https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77537
--- Comment #9 from ville at gcc dot gnu.org --- Author: ville Date: Mon Sep 26 19:56:14 2016 New Revision: 240507 URL: https://gcc.gnu.org/viewcvs?rev=240507&root=gcc&view=rev Log: Backport from mainline 2016-09-21 Ville Voutilainen <ville.voutilai...@gmail.com> PR libstdc++/77537 Implement LWG 2729 for pair. * include/bits/stl_pair.h (_PCC): New. (_ConstructiblePair, _ImplicitlyConvertiblePair): Turn into static member functions of _PCC. (_MoveConstructiblePair, _ImplicitlyMoveConvertiblePair): Likewise. (_PCCP): New. (pair(const _T1&, const _T2&)): Adjust. (_PCCFP): New. (pair(const pair<_U1, _U2>&)): Adjust. (pair(_U1&&, const _T2&)): Likewise. (pair(const _T1&, _U2&&)): Likewise. (pair(_U1&&, _U2&&)): Likewise. (pair(pair<_U1, _U2>&&)): Likewise. (operator=(const pair&)): Make conditionally deleted. (operator=(pair&&)): Make conditionally suppressed. (operator=(const pair<_U1, _U2>&)): Constrain. (operator=(pair<_U1, _U2>&&): Likewise. * include/std/type_traits (__nonesuch): New. * testsuite/20_util/pair/traits.cc: New. Added: branches/gcc-6-branch/libstdc++-v3/testsuite/20_util/pair/traits.cc Modified: branches/gcc-6-branch/libstdc++-v3/ChangeLog branches/gcc-6-branch/libstdc++-v3/include/bits/stl_pair.h branches/gcc-6-branch/libstdc++-v3/include/std/type_traits
