| 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 | #include <fstream> | 
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| 21 | #include <limits> | 
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| 22 |  | 
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| 23 | #include <lemon/list_graph.h> | 
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| 24 | #include <lemon/lgf_reader.h> | 
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| 25 |  | 
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| 26 | #include <lemon/network_simplex.h> | 
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| 27 | #include <lemon/capacity_scaling.h> | 
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| 28 | #include <lemon/cost_scaling.h> | 
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| 29 | #include <lemon/cycle_canceling.h> | 
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| 30 |  | 
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| 31 | #include <lemon/concepts/digraph.h> | 
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| 32 | #include <lemon/concepts/heap.h> | 
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| 33 | #include <lemon/concept_check.h> | 
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| 34 |  | 
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| 35 | #include "test_tools.h" | 
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| 36 |  | 
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| 37 | using namespace lemon; | 
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| 38 |  | 
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| 39 | // Test networks | 
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| 40 | char test_lgf[] = | 
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| 41 | "@nodes\n" | 
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| 42 | "label  sup1 sup2 sup3 sup4 sup5 sup6\n" | 
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| 43 | "    1    20   27    0   30   20   30\n" | 
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| 44 | "    2    -4    0    0    0   -8   -3\n" | 
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| 45 | "    3     0    0    0    0    0    0\n" | 
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| 46 | "    4     0    0    0    0    0    0\n" | 
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| 47 | "    5     9    0    0    0    6   11\n" | 
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| 48 | "    6    -6    0    0    0   -5   -6\n" | 
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| 49 | "    7     0    0    0    0    0    0\n" | 
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| 50 | "    8     0    0    0    0    0    3\n" | 
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| 51 | "    9     3    0    0    0    0    0\n" | 
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| 52 | "   10    -2    0    0    0   -7   -2\n" | 
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| 53 | "   11     0    0    0    0  -10    0\n" | 
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| 54 | "   12   -20  -27    0  -30  -30  -20\n" | 
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| 55 | "\n" | 
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| 56 | "@arcs\n" | 
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| 57 | "       cost  cap low1 low2 low3\n" | 
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| 58 | " 1  2    70   11    0    8    8\n" | 
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| 59 | " 1  3   150    3    0    1    0\n" | 
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| 60 | " 1  4    80   15    0    2    2\n" | 
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| 61 | " 2  8    80   12    0    0    0\n" | 
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| 62 | " 3  5   140    5    0    3    1\n" | 
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| 63 | " 4  6    60   10    0    1    0\n" | 
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| 64 | " 4  7    80    2    0    0    0\n" | 
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| 65 | " 4  8   110    3    0    0    0\n" | 
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| 66 | " 5  7    60   14    0    0    0\n" | 
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| 67 | " 5 11   120   12    0    0    0\n" | 
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| 68 | " 6  3     0    3    0    0    0\n" | 
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| 69 | " 6  9   140    4    0    0    0\n" | 
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| 70 | " 6 10    90    8    0    0    0\n" | 
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| 71 | " 7  1    30    5    0    0   -5\n" | 
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| 72 | " 8 12    60   16    0    4    3\n" | 
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| 73 | " 9 12    50    6    0    0    0\n" | 
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| 74 | "10 12    70   13    0    5    2\n" | 
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| 75 | "10  2   100    7    0    0    0\n" | 
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| 76 | "10  7    60   10    0    0   -3\n" | 
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| 77 | "11 10    20   14    0    6  -20\n" | 
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| 78 | "12 11    30   10    0    0  -10\n" | 
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| 79 | "\n" | 
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| 80 | "@attributes\n" | 
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| 81 | "source 1\n" | 
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| 82 | "target 12\n"; | 
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| 83 |  | 
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| 84 | char test_neg1_lgf[] = | 
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| 85 | "@nodes\n" | 
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| 86 | "label   sup\n" | 
