[Bug libstdc++/13217] New: basic_filebuf::underflow doesn't deal gracefully with read errors

["paolo at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

In the always_noconv case, if _M_file.xsgetn returns -1 the situations is pretty
good, but the exception raised has a misleading what of "invalid byte sequence in
file". In the general case, the read error condition is not dealt with properly 
and no meaningful exception is raised, everything can happen at run time...

-- 
           Summary: basic_filebuf::underflow doesn't deal gracefully with
                    read errors
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libstdc++
        AssignedTo: paolo at gcc dot gnu dot org
        ReportedBy: paolo at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: Any


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13217