big_free
big_free(apowers[i], (2 * nlen + 1) * sizeof (double));
big_free(d32r, nlen * sizeof (double));
big_free(d16r, (2 * nlen + 1) * sizeof (double));
big_free(prod, (nlen + 1) * sizeof (uint32_t));
big_free(nint, nlen * sizeof (uint32_t));
big_free(dt, (4 * nlen + 2) * sizeof (double));
big_free(dn, nlen * sizeof (double));
big_free(number->value, BIGNUM_WORDSIZE * number->size);