[Bug c++/67376] [5/6 regression] Comparison with pointer to past-the-end of array fails inside constant expression

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67376

--- Comment #5 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
And:

 static_assert(a.elems_ + 1, "");

started to get rejected with r212499.