ecp_nistz256_bignum_to_field_elem
if (!ecp_nistz256_bignum_to_field_elem(point_x, point->X) || !ecp_nistz256_bignum_to_field_elem(point_y, point->Y) || !ecp_nistz256_bignum_to_field_elem(point_z, point->Z)) {
if (!ecp_nistz256_bignum_to_field_elem(t, x)) {
if (!ecp_nistz256_bignum_to_field_elem(temp[0].X, point[i]->X)
|| !ecp_nistz256_bignum_to_field_elem(temp[0].Y, point[i]->Y)
|| !ecp_nistz256_bignum_to_field_elem(temp[0].Z, point[i]->Z)) {
if (!ecp_nistz256_bignum_to_field_elem(temp.X, P->X) || !ecp_nistz256_bignum_to_field_elem(temp.Y, P->Y)) {