sync with N3126

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@113097 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant 2010-09-05 00:49:04 +00:00
parent bfd5530c06
commit b02310e487