test/hao_orlin_test.cc
changeset 646 f63e87b9748e
parent 643 293551ad254f
child 956 141f9c0db4a3
child 1081 f1398882a928
child 1171 7e368d9b67f7
     1.1 --- a/test/hao_orlin_test.cc	Sat Apr 18 21:54:30 2009 +0200
     1.2 +++ b/test/hao_orlin_test.cc	Tue Apr 21 10:34:49 2009 +0100
     1.3 @@ -19,9 +19,12 @@
     1.4  #include <sstream>
     1.5  
     1.6  #include <lemon/smart_graph.h>
     1.7 +#include <lemon/adaptors.h>
     1.8 +#include <lemon/concepts/digraph.h>
     1.9 +#include <lemon/concepts/maps.h>
    1.10 +#include <lemon/lgf_reader.h>
    1.11  #include <lemon/hao_orlin.h>
    1.12  
    1.13 -#include <lemon/lgf_reader.h>
    1.14  #include "test_tools.h"
    1.15  
    1.16  using namespace lemon;
    1.17 @@ -37,27 +40,124 @@
    1.18    "4\n"
    1.19    "5\n"
    1.20    "@edges\n"
    1.21 -  "     label  capacity\n"
    1.22 -  "0 1  0      2\n"
    1.23 -  "1 2  1      2\n"
    1.24 -  "2 0  2      2\n"
    1.25 -  "3 4  3      2\n"
    1.26 -  "4 5  4      2\n"
    1.27 -  "5 3  5      2\n"
    1.28 -  "2 3  6      3\n";
    1.29 +  "     cap1 cap2 cap3\n"
    1.30 +  "0 1  1    1    1   \n"
    1.31 +  "0 2  2    2    4   \n"
    1.32 +  "1 2  4    4    4   \n"
    1.33 +  "3 4  1    1    1   \n"
    1.34 +  "3 5  2    2    4   \n"
    1.35 +  "4 5  4    4    4   \n"
    1.36 +  "5 4  4    4    4   \n"
    1.37 +  "2 3  1    6    6   \n"
    1.38 +  "4 0  1    6    6   \n";
    1.39 +
    1.40 +void checkHaoOrlinCompile()
    1.41 +{
    1.42 +  typedef int Value;
    1.43 +  typedef concepts::Digraph Digraph;
    1.44 +
    1.45 +  typedef Digraph::Node Node;
    1.46 +  typedef Digraph::Arc Arc;
    1.47 +  typedef concepts::ReadMap<Arc, Value> CapMap;
    1.48 +  typedef concepts::WriteMap<Node, bool> CutMap;
    1.49 +
    1.50 +  Digraph g;
    1.51 +  Node n;
    1.52 +  CapMap cap;
    1.53 +  CutMap cut;
    1.54 +  Value v;
    1.55 +
    1.56 +  HaoOrlin<Digraph, CapMap> ho_test(g, cap);
    1.57 +  const HaoOrlin<Digraph, CapMap>&
    1.58 +    const_ho_test = ho_test;
    1.59 +
    1.60 +  ho_test.init();
    1.61 +  ho_test.init(n);
    1.62 +  ho_test.calculateOut();
    1.63 +  ho_test.calculateIn();
    1.64 +  ho_test.run();
    1.65 +  ho_test.run(n);
    1.66 +
    1.67 +  v = const_ho_test.minCutValue();
    1.68 +  v = const_ho_test.minCutMap(cut);
    1.69 +}
    1.70 +
    1.71 +template <typename Graph, typename CapMap, typename CutMap>
    1.72 +typename CapMap::Value 
    1.73 +  cutValue(const Graph& graph, const CapMap& cap, const CutMap& cut)
    1.74 +{
    1.75 +  typename CapMap::Value sum = 0;
    1.76 +  for (typename Graph::ArcIt a(graph); a != INVALID; ++a) {
    1.77 +    if (cut[graph.source(a)] && !cut[graph.target(a)])
    1.78 +      sum += cap[a];
    1.79 +  }
    1.80 +  return sum;
    1.81 +}
    1.82  
    1.83  int main() {
    1.84 -  SmartGraph graph;
    1.85 -  SmartGraph::EdgeMap<int> capacity(graph);
    1.86 +  SmartDigraph graph;
    1.87 +  SmartDigraph::ArcMap<int> cap1(graph), cap2(graph), cap3(graph);
    1.88 +  SmartDigraph::NodeMap<bool> cut(graph);
    1.89  
    1.90 -  istringstream lgfs(lgf);
    1.91 -  graphReader(graph, lgfs).
