[Bug c++/61133] g++ doesn't implement DR1760

[ville.voutilainen at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61133

--- Comment #1 from Ville Voutilainen <ville.voutilainen at gmail dot com> ---
Patch is in https://gcc.gnu.org/ml/gcc-patches/2014-05/msg00656.html