From 95472b9b3efe233a17e370566011780bbffa9d31 Mon Sep 17 00:00:00 2001
From: noloader <noloader@57ff6487-cd31-0410-9ec3-f628ee90f5f0>
Date: Fri, 3 Jul 2015 19:32:41 +0000
Subject: Added COUNTOF to misc.h to count elements in an array (fails on
 pointers). Moved CRYPTOPP_UNUSED to misc.h

git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@569 57ff6487-cd31-0410-9ec3-f628ee90f5f0
---
 misc.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'misc.h')

diff --git a/misc.h b/misc.h
index 5b778c7..303c29c 100644
--- a/misc.h
+++ b/misc.h
@@ -66,6 +66,18 @@ struct CompileAssert
 #define CRYPTOPP_ASSERT_JOIN(X, Y) CRYPTOPP_DO_ASSERT_JOIN(X, Y)
 #define CRYPTOPP_DO_ASSERT_JOIN(X, Y) X##Y
 
+// ************** unused variable suppression ***************
+// Cast to void. Portable way to suppress warning
+#define CRYPTOPP_UNUSED(x) ((void)x)
+
+// ************** counting elements in an array ***************
+// VS2005 added _countof macro, fails on pointers
+#if defined(_MSC_VER) && (_MSC_VER >= 1400)
+# define COUNTOF(x) _countof(x)
+#else
+# define COUNTOF(x) (sizeof(x)/sizeof(x[0]))
+#endif
+
 // ************** misc classes ***************
 
 class CRYPTOPP_DLL Empty
-- 
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