | } |
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243 | |
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244 | const _Graph& graph; |
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245 | }; |
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246 | }; |
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247 | |
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248 | /// An empty idable base graph class. |
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249 | |
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250 | /// This class provides beside the core graph features |
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251 | /// core id functions for the graph structure. |
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252 | /// The most of the base graphs should be conform to this concept. |
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253 | /// The id's are unique and immutable. |
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254 | class IDableGraphComponent : virtual public BaseGraphComponent { |
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255 | public: |
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256 | |
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257 | typedef BaseGraphComponent::Node Node; |
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258 | typedef BaseGraphComponent::Edge Edge; |
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259 | |
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260 | /// Gives back an unique integer id for the Node. |
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261 | |
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262 | /// Gives back an unique integer id for the Node. |
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263 | /// |
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264 | int id(const Node&) const { return -1;} |
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265 | |
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266 | /// Gives back an unique integer id for the Edge. |
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267 | |
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268 | /// Gives back an unique integer id for the Edge. |
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269 | /// |
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270 | int id(const Edge&) const { return -1;} |
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271 | |
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272 | template <typename _Graph> |
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273 | struct Constraints { |
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274 | |
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275 | void constraints() { |
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276 | checkConcept< BaseGraphComponent, _Graph >(); |
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277 | typename _Graph::Node node; |
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278 | int nid = graph.id(node); |
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279 | nid = graph.id(node); |
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280 | typename _Graph::Edge edge; |
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281 | int eid = graph.id(edge); |
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282 | eid = graph.id(edge); |
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283 | } |
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284 | |
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285 | const _Graph& graph; |
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286 | }; |
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287 | }; |
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288 | |
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289 | |
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290 | /// An empty max-idable base graph class. |
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291 | |
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292 | /// This class provides beside the core graph features |
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293 | /// core max id functions for the graph structure. |
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294 | /// The most of the base graphs should be conform to this concept. |
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295 | /// The id's are unique and immutable. |
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296 | class MaxIDableGraphComponent : virtual public BaseGraphComponent { |
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297 | public: |
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298 | |
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299 | /// Gives back an integer greater or equal to the maximum Node id. |
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300 | |
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301 | /// Gives back an integer greater or equal to the maximum Node id. |
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302 | /// |
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303 | int maxId(Node = INVALID) const { return -1;} |
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304 | |
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305 | /// Gives back an integer greater or equal to the maximum Edge id. |
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306 | |
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307 | /// Gives back an integer greater or equal to the maximum Edge id. |
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308 | /// |
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309 | int maxId(Edge = INVALID) const { return -1;} |
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310 | |
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311 | template <typename _Graph> |
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312 | struct Constraints { |
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313 | |
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314 | void constraints() { |
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315 | checkConcept<BaseGraphComponent, _Graph>(); |
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316 | int nid = graph.maxId(typename _Graph::Node()); |
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317 | ignore_unused_variable_warning(nid); |
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318 | int eid = graph.maxId(typename _Graph::Edge()); |
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319 | ignore_unused_variable_warning(eid); |
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320 | } |
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321 | |
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322 | const _Graph& graph; |
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323 | }; |
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324 | }; |
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325 | |
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326 | /// An empty extendable base graph class. |
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327 | |
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328 | /// This class provides beside the core graph features |
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329 | /// core graph extend interface for the graph structure. |
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330 | /// The most of the base graphs should be conform to this concept. |
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331 | class BaseExtendableGraphComponent : virtual public BaseGraphComponent { |
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332 | public: |
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333 | |
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334 | typedef BaseGraphComponent::Node Node; |
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335 | typedef BaseGraphComponent::Edge Edge; |
