https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91480
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #3) > (In reply to frankhb1989 from comment #0) > > Also, in <bits/allocator.h>, `__cpp_lib_allocator_traits_is_always_equal` is > > wrongly spelled as `__cpp_lib_allocator_is_always_equal`. > > This is incorrect. We *also* define > __cpp_lib_allocator_traits_is_always_equal, in the appropriate places. So we > have an extra, non-standard macro. We don't spell the standard one wrong. > > The allocator_is_always_equal spelling was present in > http://open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4440.html#recs.cpp17 > and in > http://open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0096r0.html#detail. > cpp17 but gone in > http://open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0096r1.html#recs.cpp17 I've removed __cpp_lib_allocator_is_always_equal for GCC 10.
