[Bug libstdc++/68877] [6 Regression] swap for multidimensional array of int ill-formed

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68877

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Tue Jan 12 21:19:58 2016
New Revision: 232296

URL: https://gcc.gnu.org/viewcvs?rev=232296&root=gcc&view=rev
Log:
libstdc++/68877 Reimplement std::__is_swappable

2016-01-12  Daniel Kruegler  <daniel.kruegler@gmail.com>

        PR libstdc++/68877
        * include/std/type_traits: Following N4511, reimplement __is_swappable
        and __is_nothrow_swappable. Move __is_swappable to namespace std,
        adjust callers. Use __is_nothrow_swappable in swap.
        * include/bits/move.h: Use __is_nothrow_swappable in swap.
        * testsuite/20_util/is_nothrow_swappable/value.cc: Extend; remove
        __is_swappable related tests.
        * testsuite/20_util/is_swappable/value.cc: New.
        * testsuite/20_util/is_swappable/requirements/
        explicit_instantiation.cc: New.
        * testsuite/20_util/is_swappable/requirements/typedefs.cc: New.
        * testsuite/25_algorithms/swap/68877.cc: New.

Added:
    trunk/libstdc++-v3/testsuite/20_util/is_swappable/
    trunk/libstdc++-v3/testsuite/20_util/is_swappable/requirements/
   
trunk/libstdc++-v3/testsuite/20_util/is_swappable/requirements/explicit_instantiation.cc
    trunk/libstdc++-v3/testsuite/20_util/is_swappable/requirements/typedefs.cc
    trunk/libstdc++-v3/testsuite/20_util/is_swappable/value.cc
    trunk/libstdc++-v3/testsuite/25_algorithms/swap/68877.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/move.h
    trunk/libstdc++-v3/include/std/type_traits
    trunk/libstdc++-v3/testsuite/20_util/is_nothrow_swappable/value.cc