[Bug libstdc++/70437] [6 Regression] Instantiation loop with pair and is_constructible

[ville at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70437

--- Comment #3 from ville at gcc dot gnu.org ---
Author: ville
Date: Tue Apr  5 11:31:30 2016
New Revision: 234743

URL: https://gcc.gnu.org/viewcvs?rev=234743&root=gcc&view=rev
Log:
        PR libstdc++/70437
        * include/bits/stl_pair.h (_ConstructiblePair,
        _ImplicitlyConvertiblePair, _MoveConstructiblePair,
        _ImplicitlyMoveConvertiblePair): Add shortcut conditions
        for same-type cases.
        * testsuite/20_util/pair/70437.cc: New.

Added:
    trunk/libstdc++-v3/testsuite/20_util/pair/70437.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/stl_pair.h