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| 87 | "    1   100\n" | 
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| 88 | "    2     0\n" | 
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| 89 | "    3     0\n" | 
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| 90 | "    4  -100\n" | 
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| 91 | "    5     0\n" | 
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| 92 | "    6     0\n" | 
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| 93 | "    7     0\n" | 
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| 94 | "@arcs\n" | 
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| 95 | "      cost   low1   low2\n" | 
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| 96 | "1 2    100      0      0\n" | 
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| 97 | "1 3     30      0      0\n" | 
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| 98 | "2 4     20      0      0\n" | 
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| 99 | "3 4     80      0      0\n" | 
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| 100 | "3 2     50      0      0\n" | 
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| 101 | "5 3     10      0      0\n" | 
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| 102 | "5 6     80      0   1000\n" | 
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| 103 | "6 7     30      0  -1000\n" | 
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| 104 | "7 5   -120      0      0\n"; | 
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| 105 |  | 
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| 106 | char test_neg2_lgf[] = | 
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| 107 | "@nodes\n" | 
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| 108 | "label   sup\n" | 
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| 109 | "    1   100\n" | 
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| 110 | "    2  -300\n" | 
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| 111 | "@arcs\n" | 
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| 112 | "      cost\n" | 
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| 113 | "1 2     -1\n"; | 
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| 114 |  | 
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| 115 |  | 
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| 116 | // Test data | 
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| 117 | typedef ListDigraph Digraph; | 
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| 118 | DIGRAPH_TYPEDEFS(ListDigraph); | 
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| 119 |  | 
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| 120 | Digraph gr; | 
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| 121 | Digraph::ArcMap<int> c(gr), l1(gr), l2(gr), l3(gr), u(gr); | 
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| 122 | Digraph::NodeMap<int> s1(gr), s2(gr), s3(gr), s4(gr), s5(gr), s6(gr); | 
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| 123 | ConstMap<Arc, int> cc(1), cu(std::numeric_limits<int>::max()); | 
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| 124 | Node v, w; | 
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| 125 |  | 
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| 126 | Digraph neg1_gr; | 
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| 127 | Digraph::ArcMap<int> neg1_c(neg1_gr), neg1_l1(neg1_gr), neg1_l2(neg1_gr); | 
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| 128 | ConstMap<Arc, int> neg1_u1(std::numeric_limits<int>::max()), neg1_u2(5000); | 
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| 129 | Digraph::NodeMap<int> neg1_s(neg1_gr); | 
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| 130 |  | 
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| 131 | Digraph neg2_gr; | 
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| 132 | Digraph::ArcMap<int> neg2_c(neg2_gr); | 
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| 133 | ConstMap<Arc, int> neg2_l(0), neg2_u(1000); | 
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| 134 | Digraph::NodeMap<int> neg2_s(neg2_gr); | 
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| 135 |  | 
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| 136 |  | 
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| 137 | enum SupplyType { | 
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| 138 | EQ, | 
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| 139 | GEQ, | 
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| 140 | LEQ | 
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| 141 | }; | 
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| 142 |  | 
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| 143 |  | 
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| 144 | // Check the interface of an MCF algorithm | 
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| 145 | template <typename GR, typename Value, typename Cost> | 
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| 146 | class McfClassConcept | 
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| 147 | { | 
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| 148 | public: | 
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| 149 |  | 
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| 150 | template <typename MCF> | 
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| 151 | struct Constraints { | 
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| 152 | void constraints() { | 
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| 153 | checkConcept<concepts::Digraph, GR>(); | 
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| 154 |  | 
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| 155 | const Constraints& me = *this; | 
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| 156 |  | 
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| 157 | MCF mcf(me.g); | 
