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) 2003-2008 |
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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 | #include <cstdlib> |
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20 | #include <ctime> |
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21 | |
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22 | #include <lemon/random.h> |
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23 | #include <lemon/graph_utils.h> |
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24 | #include <lemon/list_graph.h> |
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25 | #include <lemon/smart_graph.h> |
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26 | |
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27 | #include "graph_test.h" |
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28 | #include "test_tools.h" |
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29 | |
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30 | using namespace lemon; |
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31 | |
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32 | template <typename Digraph> |
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33 | void checkFindArcs() { |
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34 | TEMPLATE_DIGRAPH_TYPEDEFS(Digraph); |
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35 | |
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36 | { |
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37 | Digraph digraph; |
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38 | for (int i = 0; i < 10; ++i) { |
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39 | digraph.addNode(); |
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40 | } |
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41 | DescriptorMap<Digraph, Node> nodes(digraph); |
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42 | typename DescriptorMap<Digraph, Node>::InverseMap invNodes(nodes); |
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43 | for (int i = 0; i < 100; ++i) { |
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44 | int src = rnd[invNodes.size()]; |
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45 | int trg = rnd[invNodes.size()]; |
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46 | digraph.addArc(invNodes[src], invNodes[trg]); |
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47 | } |
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48 | typename Digraph::template ArcMap<bool> found(digraph, false); |
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49 | DescriptorMap<Digraph, Arc> arcs(digraph); |
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50 | for (NodeIt src(digraph); src != INVALID; ++src) { |
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51 | for (NodeIt trg(digraph); trg != INVALID; ++trg) { |
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52 | for (ConArcIt<Digraph> con(digraph, src, trg); con != INVALID; ++con) { |
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53 | check(digraph.source(con) == src, "Wrong source."); |
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54 | check(digraph.target(con) == trg, "Wrong target."); |
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55 | check(found[con] == false, "The arc found already."); |
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56 | found[con] = true; |
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57 | } |
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58 | } |
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59 | } |
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60 | for (ArcIt it(digraph); it != INVALID; ++it) { |
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61 | check(found[it] == true, "The arc is not found."); |
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62 | } |
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63 | } |
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64 | |
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65 | { |
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66 | int num = 5; |
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67 | Digraph fg; |
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68 | std::vector<Node> nodes; |
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69 | for (int i = 0; i < num; ++i) { |
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70 | nodes.push_back(fg.addNode()); |
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71 | } |
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72 | for (int i = 0; i < num * num; ++i) { |
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73 | fg.addArc(nodes[i / num], nodes[i % num]); |
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74 | } |
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75 | check(countNodes(fg) == num, "Wrong node number."); |
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76 | check(countArcs(fg) == num*num, "Wrong arc number."); |
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77 | for (NodeIt src(fg); src != INVALID; ++src) { |
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78 | for (NodeIt trg(fg); trg != INVALID; ++trg) { |
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79 | ConArcIt<Digraph> con(fg, src, trg); |
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80 | check(con != INVALID, "There is no connecting arc."); |
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81 | check(fg.source(con) == src, "Wrong source."); |
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82 | check(fg.target(con) == trg, "Wrong target."); |
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83 | check(++con == INVALID, "There is more connecting arc."); |
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84 | } |
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85 | } |
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86 | ArcLookUp<Digraph> al1(fg); |
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87 | DynArcLookUp<Digraph> al2(fg); |
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88 | AllArcLookUp<Digraph> al3(fg); |
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89 | for (NodeIt src(fg); src != INVALID; ++src) { |
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90 | for (NodeIt trg(fg); trg != INVALID; ++trg) { |
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91 | Arc con1 = al1(src, trg); |
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92 | Arc con2 = al2(src, trg); |
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93 | Arc con3 = al3(src, trg); |
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94 | Arc con4 = findArc(fg, src, trg); |
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95 | check(con1 == con2 && con2 == con3 && con3 == con4, |
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96 | "Different results.") |
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97 | check(con1 != INVALID, "There is no connecting arc."); |
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98 | check(fg.source(con1) == src, "Wrong source."); |
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99 | check(fg.target(con1) == trg, "Wrong target."); |
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100 | check(al3(src, trg, con3) == INVALID, |
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101 | "There is more connecting arc."); |
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102 | check(findArc(fg, src, trg, con4) == INVALID, |
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103 | "There is more connecting arc."); |
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104 | } |
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105 | } |
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106 | } |
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107 | } |
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108 | |
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109 | template <typename Graph> |
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110 | void checkFindEdges() { |
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111 | TEMPLATE_GRAPH_TYPEDEFS(Graph); |
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112 | Graph graph; |
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113 | for (int i = 0; i < 10; ++i) { |
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114 | graph.addNode(); |
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115 | } |
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116 | DescriptorMap<Graph, Node> nodes(graph); |
