[Bug libstdc++/119880] fwide must be called before and after std::wcout to change wide orientation to allow std::cout works

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119880

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Maybe they do the same as libc++ and convert all wide strings to narrow before
writing to a byte-oriented stream, or vice versa. Or maybe they don't use stdio
for std::cout at all.