From: Kamalesh Babulal <kamalesh.babulal@oracle.com>
Date: Mon, 7 Aug 2023 09:26:36 +0000 (+0530)
Subject: libcgroup-internal.h: add ARRAY_SIZE macro
X-Git-Tag: v3.2.0~244
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5279c5914a3a0bf15990ff88447750422b4da1c4;p=thirdparty%2Flibcgroup.git

libcgroup-internal.h: add ARRAY_SIZE macro

Add ARRAY_SIZE macro to calculate the size of an array, this helper
macro improves readability.

Signed-off-by: Kamalesh Babulal <kamalesh.babulal@oracle.com>
Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>
---

diff --git a/src/libcgroup-internal.h b/src/libcgroup-internal.h
index 1c423e1d..05dda6a2 100644
--- a/src/libcgroup-internal.h
+++ b/src/libcgroup-internal.h
@@ -88,6 +88,8 @@ extern "C" {
 #define max(x, y) ((y) < (x)?(x):(y))
 #define min(x, y) ((y) > (x)?(x):(y))
 
+#define ARRAY_SIZE(x)	(sizeof(x) / sizeof((x)[0]))
+
 struct control_value {
 	char name[FILENAME_MAX];
 	char value[CG_CONTROL_VALUE_MAX];