scanopt_err
scanopt_err (s, opt_offset, 0, errcode);
return scanopt_err (s, opt_offset, 1, errcode);
scanopt_err (s, opt_offset, is_short, errcode =
return scanopt_err (s, opt_offset, is_short,
static int scanopt_err PROTO ((struct _scanopt_t *, int, int, int));