[Bug libstdc++/11740] New: ctype<wchar_t>::do_is(mask, wchar_t) doesn't handle multiple bits in mask.

[peturr02 at ru dot is]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11740

           Summary: ctype<wchar_t>::do_is(mask, wchar_t) doesn't handle
                    multiple bits in mask.
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: peturr02 at ru dot is
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu

ctype<wchar_t>::do_is(mask m, wchar_t c) assumes that m is equal to one
of the values in the ctype_base::mask enumeration. This causes do_is to
fail when more than one bit is set in m.