XBT_LOG_NEW_DEFAULT_CATEGORY(msg_messages, "Messages specific for the message factory");
-#define BITS_TO_BYTES(x) ((x / 8) + (x % 8) ? 1 : 0)
+#define BITS_TO_BYTES(x) (((x) / 8 + (x) % 8) ? 1 : 0)
/** @brief Build a new empty message
* @param type type of the message