[209] | 1 | /* -*- mode: C++; indent-tabs-mode: nil; -*- |
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[170] | 2 | * |
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[209] | 3 | * This file is a part of LEMON, a generic C++ optimization library. |
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[170] | 4 | * |
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[761] | 5 | * Copyright (C) 2003-2011 |
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[170] | 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 <lemon/concepts/digraph.h> |
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| 20 | #include <lemon/smart_graph.h> |
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| 21 | #include <lemon/list_graph.h> |
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[228] | 22 | #include <lemon/lgf_reader.h> |
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[170] | 23 | #include <lemon/dijkstra.h> |
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| 24 | #include <lemon/path.h> |
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[286] | 25 | #include <lemon/bin_heap.h> |
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[170] | 26 | |
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[171] | 27 | #include "graph_test.h" |
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[170] | 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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[228] | 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 | "4\n" |
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| 40 | "@arcs\n" |
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| 41 | " label length\n" |
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| 42 | "0 1 0 1\n" |
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| 43 | "1 2 1 1\n" |
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| 44 | "2 3 2 1\n" |
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| 45 | "0 3 4 5\n" |
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| 46 | "0 3 5 10\n" |
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| 47 | "0 3 6 7\n" |
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| 48 | "4 2 7 1\n" |
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| 49 | "@attributes\n" |
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| 50 | "source 0\n" |
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| 51 | "target 3\n"; |
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| 52 | |
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[209] | 53 | void checkDijkstraCompile() |
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[170] | 54 | { |
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| 55 | typedef int VType; |
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| 56 | typedef concepts::Digraph Digraph; |
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| 57 | typedef concepts::ReadMap<Digraph::Arc,VType> LengthMap; |
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| 58 | typedef Dijkstra<Digraph, LengthMap> DType; |
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[286] | 59 | typedef Digraph::Node Node; |
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| 60 | typedef Digraph::Arc Arc; |
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[209] | 61 | |
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[170] | 62 | Digraph G; |
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[577] | 63 | Node s, t, n; |
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[286] | 64 | Arc e; |
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[170] | 65 | VType l; |
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[577] | 66 | int i; |
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[170] | 67 | bool b; |
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[796] | 68 | ignore_unused_variable_warning(l,i,b); |
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| 69 | |
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[170] | 70 | DType::DistMap d(G); |
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| 71 | DType::PredMap p(G); |
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| 72 | LengthMap length; |
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[286] | 73 | Path<Digraph> pp; |
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[577] | 74 | concepts::ReadMap<Node,bool> nm; |
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[170] | 75 | |
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[286] | 76 | { |
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| 77 | DType dijkstra_test(G,length); |
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[577] | 78 | const DType& const_dijkstra_test = dijkstra_test; |
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[170] | 79 | |
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[286] | 80 | dijkstra_test.run(s); |
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| 81 | dijkstra_test.run(s,t); |
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[170] | 82 | |
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[577] | 83 | dijkstra_test.init(); |
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| 84 | dijkstra_test.addSource(s); |
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| 85 | dijkstra_test.addSource(s, 1); |
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| 86 | n = dijkstra_test.processNextNode(); |
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| 87 | n = const_dijkstra_test.nextNode(); |
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| 88 | b = const_dijkstra_test.emptyQueue(); |
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| 89 | i = const_dijkstra_test.queueSize(); |
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[761] | 90 | |
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[577] | 91 | dijkstra_test.start(); |
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| 92 | dijkstra_test.start(t); |
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| 93 | dijkstra_test.start(nm); |
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| 94 | |
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| 95 | l = const_dijkstra_test.dist(t); |
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| 96 | e = const_dijkstra_test.predArc(t); |
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| 97 | s = const_dijkstra_test.predNode(t); |
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| 98 | b = const_dijkstra_test.reached(t); |
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| 99 | b = const_dijkstra_test.processed(t); |
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| 100 | d = const_dijkstra_test.distMap(); |
