Function bf_set

third-party/quickjs/src/quickjs/libbf.c:302–314

return 0 or BF_ST_MEM_ERROR */

/* return 0 or BF_ST_MEM_ERROR */
int bf_set(bf_t *r, const bf_t *a)
{
    if (r == a)
        return 0;
    if (bf_resize(r, a->len)) {
        bf_set_nan(r);
        return BF_ST_MEM_ERROR;
    }
    r->sign = a->sign;
    r->expn = a->expn;
    memcpy(r->tab, a->tab, a->len * sizeof(limb_t));
    return 0;
}

/* equivalent to bf_set(r, a); bf_delete(a) */
void bf_move(bf_t *r, bf_t *a)