/src/dropbear/libtommath/bn_mp_abs.c
Line | Count | Source (jump to first uncovered line) |
1 | | #include "tommath_private.h" |
2 | | #ifdef BN_MP_ABS_C |
3 | | /* LibTomMath, multiple-precision integer library -- Tom St Denis */ |
4 | | /* SPDX-License-Identifier: Unlicense */ |
5 | | |
6 | | /* b = |a| |
7 | | * |
8 | | * Simple function copies the input and fixes the sign to positive |
9 | | */ |
10 | | mp_err mp_abs(const mp_int *a, mp_int *b) |
11 | 0 | { |
12 | 0 | mp_err err; |
13 | | |
14 | | /* copy a to b */ |
15 | 0 | if (a != b) { |
16 | 0 | if ((err = mp_copy(a, b)) != MP_OKAY) { |
17 | 0 | return err; |
18 | 0 | } |
19 | 0 | } |
20 | | |
21 | | /* force the sign of b to positive */ |
22 | 0 | b->sign = MP_ZPOS; |
23 | |
|
24 | 0 | return MP_OKAY; |
25 | 0 | } |
26 | | #endif |