# File biopieces.rb, line 417
  def options_check_uint(cast)
    if cast[:type] == 'uint' and @options.has_key? cast[:long]
      unless @options[cast[:long]].is_a? Integer and @options[cast[:long]] >= 0
        raise ArgumentError, "Argument to --#{cast[:long]} must be an unsigned integer, not '#{@options[cast[:long]]}'"
      end
    end
  end