lib: add array_size() helper

implement array_size as sizeof(array) / sizeof(array element)

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>

diff --git a/lib/memory.h b/lib/memory.h
index a7eddce4e13e493c04a5d7b73b822721a0fd2707..23962235dbfe26b57cc7cd4de9d784099d1dd2bc 100644 (file)
--- a/lib/memory.h
+++ b/lib/memory.h
@@ -21,6 +21,8 @@ Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 #ifndef _ZEBRA_MEMORY_H
 #define _ZEBRA_MEMORY_H
 
+#define array_size(ar) (sizeof(ar) / sizeof(ar[0]))
+
 /* For pretty printing of memory allocate information. */
 struct memory_list
 {