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| 101 | p = const_dijkstra_test.predMap(); |
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| 102 | pp = const_dijkstra_test.path(t); |
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| 103 | l = const_dijkstra_test.currentDist(t); |
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| 104 | } |
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| 105 | { |
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| 106 | DType |
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| 107 | ::SetPredMap<concepts::ReadWriteMap<Node,Arc> > |
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| 108 | ::SetDistMap<concepts::ReadWriteMap<Node,VType> > |
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| 109 | ::SetStandardProcessedMap |
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| 110 | ::SetProcessedMap<concepts::WriteMap<Node,bool> > |
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| 111 | ::SetOperationTraits<DijkstraDefaultOperationTraits<VType> > |
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| 112 | ::SetHeap<BinHeap<VType, concepts::ReadWriteMap<Node,int> > > |
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| 113 | ::SetStandardHeap<BinHeap<VType, concepts::ReadWriteMap<Node,int> > > |
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[761] | 114 | ::SetHeap<BinHeap<VType, concepts::ReadWriteMap<Node,int> >, |
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[577] | 115 | concepts::ReadWriteMap<Node,int> > |
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| 116 | ::Create dijkstra_test(G,length); |
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| 117 | |
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| 118 | LengthMap length_map; |
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| 119 | concepts::ReadWriteMap<Node,Arc> pred_map; |
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| 120 | concepts::ReadWriteMap<Node,VType> dist_map; |
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| 121 | concepts::WriteMap<Node,bool> processed_map; |
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| 122 | concepts::ReadWriteMap<Node,int> heap_cross_ref; |
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| 123 | BinHeap<VType, concepts::ReadWriteMap<Node,int> > heap(heap_cross_ref); |
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[761] | 124 | |
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[577] | 125 | dijkstra_test |
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| 126 | .lengthMap(length_map) |
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| 127 | .predMap(pred_map) |
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| 128 | .distMap(dist_map) |
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| 129 | .processedMap(processed_map) |
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| 130 | .heap(heap, heap_cross_ref); |
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| 131 | |
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| 132 | dijkstra_test.run(s); |
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| 133 | dijkstra_test.run(s,t); |
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| 134 | |
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| 135 | dijkstra_test.addSource(s); |
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| 136 | dijkstra_test.addSource(s, 1); |
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| 137 | n = dijkstra_test.processNextNode(); |
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| 138 | n = dijkstra_test.nextNode(); |
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| 139 | b = dijkstra_test.emptyQueue(); |
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| 140 | i = dijkstra_test.queueSize(); |
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[761] | 141 | |
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[577] | 142 | dijkstra_test.start(); |
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| 143 | dijkstra_test.start(t); |
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| 144 | dijkstra_test.start(nm); |
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| 145 | |
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[286] | 146 | l = dijkstra_test.dist(t); |
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| 147 | e = dijkstra_test.predArc(t); |
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| 148 | s = dijkstra_test.predNode(t); |
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| 149 | b = dijkstra_test.reached(t); |
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[577] | 150 | b = dijkstra_test.processed(t); |
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[286] | 151 | pp = dijkstra_test.path(t); |
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[577] | 152 | l = dijkstra_test.currentDist(t); |
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[286] | 153 | } |
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| 154 | |
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[170] | 155 | } |
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| 156 | |
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[209] | 157 | void checkDijkstraFunctionCompile() |
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[170] | 158 | { |
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| 159 | typedef int VType; |
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| 160 | typedef concepts::Digraph Digraph; |
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| 161 | typedef Digraph::Arc Arc; |
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| 162 | typedef Digraph::Node Node; |
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| 163 | typedef concepts::ReadMap<Digraph::Arc,VType> LengthMap; |
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[209] | 164 | |
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[170] | 165 | Digraph g; |
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[278] | 166 | bool b; |
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[796] | 167 | ignore_unused_variable_warning(b); |
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| 168 | |
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[278] | 169 | dijkstra(g,LengthMap()).run(Node()); |
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| 170 | b=dijkstra(g,LengthMap()).run(Node(),Node()); |
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[170] | 171 | dijkstra(g,LengthMap()) |
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[278] | 172 | .predMap(concepts::ReadWriteMap<Node,Arc>()) |
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| 173 | .distMap(concepts::ReadWriteMap<Node,VType>()) |
