#ifdef _XOPEN_SOURCE

#include <ftw.h>

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

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

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

static void f()

{

T(struct FTW)

T(struct stat)

C(FTW_F)

C(FTW_D)

C(FTW_DNR)

C(FTW_DP)

C(FTW_NS)

C(FTW_SL)

C(FTW_SLN)

C(FTW_PHYS)

C(FTW_MOUNT)

C(FTW_DEPTH)

C(FTW_CHDIR)

C(S_IRWXU)

C(S_IRUSR)

C(S_IWUSR)

C(S_IXUSR)

C(S_IRWXG)

C(S_IRGRP)

C(S_IWGRP)

C(S_IXGRP)

C(S_IRWXO)

C(S_IROTH)

C(S_IWOTH)

C(S_IXOTH)

C(S_ISUID)

C(S_ISGID)

C(S_ISVTX)

C(S_IFMT)

C(S_IFBLK)

C(S_IFCHR)

C(S_IFIFO)

C(S_IFREG)

C(S_IFDIR)

C(S_IFLNK)

C(S_IFSOCK)

C(S_ISBLK(0))

C(S_ISCHR(0))

C(S_ISDIR(0))

C(S_ISFIFO(0))

C(S_ISREG(0))

C(S_ISLNK(0))

C(S_ISSOCK(0))

{

struct FTW x;

F(int, base)

F(int, level)

}

{

struct stat x;

F(dev_t, st_dev)

F(ino_t, st_ino)

F(mode_t, st_mode)

F(nlink_t, st_nlink)

F(uid_t, st_uid)

F(gid_t, st_gid)

F(dev_t, st_rdev)

F(off_t, st_size)

F(struct timespec, st_atim)

F(struct timespec, st_mtim)

F(struct timespec, st_ctim)

F(blksize_t, st_blksize)

F(blkcnt_t, st_blocks)

}

{int(*p)(const char*,int(*)(const char*,const struct stat*,int),int) = ftw;}

{int(*p)(const char*,int(*)(const char*,const struct stat*,int,struct FTW*),int,int) = nftw;}

}

#endif