#include <sys/statvfs.h>

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

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

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

static void f()

{

T(fsblkcnt_t)

T(fsfilcnt_t)

{

struct statvfs x;

F(unsigned long, f_bsize)

F(unsigned long, f_frsize)

F(fsblkcnt_t,f_blocks)

F(fsblkcnt_t,f_bfree)

F(fsblkcnt_t,f_bavail)

F(fsfilcnt_t,f_files)

F(fsfilcnt_t,f_ffree)

F(fsfilcnt_t,f_favail)

F(unsigned long, f_fsid)

F(unsigned long, f_flag)

F(unsigned long, f_namemax)

}

C(ST_RDONLY)

C(ST_NOSUID)

{int(*p)(int,struct statvfs*) = fstatvfs;}

{int(*p)(const char*restrict,struct statvfs*restrict) = statvfs;}

}