[Bug libstdc++/122224] std::prev when called with non-bidirectional iterators

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122224

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Confirmed, buildbots are failing due to this:
https://builder.sourceware.org/buildbot/#/builders/312/builds/2072/steps/4/logs/stdio