[Bug libstdc++/125439] std::in_range doesn't accept const-qualified result type

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125439

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Note, libc++ is buggy I think since
https://github.com/llvm/llvm-project/commit/0ebfe12891923c3a1d5ccec191135e35b142bbf4