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336 | |
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337 | /// Adds a new Node to the graph. |
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338 | |
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339 | /// Adds a new Node to the graph. |
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340 | /// |
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341 | Node addNode() { |
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342 | return INVALID; |
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343 | } |
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344 | |
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345 | /// Adds a new Edge connects the two Nodes to the graph. |
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346 | |
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347 | /// Adds a new Edge connects the two Nodes to the graph. |
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348 | /// |
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349 | Edge addEdge(const Node& from, const Node& to) { |
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350 | return INVALID; |
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351 | } |
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352 | |
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353 | template <typename _Graph> |
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354 | struct Constraints { |
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355 | void constraints() { |
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356 | checkConcept<BaseGraphComponent, _Graph >(); |
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357 | typename _Graph::Node node_a, node_b; |
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358 | node_a = graph.addNode(); |
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359 | typename _Graph::Edge edge; |
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360 | edge = graph.addEdge(node_a, node_b); |
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361 | } |
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362 | |
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363 | _Graph& graph; |
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364 | }; |
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365 | }; |
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366 | |
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367 | /// An empty erasable base graph class. |
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368 | |
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369 | /// This class provides beside the core graph features |
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370 | /// core erase functions for the graph structure. |
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371 | /// The most of the base graphs should be conform to this concept. |
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372 | class BaseErasableGraphComponent : virtual public BaseGraphComponent { |
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373 | public: |
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374 | |
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375 | typedef BaseGraphComponent::Node Node; |
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376 | typedef BaseGraphComponent::Edge Edge; |
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377 | |
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378 | /// Erase a Node from the graph. |
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379 | |
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380 | /// Erase a Node from the graph. This function should not |
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381 | /// erase edges connecting to the Node. |
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382 | void erase(const Node&) {} |
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383 | |
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384 | /// Erase an Edge from the graph. |
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385 | |
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386 | /// Erase an Edge from the graph. |
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387 | /// |
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388 | void erase(const Edge&) {} |
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389 | |
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390 | template <typename _Graph> |
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391 | struct Constraints { |
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392 | void constraints() { |
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393 | checkConcept<BaseGraphComponent, _Graph>(); |
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394 | typename _Graph::Node node; |
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395 | graph.erase(node); |
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396 | typename _Graph::Edge edge; |
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397 | graph.erase(edge); |
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398 | } |
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399 | |
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400 | _Graph& graph; |
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401 | }; |
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402 | }; |
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403 | |
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404 | /// An empty clearable base graph class. |
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405 | |
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406 | /// This class provides beside the core graph features |
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407 | /// core clear functions for the graph structure. |
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408 | /// The most of the base graphs should be conform to this concept. |
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409 | class BaseClearableGraphComponent : virtual public BaseGraphComponent { |
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410 | public: |
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411 | |
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412 | /// Erase all the Nodes and Edges from the graph. |
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413 | |
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414 | /// Erase all the Nodes and Edges from the graph. |
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415 | /// |
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416 | void clear() {} |
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417 | |
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418 | template <typename _Graph> |
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419 | struct Constraints { |
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420 | void constraints() { |
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421 | checkConcept< BaseGraphComponent, _Graph>(); |
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422 | graph.clear(); |
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423 | } |
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424 | |
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425 | _Graph& graph; |
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426 | }; |
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427 | }; |
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428 | |
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429 | |
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430 | /// Skeleton class for graph NodeIt and EdgeIt |
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431 | |
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432 | /// Skeleton class for graph NodeIt and EdgeIt. |
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433 | /// |
