test/dfs_test.cc
author Balazs Dezso <deba@inf.elte.hu>
Mon, 14 Apr 2008 10:46:41 +0200
changeset 126 e1dd2a70737c
child 171 02f4d5d9bfd7
permissions -rw-r--r--
MinGW compatible time measure + changes in its internals
     1 /* -*- C++ -*-
     2  *
     3  * This file is a part of LEMON, a generic C++ optimization library
     4  *
     5  * Copyright (C) 2003-2008
     6  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
     7  * (Egervary Research Group on Combinatorial Optimization, EGRES).
     8  *
     9  * Permission to use, modify and distribute this software is granted
    10  * provided that this copyright notice appears in all copies. For
    11  * precise terms see the accompanying LICENSE file.
    12  *
    13  * This software is provided "AS IS" with no warranty of any kind,
    14  * express or implied, and with no claim as to its suitability for any
    15  * purpose.
    16  *
    17  */
    18 
    19 #include "test_tools.h"
    20 // #include <lemon/smart_graph.h>
    21 #include <lemon/list_graph.h>
    22 #include <lemon/dfs.h>
    23 #include <lemon/path.h>
    24 #include <lemon/concepts/digraph.h>
    25 
    26 using namespace lemon;
    27 
    28 const int PET_SIZE =5;
    29 
    30 
    31 void check_Dfs_SmartDigraph_Compile() 
    32 {
    33   typedef concepts::Digraph Digraph;
    34 
    35   typedef Digraph::Arc Arc;
    36   typedef Digraph::Node Node;
    37   typedef Digraph::ArcIt ArcIt;
    38   typedef Digraph::NodeIt NodeIt;
    39  
    40   typedef Dfs<Digraph> DType;
    41   
    42   Digraph G;
    43   Node n;
    44   Arc e;
    45   int l;
    46   bool b;
    47   DType::DistMap d(G);
    48   DType::PredMap p(G);
    49   //  DType::PredNodeMap pn(G);
    50   
    51   DType dfs_test(G);
    52   
    53   dfs_test.run(n);
    54   
    55   l  = dfs_test.dist(n);
    56   e  = dfs_test.predArc(n);
    57   n  = dfs_test.predNode(n);
    58   d  = dfs_test.distMap();
    59   p  = dfs_test.predMap();
    60   //  pn = dfs_test.predNodeMap();
    61   b  = dfs_test.reached(n);
    62 
    63   Path<Digraph> pp = dfs_test.path(n);
    64 }
    65 
    66 
    67 void check_Dfs_Function_Compile() 
    68 {
    69   typedef int VType;
    70   typedef concepts::Digraph Digraph;
    71 
    72   typedef Digraph::Arc Arc;
    73   typedef Digraph::Node Node;
    74   typedef Digraph::ArcIt ArcIt;
    75   typedef Digraph::NodeIt NodeIt;
    76   typedef concepts::ReadMap<Arc,VType> LengthMap;
    77    
    78   Digraph g;
    79   dfs(g,Node()).run();
    80   dfs(g).source(Node()).run();
    81   dfs(g)
    82     .predMap(concepts::WriteMap<Node,Arc>())
    83     .distMap(concepts::WriteMap<Node,VType>())
    84     .reachedMap(concepts::ReadWriteMap<Node,bool>())
    85     .processedMap(concepts::WriteMap<Node,bool>())
    86     .run(Node());
    87   
    88 }
    89 
    90 int main()
    91 {
    92     
    93   // typedef SmartDigraph Digraph;
    94   typedef ListDigraph Digraph;
    95 
    96   typedef Digraph::Arc Arc;
    97   typedef Digraph::Node Node;
    98   typedef Digraph::ArcIt ArcIt;
    99   typedef Digraph::NodeIt NodeIt;
   100   typedef Digraph::ArcMap<int> LengthMap;
   101 
   102   Digraph G;
   103   Node s, t;
   104   PetStruct<Digraph> ps = addPetersen(G,PET_SIZE);
   105    
   106   s=ps.outer[2];
   107   t=ps.inner[0];
   108   
   109   Dfs<Digraph> dfs_test(G);
   110   dfs_test.run(s);  
   111   
   112   Path<Digraph> p = dfs_test.path(t);
   113   check(p.length()==dfs_test.dist(t),"path() found a wrong path.");
   114   check(checkPath(G, p),"path() found a wrong path.");
   115   check(pathSource(G, p) == s,"path() found a wrong path.");
   116   check(pathTarget(G, p) == t,"path() found a wrong path.");
   117   
   118   for(NodeIt v(G); v!=INVALID; ++v) {
   119     check(dfs_test.reached(v),"Each node should be reached.");
   120     if ( dfs_test.predArc(v)!=INVALID ) {
   121       Arc e=dfs_test.predArc(v);
   122       Node u=G.source(e);
   123       check(u==dfs_test.predNode(v),"Wrong tree.");
   124       check(dfs_test.dist(v) - dfs_test.dist(u) == 1,
   125 	    "Wrong distance. (" << dfs_test.dist(u) << "->" 
   126 	    <<dfs_test.dist(v) << ')');
   127     }
   128   }
   129 }
   130