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117 | typename DescriptorMap<Graph, Node>::InverseMap invNodes(nodes); |
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118 | for (int i = 0; i < 100; ++i) { |
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119 | int src = rnd[invNodes.size()]; |
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120 | int trg = rnd[invNodes.size()]; |
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121 | graph.addEdge(invNodes[src], invNodes[trg]); |
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122 | } |
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123 | typename Graph::template EdgeMap<int> found(graph, 0); |
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124 | DescriptorMap<Graph, Edge> edges(graph); |
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125 | for (NodeIt src(graph); src != INVALID; ++src) { |
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126 | for (NodeIt trg(graph); trg != INVALID; ++trg) { |
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127 | for (ConEdgeIt<Graph> con(graph, src, trg); con != INVALID; ++con) { |
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128 | check( (graph.u(con) == src && graph.v(con) == trg) || |
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129 | (graph.v(con) == src && graph.u(con) == trg), |
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130 | "Wrong end nodes."); |
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131 | ++found[con]; |
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132 | check(found[con] <= 2, "The edge found more than twice."); |
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133 | } |
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134 | } |
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135 | } |
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136 | for (EdgeIt it(graph); it != INVALID; ++it) { |
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137 | check( (graph.u(it) != graph.v(it) && found[it] == 2) || |
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138 | (graph.u(it) == graph.v(it) && found[it] == 1), |
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139 | "The edge is not found correctly."); |
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140 | } |
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141 | } |
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142 | |
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143 | template <class Digraph> |
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144 | void checkDeg() |
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145 | { |
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146 | TEMPLATE_DIGRAPH_TYPEDEFS(Digraph); |
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147 | |
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148 | const int nodeNum = 10; |
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149 | const int arcNum = 100; |
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150 | Digraph digraph; |
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151 | InDegMap<Digraph> inDeg(digraph); |
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152 | OutDegMap<Digraph> outDeg(digraph); |
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153 | std::vector<Node> nodes(nodeNum); |
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154 | for (int i = 0; i < nodeNum; ++i) { |
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155 | nodes[i] = digraph.addNode(); |
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156 | } |
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157 | std::vector<Arc> arcs(arcNum); |
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158 | for (int i = 0; i < arcNum; ++i) { |
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159 | arcs[i] = digraph.addArc(nodes[rnd[nodeNum]], nodes[rnd[nodeNum]]); |
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160 | } |
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161 | for (int i = 0; i < nodeNum; ++i) { |
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162 | check(inDeg[nodes[i]] == countInArcs(digraph, nodes[i]), |
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163 | "Wrong in degree map"); |
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164 | } |
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165 | for (int i = 0; i < nodeNum; ++i) { |
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166 | check(outDeg[nodes[i]] == countOutArcs(digraph, nodes[i]), |
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167 | "Wrong out degree map"); |
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168 | } |
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169 | } |
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170 | |
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171 | template <class Digraph> |
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172 | void checkSnapDeg() |
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173 | { |
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174 | TEMPLATE_DIGRAPH_TYPEDEFS(Digraph); |
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175 | |
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176 | Digraph g; |
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177 | Node n1=g.addNode(); |
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178 | Node n2=g.addNode(); |
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179 | |
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180 | InDegMap<Digraph> ind(g); |
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181 | |
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182 | g.addArc(n1,n2); |
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183 | |
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184 | typename Digraph::Snapshot snap(g); |
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185 | |
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186 | OutDegMap<Digraph> outd(g); |
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187 | |
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188 | check(ind[n1]==0 && ind[n2]==1, "Wrong InDegMap value."); |
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189 | check(outd[n1]==1 && outd[n2]==0, "Wrong OutDegMap value."); |
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190 | |
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191 | g.addArc(n1,n2); |
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192 | g.addArc(n2,n1); |
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193 | |
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194 | check(ind[n1]==1 && ind[n2]==2, "Wrong InDegMap value."); |
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195 | check(outd[n1]==2 && outd[n2]==1, "Wrong OutDegMap value."); |
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196 | |
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197 | snap.restore(); |
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198 | |
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199 | check(ind[n1]==0 && ind[n2]==1, "Wrong InDegMap value."); |
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200 | check(outd[n1]==1 && outd[n2]==0, "Wrong OutDegMap value."); |
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201 | } |
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202 | |
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203 | int main() { |
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204 | // Checking ConArcIt, ConEdgeIt, ArcLookUp, AllArcLookUp, and DynArcLookUp |
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205 | checkFindArcs<ListDigraph>(); |
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206 | checkFindArcs<SmartDigraph>(); |
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207 | checkFindEdges<ListGraph>(); |
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208 | checkFindEdges<SmartGraph>(); |
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209 | |
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210 | // Checking In/OutDegMap (and Snapshot feature) |
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211 | checkDeg<ListDigraph>(); |
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212 | checkDeg<SmartDigraph>(); |
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213 | checkSnapDeg<ListDigraph>(); |
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214 | checkSnapDeg<SmartDigraph>(); |
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215 | |
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216 | return 0; |
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217 | } |
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