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434 | template <typename _Graph, typename _Item> |
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435 | class GraphIterator : public _Item { |
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436 | public: |
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437 | /// \todo Don't we need the Item type as typedef? |
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438 | |
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439 | /// Default constructor. |
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440 | |
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441 | /// @warning The default constructor sets the iterator |
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442 | /// to an undefined value. |
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443 | GraphIterator() {} |
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444 | /// Copy constructor. |
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445 | |
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446 | /// Copy constructor. |
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447 | /// |
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448 | GraphIterator(GraphIterator const&) {} |
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449 | /// Sets the iterator to the first item. |
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450 | |
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451 | /// Sets the iterator to the first item of \c the graph. |
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452 | /// |
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453 | explicit GraphIterator(const _Graph&) {} |
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454 | /// Invalid constructor \& conversion. |
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455 | |
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456 | /// This constructor initializes the item to be invalid. |
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457 | /// \sa Invalid for more details. |
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458 | GraphIterator(Invalid) {} |
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459 | /// Assign operator for items. |
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460 | |
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461 | /// The items are assignable. |
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462 | /// |
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463 | GraphIterator& operator=(GraphIterator const&) { return *this; } |
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464 | /// Next item. |
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465 | |
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466 | /// Assign the iterator to the next item. |
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467 | /// |
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468 | GraphIterator& operator++() { return *this; } |
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469 | // Node operator*() const { return INVALID; } |
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470 | /// Equality operator |
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471 | |
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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 GraphIterator&) const { return true;} |
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475 | /// Inequality operator |
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476 | |
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477 | /// \sa operator==(Node n) |
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478 | /// |
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479 | bool operator!=(const GraphIterator&) const { return true;} |
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480 | |
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481 | template<typename _GraphIterator> |
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482 | struct Constraints { |
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483 | void constraints() { |
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484 | // checkConcept< Item, _GraphIterator >(); |
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485 | _GraphIterator it1(g); |
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486 | |
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487 | /// \todo Do we need NodeIt(Node) kind of constructor? |
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488 | // _GraphIterator it2(bj); |
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489 | _GraphIterator it2; |
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490 | |
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491 | it2 = ++it1; |
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492 | ++it2 = it1; |
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493 | ++(++it1); |
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494 | /// \bug This should be: is_base_and_derived<BaseItem, _GraphIterator> |
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495 | _Item bi = it1; |
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496 | bi = it2; |
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497 | } |
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498 | _Graph& g; |
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499 | }; |
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500 | }; |
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501 | |
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502 | /// Skeleton class for graph InEdgeIt and OutEdgeIt |
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503 | |
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504 | /// \note Because InEdgeIt and OutEdgeIt may not inherit from the same |
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505 | /// base class, the _selector is a additional template parameter. For |
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506 | /// InEdgeIt you should instantiate it with character 'i' and for |
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507 | /// OutEdgeIt with 'o'. |
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508 | /// \todo Is this a good name for this concept? |
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509 | template <typename Graph, |
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510 | typename Edge = typename Graph::Edge, |
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511 | char _selector = '0'> |
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512 | class GraphIncIterator : public Edge { |
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513 | public: |
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514 | /// Default constructor. |
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515 | |
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516 | /// @warning The default constructor sets the iterator |
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517 | /// to an undefined value. |
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518 | GraphIncIterator() {} |
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519 | /// Copy constructor. |
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520 | |
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521 | /// Copy constructor. |
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522 | /// |
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523 | GraphIncIterator(GraphIncIterator const&) {} |
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524 | /// Sets the iterator to the first edge incoming into or outgoing from the node. |
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525 | |
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526 | /// Sets the iterator to the first edge incoming into or outgoing from the node. |
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527 | /// |
