#include <poll.h>

#define T(t) (t*)0;

#define F(t,n) {t *y = &x.;;}

#define C(n) switch(n){case n:;}

static void f()

{

T(nfds_t)

{

struct pollfd x;

F(int, fd)

F(short, events)

F(short, revents)

}

C(POLLIN)

C(POLLRDNORM)

C(POLLRDBAND)

C(POLLPRI)

C(POLLOUT)

C(POLLWRNORM)

C(POLLWRBAND)

C(POLLERR)

C(POLLHUP)

C(POLLNVAL)

{int(*p)(struct pollfd[],nfds_t,int) = poll;}

}