diff options
Diffstat (limited to 'libtommath/bn_mp_neg.c')
| -rw-r--r-- | libtommath/bn_mp_neg.c | 27 |
1 files changed, 7 insertions, 20 deletions
diff --git a/libtommath/bn_mp_neg.c b/libtommath/bn_mp_neg.c index ff9ef30..264d900 100644 --- a/libtommath/bn_mp_neg.c +++ b/libtommath/bn_mp_neg.c @@ -1,28 +1,19 @@ #include "tommath_private.h" #ifdef BN_MP_NEG_C -/* LibTomMath, multiple-precision integer library -- Tom St Denis - * - * LibTomMath is a library that provides multiple-precision - * integer arithmetic as well as number theoretic functionality. - * - * The library was designed directly after the MPI library by - * Michael Fromberger but has been written from scratch with - * additional optimizations in place. - * - * SPDX-License-Identifier: Unlicense - */ +/* LibTomMath, multiple-precision integer library -- Tom St Denis */ +/* SPDX-License-Identifier: Unlicense */ /* b = -a */ -int mp_neg(const mp_int *a, mp_int *b) +mp_err mp_neg(const mp_int *a, mp_int *b) { - int res; + mp_err err; if (a != b) { - if ((res = mp_copy(a, b)) != MP_OKAY) { - return res; + if ((err = mp_copy(a, b)) != MP_OKAY) { + return err; } } - if (mp_iszero(b) != MP_YES) { + if (!MP_IS_ZERO(b)) { b->sign = (a->sign == MP_ZPOS) ? MP_NEG : MP_ZPOS; } else { b->sign = MP_ZPOS; @@ -31,7 +22,3 @@ int mp_neg(const mp_int *a, mp_int *b) return MP_OKAY; } #endif - -/* ref: HEAD -> master, tag: v1.1.0 */ -/* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */ -/* commit time: 2019-01-28 20:32:32 +0100 */ |