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The bn_set_max() macro is only "used" by the bn_set_[low|high]() macros

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which, in turn, are used nowhere at all. This is a good thing because
bn_set_max() would currently generate code that wouldn't compile (BIGNUM
has no 'max' element).

The only apparent use for bn_set_[low|high] would be for implementing
windowing algorithms, and all of openssl's seem to use bn_***_words()
helpers instead (including the BN_div() that Nils fixed recently, which had
been using independently-coded versions of what these unused macros are
intended for). I'm therefore consigning these macros to cvs oblivion in the
name of readability.
This commit is contained in:
Geoff Thorpe 2003-12-01 22:11:08 +00:00
parent e65c2b9872
commit 998ae048e7
1 changed files with 0 additions and 32 deletions
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32
crypto/bn/bn_lcl.h
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@ -249,38 +249,6 @@ extern "C" {
*(++ftl) = 0x0; \ *(++ftl) = 0x0; \
} }
/* This macro is to add extra stuff for development checking */
#ifdef BN_DEBUG
#define bn_set_max(r) ((r)->max=(r)->top,BN_set_flags((r),BN_FLG_STATIC_DATA))
#else
#define bn_set_max(r)
#endif
/* These macros are used to 'take' a section of a bignum for read only use */
#define bn_set_low(r,a,n) \
{ \
(r)->top=((a)->top > (n))?(n):(a)->top; \
(r)->d=(a)->d; \
(r)->neg=(a)->neg; \
(r)->flags|=BN_FLG_STATIC_DATA; \
bn_set_max(r); \
}
#define bn_set_high(r,a,n) \
{ \
if ((a)->top > (n)) \
{ \
(r)->top=(a)->top-n; \
(r)->d= &((a)->d[n]); \
} \
else \
(r)->top=0; \
(r)->neg=(a)->neg; \
(r)->flags|=BN_FLG_STATIC_DATA; \
bn_set_max(r); \
}
#ifdef BN_LLONG #ifdef BN_LLONG
#define mul_add(r,a,w,c) { \ #define mul_add(r,a,w,c) { \
BN_ULLONG t; \ BN_ULLONG t; \