[Bug libstdc++/91547] std::string_view find_last_not_of can trigger unsigned integer overflow

[vlovich at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91547

Vitali <vlovich at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |vlovich at gmail dot com

--- Comment #4 from Vitali <vlovich at gmail dot com> ---
FWIW clang does implement this. Even if the maintainers disagree on the utility
in practice, does feature parity for command-line options with Clang change the
calculus?