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From: Douglas Gregor (dgregor_at_[hidden])
Date: 2005-01-28 01:52:47

On Monday 24 January 2005 11:52 am, David M. Jones wrote:
> I am using the subgraph class template in my work and I have noticed a
> number of issues.

The subgraph adaptor was never really finished; it has quite a few lingering
bugs that need to be addressed, but thus far nobody has taken on that

> (1) I am unable to use boost::listS as the storage type for vertices or
> edges. I see that this is because the association between the local and
> global vertices is stored (in part) in a std::vector. Is there a plan to
> support subgraphs of non-array-indexed graphs?

Oh, yuck. subgraph should really take a VertexIndex parameter to map from
global vertices to indices.

> (2) The remove_edge_if() and clear_vertex() functions have comments stating
> that they are wrong. Are the functions wrong or are the comments wrong?

The functions are definitely wrong.

> If
> the functions are wrong, is there a plan to fix them?

Not currently. They are, unfortunately, hard to implement well.

> (3) The remove_vertex() function states that it is "under construction".
> Who is doing the construction? Is there a time-frame for this?

Nobody is doing the construction now :( remove_vertex is one of the nastier
functions to implement, because it requires traversing both up and down the
subgraph hierarchy removing all of the local vertices, which can invalidate


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