diff options
| author | Bodo Möller <bodo@openssl.org> | 2000-02-01 11:10:54 +0000 |
|---|---|---|
| committer | Bodo Möller <bodo@openssl.org> | 2000-02-01 11:10:54 +0000 |
| commit | cb5b7850acd0d30c7550323b450abd2841f829db (patch) | |
| tree | 01a15a0059eb1042b34edfb594d0317236eed38d /crypto/bn/bn_div.c | |
| parent | fe7cd1647d48f5e96f9f02c81bcdb5cf54bd10d2 (diff) | |
If n0 == d0, we must alway compute 'rem' "by hand"
Diffstat (limited to 'crypto/bn/bn_div.c')
| -rw-r--r-- | crypto/bn/bn_div.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/crypto/bn/bn_div.c b/crypto/bn/bn_div.c index 928773af1c..f15eced0cf 100644 --- a/crypto/bn/bn_div.c +++ b/crypto/bn/bn_div.c @@ -235,8 +235,13 @@ int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor, n0=wnump[0]; n1=wnump[-1]; if (n0 == d0) + { q=BN_MASK2; - else +#ifdef REMAINDER_IS_ALREADY_CALCULATED /* in this case it isn't */ + rem=(n1-q*d0)&BN_MASK2; +#endif + } + else /* n0 < d0 */ #if defined(BN_LLONG) && defined(BN_DIV2W) && !defined(bn_div_words) q=(BN_ULONG)(((((BN_ULLONG)n0)<<BN_BITS2)|n1)/d0); #else |