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528 | explicit GraphIncIterator(const Graph&, const typename Graph::Node&) {} |
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529 | /// Invalid constructor \& conversion. |
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530 | |
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531 | /// This constructor initializes the item to be invalid. |
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532 | /// \sa Invalid for more details. |
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533 | GraphIncIterator(Invalid) {} |
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534 | /// Assign operator for nodes. |
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535 | |
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536 | /// The nodes are assignable. |
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537 | /// |
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538 | GraphIncIterator& operator=(GraphIncIterator const&) { return *this; } |
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539 | /// Next edge. |
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540 | |
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541 | /// Assign the iterator to the next node. |
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542 | /// |
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543 | GraphIncIterator& operator++() { return *this; } |
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544 | |
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545 | // Node operator*() const { return INVALID; } |
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546 | |
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547 | /// Equality operator |
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548 | |
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549 | /// Two iterators are equal if and only if they point to the |
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550 | /// same object or both are invalid. |
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551 | bool operator==(const GraphIncIterator&) const { return true;} |
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552 | |
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553 | /// Inequality operator |
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554 | |
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555 | /// \sa operator==(Node n) |
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556 | /// |
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557 | bool operator!=(const GraphIncIterator&) const { return true;} |
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558 | |
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559 | template <typename _GraphIncIterator> |
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560 | struct Constraints { |
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561 | typedef typename Graph::Node Node; |
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562 | void constraints() { |
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563 | checkConcept<GraphItem<'e'>, _GraphIncIterator>(); |
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564 | _GraphIncIterator it1(graph, node); |
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565 | /// \todo Do we need OutEdgeIt(Edge) kind of constructor? |
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566 | // _GraphIncIterator it2(edge); |
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567 | _GraphIncIterator it2; |
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568 | |
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569 | it2 = ++it1; |
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570 | ++it2 = it1; |
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571 | ++(++it1); |
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572 | Edge e = it1; |
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573 | e = it2; |
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574 | } |
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575 | |
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576 | Edge& edge; |
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577 | Node& node; |
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578 | Graph& graph; |
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579 | }; |
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580 | }; |
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581 | |
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582 | |
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583 | /// An empty iterable base graph class. |
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584 | |
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585 | /// This class provides beside the core graph features |
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586 | /// iterator based iterable interface for the graph structure. |
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587 | /// This concept is part of the StaticGraphConcept. |
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588 | class IterableGraphComponent : virtual public BaseGraphComponent { |
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589 | |
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590 | public: |
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591 | |
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592 | typedef IterableGraphComponent Graph; |
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593 | |
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594 | typedef BaseGraphComponent::Node Node; |
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595 | typedef BaseGraphComponent::Edge Edge; |
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596 | |
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597 | /// This iterator goes through each node. |
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598 | |
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599 | /// This iterator goes through each node. |
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600 | /// |
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601 | typedef GraphIterator<Graph, Node> NodeIt; |
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602 | /// This iterator goes through each node. |
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603 | |
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604 | /// This iterator goes through each node. |
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605 | /// |
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606 | typedef GraphIterator<Graph, Edge> EdgeIt; |
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607 | /// This iterator goes trough the incoming edges of a node. |
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608 | |
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609 | /// This iterator goes trough the \e inccoming edges of a certain node |
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610 | /// of a graph. |
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611 | typedef GraphIncIterator<Graph, Edge, 'i'> InEdgeIt; |
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612 | /// This iterator goes trough the outgoing edges of a node. |
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613 | |
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614 | /// This iterator goes trough the \e outgoing edges of a certain node |
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615 | /// of a graph. |
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616 | typedef GraphIncIterator<Graph, Edge, 'o'> OutEdgeIt; |
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617 | }; |
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618 | |
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619 | template <typename _Graph> |
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620 | struct Constraints { |
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621 | void constraints() { |
