Aleksey Gurtovoy wrote:
Eric Niebler writes:
I'm not sure what you mean. The "current code" for remove_pointer, et al. for VC6 and VC7 is broken -- it does nothing.
It does, see http://www.boost.org/doc/html/boost_typetraits/category.html#transform.broke....
You want to see a performance comparison between code that doesn't work and code that does. Why?
Because we have code that depends on Type Traits working reliably on MSVC 6.5 -- and taking a reasonable amount of time to compile.
Ah. But the fact remains that remove_pointer et al. are indeed broken on VC6 and VC7, and the regression tests bear this out. http://tinyurl.com/8fs7w IMO, the best path is to preserve the meaning of BOOST_BROKEN_COMPILER_TYPE_TRAITS_SPECIALIZATION for compilers without PTS. That is, it still defines full specializations of the type traits templates. But the typeof implementation should be what the primary template uses for compilers without PTS. That way, everything that is working now, keeps working with no change in performance. -- Eric Niebler Boost Consulting www.boost-consulting.com