HIL_IDD_NUM_AXES_PER_SET
ptr->naxes = HIL_IDD_NUM_AXES_PER_SET(*idd);
HIL_IDD_NUM_AXES_PER_SET(*idd)) {
2 * !(HIL_IDD_NUM_AXES_PER_SET(header_packet))) + \
2 * HIL_IDD_NUM_AXES_PER_SET(header_packet) * \
(HIL_IDD_NUM_AXES_PER_SET(*(header_ptr)) <= __axnum)) ? 0 : \