[Bug libstdc++/69478] [4.9/5 Regression] std::copy/std::move broken with trivial move-only types

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69478

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Wed Apr 20 14:30:39 2016
New Revision: 235285

URL: https://gcc.gnu.org/viewcvs?rev=235285&root=gcc&view=rev
Log:
Fix assertions for move assignment of trivial types

Backport from mainline
2016-01-26  Jonathan Wakely  <jwak...@redhat.com>

        PR libstdc++/69478
        * include/bits/stl_algobase.h (__copy_move<_IsMove, true,
        random_access_iterator_tag>): Check is_move_assignable when moving.
        (__copy_move_backwards<_IsMove, true, random_access_iterator_tag>):
        Likewise.
        * testsuite/25_algorithms/copy/move_iterators/69478.cc: New.
        * testsuite/25_algorithms/copy_backward/move_iterators/69478.cc: New.
        * testsuite/25_algorithms/move/69478.cc: New.
        * testsuite/25_algorithms/move_backward/69478.cc: New.

Added:
   
branches/gcc-4_9-branch/libstdc++-v3/testsuite/25_algorithms/copy/move_iterators/69478.cc
   
branches/gcc-4_9-branch/libstdc++-v3/testsuite/25_algorithms/copy_backward/move_iterators/69478.cc
    branches/gcc-4_9-branch/libstdc++-v3/testsuite/25_algorithms/move/69478.cc
   
branches/gcc-4_9-branch/libstdc++-v3/testsuite/25_algorithms/move_backward/69478.cc
Modified:
    branches/gcc-4_9-branch/libstdc++-v3/ChangeLog
    branches/gcc-4_9-branch/libstdc++-v3/include/bits/stl_algobase.h