[Bug libstdc++/94051] #include <iosfwd> & <string_view> is not enough for operator<<

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94051

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2020-03-05
     Ever confirmed|0                           |1
      Known to fail|                            |10.0, 7.5.0, 8.3.0, 9.2.0