On 16 January 2013 09:25, Jonathan Wakely wrote: > This fixes a regression caused by supporting the C++11 allocator > requirements in std::vector, and the fact that the unordered > containers don't have noexcept move constructors. Fixed by > specializing is_copy_constructible for the unordered containers so > vector doesn't try to copy them when their element type is not > CopyInsertable into the container, and instead resorts to a move that > might throw. > > PR libstdc++/55043 > * include/std/unordered_map: Include alloc_traits.h > * include/std/unordered_set: Likewise. > * include/bits/alloc_traits.h: Define __is_copy_insertable. > * include/bits/unordered_map.h: Use it. > * include/bits/unordered_set.h: Likewise. > * include/debug/unordered_map.h: Likewise. > * include/debug/unordered_set.h: Likewise. > * include/profile/unordered_map.h: Likewise. > * include/profile/unordered_set.h: Likewise. > * include/bits/hashtable.h: Fix comment typos. > * testsuite/23_containers/unordered_map/55043.cc: New. > * testsuite/23_containers/unordered_multimap/55043.cc: New. > * testsuite/23_containers/unordered_multiset/55043.cc: New. > * testsuite/23_containers/unordered_set/55043.cc: New. > > Tested x86_64-linux, in normal, debug and profile modes. > Committed to trunk, to be committed to the 4.7 branch shortly.
Daniel K has pointed out a problem with this fix, so I'll try to fix it again, properly, this evening.
