[Bug libstdc++/122172] [16 Regression] 1571 regressions due to std::make_unsigned<_Atomic_word> since r16-3810

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122172

--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Testing it now, and I see there's still one warning:

include/bits/shared_ptr_base.h:270:58: warning: ignoring attributes on template
argument '_Atomic_word' {aka 'int'} [-Wignored-attributes]
  270 |               ? -1 : __gnu_cxx::__int_traits<_Atomic_word>::__max;
      |                                                          ^