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| author | jan.nijtmans <nijtmans@users.sourceforge.net> | 2017-02-01 15:03:59 (GMT) |
|---|---|---|
| committer | jan.nijtmans <nijtmans@users.sourceforge.net> | 2017-02-01 15:03:59 (GMT) |
| commit | 3bf70f8a7d94966b183bc23250a2b45fd4248241 (patch) | |
| tree | a3a8dd299606092b7219a6d8ae10b5deba724aab /libtommath/bn_mp_mod.c | |
| parent | 8826c4b5dc048432fbed200da55eef080c75b32c (diff) | |
| parent | 680d27740a871cd27464c07ed2afee0f4104dbd4 (diff) | |
| download | tcl-pyk_emptystring.zip tcl-pyk_emptystring.tar.gz tcl-pyk_emptystring.tar.bz2 | |
merge trunkpyk_emptystring
Diffstat (limited to 'libtommath/bn_mp_mod.c')
| -rw-r--r-- | libtommath/bn_mp_mod.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/libtommath/bn_mp_mod.c b/libtommath/bn_mp_mod.c index 98e155e..b67467d 100644 --- a/libtommath/bn_mp_mod.c +++ b/libtommath/bn_mp_mod.c @@ -1,4 +1,4 @@ -#include <tommath.h> +#include <tommath_private.h> #ifdef BN_MP_MOD_C /* LibTomMath, multiple-precision integer library -- Tom St Denis * @@ -12,10 +12,10 @@ * The library is free for all purposes without any express * guarantee it works. * - * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com + * Tom St Denis, tstdenis82@gmail.com, http://libtom.org */ -/* c = a mod b, 0 <= c < b */ +/* c = a mod b, 0 <= c < b if b > 0, b < c <= 0 if b < 0 */ int mp_mod (mp_int * a, mp_int * b, mp_int * c) { @@ -31,14 +31,18 @@ mp_mod (mp_int * a, mp_int * b, mp_int * c) return res; } - if (t.sign != b->sign) { - res = mp_add (b, &t, c); - } else { + if ((mp_iszero(&t) != MP_NO) || (t.sign == b->sign)) { res = MP_OKAY; mp_exch (&t, c); + } else { + res = mp_add (b, &t, c); } mp_clear (&t); return res; } #endif + +/* $Source$ */ +/* $Revision$ */ +/* $Date$ */ |