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comparison libtommath/bn_mp_cmp_d.c @ 1655:f52919ffd3b1

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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_D_C 2 #ifdef BN_MP_CMP_D_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 a digit */ 15 /* compare a digit */
19 int mp_cmp_d(mp_int * a, mp_digit b) 16 int mp_cmp_d(const mp_int *a, mp_digit b)
20 { 17 {
21 /* compare based on sign */ 18 /* compare based on sign */
22 if (a->sign == MP_NEG) { 19 if (a->sign == MP_NEG) {
23 return MP_LT; 20 return MP_LT;
24 } 21 }
25 22
26 /* compare based on magnitude */ 23 /* compare based on magnitude */
27 if (a->used > 1) { 24 if (a->used > 1) {
28 return MP_GT; 25 return MP_GT;
29 } 26 }
30 27
31 /* compare the only digit of a to b */ 28 /* compare the only digit of a to b */
32 if (a->dp[0] > b) { 29 if (a->dp[0] > b) {
33 return MP_GT; 30 return MP_GT;
34 } else if (a->dp[0] < b) { 31 } else if (a->dp[0] < b) {
35 return MP_LT; 32 return MP_LT;
36 } else { 33 } else {
37 return MP_EQ; 34 return MP_EQ;
38 } 35 }
39 } 36 }
40 #endif 37 #endif
41 38
42 /* ref: $Format:%D$ */ 39 /* ref: HEAD -> master, tag: v1.1.0 */
43 /* git commit: $Format:%H$ */ 40 /* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */
44 /* commit time: $Format:%ai$ */ 41 /* commit time: 2019-01-28 20:32:32 +0100 */