1 #include <tommath.h> 2 #ifdef BN_MP_SHRINK_C 3 /* LibTomMath, multiple-precision integer library -- Tom St Denis 4 * 5 * LibTomMath is a library that provides multiple-precision 6 * integer arithmetic as well as number theoretic functionality. 7 * 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. 11 * 12 * The library is free for all purposes without any express 13 * guarantee it works. 14 * 15 * Tom St Denis, tomstdenis (at) gmail.com, http://math.libtomcrypt.com 16 */ 17 18 /* shrink a bignum */ 19 int mp_shrink (mp_int * a) 20 { 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; 25 } 26 a->dp = tmp; 27 a->alloc = a->used; 28 } 29 return MP_OKAY; 30 } 31 #endif 32 33 /* $Source: /cvs/libtom/libtommath/bn_mp_shrink.c,v $ */ 34 /* $Revision: 1.3 $ */ 35 /* $Date: 2006/03/31 14:18:44 $ */ 36
