Allow IPv6 address entry in tools>ping - Loosens valid character check
[tomato/davidwu.git] / release / src / router / dropbear / libtommath / bn_mp_shrink.c
blobe6760685578319a8def9a52fc6d96ae113e8c0dc
1 #include <tommath.h>
2 #ifdef BN_MP_SHRINK_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 /* shrink a bignum */
19 int mp_shrink (mp_int * a)
21 mp_digit *tmp;
22 if (a->alloc != a->used && a->used > 0) {
23 if ((tmp = OPT_CAST(mp_digit) XREALLOC (a->dp, sizeof (mp_digit) * a->used)) == NULL) {
24 return MP_MEM;
26 a->dp = tmp;
27 a->alloc = a->used;
29 return MP_OKAY;
31 #endif
33 /* $Source: /cvs/libtom/libtommath/bn_mp_shrink.c,v $ */
34 /* $Revision: 1.3 $ */
35 /* $Date: 2006/03/31 14:18:44 $ */