[Bug libstdc++/109922] : consider removing operator>> for istream >> setfill(c)

[de34 at live dot cn via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109922

--- Comment #3 from Jiang An <de34 at live dot cn> ---
> setfill and its friends

I was wrong. Only setfill itself is so relaxed.