tommath/bn_mp_shrink.c
Tom St Denis 079b0f65a9 Getting ready for v0.43.0 release
Also updated my email address...

Signed-off-by: Tom St Denis <tstdenis82@gmail.com>
2015-10-30 17:55:29 -04:00

41 lines
940 B
C

#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, tstdenis82@gmail.com, http://libtom.org
*/
/* shrink a bignum */
int mp_shrink (mp_int * a)
{
mp_digit *tmp;
int used = 1;
if(a->used > 0)
used = a->used;
if (a->alloc != used) {
if ((tmp = OPT_CAST(mp_digit) XREALLOC (a->dp, sizeof (mp_digit) * used)) == NULL) {
return MP_MEM;
}
a->dp = tmp;
a->alloc = used;
}
return MP_OKAY;
}
#endif
/* $Source$ */
/* $Revision$ */
/* $Date$ */