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| 158 | const MCF& const_mcf = mcf; | 
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| 159 |  | 
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| 160 | b = mcf.reset().resetParams() | 
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| 161 | .lowerMap(me.lower) | 
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| 162 | .upperMap(me.upper) | 
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| 163 | .costMap(me.cost) | 
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| 164 | .supplyMap(me.sup) | 
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| 165 | .stSupply(me.n, me.n, me.k) | 
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| 166 | .run(); | 
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| 167 |  | 
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| 168 | c = const_mcf.totalCost(); | 
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| 169 | x = const_mcf.template totalCost<double>(); | 
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| 170 | v = const_mcf.flow(me.a); | 
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| 171 | c = const_mcf.potential(me.n); | 
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| 172 | const_mcf.flowMap(fm); | 
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| 173 | const_mcf.potentialMap(pm); | 
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| 174 | } | 
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| 175 |  | 
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| 176 | typedef typename GR::Node Node; | 
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| 177 | typedef typename GR::Arc Arc; | 
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| 178 | typedef concepts::ReadMap<Node, Value> NM; | 
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| 179 | typedef concepts::ReadMap<Arc, Value> VAM; | 
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| 180 | typedef concepts::ReadMap<Arc, Cost> CAM; | 
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| 181 | typedef concepts::WriteMap<Arc, Value> FlowMap; | 
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| 182 | typedef concepts::WriteMap<Node, Cost> PotMap; | 
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| 183 |  | 
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| 184 | GR g; | 
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| 185 | VAM lower; | 
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| 186 | VAM upper; | 
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| 187 | CAM cost; | 
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| 188 | NM sup; | 
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| 189 | Node n; | 
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| 190 | Arc a; | 
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| 191 | Value k; | 
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| 192 |  | 
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| 193 | FlowMap fm; | 
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| 194 | PotMap pm; | 
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| 195 | bool b; | 
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| 196 | double x; | 
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| 197 | typename MCF::Value v; | 
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| 198 | typename MCF::Cost c; | 
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| 199 | }; | 
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| 200 |  | 
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| 201 | }; | 
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| 202 |  | 
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| 203 |  | 
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| 204 | // Check the feasibility of the given flow (primal soluiton) | 
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| 205 | template < typename GR, typename LM, typename UM, | 
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| 206 | typename SM, typename FM > | 
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| 207 | bool checkFlow( const GR& gr, const LM& lower, const UM& upper, | 
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| 208 | const SM& supply, const FM& flow, | 
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| 209 | SupplyType type = EQ ) | 
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| 210 | { | 
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| 211 | TEMPLATE_DIGRAPH_TYPEDEFS(GR); | 
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| 212 |  | 
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| 213 | for (ArcIt e(gr); e != INVALID; ++e) { | 
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| 214 | if (flow[e] < lower[e] || flow[e] > upper[e]) return false; | 
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| 215 | } | 
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| 216 |  | 
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| 217 | for (NodeIt n(gr); n != INVALID; ++n) { | 
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| 218 | typename SM::Value sum = 0; | 
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| 219 | for (OutArcIt e(gr, n); e != INVALID; ++e) | 
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| 220 | sum += flow[e]; | 
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| 221 | for (InArcIt e(gr, n); e != INVALID; ++e) | 
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| 222 | sum -= flow[e]; | 
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| 223 | bool b = (type ==  EQ && sum == supply[n]) || | 
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| 224 | (type == GEQ && sum >= supply[n]) || | 
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| 225 | (type == LEQ && sum <= supply[n]); | 
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| 226 | if (!b) return false; | 
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| 227 | } | 
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| 228 |  | 
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| 229 | return true; | 
