Re: prim_minimum_spanning_tree crashes

From: Stephan Höfer (yg-boost-users_at_[hidden])
Date: 2003-08-05 02:21:50

Thank you for the hint. I've overseen that. But beside that there must be another mistake, because it crashes again
after that slight change of the code.

Douglas Gregor schrieb:

> ----- Original Message -----
> From: "Stephan Höfer" <yg-boost-users_at_[hidden]>
> > Graph tSubGraph = g.create_subgraph();
>
> Ah ha! You want:
>
> Graph& tSubGraph = g.create_subgraph();
>
> The root graph actually allocates a new child in its own memory space in
> create_subgraph(), and then gives you a reference to the subgraph. What's
> happening here is that subgraph is getting double-freed. Yes, we should do
> something to protect against this.
>
>     Doug
>
>
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