[boost] Re: Policy or Trait?

"David B. Held" <dheld@codelogicconsulting.com> writes:

Ah, and here I think is the sticking point. I think we are thinking of traits and policies as complements/duals of each other. That is certainly a natural way for brains to dichotomize things. But, after writing my definitions and seeing more discussion, I am led to the conclusion that traits and policies are fundamentally different things.

That is, I claim that "traitness" is a property of a *type*, but

std::iterator_traits is not a type. Don't you mean a *class template*? -- Dave Abrahams Boost Consulting www.boost-consulting.com