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comparison libtommath/bn_mp_complement.c @ 1692:1051e4eea25a

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Update LibTomMath to 1.2.0 (#84) * update C files * update other files * update headers * update makefiles * remove mp_set/get_double() * use ltm 1.2.0 API * update ltm_desc * use bundled tommath if system-tommath is too old * XMALLOC etc. were changed to MP_MALLOC etc.
author Steffen Jaeckel <s@jaeckel.eu>
date Tue, 26 May 2020 17:36:47 +0200
parents f52919ffd3b1
children
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1691:2d3745d58843 1692:1051e4eea25a
1 #include "tommath_private.h" 1 #include "tommath_private.h"
2 #ifdef BN_MP_COMPLEMENT_C 2 #ifdef BN_MP_COMPLEMENT_C
3 /* LibTomMath, multiple-precision integer library -- Tom St Denis 3 /* LibTomMath, multiple-precision integer library -- Tom St Denis */
4 * 4 /* SPDX-License-Identifier: Unlicense */
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 * SPDX-License-Identifier: Unlicense
13 */
14 5
15 /* b = ~a */ 6 /* b = ~a */
16 int mp_complement(const mp_int *a, mp_int *b) 7 mp_err mp_complement(const mp_int *a, mp_int *b)
17 { 8 {
18 int res = mp_neg(a, b); 9 mp_err err = mp_neg(a, b);
19 return (res == MP_OKAY) ? mp_sub_d(b, 1uL, b) : res; 10 return (err == MP_OKAY) ? mp_sub_d(b, 1uL, b) : err;
20 } 11 }
21 #endif 12 #endif
22
23 /* ref: HEAD -> master, tag: v1.1.0 */
24 /* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
25 /* commit time: 2019-01-28 20:32:32 +0100 */