#include <tommath.h>
#ifdef BN_MP_SHRINK_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis
 *
 * LibTomMath is a library that provides multiple-precision
 * integer arithmetic as well as number theoretic functionality.
 *
 * The library was designed directly after the MPI library by
 * Michael Fromberger but has been written from scratch with
 * additional optimizations in place.
 *
 * The library is free for all purposes without any express
 * guarantee it works.
 *
 * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
 */

/* shrink a bignum */
int mp_shrink(mp_int * a)
{
	mp_digit *tmp;
	if (a->alloc != a->used && a->used > 0) {
		if ((tmp =
		     OPT_CAST(mp_digit) XREALLOC(a->dp,
						 sizeof(mp_digit) * a->used)) ==
		    NULL) {
			return MP_MEM;
		}
		a->dp = tmp;
		a->alloc = a->used;
	}
	return MP_OKAY;
}
#endif

/* $Source: /cvs/libtom/libtommath/bn_mp_shrink.c,v $ */
/* $Revision: 1.4 $ */
/* $Date: 2006/12/28 01:25:13 $ */