https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102301
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Even LLVM's libc++ does not support this ...
pinskia at gcc dot gnu.org via Gcc-bugs Sun, 12 Sep 2021 21:04:36 -0700
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102301
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Even LLVM's libc++ does not support this ...