1/* $NetBSD: bn_mp_abs.c,v 1.2 2017/01/28 21:31:47 christos Exp $ */ 2 3#include <tommath.h> 4#ifdef BN_MP_ABS_C 5/* LibTomMath, multiple-precision integer library -- Tom St Denis 6 * 7 * LibTomMath is a library that provides multiple-precision 8 * integer arithmetic as well as number theoretic functionality. 9 * 10 * The library was designed directly after the MPI library by 11 * Michael Fromberger but has been written from scratch with 12 * additional optimizations in place. 13 * 14 * The library is free for all purposes without any express 15 * guarantee it works. 16 * 17 * Tom St Denis, tomstdenis@gmail.com, http://libtom.org 18 */ 19 20/* b = |a| 21 * 22 * Simple function copies the input and fixes the sign to positive 23 */ 24int 25mp_abs (mp_int * a, mp_int * b) 26{ 27 int res; 28 29 /* copy a to b */ 30 if (a != b) { 31 if ((res = mp_copy (a, b)) != MP_OKAY) { 32 return res; 33 } 34 } 35 36 /* force the sign of b to positive */ 37 b->sign = MP_ZPOS; 38 39 return MP_OKAY; 40} 41#endif 42 43/* Source: /cvs/libtom/libtommath/bn_mp_abs.c,v */ 44/* Revision: 1.4 */ 45/* Date: 2006/12/28 01:25:13 */ 46