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| 230 | } | 
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| 231 |  | 
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| 232 | // Check the feasibility of the given potentials (dual soluiton) | 
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| 233 | // using the "Complementary Slackness" optimality condition | 
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| 234 | template < typename GR, typename LM, typename UM, | 
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| 235 | typename CM, typename SM, typename FM, typename PM > | 
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| 236 | bool checkPotential( const GR& gr, const LM& lower, const UM& upper, | 
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| 237 | const CM& cost, const SM& supply, const FM& flow, | 
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| 238 | const PM& pi, SupplyType type ) | 
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| 239 | { | 
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| 240 | TEMPLATE_DIGRAPH_TYPEDEFS(GR); | 
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| 241 |  | 
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| 242 | bool opt = true; | 
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| 243 | for (ArcIt e(gr); opt && e != INVALID; ++e) { | 
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| 244 | typename CM::Value red_cost = | 
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| 245 | cost[e] + pi[gr.source(e)] - pi[gr.target(e)]; | 
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| 246 | opt = red_cost == 0 || | 
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| 247 | (red_cost > 0 && flow[e] == lower[e]) || | 
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| 248 | (red_cost < 0 && flow[e] == upper[e]); | 
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| 249 | } | 
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| 250 |  | 
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| 251 | for (NodeIt n(gr); opt && n != INVALID; ++n) { | 
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| 252 | typename SM::Value sum = 0; | 
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| 253 | for (OutArcIt e(gr, n); e != INVALID; ++e) | 
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| 254 | sum += flow[e]; | 
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| 255 | for (InArcIt e(gr, n); e != INVALID; ++e) | 
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| 256 | sum -= flow[e]; | 
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| 257 | if (type != LEQ) { | 
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| 258 | opt = (pi[n] <= 0) && (sum == supply[n] || pi[n] == 0); | 
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| 259 | } else { | 
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| 260 | opt = (pi[n] >= 0) && (sum == supply[n] || pi[n] == 0); | 
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| 261 | } | 
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| 262 | } | 
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| 263 |  | 
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| 264 | return opt; | 
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| 265 | } | 
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| 266 |  | 
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| 267 | // Check whether the dual cost is equal to the primal cost | 
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| 268 | template < typename GR, typename LM, typename UM, | 
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| 269 | typename CM, typename SM, typename PM > | 
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| 270 | bool checkDualCost( const GR& gr, const LM& lower, const UM& upper, | 
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| 271 | const CM& cost, const SM& supply, const PM& pi, | 
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| 272 | typename CM::Value total ) | 
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| 273 | { | 
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| 274 | TEMPLATE_DIGRAPH_TYPEDEFS(GR); | 
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| 275 |  | 
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| 276 | typename CM::Value dual_cost = 0; | 
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| 277 | SM red_supply(gr); | 
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| 278 | for (NodeIt n(gr); n != INVALID; ++n) { | 
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| 279 | red_supply[n] = supply[n]; | 
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| 280 | } | 
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| 281 | for (ArcIt a(gr); a != INVALID; ++a) { | 
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| 282 | if (lower[a] != 0) { | 
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| 283 | dual_cost += lower[a] * cost[a]; | 
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| 284 | red_supply[gr.source(a)] -= lower[a]; | 
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| 285 | red_supply[gr.target(a)] += lower[a]; | 
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| 286 | } | 
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| 287 | } | 
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| 288 |  | 
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| 289 | for (NodeIt n(gr); n != INVALID; ++n) { | 
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| 290 | dual_cost -= red_supply[n] * pi[n]; | 
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| 291 | } | 
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| 292 | for (ArcIt a(gr); a != INVALID; ++a) { | 
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| 293 | typename CM::Value red_cost = | 
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| 294 | cost[a] + pi[gr.source(a)] - pi[gr.target(a)]; | 
