[Boost-users] BGL undirected graph

From: Line Blander Reinhardt (lbr_at_[hidden])
Date: 2008-07-29 13:03:19

Hi all
I have a problem with an graph which is undirected. I thought that this meant that an edge (u,v) was the same as an edge (v,u) however when I insert 
(u,v) into a map and later asks the map to find (v,u) then the map does not find it.
 
s=edge(target(*oei,graph_),source(*oei,graph_),graph_).first;

EMap.insert(EdgeElementPair(s,p));

Esp=NULL;

s=edge(source(*oei,graph_),target(*oei,graph_),graph_).first;

Esp = EMap[s];

how can this be????

 My graph is:

typedef boost::adjacency_list<boost::vecS, boost::vecS, boost::undirectedS, VertexProperties, 

EdgeProperties, GraphProperties> Graph;

 

Thanks 

   Line