C++ Beginner; need help with IsPerfect >.>

Yeah, I picked up an old C++ textbook about a week ago and it seems pretty interesting. Using A Computer Science Tapestry by Astrachan. Anyway, I need help with the boolean, IsPerfect. I've gotten this far, but I just can't seem to fix it up.

Code:

---


bool IsPerfect(int n)
{       
        int sum = 0;
        int x;
        int divisor;

        x = n;

        while(x > 0)
        {
                divisor = x;


                if(n % divisor == 0)
                {
                        sum += divisor;
                }
                x--;
        }

        if(sum == n)
        {
                return true;
        }
        else
        {
                return false;
        }
}

---

Note: I am basing this off the textbook's example of IfPrime, so any help would be appreciated. Also running a second cpp file for the purpose of testing this boolean. Thank you.

x = n;

your

if(n % divisor == 0)
will be true

so you always start with the sum = n
adding other divisors
obviosly - you never get n as a result

Yeah, thanks. I actually got rid of X since it was actually pretty much just divisor (figured divisor served as a countdown or method to exit the loop as well). And instead of having X getting smaller towards 0, I changed it to the divisor getting bigger towards N or specified value. Thanks.