*
* -->
*
+ * \defgroup macros General purpose macros
+ * \ingroup core
+ * \{
+ *
* \brief Common and handy function macros
*
- * \version $Id$
* \author Bernie Innocenti <bernie@codewiz.org>
* \author Giovanni Bajo <rasky@develer.com>
*/
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#endif /* !(COMPILER_STATEMENT_EXPRESSIONS && COMPILER_TYPEOF) */
+/** Align \p value to the next \p align boundary */
+#define ALIGN_UP(value, align) (((value) & ((align) - 1)) ? \
+ (((value) + ((align) - 1)) & ~((align) - 1)) : \
+ (value))
+
/** Bound \a x between \a min and \a max. */
#define MINMAX(min,x,max) (MIN(MAX(min, x), max))
* Reverse the bits contained in b (LSB becomes the MSB and so on).
* \note \a b is evaluated twice
*/
-#define REVERSE(b) \
+#define REVERSE_UINT8(b) \
((uint8_t)((((b) * 0x0802UL & 0x22110UL) | ((b) * 0x8020UL & 0x88440UL)) * 0x10101UL >> 16))
#ifndef BV
*/
#define DIV_ROUND(dividend, divisor) (((dividend) + (divisor) / 2) / (divisor))
+/**
+ * Perform an integer division rounding the result to the upper int value.
+ * \note \a divisor should preferibly be a costant, otherwise this macro generates
+ * 2 division. Also divisor is evaluated twice.
+ */
+#define DIV_ROUNDUP(dividend, divisor) (((dividend) + (divisor) - 1) / (divisor))
+
/** Round up \a x to an even multiple of the 2's power \a pad. */
#define ROUND_UP2(x, pad) (((x) + ((pad) - 1)) & ~((pad) - 1))
*/
typedef uint32_t id_t;
+/** \} */ //defgroup macros
+
#endif /* MACROS_H */