[Bug libstdc++/115497] [15 Regression] __is_pointer doesn't compile with clang since 014879ea4c86b3b8ab6b61a1226ee5b31e816c8b

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115497

--- Comment #17 from Jonathan Wakely <redi at gcc dot gnu.org> ---
And this one is needed before that patch series:
https://gcc.gnu.org/pipermail/gcc-patches/2024-June/655267.html