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| 295 | dual_cost -= (upper[a] - lower[a]) * std::max(-red_cost, 0); | 
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| 296 | } | 
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| 297 |  | 
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| 298 | return dual_cost == total; | 
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| 299 | } | 
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| 300 |  | 
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| 301 | // Run a minimum cost flow algorithm and check the results | 
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| 302 | template < typename MCF, typename GR, | 
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| 303 | typename LM, typename UM, | 
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| 304 | typename CM, typename SM, | 
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| 305 | typename PT > | 
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| 306 | void checkMcf( const MCF& mcf, PT mcf_result, | 
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| 307 | const GR& gr, const LM& lower, const UM& upper, | 
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| 308 | const CM& cost, const SM& supply, | 
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| 309 | PT result, bool optimal, typename CM::Value total, | 
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| 310 | const std::string &test_id = "", | 
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| 311 | SupplyType type = EQ ) | 
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| 312 | { | 
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| 313 | check(mcf_result == result, "Wrong result " + test_id); | 
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| 314 | if (optimal) { | 
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| 315 | typename GR::template ArcMap<typename SM::Value> flow(gr); | 
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| 316 | typename GR::template NodeMap<typename CM::Value> pi(gr); | 
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| 317 | mcf.flowMap(flow); | 
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| 318 | mcf.potentialMap(pi); | 
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| 319 | check(checkFlow(gr, lower, upper, supply, flow, type), | 
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| 320 | "The flow is not feasible " + test_id); | 
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| 321 | check(mcf.totalCost() == total, "The flow is not optimal " + test_id); | 
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| 322 | check(checkPotential(gr, lower, upper, cost, supply, flow, pi, type), | 
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| 323 | "Wrong potentials " + test_id); | 
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| 324 | check(checkDualCost(gr, lower, upper, cost, supply, pi, total), | 
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| 325 | "Wrong dual cost " + test_id); | 
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| 326 | } | 
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| 327 | } | 
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| 328 |  | 
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| 329 | template < typename MCF, typename Param > | 
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| 330 | void runMcfGeqTests( Param param, | 
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| 331 | const std::string &test_str = "", | 
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| 332 | bool full_neg_cost_support = false ) | 
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| 333 | { | 
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| 334 | MCF mcf1(gr), mcf2(neg1_gr), mcf3(neg2_gr); | 
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| 335 |  | 
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| 336 | // Basic tests | 
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| 337 | mcf1.upperMap(u).costMap(c).supplyMap(s1); | 
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| 338 | checkMcf(mcf1, mcf1.run(param), gr, l1, u, c, s1, | 
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| 339 | mcf1.OPTIMAL, true,     5240, test_str + "-1"); | 
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| 340 | mcf1.stSupply(v, w, 27); | 
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| 341 | checkMcf(mcf1, mcf1.run(param), gr, l1, u, c, s2, | 
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| 342 | mcf1.OPTIMAL, true,     7620, test_str + "-2"); | 
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| 343 | mcf1.lowerMap(l2).supplyMap(s1); | 
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| 344 | checkMcf(mcf1, mcf1.run(param), gr, l2, u, c, s1, | 
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| 345 | mcf1.OPTIMAL, true,     5970, test_str + "-3"); | 
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| 346 | mcf1.stSupply(v, w, 27); | 
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| 347 | checkMcf(mcf1, mcf1.run(param), gr, l2, u, c, s2, | 
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| 348 | mcf1.OPTIMAL, true,     8010, test_str + "-4"); | 
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| 349 | mcf1.resetParams().supplyMap(s1); | 
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| 350 | checkMcf(mcf1, mcf1.run(param), gr, l1, cu, cc, s1, | 
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| 351 | mcf1.OPTIMAL, true,       74, test_str + "-5"); | 
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| 352 | mcf1.lowerMap(l2).stSupply(v, w, 27); | 
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| 353 | checkMcf(mcf1, mcf1.run(param), gr, l2, cu, cc, s2, | 
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| 354 | mcf1.OPTIMAL, true,       94, test_str + "-6"); | 
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| 355 | mcf1.reset(); | 
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| 356 | checkMcf(mcf1, mcf1.run(param), gr, l1, cu, cc, s3, | 
