[Bug libstdc++/50441] [C++0x] <type_traits> is missing GNU extension types

[classixretrox at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50441

--- Comment #6 from RétroX <classixretrox at gmail dot com> 2011-09-17 16:32:18 UTC ---
Yeah, I was talking about specifically -std=gnu++0x, because that implies that
you're accepting the GNU extensions into the standard.

I suppose that in this case, because the standard is so strict, having more
than the standard types would probably be a bad idea.  However, having
numeric_limits for them doesn't seem to have any negative impacts; on systems
that support the type, you should be able to get information on the type.