https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71771
--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Tue Aug 23 10:13:26 2016 New Revision: 239691 URL: https://gcc.gnu.org/viewcvs?rev=239691&root=gcc&view=rev Log: Implement resolution of LWG DR 685 precisely PR libstdc++/71771 * include/bits/stl_iterator.h (operator-(reverse_iterator<Iter>, reverse_iterator<Iter>): Only define for C++98 mode. (operator-(move_iterator<Iter>, move_iterator<Iter>): Don't define. * testsuite/24_iterators/headers/iterator/synopsis.cc: Use -std=gnu++98. * testsuite/24_iterators/headers/iterator/synopsis_c++11.cc: New test. * testsuite/24_iterators/headers/iterator/synopsis_c++14.cc: New test. * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: New test. * testsuite/24_iterators/move_iterator/greedy_ops.cc: Don't test difference operator. * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Only test difference operator for C++98. * testsuite/24_iterators/reverse_iterator/71771.cc: New test. Added: trunk/libstdc++-v3/testsuite/24_iterators/headers/iterator/synopsis_c++11.cc trunk/libstdc++-v3/testsuite/24_iterators/headers/iterator/synopsis_c++14.cc - copied, changed from r239690, trunk/libstdc++-v3/testsuite/24_iterators/reverse_iterator/greedy_ops.cc trunk/libstdc++-v3/testsuite/24_iterators/headers/iterator/synopsis_c++17.cc trunk/libstdc++-v3/testsuite/24_iterators/reverse_iterator/71771.cc - copied, changed from r239690, trunk/libstdc++-v3/testsuite/24_iterators/reverse_iterator/greedy_ops.cc Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/bits/stl_iterator.h trunk/libstdc++-v3/testsuite/24_iterators/headers/iterator/synopsis.cc trunk/libstdc++-v3/testsuite/24_iterators/move_iterator/greedy_ops.cc trunk/libstdc++-v3/testsuite/24_iterators/reverse_iterator/greedy_ops.cc
