code: @Override
      public final int codeToMbc(int code, byte[] bytes, int p) {
          if (code > MAX_BYTE) return ErrorCodes.ERR_TOO_BIG_WIDE_CHAR_VALUE;
  
          bytes[p] = (byte)code;
          return 1;
      }
docs: onigenc_single_byte_code_to_mbc