2013-02-04 François Dumont <fdumont@gcc.gnu.org>
* include/bits/functional_hash.h (std::__is_fast_hash<>): New.
* include/bits/basic_string.h: Specialize previous to mark
std::hash for string types as slow.
* include/bits/hashtable.h (__cache_default): Replace is_integral
with __is_fast_hash.
* src/c++11/hash_c++0x.cc: Add type_traits include.
* testsuite/23_containers/unordered_set/instantiation_neg.cc:
Adapt dg-error line number.
* testsuite/23_containers/unordered_set/
not_default_constructible_hash_neg.cc: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@195738 138bc75d-0d04-0410-961f-82ee72b054a4