[Bug libstdc++/100621] ranges::reverse_view fails to meet its complexity requirements

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100621

--- Comment #2 from Patrick Palka <ppalka at gcc dot gnu.org> ---
We need at least additionally check that the underlying random access range has
a sized sentinel before eliding the cache.