From: Emilia Kasper <emilia@openssl.org>
Date: Mon, 15 Dec 2014 12:11:52 +0000 (+0100)
Subject: Fix unused variable warning
X-Git-Tag: OpenSSL_1_0_1k~52
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=458f23f61021da8badf2457db0608232b3c8bec4;p=oweals%2Fopenssl.git

Fix unused variable warning

The temporary variable causes unused variable warnings in opt mode with clang,
because the subsequent assert is compiled out.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit 6af16ec5eed85390bcbd004806a842d6153d6a31)
---

diff --git a/crypto/bn/bn.h b/crypto/bn/bn.h
index 21a1a3fe35..c4d618522e 100644
--- a/crypto/bn/bn.h
+++ b/crypto/bn/bn.h
@@ -780,7 +780,9 @@ int RAND_pseudo_bytes(unsigned char *buf,int num);
 #define bn_wcheck_size(bn, words) \
 	do { \
 		const BIGNUM *_bnum2 = (bn); \
-		assert(words <= (_bnum2)->dmax && words >= (_bnum2)->top); \
+		assert((words) <= (_bnum2)->dmax && (words) >= (_bnum2)->top); \
+		/* avoid unused variable warning with NDEBUG */ \
+		(void)(_bnum2); \
 	} while(0)
 
 #else /* !BN_DEBUG */