[Haskell-cafe] Possible FGL bug
dave at zednenem.com
Wed Nov 25 10:58:47 EST 2009
On Wed, Nov 25, 2009 at 6:28 AM, Neil Brown <nccb2 at kent.ac.uk> wrote:
> It looks like a bug to me. Can you show an exact list of nodes and edges
> that is causing mkGraph to fail? Or is that what you have displayed, and I
> can't parse it properly?
>From what I can tell, insEdge inserts an edge between two nodes which
are already in the graph. The code is calling insEdge on
arbitrarily-labeled nodes, which may not exist in the graph.
Instead of picking arbitrary node labels, try selecting arbitrary
elements from the list of node labels.
Dave Menendez <dave at zednenem.com>
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