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author | jan.nijtmans <nijtmans@users.sourceforge.net> | 2016-11-16 15:22:26 (GMT) |
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committer | jan.nijtmans <nijtmans@users.sourceforge.net> | 2016-11-16 15:22:26 (GMT) |
commit | 68111aa5bf7fc228dcfda8beb9de265734925b56 (patch) | |
tree | fed7fb157cbaef79f43a45b27379a0fd2d64e6ea /libtommath/bn_mp_mod.c | |
parent | 29606e4a7b43adb9f923fb5781d3b9a93d9ba1c8 (diff) | |
parent | 2adcff3e5ba6e09366ef4208ab81768803ba15bd (diff) | |
download | tcl-68111aa5bf7fc228dcfda8beb9de265734925b56.zip tcl-68111aa5bf7fc228dcfda8beb9de265734925b56.tar.gz tcl-68111aa5bf7fc228dcfda8beb9de265734925b56.tar.bz2 |
(experimental) Upgrade to libtommath 1.0 (actually by merging all changes between libtommath 0.42.0 and 1.0). Still to be tested thourougly, before doing anything with it.
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 + +/* $Source$ */ +/* $Revision$ */ +/* $Date$ */ |