diff options
Diffstat (limited to 'libtommath/bn_mp_submod.c')
| -rw-r--r-- | libtommath/bn_mp_submod.c | 39 |
1 files changed, 13 insertions, 26 deletions
diff --git a/libtommath/bn_mp_submod.c b/libtommath/bn_mp_submod.c index 9f95dfe..5ebd374 100644 --- a/libtommath/bn_mp_submod.c +++ b/libtommath/bn_mp_submod.c @@ -1,38 +1,25 @@ #include "tommath_private.h" #ifdef BN_MP_SUBMOD_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 */ /* d = a - b (mod c) */ -int mp_submod(const mp_int *a, const mp_int *b, const mp_int *c, mp_int *d) +mp_err mp_submod(const mp_int *a, const mp_int *b, const mp_int *c, mp_int *d) { - int res; - mp_int t; + mp_err err; + mp_int t; - - if ((res = mp_init(&t)) != MP_OKAY) { - return res; + if ((err = mp_init(&t)) != MP_OKAY) { + return err; } - if ((res = mp_sub(a, b, &t)) != MP_OKAY) { - mp_clear(&t); - return res; + if ((err = mp_sub(a, b, &t)) != MP_OKAY) { + goto LBL_ERR; } - res = mp_mod(&t, c, d); + err = mp_mod(&t, c, d); + +LBL_ERR: mp_clear(&t); - return res; + return err; } #endif - -/* ref: HEAD -> master, tag: v1.1.0 */ -/* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */ -/* commit time: 2019-01-28 20:32:32 +0100 */ |