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| 357 | mcf1.OPTIMAL, true,        0, test_str + "-7"); | 
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| 358 | mcf1.lowerMap(l2).upperMap(u); | 
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| 359 | checkMcf(mcf1, mcf1.run(param), gr, l2, u, cc, s3, | 
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| 360 | mcf1.INFEASIBLE, false,    0, test_str + "-8"); | 
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| 361 | mcf1.lowerMap(l3).upperMap(u).costMap(c).supplyMap(s4); | 
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| 362 | checkMcf(mcf1, mcf1.run(param), gr, l3, u, c, s4, | 
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| 363 | mcf1.OPTIMAL, true,     6360, test_str + "-9"); | 
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| 364 |  | 
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| 365 | // Tests for the GEQ form | 
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| 366 | mcf1.resetParams().upperMap(u).costMap(c).supplyMap(s5); | 
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| 367 | checkMcf(mcf1, mcf1.run(param), gr, l1, u, c, s5, | 
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| 368 | mcf1.OPTIMAL, true,     3530, test_str + "-10", GEQ); | 
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| 369 | mcf1.lowerMap(l2); | 
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| 370 | checkMcf(mcf1, mcf1.run(param), gr, l2, u, c, s5, | 
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| 371 | mcf1.OPTIMAL, true,     4540, test_str + "-11", GEQ); | 
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| 372 | mcf1.supplyMap(s6); | 
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| 373 | checkMcf(mcf1, mcf1.run(param), gr, l2, u, c, s6, | 
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| 374 | mcf1.INFEASIBLE, false,    0, test_str + "-12", GEQ); | 
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| 375 |  | 
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| 376 | // Tests with negative costs | 
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| 377 | mcf2.lowerMap(neg1_l1).costMap(neg1_c).supplyMap(neg1_s); | 
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| 378 | checkMcf(mcf2, mcf2.run(param), neg1_gr, neg1_l1, neg1_u1, neg1_c, neg1_s, | 
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| 379 | mcf2.UNBOUNDED, false,     0, test_str + "-13"); | 
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| 380 | mcf2.upperMap(neg1_u2); | 
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| 381 | checkMcf(mcf2, mcf2.run(param), neg1_gr, neg1_l1, neg1_u2, neg1_c, neg1_s, | 
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| 382 | mcf2.OPTIMAL, true,   -40000, test_str + "-14"); | 
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| 383 | mcf2.resetParams().lowerMap(neg1_l2).costMap(neg1_c).supplyMap(neg1_s); | 
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| 384 | checkMcf(mcf2, mcf2.run(param), neg1_gr, neg1_l2, neg1_u1, neg1_c, neg1_s, | 
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| 385 | mcf2.UNBOUNDED, false,     0, test_str + "-15"); | 
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| 386 |  | 
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| 387 | mcf3.costMap(neg2_c).supplyMap(neg2_s); | 
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| 388 | if (full_neg_cost_support) { | 
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| 389 | checkMcf(mcf3, mcf3.run(param), neg2_gr, neg2_l, neg2_u, neg2_c, neg2_s, | 
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| 390 | mcf3.OPTIMAL, true,   -300, test_str + "-16", GEQ); | 
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| 391 | } else { | 
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| 392 | checkMcf(mcf3, mcf3.run(param), neg2_gr, neg2_l, neg2_u, neg2_c, neg2_s, | 
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| 393 | mcf3.UNBOUNDED, false,   0, test_str + "-17", GEQ); | 
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| 394 | } | 
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| 395 | mcf3.upperMap(neg2_u); | 
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| 396 | checkMcf(mcf3, mcf3.run(param), neg2_gr, neg2_l, neg2_u, neg2_c, neg2_s, | 
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| 397 | mcf3.OPTIMAL, true,     -300, test_str + "-18", GEQ); | 
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| 398 |  | 
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| 399 | // Tests for empty graph | 
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| 400 | Digraph gr0; | 
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| 401 | MCF mcf0(gr0); | 
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| 402 | mcf0.run(param); | 
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| 403 | check(mcf0.totalCost() == 0, "Wrong total cost"); | 
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| 404 | } | 
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| 405 |  | 
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| 406 | template < typename MCF, typename Param > | 
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| 407 | void runMcfLeqTests( Param param, | 
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| 408 | const std::string &test_str = "" ) | 
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| 409 | { | 
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| 410 | // Tests for the LEQ form | 
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| 411 | MCF mcf1(gr); | 
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| 412 | mcf1.supplyType(mcf1.LEQ); | 
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| 413 | mcf1.upperMap(u).costMap(c).supplyMap(s6); | 
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| 414 | checkMcf(mcf1, mcf1.run(param), gr, l1, u, c, s6, | 
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| 415 | mcf1.OPTIMAL, true,   5080, test_str + "-19", LEQ); | 
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| 416 | mcf1.lowerMap(l2); | 
