l_get_disk_element_index
if (err = l_get_disk_element_index(l_state, &front_index,
extern int l_get_disk_element_index(struct l_state_struct *, int *, int *);
extern int l_get_disk_element_index();
if ((err = l_get_disk_element_index(l_state, &front_index,
if (err = l_get_disk_element_index(l_state, &front_index,
if (err = l_get_disk_element_index(l_state, &front_index,
if (err = l_get_disk_element_index(l_state, &front_index,