passing objects as arguments

Question

Can anyone give example about passing an object of a class as argument to the function of same class.

Answer 1

class Unicorn {
    void Eat(Unicorn other_unicorn) { 
        // implementation omitted to keep this answer family-friendly
    }
};

int main() {
    Unicorn glitter;
    Unicorn dazzle;
    glitter.Eat(dazzle); // mmmm, yummy
}

Note that Dazzle is still alright because we made a copy of him and fed the copy to Glitter.

Answer 2

class X
{
public:
    void func(X x) {}
};

int main()
{
    X a,b;
    a.func(b);
}