3 /* LibTomMath, multiple-precision integer library -- Tom St Denis
5 * LibTomMath is a library that provides multiple-precision
6 * integer arithmetic as well as number theoretic functionality.
8 * The library was designed directly after the MPI library by
9 * Michael Fromberger but has been written from scratch with
10 * additional optimizations in place.
12 * The library is free for all purposes without any express
15 * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com
18 /* d = a - b (mod c) */
20 mp_submod (mp_int * a, mp_int * b, mp_int * c, mp_int * d)
26 if ((res = mp_init (&t)) != MP_OKAY) {
30 if ((res = mp_sub (a, b, &t)) != MP_OKAY) {
34 res = mp_mod (&t, c, d);
40 /* $Source: /cvs/libtom/libtommath/bn_mp_submod.c,v $ */
41 /* $Revision: 1.3 $ */
42 /* $Date: 2006/03/31 14:18:44 $ */