From: Jeff Lucovsky <jeff@lucovsky.org>
Date: Sun, 17 Nov 2019 20:09:11 +0000 (-0500)
Subject: Add general purpose `ARRAY_SIZE` macro
X-Git-Tag: suricata-5.0.1~99
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=90c2e3561c655c9485990e6032bcaa4abddfd767;p=thirdparty%2Fsuricata.git

Add general purpose `ARRAY_SIZE` macro

This commit adds `ARRAY_SIZE` as an helper for determining the number of
elements in an initialized array. The calculation is the same but the
macro provides a convenient shortcut. The implementation was borrowed
from the kernel sources.
---

diff --git a/src/suricata-common.h b/src/suricata-common.h
index 627de0d78e..b55509c52e 100644
--- a/src/suricata-common.h
+++ b/src/suricata-common.h
@@ -494,5 +494,8 @@ char *strptime(const char * __restrict, const char * __restrict, struct tm * __r
 extern int coverage_unittests;
 extern int g_ut_modules;
 extern int g_ut_covered;
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
+
 #endif /* __SURICATA_COMMON_H__ */