[Bug libstdc++/93672] [11/12/13/14 Regression] std::basic_istream::ignore hangs if delim MSB is set

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93672

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|std::basic_istream::ignore  |[11/12/13/14 Regression]
                   |hangs if delim MSB is set   |std::basic_istream::ignore
                   |                            |hangs if delim MSB is set
      Known to fail|                            |11.4.0, 12.3.0, 13.2.0,
                   |                            |14.0, 4.0.0, 9.1.0
      Known to work|                            |3.4.6
   Target Milestone|---                         |11.5

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The incorrect behaviour was introduced with r0-59139-g80dddedcaf316e