Mercurial > dropbear

comparison libtommath/bn_mp_cmp.c @ 1655:f52919ffd3b1

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79) * make key-generation compliant to FIPS 186.4 * fix includes in tommath_class.h * update fuzzcorpus instead of error-out * fixup fuzzing make-targets * update Makefile.in * apply necessary patches to ltm sources * clean-up not required ltm files * update to vanilla ltm 1.1.0 this already only contains the required files * remove set/get double
author Steffen Jaeckel <s_jaeckel@gmx.de>
date Mon, 16 Sep 2019 15:50:38 +0200
parents 8bba51a55704
children 1051e4eea25a
comparison
equal deleted inserted replaced
1654:cc0fc5131c5c 1655:f52919ffd3b1
1 #include <tommath_private.h> 1 #include "tommath_private.h"
2 #ifdef BN_MP_CMP_C 2 #ifdef BN_MP_CMP_C
3 /* LibTomMath, multiple-precision integer library -- Tom St Denis 3 /* LibTomMath, multiple-precision integer library -- Tom St Denis
4 * 4 *
5 * LibTomMath is a library that provides multiple-precision 5 * LibTomMath is a library that provides multiple-precision
6 * integer arithmetic as well as number theoretic functionality. 6 * integer arithmetic as well as number theoretic functionality.
7 * 7 *
8 * The library was designed directly after the MPI library by 8 * The library was designed directly after the MPI library by
9 * Michael Fromberger but has been written from scratch with 9 * Michael Fromberger but has been written from scratch with
10 * additional optimizations in place. 10 * additional optimizations in place.
11 * 11 *
12 * The library is free for all purposes without any express 12 * SPDX-License-Identifier: Unlicense
13 * guarantee it works.
14 *
15 * Tom St Denis, [email protected], http://libtom.org
16 */ 13 */
17 14
18 /* compare two ints (signed)*/ 15 /* compare two ints (signed)*/
19 int 16 int mp_cmp(const mp_int *a, const mp_int *b)
20 mp_cmp (mp_int * a, mp_int * b)
21 { 17 {
22 /* compare based on sign */ 18 /* compare based on sign */
23 if (a->sign != b->sign) { 19 if (a->sign != b->sign) {
24 if (a->sign == MP_NEG) { 20 if (a->sign == MP_NEG) {
25 return MP_LT; 21 return MP_LT;
26 } else { 22 } else {
27 return MP_GT; 23 return MP_GT;
28 } 24 }
29 } 25 }
30 26
31 /* compare digits */ 27 /* compare digits */
32 if (a->sign == MP_NEG) { 28 if (a->sign == MP_NEG) {
33 /* if negative compare opposite direction */ 29 /* if negative compare opposite direction */
34 return mp_cmp_mag(b, a); 30 return mp_cmp_mag(b, a);
35 } else { 31 } else {
36 return mp_cmp_mag(a, b); 32 return mp_cmp_mag(a, b);
37 } 33 }
38 } 34 }
39 #endif 35 #endif
40 36
41 /* ref: $Format:%D$ */ 37 /* ref: HEAD -> master, tag: v1.1.0 */
42 /* git commit: $Format:%H$ */ 38 /* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
43 /* commit time: $Format:%ai$ */ 39 /* commit time: 2019-01-28 20:32:32 +0100 */