1#include <tommath.h>
2#ifdef BN_MP_ADDMOD_C
3/* LibTomMath, multiple-precision integer library -- Tom St Denis
4 *
5 * LibTomMath is a library that provides multiple-precision
6 * integer arithmetic as well as number theoretic functionality.
7 *
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.
11 *
12 * The library is free for all purposes without any express
13 * guarantee it works.
14 *
15 * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
16 */
17
18/* d = a + b (mod c) */
19int
20mp_addmod (mp_int * a, mp_int * b, mp_int * c, mp_int * d)
21{
22  int     res;
23  mp_int  t;
24
25  if ((res = mp_init (&t)) != MP_OKAY) {
26    return res;
27  }
28
29  if ((res = mp_add (a, b, &t)) != MP_OKAY) {
30    mp_clear (&t);
31    return res;
32  }
33  res = mp_mod (&t, c, d);
34  mp_clear (&t);
35  return res;
36}
37#endif
38
39/* $Source$ */
40/* $Revision$ */
41/* $Date$ */
42