Re: [boost] [Graph] Improved creation of visitors from function objects

From: Vladimir Prus (ghost_at_[hidden])
Date: 2003-06-20 09:15:41

Douglas Gregor wrote:
> Creating new visitors in the BGL can be a pain, because it may require a
> lot of extra typing for simple cases. I'd like to add the ability to attach
> function objects to visitor events like this:
>
>   dfs_visitor<>()
>     .do_on_back_edge(var(has_cycle) = true)
>     .do_on_tree_edge(bind(&vector<edge>::push_back, ref(tree_edges), _1));
>
> I'd really prefer "on_XXX" instead of "do_on_XXX", but GCC trips over the
> former syntax. Anyway, the code is ready to check in if there are no
> objections. The patch isn't very large, but is bigger than I would like to
> post here.

Hi Doug,
did you commit that patch already? I can't find anything named "do_on" in 
current CVS.

- Volodya