Allow IPv6 address entry in tools>ping - Loosens valid character check
[tomato/davidwu.git] / release / src / router / dropbear / libtommath / bn_mp_clear.c
blob000bd065aaec88903b4ff0101a9e0b4c5bfefa9b
1 #include <tommath.h>
2 #ifdef BN_MP_CLEAR_C
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
13 * guarantee it works.
15 * Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com
18 /* clear one (frees) */
19 void
20 mp_clear (mp_int * a)
22 volatile mp_digit *p;
23 int len;
25 /* only do anything if a hasn't been freed previously */
26 if (a->dp != NULL) {
27 /* first zero the digits */
28 len = a->alloc;
29 p = a->dp;
30 while (len--) {
31 *p++ = 0;
34 /* free ram */
35 XFREE(a->dp);
37 /* reset members to make debugging easier */
38 a->dp = NULL;
39 a->alloc = a->used = 0;
40 a->sign = MP_ZPOS;
43 #endif
45 /* $Source: /cvs/libtom/libtommath/bn_mp_clear.c,v $ */
46 /* $Revision: 1.3 $ */
47 /* $Date: 2006/03/31 14:18:44 $ */