1/*	$NetBSD: bn_mp_clear.c,v 1.1.1.1 2011/04/13 18:14:54 elric Exp $	*/
2
3#include <tommath.h>
4#ifdef BN_MP_CLEAR_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/* clear one (frees)  */
21void
22mp_clear (mp_int * a)
23{
24  int i;
25
26  /* only do anything if a hasn't been freed previously */
27  if (a->dp != NULL) {
28    /* first zero the digits */
29    for (i = 0; i < a->used; i++) {
30        a->dp[i] = 0;
31    }
32
33    /* free ram */
34    XFREE(a->dp);
35
36    /* reset members to make debugging easier */
37    a->dp    = NULL;
38    a->alloc = a->used = 0;
39    a->sign  = MP_ZPOS;
40  }
41}
42#endif
43
44/* Source: /cvs/libtom/libtommath/bn_mp_clear.c,v */
45/* Revision: 1.4 */
46/* Date: 2006/12/28 01:25:13 */
47