1 /*	$NetBSD: bn_mp_init.c,v 1.1.1.2 2014/04/24 12:45:31 pettai Exp $	*/
2 
3 #include <tommath.h>
4 #ifdef BN_MP_INIT_C
5 /* LibTomMath, multiple-precision integer library -- Tom St Denis
6  *
7  * LibTomMath is a library that provides multiple-precision
8  * integer arithmetic as well as number theoretic functionality.
9  *
10  * The library was designed directly after the MPI library by
11  * Michael Fromberger but has been written from scratch with
12  * additional optimizations in place.
13  *
14  * The library is free for all purposes without any express
15  * guarantee it works.
16  *
17  * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
18  */
19 
20 /* init a new mp_int */
mp_init(mp_int * a)21 int mp_init (mp_int * a)
22 {
23   int i;
24 
25   /* allocate memory required and clear it */
26   a->dp = OPT_CAST(mp_digit) XMALLOC (sizeof (mp_digit) * MP_PREC);
27   if (a->dp == NULL) {
28     return MP_MEM;
29   }
30 
31   /* set the digits to zero */
32   for (i = 0; i < MP_PREC; i++) {
33       a->dp[i] = 0;
34   }
35 
36   /* set the used to zero, allocated digits to the default precision
37    * and sign to positive */
38   a->used  = 0;
39   a->alloc = MP_PREC;
40   a->sign  = MP_ZPOS;
41 
42   return MP_OKAY;
43 }
44 #endif
45 
46 /* Source: /cvs/libtom/libtommath/bn_mp_init.c,v  */
47 /* Revision: 1.4  */
48 /* Date: 2006/12/28 01:25:13  */
49