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622 | checkConcept< BaseGraphComponent, _Graph>(); |
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623 | |
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624 | checkConcept<GraphIterator<_Graph, typename _Graph::Edge>, typename _Graph::EdgeIt >(); |
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625 | checkConcept<GraphIterator<_Graph, typename _Graph::Node>, typename _Graph::NodeIt >(); |
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626 | checkConcept<GraphIncIterator<_Graph>, typename _Graph::InEdgeIt >(); |
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627 | checkConcept<GraphIncIterator<_Graph>, typename _Graph::OutEdgeIt >(); |
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628 | } |
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629 | }; |
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630 | |
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631 | |
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632 | template <typename Graph, typename Item, typename _Value> |
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633 | class GraphMap : public ReadWriteMap<Item, _Value> { |
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634 | protected: |
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635 | GraphMap() {} |
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636 | public: |
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637 | explicit GraphMap(const Graph&) {} |
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638 | GraphMap(const Graph&, const _Value&) {} |
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639 | GraphMap(const GraphMap&) {} |
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640 | |
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641 | GraphMap& operator=(const GraphMap&) { return *this;} |
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642 | |
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643 | template<typename _Map> |
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644 | struct Constraints { |
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645 | void constraints() { |
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646 | checkConcept<ReadWriteMap<Item, _Value>, _Map >(); |
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647 | // Construction with a graph parameter |
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648 | _Map a(g); |
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649 | // Constructor with a graph and a default value parameter |
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650 | _Map a2(g,t); |
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651 | // Copy constructor. Do we need it? |
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652 | _Map b=c; |
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653 | // Copy operator. Do we need it? |
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654 | a=b; |
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655 | |
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656 | ignore_unused_variable_warning(a2); |
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657 | } |
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658 | |
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659 | const _Map &c; |
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660 | const Graph &g; |
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661 | const typename GraphMap::Value &t; |
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662 | }; |
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663 | |
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664 | }; |
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665 | |
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666 | /// An empty mappable base graph class. |
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667 | |
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668 | /// This class provides beside the core graph features |
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669 | /// map interface for the graph structure. |
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670 | /// This concept is part of the StaticGraphConcept. |
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671 | class MappableGraphComponent : virtual public BaseGraphComponent { |
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672 | public: |
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673 | |
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674 | typedef MappableGraphComponent Graph; |
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675 | |
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676 | typedef BaseGraphComponent::Node Node; |
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677 | typedef BaseGraphComponent::Edge Edge; |
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678 | |
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679 | /// ReadWrite map of the nodes. |
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680 | |
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681 | /// ReadWrite map of the nodes. |
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682 | /// |
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683 | template <typename _Value> |
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684 | class NodeMap : public GraphMap<Graph, Node, _Value> { |
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685 | private: |
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686 | NodeMap(); |
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687 | public: |
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688 | // \todo call the right parent class constructor |
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689 | explicit NodeMap(const Graph&) {} |
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690 | NodeMap(const Graph&, const _Value&) {} |
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691 | NodeMap(const NodeMap&) {} |
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692 | |
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693 | NodeMap& operator=(const NodeMap&) { return *this;} |
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694 | |
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695 | }; |
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696 | |
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697 | /// ReadWrite map of the edges. |
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698 | |
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699 | /// ReadWrite map of the edges. |
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700 | /// |
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701 | template <typename _Value> |
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702 | class EdgeMap : public GraphMap<Graph, Edge, _Value> { |
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703 | private: |
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704 | EdgeMap(); |
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705 | public: |
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706 | // \todo call the right parent class constructor |
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707 | explicit EdgeMap(const Graph&) {} |
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708 | EdgeMap(const Graph&, const _Value&) {} |
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709 | EdgeMap(const EdgeMap&) {} |
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710 | |
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711 | EdgeMap& operator=(const EdgeMap&) { return *this;} |
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712 | |
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713 | }; |
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714 | |
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715 | template <typename _Graph> |
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716 | struct Constraints { |
