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| author | gahr <gahr@gahr.ch> | 2016-03-11 17:13:38 (GMT) |
|---|---|---|
| committer | gahr <gahr@gahr.ch> | 2016-03-11 17:13:38 (GMT) |
| commit | 48a3d3e4dca22efb2981fd8eb9b505b19438a704 (patch) | |
| tree | f0acc29307113ad908a79330d8b8c924c8ad79ae /libtommath/bn_mp_mod.c | |
| parent | 5137357e74c887368ad68c3cb09998b154e68d4f (diff) | |
| download | tcl-48a3d3e4dca22efb2981fd8eb9b505b19438a704.zip tcl-48a3d3e4dca22efb2981fd8eb9b505b19438a704.tar.gz tcl-48a3d3e4dca22efb2981fd8eb9b505b19438a704.tar.bz2 | |
[e6f27aa56f] Initial import of libtommath-1.0
This commit brings in libtommath-1.0, as of tag v1.0 of the upstream repository
at https://github.com/libtom/libtommath.
Only the top-level directory has been imported: the demo, etc, logs, mtest,
pics, pre_gen, and tombc directories have been removed from our repo.
The stubs tables have been regenerated to accomodate for the new function:
mp_expt_d_ex(mp_int *a, mp_digit b, mp_int *c, int fast);
See https://github.com/libtom/libtommath/commit/e9b1837 for details.
Only the unix build system has been modified for now. Windows and Mac OSX will
come later.
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 + +/* $Source$ */ +/* $Revision$ */ +/* $Date$ */ |