function test()
    for i in 1:50
        function hypot(x,y)
            x = abs(x)
            y = abs(y)
            if x > y
                r = y/x
                return x*sqrt(1+r*r)
            end
            if y == 0
                return zero(x)
            end
            r = x/y
            return y*sqrt(1+r*r)
        end
    end
end
