[Bug libstdc++/67085] priority queue should not copy comparators when calling push_heap and pop_heap

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67085

--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Jan 19 20:29:07 2017
New Revision: 244650

URL: https://gcc.gnu.org/viewcvs?rev=244650&root=gcc&view=rev
Log:
Fix unsafe moves inside loops

        PR libstdc++/67085
        * include/bits/stl_heap.h (__is_heap): Use _GLIBCXX_MOVE.
        (__make_heap, __sort_heap): Don't use _GLIBCXX_MOVE inside loops.
        * testsuite/23_containers/priority_queue/67085.cc: Adjust expected
        number of copies.
        * testsuite/25_algorithms/make_heap/movable.cc: New test.

Added:
    trunk/libstdc++-v3/testsuite/25_algorithms/make_heap/movable.cc
      - copied, changed from r244648,
trunk/libstdc++-v3/testsuite/23_containers/priority_queue/67085.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/stl_heap.h
    trunk/libstdc++-v3/testsuite/23_containers/priority_queue/67085.cc