From: batt <batt@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Fri, 2 Apr 2010 09:56:44 +0000 (+0000)
Subject: DIV_ROUNDUP: new macro.
X-Git-Tag: 2.5.0~529
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=cba26286807ebe6b31c31d165677271de0417def;p=bertos.git

DIV_ROUNDUP: new macro.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@3379 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/bertos/cfg/macros.h b/bertos/cfg/macros.h
index 4f77b21e..caa2340f 100644
--- a/bertos/cfg/macros.h
+++ b/bertos/cfg/macros.h
@@ -182,6 +182,13 @@
  */
 #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))