BGL: one further issue

From: David Abrahams (david.abrahams_at_[hidden])
Date: 2002-01-09 12:11:57

I want to use an embedded color property in my graph with a generational
counter so that I almost never have to walk over the entire graph to clear
it. It looks like the requirements placed on ColorValue make that much
harder than it needs to be, and less efficient.

-Dave

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