    1.92 -    edgeMap("capacity", capacity).run();
    1.93 +  istringstream input(lgf);
    1.94 +  digraphReader(graph, input)
    1.95 +    .arcMap("cap1", cap1)
    1.96 +    .arcMap("cap2", cap2)
    1.97 +    .arcMap("cap3", cap3)
    1.98 +    .run();
    1.99  
   1.100 -  HaoOrlin<SmartGraph, SmartGraph::EdgeMap<int> > ho(graph, capacity);
   1.101 -  ho.run();
   1.102 +  {
   1.103 +    HaoOrlin<SmartDigraph> ho(graph, cap1);
   1.104 +    ho.run();
   1.105 +    ho.minCutMap(cut);
   1.106 +    
   1.107 +    check(ho.minCutValue() == 1, "Wrong cut value");
   1.108 +    check(ho.minCutValue() == cutValue(graph, cap1, cut), "Wrong cut value");
   1.109 +  }
   1.110 +  {
   1.111 +    HaoOrlin<SmartDigraph> ho(graph, cap2);
   1.112 +    ho.run();
   1.113 +    ho.minCutMap(cut);
   1.114  
   1.115 -  check(ho.minCutValue() == 3, "Wrong cut value");
   1.116 +    check(ho.minCutValue() == 1, "Wrong cut value");
   1.117 +    check(ho.minCutValue() == cutValue(graph, cap2, cut), "Wrong cut value");
   1.118 +  }
   1.119 +  {
   1.120 +    HaoOrlin<SmartDigraph> ho(graph, cap3);
   1.121 +    ho.run();
   1.122 +    ho.minCutMap(cut);
   1.123 +    
   1.124 +    check(ho.minCutValue() == 1, "Wrong cut value");
   1.125 +    check(ho.minCutValue() == cutValue(graph, cap3, cut), "Wrong cut value");
   1.126 +  }
   1.127 +  
   1.128 +  typedef Undirector<SmartDigraph> UGraph;
   1.129 +  UGraph ugraph(graph);
   1.130 +  
   1.131 +  {
   1.132 +    HaoOrlin<UGraph, SmartDigraph::ArcMap<int> > ho(ugraph, cap1);
   1.133 +    ho.run();
   1.134 +    ho.minCutMap(cut);
   1.135 +    
   1.136 +    check(ho.minCutValue() == 2, "Wrong cut value");
   1.137 +    check(ho.minCutValue() == cutValue(ugraph, cap1, cut), "Wrong cut value");
   1.138 +  }
   1.139 +  {
   1.140 +    HaoOrlin<UGraph, SmartDigraph::ArcMap<int> > ho(ugraph, cap2);
   1.141 +    ho.run();
   1.142 +    ho.minCutMap(cut);
   1.143 +    
   1.144 +    check(ho.minCutValue() == 5, "Wrong cut value");
   1.145 +    check(ho.minCutValue() == cutValue(ugraph, cap2, cut), "Wrong cut value");
   1.146 +  }
   1.147 +  {
   1.148 +    HaoOrlin<UGraph, SmartDigraph::ArcMap<int> > ho(ugraph, cap3);
   1.149 +    ho.run();
   1.150 +    ho.minCutMap(cut);
   1.151 +    
   1.152 +    check(ho.minCutValue() == 5, "Wrong cut value");
   1.153 +    check(ho.minCutValue() == cutValue(ugraph, cap3, cut), "Wrong cut value");
   1.154 +  }
   1.155  
   1.156    return 0;
   1.157  }