dropbear/libtommath/bn_mp_abs.c
Steffen Jaeckel b4bd23b4d2
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.
2020-05-26 23:36:47 +08:00

27 lines
519 B
C

#include "tommath_private.h"
#ifdef BN_MP_ABS_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/* b = |a|
*
* Simple function copies the input and fixes the sign to positive
*/
mp_err mp_abs(const mp_int *a, mp_int *b)
{
mp_err err;
/* copy a to b */
if (a != b) {
if ((err = mp_copy(a, b)) != MP_OKAY) {
return err;
}
}
/* force the sign of b to positive */
b->sign = MP_ZPOS;
return MP_OKAY;
}
#endif