[Bug libstdc++/97731] terminate called in std::experimental::filesystem::recursive_directory_iterator

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97731

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Looks like I fixed it for std::filesystem::recursive_directory_iterator but not
the experimental version:

      if (ecptr ? sp->top().advance(*ecptr) : sp->top().advance())
        _M_dirs.swap(sp);