libtommath/bn_mp_complement.c
2018-09-23 10:41:27 +02:00

27 lines
752 B
C

#include "tommath_private.h"
#ifdef BN_MP_COMPLEMENT_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.
*/
/* b = ~a */
int mp_complement(const mp_int *a, mp_int *b)
{
int res = mp_neg(a, b);
return (res == MP_OKAY) ? mp_sub_d(b, 1uL, b) : res;
}
#endif
/* ref: $Format:%D$ */
/* git commit: $Format:%H$ */
/* commit time: $Format:%ai$ */