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@iahu.ca, http://math.libtomcrypt.org
18 /* XOR two ints together */
20 mp_xor (mp_int * a, mp_int * b, mp_int * c)
25 if (a->used > b->used) {
26 if ((res = mp_init_copy (&t, a)) != MP_OKAY) {
32 if ((res = mp_init_copy (&t, b)) != MP_OKAY) {
39 for (ix = 0; ix < px; ix++) {
40 t.dp[ix] ^= x->dp[ix];