https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99985
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- So do we need #if __cplusplus < 201402L return _No_realloc && is_nothrow_copy_constructible<_Hash>() && is_nothrow_copy_constructible<_Equal>(); #else if _GLIBCXX17_CONSTEXPR (_No_realloc) if _GLIBCXX17_CONSTEXPR (is_nothrow_copy_constructible<_Hash>()) return is_nothrow_copy_constructible<_Equal>(); #endif ?