https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83102
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Wed Nov 22 11:06:15 2017 New Revision: 255052 URL: https://gcc.gnu.org/viewcvs?rev=255052&root=gcc&view=rev Log: PR go/83102 relax std::set checks for invocable comparison object PR go/83102 * include/bits/stl_tree.h (_Rb_tree): Relax invocable checks for comparison object pre-C++17. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/bits/stl_tree.h