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| 174 | .processedMap(concepts::WriteMap<Node,bool>()) |
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[170] | 175 | .run(Node()); |
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[278] | 176 | b=dijkstra(g,LengthMap()) |
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| 177 | .predMap(concepts::ReadWriteMap<Node,Arc>()) |
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| 178 | .distMap(concepts::ReadWriteMap<Node,VType>()) |
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| 179 | .processedMap(concepts::WriteMap<Node,bool>()) |
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| 180 | .path(concepts::Path<Digraph>()) |
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| 181 | .dist(VType()) |
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| 182 | .run(Node(),Node()); |
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[170] | 183 | } |
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| 184 | |
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| 185 | template <class Digraph> |
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[209] | 186 | void checkDijkstra() { |
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[170] | 187 | TEMPLATE_DIGRAPH_TYPEDEFS(Digraph); |
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| 188 | typedef typename Digraph::template ArcMap<int> LengthMap; |
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| 189 | |
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| 190 | Digraph G; |
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| 191 | Node s, t; |
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| 192 | LengthMap length(G); |
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[209] | 193 | |
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[228] | 194 | std::istringstream input(test_lgf); |
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[293] | 195 | digraphReader(G, input). |
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[228] | 196 | arcMap("length", length). |
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| 197 | node("source", s). |
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| 198 | node("target", t). |
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| 199 | run(); |
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[209] | 200 | |
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| 201 | Dijkstra<Digraph, LengthMap> |
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| 202 | dijkstra_test(G, length); |
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[170] | 203 | dijkstra_test.run(s); |
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[209] | 204 | |
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[228] | 205 | check(dijkstra_test.dist(t)==3,"Dijkstra found a wrong path."); |
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[170] | 206 | |
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| 207 | Path<Digraph> p = dijkstra_test.path(t); |
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[278] | 208 | check(p.length()==3,"path() found a wrong path."); |
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[170] | 209 | check(checkPath(G, p),"path() found a wrong path."); |
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| 210 | check(pathSource(G, p) == s,"path() found a wrong path."); |
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| 211 | check(pathTarget(G, p) == t,"path() found a wrong path."); |
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[209] | 212 | |
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[170] | 213 | for(ArcIt e(G); e!=INVALID; ++e) { |
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| 214 | Node u=G.source(e); |
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| 215 | Node v=G.target(e); |
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[210] | 216 | check( !dijkstra_test.reached(u) || |
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| 217 | (dijkstra_test.dist(v) - dijkstra_test.dist(u) <= length[e]), |
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[278] | 218 | "Wrong output. dist(target)-dist(source)-arc_length=" << |
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[210] | 219 | dijkstra_test.dist(v) - dijkstra_test.dist(u) - length[e]); |
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[170] | 220 | } |
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| 221 | |
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[228] | 222 | for(NodeIt v(G); v!=INVALID; ++v) { |
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| 223 | if (dijkstra_test.reached(v)) { |
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| 224 | check(v==s || dijkstra_test.predArc(v)!=INVALID, "Wrong tree."); |
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| 225 | if (dijkstra_test.predArc(v)!=INVALID ) { |
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| 226 | Arc e=dijkstra_test.predArc(v); |
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| 227 | Node u=G.source(e); |
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| 228 | check(u==dijkstra_test.predNode(v),"Wrong tree."); |
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| 229 | check(dijkstra_test.dist(v) - dijkstra_test.dist(u) == length[e], |
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| 230 | "Wrong distance! Difference: " << |
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| 231 | std::abs(dijkstra_test.dist(v)-dijkstra_test.dist(u)-length[e])); |
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| 232 | } |
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[170] | 233 | } |
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| 234 | } |
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[209] | 235 | |
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[170] | 236 | { |
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| 237 | NullMap<Node,Arc> myPredMap; |
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| 238 | dijkstra(G,length).predMap(myPredMap).run(s); |
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| 239 | } |
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| 240 | } |
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| 241 | |
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| 242 | int main() { |
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| 243 | checkDijkstra<ListDigraph>(); |
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| 244 | checkDijkstra<SmartDigraph>(); |
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| 245 | return 0; |
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| 246 | } |
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