[Bug libstdc++/62039] concept checking for std::prev

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62039

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Thu Sep  3 14:35:43 2015
New Revision: 227447

URL: https://gcc.gnu.org/viewcvs?rev=227447&root=gcc&view=rev
Log:
Add concept checks to std::next and std::prev.

        PR libstdc++/62039
        * include/bits/stl_iterator_base_funcs.h (next, prev): Add concept
        checks.
        * testsuite/24_iterators/operations/prev_neg.cc: New.
        * testsuite/24_iterators/operations/next_neg.cc: New.

Added:
    trunk/libstdc++-v3/testsuite/24_iterators/operations/next_neg.cc
    trunk/libstdc++-v3/testsuite/24_iterators/operations/prev_neg.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/stl_iterator_base_funcs.h