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) 2003-2013 |
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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 <iostream> |
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20 | |
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21 | #include "test_tools.h" |
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22 | #include <lemon/smart_graph.h> |
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23 | #include <lemon/max_cardinality_search.h> |
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24 | #include <lemon/concepts/digraph.h> |
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25 | #include <lemon/concepts/maps.h> |
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26 | #include <lemon/concepts/heap.h> |
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27 | #include <lemon/lgf_reader.h> |
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28 | |
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29 | using namespace lemon; |
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30 | using namespace std; |
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31 | |
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32 | char test_lgf[] = |
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33 | "@nodes\n" |
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34 | "label\n" |
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35 | "0\n" |
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36 | "1\n" |
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37 | "2\n" |
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38 | "3\n" |
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39 | "@arcs\n" |
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40 | " label capacity\n" |
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41 | "0 1 0 2\n" |
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42 | "1 0 1 2\n" |
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43 | "2 1 2 1\n" |
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44 | "2 3 3 3\n" |
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45 | "3 2 4 3\n" |
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46 | "3 1 5 5\n" |
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47 | "@attributes\n" |
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48 | "s 0\n" |
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49 | "x 1\n" |
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50 | "y 2\n" |
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51 | "z 3\n"; |
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52 | |
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53 | void checkMaxCardSearchCompile() { |
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54 | |
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55 | typedef concepts::Digraph Digraph; |
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56 | typedef int Value; |
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57 | typedef Digraph::Node Node; |
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58 | typedef Digraph::Arc Arc; |
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59 | typedef concepts::ReadMap<Arc,Value> CapMap; |
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60 | typedef concepts::ReadWriteMap<Node,Value> CardMap; |
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61 | typedef concepts::ReadWriteMap<Node,bool> ProcMap; |
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62 | typedef Digraph::NodeMap<int> HeapCrossRef; |
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63 | |
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64 | Digraph g; |
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65 | Node n,s; |
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66 | CapMap cap; |
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67 | CardMap card; |
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68 | ProcMap proc; |
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69 | HeapCrossRef crossref(g); |
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70 | |
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71 | typedef MaxCardinalitySearch<Digraph,CapMap> |
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72 | ::SetCapacityMap<CapMap> |
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73 | ::SetCardinalityMap<CardMap> |
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74 | ::SetProcessedMap<ProcMap> |
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75 | ::SetStandardHeap<BinHeap<Value,HeapCrossRef> > |
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76 | ::Create MaxCardType; |
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77 | |
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78 | MaxCardType maxcard(g,cap); |
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79 | const MaxCardType& const_maxcard = maxcard; |
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80 | |
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81 | const MaxCardType::Heap& heap_const = const_maxcard.heap(); |
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82 | MaxCardType::Heap& heap = const_cast<MaxCardType::Heap&>(heap_const); |
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83 | maxcard.heap(heap,crossref); |
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84 | |
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85 | maxcard.capacityMap(cap).cardinalityMap(card).processedMap(proc); |
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86 | |
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87 | maxcard.init(); |
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88 | maxcard.addSource(s); |
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89 | n = maxcard.nextNode(); |
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90 | maxcard.processNextNode(); |
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91 | maxcard.start(); |
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92 | maxcard.run(s); |
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93 | maxcard.run(); |
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94 | } |
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95 | |
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96 | void checkWithIntMap( std::istringstream& input) |
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97 | { |
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98 | typedef SmartDigraph Digraph; |
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99 | typedef Digraph::Node Node; |
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100 | typedef Digraph::ArcMap<int> CapMap; |
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101 | |
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102 | Digraph g; |
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103 | Node s,x,y,z,a; |
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104 | CapMap cap(g); |
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105 | |
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106 | DigraphReader<Digraph>(g,input). |
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107 | arcMap("capacity", cap). |
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108 | node("s",s). |
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109 | node("x",x). |
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110 | node("y",y). |
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111 | node("z",z). |
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112 | run(); |
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113 | |
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114 | MaxCardinalitySearch<Digraph,CapMap> maxcard(g,cap); |
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115 | |
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116 | maxcard.init(); |
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117 | maxcard.addSource(s); |
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118 | maxcard.start(x); |
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119 | |
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120 | check(maxcard.processed(s) && !maxcard.processed(x) && |
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121 | !maxcard.processed(y), "Wrong processed()!"); |
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122 | |
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123 | a=maxcard.nextNode(); |
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124 | check(maxcard.processNextNode()==a, |
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125 | "Wrong nextNode() or processNextNode() return value!"); |
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126 | |
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127 | check(maxcard.processed(a), "Wrong processNextNode()!"); |
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128 | |
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129 | maxcard.start(); |
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130 | check(maxcard.cardinality(x)==2 && maxcard.cardinality(y)>=4, |
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131 | "Wrong cardinalities!"); |
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132 | } |
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133 | |
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134 | void checkWithConst1Map(std::istringstream &input) { |
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135 | typedef SmartDigraph Digraph; |
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136 | typedef Digraph::Node Node; |
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137 | |
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138 | Digraph g; |
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139 | Node s,x,y,z; |
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140 | |
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141 | DigraphReader<Digraph>(g,input). |
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142 | node("s",s). |
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143 | node("x",x). |
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144 | node("y",y). |
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145 | node("z",z). |
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146 | run(); |
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147 | |
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148 | MaxCardinalitySearch<Digraph> maxcard(g); |
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149 | maxcard.run(s); |
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150 | check(maxcard.cardinality(x)==1 && |
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151 | maxcard.cardinality(y)+maxcard.cardinality(z)==3, |
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152 | "Wrong cardinalities!"); |
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153 | } |
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154 | |
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155 | int main() { |
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156 | |
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157 | std::istringstream input1(test_lgf); |
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158 | checkWithIntMap(input1); |
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159 | |
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160 | std::istringstream input2(test_lgf); |
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161 | checkWithConst1Map(input2); |
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162 | } |
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