re PR libstdc++/54075 ([4.7.1] unordered_map insert still slower than 4.6.2)
2012-07-25 François Dumont <fdumont@gcc.gnu.org>
PR libstdc++/54075
* include/bits/hashtable.h
(_Hashtable<>::_Hashtable(_InputIterator, _InputIterator,
size_type, ...): Remove std::max usage to guarantee that hashtable
state is consistent with hash policy state.
(_Hashtable<>::rehash): Likewise. Set _M_prev_resize to 0 to avoid
the hashtable to be shrinking on next insertion.
* testsuite/23_containers/unordered_set/modifiers/reserve.cc: New.
* testsuite/23_containers/unordered_multiset/modifiers/reserve.cc: New.
* testsuite/23_containers/unordered_map/modifiers/reserve.cc: New.
* testsuite/23_containers/unordered_multimap/modifiers/reserve.cc: New.