#include <sys/mman.h>

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

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

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

static void f()

{

T(mode_t)

T(off_t)

T(size_t)

C(PROT_EXEC)

C(PROT_NONE)

C(PROT_READ)

C(PROT_WRITE)

C(MAP_FIXED)

C(MAP_PRIVATE)

C(MAP_SHARED)

#ifdef _XOPEN_SOURCE

C(MS_ASYNC)

C(MS_INVALIDATE)

C(MS_SYNC)

#endif

C(MCL_CURRENT)

C(MCL_FUTURE)

{void *x = MAP_FAILED;}

C(POSIX_MADV_DONTNEED)

C(POSIX_MADV_NORMAL)

C(POSIX_MADV_RANDOM)

C(POSIX_MADV_SEQUENTIAL)

C(POSIX_MADV_WILLNEED)

//C(POSIX_TYPED_MEM_ALLOCATE)

//C(POSIX_TYPED_MEM_ALLOCATE_CONTIG)

//C(POSIX_TYPED_MEM_MAP_ALLOCATABLE)

//{

//struct posix_typed_mem_info x;

//F(size_t,posix_tmi_length)

//}

int(*p_mlock)(const void*,size_t) = mlock;

int(*p_mlockall)(int) = mlockall;

void*(*p_mmap)(void*,size_t,int,int,int,off_t) = mmap;

int(*p_mprotect)(void*,size_t,int) = mprotect;

#ifdef _XOPEN_SOURCE

int(*p_msync)(void*,size_t,int) = msync;

#endif

int(*p_munlock)(const void*,size_t) = munlock;

int(*p_munlockall)(void) = munlockall;

int(*p_munmap)(void*,size_t) = munmap;

int(*p_posix_madvise)(void*,size_t,int) = posix_madvise;

//int(*p_posix_mem_offset)(const void*restrict,size_t,off_t*restrict,size_t*restrict,int*restrict) = posix_mem_offset;

//int(*p_posix_typed_mem_get_info)(int,struct posix_typed_mem_info*) = posix_typed_mem_get_info;

//int(*p_posix_typed_mem_open)(const char*,int,int) = posix_typed_mem_open;

int(*p_shm_open)(const char*,int,mode_t) = shm_open;

int(*p_shm_unlink)(const char*) = shm_unlink;

}