Re: [Boost-Users] BGL: Problem with parallel edges and filtered_graph

From: Michael Kettner (kettner_at_[hidden])
Date: 2002-08-06 10:57:15

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Hi Jeremy,

thanks for the fix. One question remains:

As far as I can see, if I have a multigraphgraph, the call
        boost::edge(u, v, g)
returns _some_ existing edge connecting u and v.

Now lets filter the graph so that we have a filtered multigraph gFilter where 
some of the parallel edges remain visible. The call
        boost::edge(u, v, gFilter)
now returns _some_ existing edge and the information if it is visible. So it 
can be that this call returns (e, FALSE) even though there are visible edges 
connecting u and v. I would call this behaviour "surprising" for the 
developer. What I expect is that in this case some existing AND visible edge 
is returned, because I am working with a filtered graph "hiding" the filtered 
edges.

Regards,
Michael

- -- 
http://www.ive.uni-hannover.de # kettner_at_[hidden]
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