Thread: return values

As a return sequence you usually use return 0. In other codes I've seen return 1, and return -1. What does return 1 do? Please explain it to me. I've looked in the FAQ but it had no reference on return values.

Yes! finally something I can help with. anyways, return values are up to the programmer to decide what to do with. If you called a function from within another function, you could check the return value. This can be very useful in a lot of situations. You would be able to do something like this:

Code:

int Add(int number1, int number2)
{
    return (number1+number2);
}

int main()
{
    cout<<Add(1, 2);
    return 0;
}

I might have misunderstood your question though, if you meant why someone would return something other than 0 from main, I am not sure about that.