diff options
Diffstat (limited to 'libtommath/bn_mp_add.c')
| -rw-r--r-- | libtommath/bn_mp_add.c | 30 |
1 files changed, 9 insertions, 21 deletions
diff --git a/libtommath/bn_mp_add.c b/libtommath/bn_mp_add.c index 3124ed8..dfa78de 100644 --- a/libtommath/bn_mp_add.c +++ b/libtommath/bn_mp_add.c @@ -1,21 +1,13 @@ #include "tommath_private.h" #ifdef BN_MP_ADD_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 */ /* high level addition (handles signs) */ -int mp_add(const mp_int *a, const mp_int *b, mp_int *c) +mp_err mp_add(const mp_int *a, const mp_int *b, mp_int *c) { - int sa, sb, res; + mp_sign sa, sb; + mp_err err; /* get sign of both inputs */ sa = a->sign; @@ -26,7 +18,7 @@ int mp_add(const mp_int *a, const mp_int *b, mp_int *c) /* both positive or both negative */ /* add their magnitudes, copy the sign */ c->sign = sa; - res = s_mp_add(a, b, c); + err = s_mp_add(a, b, c); } else { /* one positive, the other negative */ /* subtract the one with the greater magnitude from */ @@ -34,17 +26,13 @@ int mp_add(const mp_int *a, const mp_int *b, mp_int *c) /* the sign of the one with the greater magnitude. */ if (mp_cmp_mag(a, b) == MP_LT) { c->sign = sb; - res = s_mp_sub(b, a, c); + err = s_mp_sub(b, a, c); } else { c->sign = sa; - res = s_mp_sub(a, b, c); + err = s_mp_sub(a, b, c); } } - return res; + return err; } #endif - -/* ref: HEAD -> master, tag: v1.1.0 */ -/* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */ -/* commit time: 2019-01-28 20:32:32 +0100 */ |