# File src/ISAAC.rb, line 47
                def rand(*num)
                        if (@randcnt == 1)
                                isaac
                                @randcnt = 256
                        end
                        @randcnt -= 1
                        if num[0].to_i > 0
                                @randrsl[@randcnt].modulo(num[0])
                        else
                                ".#{@randrsl[@randcnt]}".to_f
                        end
                end