# File lib/cfpropertylist/rbBinaryCFPropertyList.rb, line 494
    def num_to_binary(value)
      @object_table[@written_object_count] =
        if value.is_a?(CFInteger)
          int_to_binary(value.value)
        else
          real_to_binary(value.value)
        end

      @written_object_count += 1
      @written_object_count - 1
    end