graph_wrappers ...
    11 typedef Graph<NodeData,EdgeData> TestGraph;
 
    18   bfs_node_data<TestGraph> bfs;
 
    27 typedef Graph<NodeData,EdgeData> TestGraph;
 
    32   TestGraph::NodeIterator n,m;
 
    33   TestGraph::OutEdgeIterator e;
 
    37   //for(i=1;i<=10;i++) G.AddNode().n=i; //Ez nagyon rossz!!!!!!!!
 
    38   for(i=1;i<=10;i++) G.AddNode()->id=i; //Ez a jo!!!!!!!!
 
    42    //for(i=1;i<=10;i++) cout << (G.AddNode()->n=i) << ' ';
 
    46   for(G.GetFirst(n);n.Valid();n++)
 
    47     for(G.GetFirst(m);m.Valid();++m)
 
    48       if(n!=m) G.AddEdge(n,m)->id=++i;
 
    50   cout << "Number of edges: " << i << "\n\n";
 
    52   TestGraph::AllEdgeIterator a;
 
    53   for(G.GetFirst(a);a.Valid();++a)
 
    54     cout << a->id << ":" << a.From()->id << "->" << a.To()->id << "   ";
 
    58   for(G.GetFirst(n);n.Valid();++n)
 
    60       cout << n->id << "->";
 
    61       for(G.GetFirst(e,n);e.Valid();++e)
 
    62 	cout << e->id << ":" << e.To()->id << ' ';
 
    66   cout << "\n\n\n\nB-verzio:\n\n\n";
 
    70   for(i=1;i<=10;i++) G.AddNode()->id=i;
 
    73   for(n=G.First();n.Valid();n++)
 
    74     for(m=G.First();m.Valid();++m)
 
    75       if(n!=m) G.AddEdge(n,m)->id=++i;
 
    78   for(n=G.First();n.Valid();++n) //Demo
 
    82 	if((e->id)%2) G.Delete(e++);  //it may be nice to have a postfix ++
 
    86   // cout << "Number of edges: " << i << "\n\n";
 
    88   for(a=G.First();a.Valid();++a)
 
    89     cout << a->id << ": " << a.From()->id << "->" << a.To()->id << "   ";
 
    93   for(n=G.First();n.Valid();++n)
 
    95       cout << n->id << "->";
 
    96       for(e=G.First(n);e.Valid();++e)
 
    97 	cout << e->id << ":" << e.To()->id << ' ';
 
   106     for(int i=1;i<=10;i++) G.AddNode()->id=i;
 
   109     {  //I would'n say I'm really happy with this.
 
   111       for(TestGraph::NodeIterator n(G);n.Valid();n++)
 
   112 	for(TestGraph::NodeIterator m(G);m.Valid();++m)
 
   113 	  if(n!=m) G.AddEdge(n,m)->id=++i;
 
   116     for(TestGraph::NodeIterator n(G);n.Valid();++n) //Demo
 
   118 	TestGraph::OutEdgeIterator e(G,n);
 
   120 	  if((e->id)%2) G.Delete(e++);  //it may be nice to have a postfix ++
 
   124     for(TestGraph::AllEdgeIterator a(G);a.Valid();++a)
 
   125       cout << a->id << ": " << a.From()->id << "->" << a.To()->id << "   ";
 
   129     for(TestGraph::NodeIterator n(G);n.Valid();++n)
 
   131 	cout << n->id << "->";
 
   132 	for(TestGraph::OutEdgeIterator e(G,n);e.Valid();++e)
 
   133 	  cout << e->id << ":" << e.To()->id << ' ';