[Bug c++/99805] filesystem::path::parent_path got a wrong path

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99805

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I cannot reproduce this with upstream GCC. This looks like a bug in
devtoolset-10, so I'll report it to Red Hat's bugzilla instead.