#include <sys/mman.h>
#define T(t) (t*)0;
#define F(t,n) {t *y = &x.n;}
#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)

#ifdef X_TYM
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)(const void*restrict,size_t,off_t*restrict,size_t*restrict,int*restrict) = posix_mem_offset;
int(*p)(int,struct posix_typed_mem_info*) = posix_typed_mem_get_info;
int(*p)(const char*,int,int) = posix_typed_mem_open;
#endif

{int(*p)(const void*,size_t) = mlock;}
{int(*p)(int) = mlockall;}
{void*(*p)(void*,size_t,int,int,int,off_t) = mmap;}
{int(*p)(void*,size_t,int) = mprotect;}
#ifdef _XOPEN_SOURCE
{int(*p)(void*,size_t,int) = msync;}
#endif
{int(*p)(const void*,size_t) = munlock;}
{int(*p)(void) = munlockall;}
{int(*p)(void*,size_t) = munmap;}
{int(*p)(void*,size_t,int) = posix_madvise;}
{int(*p)(const char*,int,mode_t) = shm_open;}
{int(*p)(const char*) = shm_unlink;}
}