https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109922
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Last reconfirmed| |2023-05-22
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Hmm, this is interesting. The spec has only mentioned setfill for output since
C++98, but Langer & Kreft says that setfill is for both input and output, and
says it applies to basic_ios<charT> (rather than basic_ostream).
I wonder if pre-standard iostreams defined this for istream, and that changed,
which explains the behaviour of libstdc++ and MSVC. I'll dig further ...
