[Bug libstdc++/79980] New: Possible bug in codecvt.cpp bitmask setting code

[thakis at chromium dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79980

            Bug ID: 79980
           Summary: Possible bug in codecvt.cpp bitmask setting code
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: thakis at chromium dot org
  Target Milestone: ---

codecvt.cpp has this snippet:

    if (read_utf16_bom(from, mode) == little_endian)
      mode = codecvt_mode(mode & little_endian);

That probably should read

    if (read_utf16_bom(from, mode) == little_endian)
      mode = codecvt_mode(mode | little_endian);

instead?