[Bug libstdc++/104465] std::vector should satisfy std::ranges::viewable_range (P2415 for -c++2b)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104465

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Younan Zhang from comment #0)
> It seems that P2415 is still not implemented for libstdc++ yet.

Correct.