https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103453
--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> --- And as documented: https://gcc.gnu.org/onlinedocs/gcc-11.2.0/libstdc++/manual/manual/using_macros.html
redi at gcc dot gnu.org via Gcc-bugs Wed, 01 Dec 2021 00:37:33 -0800
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103453
--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> --- And as documented: https://gcc.gnu.org/onlinedocs/gcc-11.2.0/libstdc++/manual/manual/using_macros.html