[boost] Re: BGL bfs and dfs

From: Vladimir Prus (ghost_at_[hidden])
Date: 2003-02-11 05:24:40

Hi vladimir,
> DF visit and undirected-DFV implementations (depth_first_visit_impl
> and undir_dfv_impl) functions receive ColorMaps by value, consequently the
> main trunk of the algorithm loose the graph coloring that these functions
> have performed.
> Am I missing something here?

I think so. Property maps usually have shallow copy semantics. Copies 
reference the same data.

- Volodya