b_FLAG
if (cmd_info->opt_flgs & b_FLAG)
if (cmd_info->opt_flgs & b_FLAG)
if (cmd_info->opt_flgs & (a_FLAG | b_FLAG)) {
if (cmd_info->opt_flgs & (a_FLAG | b_FLAG))
(cmd_info->opt_flgs & (a_FLAG | b_FLAG));
cmd_info->opt_flgs |= b_FLAG;