04. Compiler generated functions

#include <iostream>
// If the compiler generated functions are not used, they are not generated
using namespace std;

class dog {};

// is equivalent to

class dog
{
public:
    dog(const dog& rhs) { } // copy constructor

    dog& operator= (const dog& rhs) { }; // member by member copying

    dog() { }; // 1. Call base class's default constructor
               // 2. Call data member's default constructor
    ~dog() { }; // 1. Call base class's default destructor
               // 2. Call data member's default destructor
};