From: David Abrahams (dave_at_[hidden])
Date: 2003-11-20 11:09:40
It seems to me that which type traits headers choose to #include the
corresponding bool_trait_undef.hpp is inconsistent. I just changed
some #includes and suddenly started seeing very mysterious errors
because the corresponding macros were undefined. Should we add some
checks to make sure neither header is #included twice in a row
without the other header intervening?
-- Dave Abrahams Boost Consulting www.boost-consulting.com