#include <sys/wait.h>

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

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

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

static void f()

{

T(id_t)

T(pid_t)

T(siginfo_t)

C(WEXITSTATUS(0))

C(WIFEXITED(0))

C(WIFSIGNALED(0))

C(WIFSTOPPED(0))

C(WNOHANG)

C(WSTOPSIG(0))

C(WTERMSIG(0))

C(WUNTRACED)

#ifdef _XOPEN_SOURCE

C(WCONTINUED)

C(WIFCONTINUED(0))

#endif

C(WEXITED)

C(WNOWAIT)

C(WSTOPPED)

{idtype_t x = P_ALL;}

{idtype_t x = P_PGID;}

{idtype_t x = P_PID;}

{pid_t(*p)(int*) = wait;}

{int(*p)(idtype_t,id_t,siginfo_t*,int) = waitid;}

{pid_t(*p)(pid_t,int*,int) = waitpid;}

}