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

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

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

--- Comment #25 from Jonathan Wakely <redi at gcc dot gnu.org> ---
... and non-empty types, I'm just saying that's the obvious case that proves
it's possible.