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| 417 | checkMcf(mcf1, mcf1.run(param), gr, l2, u, c, s6, | 
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| 418 | mcf1.OPTIMAL, true,   5930, test_str + "-20", LEQ); | 
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| 419 | mcf1.supplyMap(s5); | 
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| 420 | checkMcf(mcf1, mcf1.run(param), gr, l2, u, c, s5, | 
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| 421 | mcf1.INFEASIBLE, false,  0, test_str + "-21", LEQ); | 
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| 422 | } | 
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| 423 |  | 
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| 424 |  | 
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| 425 | int main() | 
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| 426 | { | 
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| 427 | // Read the test networks | 
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| 428 | std::istringstream input(test_lgf); | 
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| 429 | DigraphReader<Digraph>(gr, input) | 
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| 430 | .arcMap("cost", c) | 
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| 431 | .arcMap("cap", u) | 
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| 432 | .arcMap("low1", l1) | 
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| 433 | .arcMap("low2", l2) | 
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| 434 | .arcMap("low3", l3) | 
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| 435 | .nodeMap("sup1", s1) | 
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| 436 | .nodeMap("sup2", s2) | 
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| 437 | .nodeMap("sup3", s3) | 
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| 438 | .nodeMap("sup4", s4) | 
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| 439 | .nodeMap("sup5", s5) | 
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| 440 | .nodeMap("sup6", s6) | 
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| 441 | .node("source", v) | 
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| 442 | .node("target", w) | 
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| 443 | .run(); | 
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| 444 |  | 
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| 445 | std::istringstream neg_inp1(test_neg1_lgf); | 
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| 446 | DigraphReader<Digraph>(neg1_gr, neg_inp1) | 
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| 447 | .arcMap("cost", neg1_c) | 
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| 448 | .arcMap("low1", neg1_l1) | 
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| 449 | .arcMap("low2", neg1_l2) | 
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| 450 | .nodeMap("sup", neg1_s) | 
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| 451 | .run(); | 
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| 452 |  | 
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| 453 | std::istringstream neg_inp2(test_neg2_lgf); | 
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| 454 | DigraphReader<Digraph>(neg2_gr, neg_inp2) | 
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| 455 | .arcMap("cost", neg2_c) | 
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| 456 | .nodeMap("sup", neg2_s) | 
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| 457 | .run(); | 
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| 458 |  | 
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| 459 | // Check the interface of NetworkSimplex | 
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| 460 | { | 
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| 461 | typedef concepts::Digraph GR; | 
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| 462 | checkConcept< McfClassConcept<GR, int, int>, | 
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| 463 | NetworkSimplex<GR> >(); | 
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| 464 | checkConcept< McfClassConcept<GR, double, double>, | 
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| 465 | NetworkSimplex<GR, double> >(); | 
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| 466 | checkConcept< McfClassConcept<GR, int, double>, | 
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| 467 | NetworkSimplex<GR, int, double> >(); | 
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| 468 | } | 
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| 469 |  | 
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| 470 | // Check the interface of CapacityScaling | 
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| 471 | { | 
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| 472 | typedef concepts::Digraph GR; | 
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| 473 | checkConcept< McfClassConcept<GR, int, int>, | 
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| 474 | CapacityScaling<GR> >(); | 
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| 475 | checkConcept< McfClassConcept<GR, double, double>, | 
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| 476 | CapacityScaling<GR, double> >(); | 
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| 477 | checkConcept< McfClassConcept<GR, int, double>, | 
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| 478 | CapacityScaling<GR, int, double> >(); | 
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| 479 | typedef CapacityScaling<GR>:: | 
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| 480 | SetHeap<concepts::Heap<int, RangeMap<int> > >::Create CAS; | 
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| 481 | checkConcept< McfClassConcept<GR, int, int>, CAS >(); | 
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| 482 | } | 
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| 483 |  | 
