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Optimize bn_correct_top.

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This commit is contained in:
Andy Polyakov 2008-10-15 10:48:52 +00:00
parent 762a2e3cab
commit 256b3e9c5f
1 changed files with 5 additions and 3 deletions
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8
crypto/bn/bn.h
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@ -752,10 +752,12 @@ int RAND_pseudo_bytes(unsigned char *buf,int num);
#define bn_correct_top(a) \
{ \
BN_ULONG *ftl; \
if ((a)->top > 0) \
int top = (a)->top; \
if (top > 0) \
{ \
for (ftl= &((a)->d[(a)->top-1]); (a)->top > 0; (a)->top--) \
if (*(ftl--)) break; \
for (ftl= &((a)->d[top-1]); top > 0; top--) \
if (*(ftl--)) break; \
(a)->top = top; \
} \
bn_pollute(a); \
}