# File lib/archive/support/iowindow.rb, line 48
  def window_size=(window_size)
    unless window_size.respond_to?(:to_int) then
      raise TypeError, "can't convert #{window_size.class} into Integer"
    end
    window_size = window_size.to_int
    raise ArgumentError, 'non-positive window size given' if window_size < 0

    @window_size = window_size
  end