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| 484 | // Check the interface of CostScaling | 
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| 485 | { | 
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| 486 | typedef concepts::Digraph GR; | 
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| 487 | checkConcept< McfClassConcept<GR, int, int>, | 
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| 488 | CostScaling<GR> >(); | 
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| 489 | checkConcept< McfClassConcept<GR, double, double>, | 
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| 490 | CostScaling<GR, double> >(); | 
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| 491 | checkConcept< McfClassConcept<GR, int, double>, | 
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| 492 | CostScaling<GR, int, double> >(); | 
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| 493 | typedef CostScaling<GR>:: | 
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| 494 | SetLargeCost<double>::Create COS; | 
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| 495 | checkConcept< McfClassConcept<GR, int, int>, COS >(); | 
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| 496 | } | 
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| 497 |  | 
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| 498 | // Check the interface of CycleCanceling | 
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| 499 | { | 
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| 500 | typedef concepts::Digraph GR; | 
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| 501 | checkConcept< McfClassConcept<GR, int, int>, | 
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| 502 | CycleCanceling<GR> >(); | 
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| 503 | checkConcept< McfClassConcept<GR, double, double>, | 
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| 504 | CycleCanceling<GR, double> >(); | 
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| 505 | checkConcept< McfClassConcept<GR, int, double>, | 
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| 506 | CycleCanceling<GR, int, double> >(); | 
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| 507 | } | 
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| 508 |  | 
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| 509 | // Test NetworkSimplex | 
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| 510 | { | 
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| 511 | typedef NetworkSimplex<Digraph> MCF; | 
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| 512 | runMcfGeqTests<MCF>(MCF::FIRST_ELIGIBLE, "NS-FE", true); | 
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| 513 | runMcfLeqTests<MCF>(MCF::FIRST_ELIGIBLE, "NS-FE"); | 
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| 514 | runMcfGeqTests<MCF>(MCF::BEST_ELIGIBLE,  "NS-BE", true); | 
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| 515 | runMcfLeqTests<MCF>(MCF::BEST_ELIGIBLE,  "NS-BE"); | 
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| 516 | runMcfGeqTests<MCF>(MCF::BLOCK_SEARCH,   "NS-BS", true); | 
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| 517 | runMcfLeqTests<MCF>(MCF::BLOCK_SEARCH,   "NS-BS"); | 
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| 518 | runMcfGeqTests<MCF>(MCF::CANDIDATE_LIST, "NS-CL", true); | 
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| 519 | runMcfLeqTests<MCF>(MCF::CANDIDATE_LIST, "NS-CL"); | 
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| 520 | runMcfGeqTests<MCF>(MCF::ALTERING_LIST,  "NS-AL", true); | 
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| 521 | runMcfLeqTests<MCF>(MCF::ALTERING_LIST,  "NS-AL"); | 
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| 522 | } | 
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| 523 |  | 
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| 524 | // Test CapacityScaling | 
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| 525 | { | 
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| 526 | typedef CapacityScaling<Digraph> MCF; | 
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| 527 | runMcfGeqTests<MCF>(0, "SSP"); | 
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| 528 | runMcfGeqTests<MCF>(2, "CAS"); | 
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| 529 | } | 
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| 530 |  | 
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| 531 | // Test CostScaling | 
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| 532 | { | 
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| 533 | typedef CostScaling<Digraph> MCF; | 
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| 534 | runMcfGeqTests<MCF>(MCF::PUSH, "COS-PR"); | 
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| 535 | runMcfGeqTests<MCF>(MCF::AUGMENT, "COS-AR"); | 
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| 536 | runMcfGeqTests<MCF>(MCF::PARTIAL_AUGMENT, "COS-PAR"); | 
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| 537 | } | 
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| 538 |  | 
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| 539 | // Test CycleCanceling | 
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| 540 | { | 
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| 541 | typedef CycleCanceling<Digraph> MCF; | 
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| 542 | runMcfGeqTests<MCF>(MCF::SIMPLE_CYCLE_CANCELING, "SCC"); | 
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| 543 | runMcfGeqTests<MCF>(MCF::MINIMUM_MEAN_CYCLE_CANCELING, "MMCC"); | 
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| 544 | runMcfGeqTests<MCF>(MCF::CANCEL_AND_TIGHTEN, "CAT"); | 
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| 545 | } | 
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| 546 |  | 
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| 547 | return 0; | 
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| 548 | } | 
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