[Bug c++/119426] undefined increment of deallocated pointer allowed in constexpr

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119426

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Similar to Bug 111242 but here the pointer has already been deallocated.