### view libtommath/bn_mp_lcm.c @ 1785:9026f976eee8

fuzz: work around fuzz_connect_remote() limitations
author Matt Johnston Sun, 06 Dec 2020 21:27:25 +0800 1051e4eea25a
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```#include "tommath_private.h"
#ifdef BN_MP_LCM_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis */

/* computes least common multiple as |a*b|/(a, b) */
mp_err mp_lcm(const mp_int *a, const mp_int *b, mp_int *c)
{
mp_err  err;
mp_int  t1, t2;

if ((err = mp_init_multi(&t1, &t2, NULL)) != MP_OKAY) {
return err;
}

/* t1 = get the GCD of the two inputs */
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 ((err = mp_div(a, &t1, &t2, NULL)) != MP_OKAY) {
goto LBL_T;
}
err = mp_mul(b, &t2, c);
} else {
/* store quotient in t2 such that t2 * a is the LCM */
if ((err = mp_div(b, &t1, &t2, NULL)) != MP_OKAY) {
goto LBL_T;
}
err = mp_mul(a, &t2, c);
}

/* fix the sign to positive */
c->sign = MP_ZPOS;

LBL_T:
mp_clear_multi(&t1, &t2, NULL);
return err;
}
#endif
```