Re: [Boost-users] [graph] Bug - add_edge (adjacency_list) does not report if edge already exists as stated in documentation

Hi Martin, I think everything is more or less correct here. Changing your graph representation to boost::adjacency_list results in the behavior you expect. Regards, Dmitry Martin Mann wrote:

Hi,

I encountered the following problem :

a successive call with equal parameters u, v, and g of

============================================================ std::pair add_edge( vertex_descriptor u , vertex_descriptor v , adjacency_list& g ) ============================================================

yields both times "RESULT.second == true".

But the documentation states, that only in case it is NOT PRESENT it should be true, which is obviously wrong for the second call.

//! The definition of a the internal graph representation typedef boost::adjacency_list< boost::vecS , boost::vecS , boost::undirectedS , CoreGraph_NodeProperties , CoreGraph_EdgeProperties > CoreGraph;

============================================================