Re: [boost] typedefs within Concept or as Trait?

From: Gennadiy Rozental (rogeeff_at_[hidden])
Date: 2008-01-10 16:54:32

Doug Gregor <dgregor <at> osl.iu.edu> writes:
> Traits classes are far better than nested typedefs, because one can  
> always specialize a traits class for an existing type---even if you  
> can't modify the type because it is built-in or comes from another  
> library that you can't modify.

This is not exactly true if typedefs are part of some concepts types used as a 
policies, right? This is true is we are talking about typedefs as members of 
your primary template parameter type.