# File lib/facets/more/progressbar.rb, line 211
  def set (count)
    if count < 0
      raise "invalid count less than zero: #{count}"
    elsif count > @total
      if @total_overflow
        @total = count + 1
      else
        raise "invalid count greater than total: #{count}"
      end
    end
    @current = count
    show_progress
    @previous = @current
  end