bn_nist.c: work around clang 3.0 bug.

(cherry picked from commit 750398acd85a7ae220d272d28a76dff7bb269c31)

diff --git a/crypto/bn/bn_nist.c b/crypto/bn/bn_nist.c
index 0797f929184f0a7e02b02d973e991b2787609edb..e22968d4a33bd3ad5a77609a1608abc41baf7548 100644 (file)
--- a/crypto/bn/bn_nist.c
+++ b/crypto/bn/bn_nist.c
@@ -286,29 +286,25 @@ const BIGNUM *BN_get0_nist_prime_521(void)
        }
 
 
-static void nist_cp_bn_0(BN_ULONG *buf, const BN_ULONG *a, int top, int max)
+static void nist_cp_bn_0(BN_ULONG *dst, const BN_ULONG *src, int top, int max)
        {
        int i;
-       BN_ULONG *_tmp1 = (buf);
-       const BN_ULONG *_tmp2 = (a);
 
 #ifdef BN_DEBUG
        OPENSSL_assert(top <= max);
 #endif
-       for (i = (top); i != 0; i--)
-               *_tmp1++ = *_tmp2++;
-       for (i = (max) - (top); i != 0; i--)
-               *_tmp1++ = (BN_ULONG) 0;
+       for (i = 0; i < top; i++)
+               dst[i] = src[i];
+       for (; i < max; i++)
+               dst[i] = 0;
        }
 
-static void nist_cp_bn(BN_ULONG *buf, const BN_ULONG *a, int top)
+static void nist_cp_bn(BN_ULONG *dst, const BN_ULONG *src, int top)
        { 
        int i;
-       BN_ULONG *_tmp1 = (buf);
-       const BN_ULONG *_tmp2 = (a);
 
-       for (i = (top); i != 0; i--)
-               *_tmp1++ = *_tmp2++;
+       for (i = 0; i < top; i++)
+               dst[i] = src[i];
        }
 
 #if BN_BITS2 == 64