floating point while loop

Question

int main()
{
    float x = 50;
    float y = 1/x;
    float result = y * x;

    float test = 41;
    float z = 1/test;
    float testRes = z * test;


    while (result == 1)
    {    
        x--;
    }

    printf("%f\n", x);
    printf("%.6f\n", testRes);
}

My while loop is infinite, it never ends, but it should end at 41 because when I test 41, it equals 0.99999404

Answer 1

result内环路永远不会改变，因此没有理由相信，一旦它开始，循环永远不会结束。

Answer 2

Result is of value type and is never changing. You have to use pointers for that.