X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcfg%2Fmacros.h;h=17f9c6768d92db83972074b7ed26ba479f1c5451;hb=402c25d02455aa20dfd97dbe5199e714bec6ff9b;hp=0a721ac5a060f703d00a594ed9ab7cad25ae926e;hpb=1c11ac0ab0636d07db3899b02c5d89e2d0b020bc;p=bertos.git

diff --git a/bertos/cfg/macros.h b/bertos/cfg/macros.h
index 0a721ac5..17f9c676 100644
--- a/bertos/cfg/macros.h
+++ b/bertos/cfg/macros.h
@@ -192,8 +192,7 @@
 
 /**
  * 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.
+ * \note \a divisor is evaluated twice.
  */
 #define DIV_ROUNDUP(dividend, divisor)  (((dividend) + (divisor) - 1) / (divisor))
 
@@ -363,6 +362,14 @@
  */
 typedef uint32_t id_t;
 
+/**
+ * Check if a pointer is aligned to a certain power-of-2 size
+ */
+INLINE bool is_aligned(const void *addr, size_t size)
+{
+	return ((size_t)addr & (size - 1)) == 0;
+}
+
 /** \} */ //defgroup macros
 
 #endif /* MACROS_H */