Passing Objects By References, i'm lost on this aspect of the book!

[HarryW]

Well.... that isn't really an example of passing objects by reference at all... the only place a reference is used is in the copy constructor but that never gets called in this example

Okay well an alternative version of FunctionTwo() using references would be this:

const SimpleCat & FunctionTwo (const SimpleCat &theCat)
{
    cout << "Function Two. Returning...\n";
    cout << "Frisky is now " << theCat.GetAge();
    cout << " years old \n";
    // theCat.SetAge(8);   const!
    return theCat;
}

Not much different as you can see, but it's a little bit simpler than the pointers example. Basically you just treat the reference as if it was the original object, it works just the same.

The main difference is really how you would use it. You don't pass the address, you pass the actual object. Like this:

FunctionTwo(Frisky);

It can make things a little easier.