/* Return a pointer to the interrogate tcw associated with the specified tcw or NULL if there is no associated interrogate tcw.  */
struct tcw* tcw_get_intrg(struct tcw *tcw)
/* Return a pointer to the interrogate tcw associated with the specified tcw or NULL if there is no associated interrogate tcw.  */
struct tcw* tcw_get_intrg(struct tcw *tcw)
{
	return (struct tcw *) ((addr_t) tcw->intrg);
}