diff options
Diffstat (limited to 'libtommath/bn_mp_lcm.c')
| -rw-r--r-- | libtommath/bn_mp_lcm.c | 37 |
1 files changed, 12 insertions, 25 deletions
diff --git a/libtommath/bn_mp_lcm.c b/libtommath/bn_mp_lcm.c index 8664503..c32b269 100644 --- a/libtommath/bn_mp_lcm.c +++ b/libtommath/bn_mp_lcm.c @@ -1,46 +1,37 @@ #include "tommath_private.h" #ifdef BN_MP_LCM_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 */ /* computes least common multiple as |a*b|/(a, b) */ -int mp_lcm(const mp_int *a, const mp_int *b, mp_int *c) +mp_err mp_lcm(const mp_int *a, const mp_int *b, mp_int *c) { - int res; + mp_err err; mp_int t1, t2; - if ((res = mp_init_multi(&t1, &t2, NULL)) != MP_OKAY) { - return res; + if ((err = mp_init_multi(&t1, &t2, NULL)) != MP_OKAY) { + return err; } /* t1 = get the GCD of the two inputs */ - if ((res = mp_gcd(a, b, &t1)) != MP_OKAY) { + if ((err = mp_gcd(a, b, &t1)) != MP_OKAY) { goto LBL_T; } /* divide the smallest by the GCD */ if (mp_cmp_mag(a, b) == MP_LT) { /* store quotient in t2 such that t2 * b is the LCM */ - if ((res = mp_div(a, &t1, &t2, NULL)) != MP_OKAY) { + if ((err = mp_div(a, &t1, &t2, NULL)) != MP_OKAY) { goto LBL_T; } - res = mp_mul(b, &t2, c); + err = mp_mul(b, &t2, c); } else { /* store quotient in t2 such that t2 * a is the LCM */ - if ((res = mp_div(b, &t1, &t2, NULL)) != MP_OKAY) { + if ((err = mp_div(b, &t1, &t2, NULL)) != MP_OKAY) { goto LBL_T; } - res = mp_mul(a, &t2, c); + err = mp_mul(a, &t2, c); } /* fix the sign to positive */ @@ -48,10 +39,6 @@ int mp_lcm(const mp_int *a, const mp_int *b, mp_int *c) LBL_T: mp_clear_multi(&t1, &t2, NULL); - return res; + return err; } #endif - -/* ref: HEAD -> master, tag: v1.1.0 */ -/* git commit: 08549ad6bc8b0cede0b357a9c341c5c6473a9c55 */ -/* commit time: 2019-01-28 20:32:32 +0100 */ |