Advanced C++ Topics

Automatic Memory Management

A Department object contains a pointer to an Employee object.
When the Department object is destroyed (goes out of scope, for example) the Employee object is leaked.
In C++, you can define a destructor, a function that is called when an object is about to go out of scope.
The destructor for the Department class should delete the receptionist pointer.
```
Department::~Department()
{
   delete receptionist;
}
```
Note that calling delete on a NULL pointer is safe, so you don't need a special case for that situation.