[Bug libstdc++/108846] std::copy, std::copy_n and std::copy_backward on potentially overlapping subobjects

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108846

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I suspect std::move has the same issue too. The ability to use memmove with
trivial copyable subobjects ...