[Bug libstdc++/120305] Cannot create a std::vector from a std::ranges::transform_view.

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120305

--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> ---
tl;dr if you want to compile with strict -std=c++20 -pedantic settings, you
need to strictly follow the rules of the standard.