#include <sys/shm.h>

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

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

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

static void f()

{

T(shmatt_t)

T(pid_t)

T(size_t)

T(time_t)

C(SHM_RDONLY)

C(SHM_RND)

C(SHMLBA)

{

struct shmid_ds x;

F(struct ipc_perm, shm_perm)

F(size_t,shm_segsz)

F(pid_t, shm_lpid)

F(pid_t, shm_cpid)

F(shmatt_t,shm_nattch)

F(time_t,shm_atime)

F(time_t,shm_dtime)

F(time_t,shm_ctime)

}

void*(*p_shmat)(int,const void*,int) = shmat;

int(*p_shmctl)(int,int,struct shmid_ds*) = shmctl;

int(*p_shmdt)(const void*) = shmdt;

int(*p_shmget)(key_t,size_t,int) = shmget;

T(uid_t)

T(gid_t)

T(mode_t)

T(key_t)

{

struct ipc_perm x;

F(uid_t,uid)

F(gid_t,gid)

F(uid_t,cuid)

F(gid_t,cgid)

F(mode_t, mode)

}

C(IPC_CREAT)

C(IPC_EXCL)

C(IPC_NOWAIT)

C(IPC_PRIVATE)

C(IPC_RMID)

C(IPC_SET)

C(IPC_STAT)

key_t(*p_ftok)(const char*,int) = ftok;

}