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717 | |
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718 | struct Type { |
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719 | int value; |
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720 | Type() : value(0) {} |
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721 | Type(int _v) : value(_v) {} |
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722 | }; |
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723 | |
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724 | void constraints() { |
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725 | checkConcept<BaseGraphComponent, _Graph>(); |
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726 | { // int map test |
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727 | typedef typename _Graph::template NodeMap<int> IntNodeMap; |
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728 | checkConcept<GraphMap<_Graph, typename _Graph::Node, int>, IntNodeMap >(); |
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729 | } { // bool map test |
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730 | typedef typename _Graph::template NodeMap<bool> BoolNodeMap; |
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731 | checkConcept<GraphMap<_Graph, typename _Graph::Node, bool>, BoolNodeMap >(); |
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732 | } { // Type map test |
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733 | typedef typename _Graph::template NodeMap<Type> TypeNodeMap; |
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734 | checkConcept<GraphMap<_Graph, typename _Graph::Node, Type>, TypeNodeMap >(); |
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735 | } |
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736 | |
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737 | { // int map test |
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738 | typedef typename _Graph::template EdgeMap<int> IntEdgeMap; |
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739 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, int>, IntEdgeMap >(); |
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740 | } { // bool map test |
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741 | typedef typename _Graph::template EdgeMap<bool> BoolEdgeMap; |
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742 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, bool>, BoolEdgeMap >(); |
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743 | } { // Type map test |
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744 | typedef typename _Graph::template EdgeMap<Type> TypeEdgeMap; |
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745 | checkConcept<GraphMap<_Graph, typename _Graph::Edge, Type>, TypeEdgeMap >(); |
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746 | } |
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747 | } |
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748 | |
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749 | _Graph& graph; |
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750 | }; |
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751 | }; |
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752 | |
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753 | |
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754 | class ExtendableGraphComponent : virtual public BaseGraphComponent { |
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755 | public: |
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756 | |
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757 | typedef ExtendableGraphComponent Graph; |
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758 | |
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759 | typedef BaseGraphComponent::Node Node; |
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760 | typedef BaseGraphComponent::Edge Edge; |
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761 | |
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762 | Node addNode() { |
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763 | return INVALID; |
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764 | } |
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765 | |
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766 | Edge addEdge(const Node& from, const Node& to) { |
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767 | return INVALID; |
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768 | } |
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769 | |
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770 | template <typename _Graph> |
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771 | struct Constraints { |
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772 | void constraints() { |
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773 | checkConcept<BaseGraphComponent, _Graph >(); |
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774 | typename _Graph::Node node_a, node_b; |
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775 | node_a = graph.addNode(); |
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776 | typename _Graph::Edge edge; |
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777 | edge = graph.addEdge(node_a, node_b); |
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778 | } |
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779 | _Graph& graph; |
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780 | }; |
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781 | }; |
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782 | class ErasableGraphComponent : virtual public BaseGraphComponent { |
---|
783 | public: |
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784 | |
---|
785 | typedef ErasableGraphComponent Graph; |
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786 | |
---|
787 | typedef BaseGraphComponent::Node Node; |
---|
788 | typedef BaseGraphComponent::Edge Edge; |
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789 | |
---|
790 | void erase(const Node&) {} |
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791 | void erase(const Edge&) {} |
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792 | |
---|
793 | template <typename _Graph> |
---|
794 | struct Constraints { |
---|
795 | void constraints() { |
---|
796 | checkConcept<BaseGraphComponent, _Graph >(); |
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797 | typename _Graph::Node node; |
---|
798 | graph.erase(node); |
---|
799 | typename _Graph::Edge edge; |
---|
800 | graph.erase(edge); |
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801 | } |
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802 | |
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803 | _Graph& graph; |
---|
804 | }; |
---|
805 | }; |
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806 | |
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807 | class ClearableGraphComponent : virtual public BaseGraphComponent { |
---|
808 | public: |
---|
809 | |
---|
810 | typedef ClearableGraphComponent Graph; |
---|
811 | |
---|
812 | typedef BaseGraphComponent::Node Node; |
---|
813 | typedef BaseGraphComponent::Edge Edge; |
---|
814 | |
---|
815 | void clear() {} |
---|
816 | |
---|
817 | |
---|
818 | template <typename _Graph> |
---|
819 | struct ClearableGraphComponentConcept { |
---|
820 | void constraints() { |
---|
821 | checkConcept< BaseGraphComponent, _Graph >(); |
---|
822 | graph.clear(); |
---|
823 | } |
---|
824 | _Graph& graph; |
---|
825 | }; |
---|
826 | }; |
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827 | |
---|
828 | } |
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829 | |
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830 | } |
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831 | |
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832 | #endif |
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