[Bug c++/79592] incomplete diagnostic "is not usable as a constexpr function because:"

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79592

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #0)
> If the expression is (void*)1 rather than (void*)1LL then it is incorrectly
> accepted.

And that was the same problem, fixed by r257161.