// File: ex5-8.cpp

#include <iostream>
#include <string>
using namespace std;

class Cat;
class Dog
{
    string name;
public:
    void bark(const Cat&) const;
    Dog(const string& n) : name(n) { }
    friend class Cat;
};
class Cat
{
    string name;
public:
    void meow(const Dog&) const;
    Cat(const string& n) : name(n) { }
    friend void Dog::bark(const Cat&) const;
};

void Dog::bark(const Cat& c) const
{
    for (size_t i = 0; i < c.name.size(); i++) cout << " woof ";
    cout << endl;
}
void Cat::meow(const Dog& d) const
{
    for (size_t i = 0; i < d.name.size(); i++) cout << " meow ";
    cout << endl;
}


int main()
{
    Dog bart("Bart");
    Cat socks("Socks");
    bart.bark(socks);
    socks.meow(bart);
}