Introduce ALIGN_UP() macro

Add a generic macro to align a value to the next alignment boundary.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4386 38d2e660-2303-0410-9eaa-f027e97ec537

diff --git a/bertos/cfg/macros.h b/bertos/cfg/macros.h
index d0ccf433b23321158bc043d1673c6732e4ebac93..3ec6b277e51f320f87937098c1a88094ce965a1d 100644 (file)
--- a/bertos/cfg/macros.h
+++ b/bertos/cfg/macros.h
@@ -94,6 +94,11 @@
        #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))