[Bug c++/107104] semantics of __builtin_constant_p within static_assert and return value

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107104

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Hannes Hauswedell from comment #1)
> It seems that __builtin_constant_p does not indicate whether something *can
> be* a constant but whether *it is* a constant.

Correct.