[Bug libstdc++/78991] std::sort and std::unique can not use std::function with clang++ -std=c++14

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78991

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Fri Jan  6 14:04:26 2017
New Revision: 244157

URL: https://gcc.gnu.org/viewcvs?rev=244157&root=gcc&view=rev
Log:
PR78991 make __gnu_cxx::__ops constructors explicit

        PR libstdc++/78991
        * include/bits/predefined_ops.h (_Iter_comp_iter, _Iter_comp_val)
        (_Val_comp_iter, _Iter_equals_val, _Iter_pred, _Iter_comp_to_val)
        (_Iter_comp_to_iter, _Iter_negate): Make constructors explicit.
        * testsuite/25_algorithms/sort/78991.cc: New test.

Added:
    branches/gcc-5-branch/libstdc++-v3/testsuite/25_algorithms/sort/78991.cc
Modified:
    branches/gcc-5-branch/libstdc++-v3/ChangeLog
    branches/gcc-5-branch/libstdc++-v3/include/bits/predefined_ops.h