type
  File = record
    fd: Int
  end

  Cell#[T] = record
    held: T
  end

var
  files: Cell#[^File]
  bytes: Cell#[^Word8]
  f: File
  b: Word8

proc store#[T](target: ^Cell#[T]; value: T)
begin
  target^.held := value
return

proc relay#[T](target: ^Cell#[T]; value: T)
begin
  store(target, value)
return

program()
begin
  store(@files, @f);
  relay(@bytes, @b);
  store(@files, nil)
return 0u8

end.