[Bug c++/98798] Custom operator new[] and delete[] is buggy for aligned class

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98798

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I wonder if https://itanium-cxx-abi.github.io/cxx-abi/abi.html#array-cookies
needs to be updated for aligned new[] expressions, or if G++ is just not
accounring for them correctly.