Re: [boost] Moving files around

John Maddock wrote:

boost/utility/declval.hpp was moved into the type_traits repository to reduce dependencies on utility. OK fair enough.

I could have moved it into core, but I didn't want to start adding type traits there until we've decided whether we're going to have some kind of "core type traits". Although, as things currently seem to stand, replicating a subset of the type traits in core, along with a "proper" core::bool_, looks like the only viable way forward. I still don't like that option much though. As for the general point of your post, yes, you're absolutely right. In fact, I would say that we should as a general rule no longer move headers around at all.