tYSR20

218Part III: Introduction to ClassesThe destructor is invoked automatically when an object is destroyed, or inC++ parlance, when an object is destructed. That sounds sort of circular (“thedestructor is invoked when an object is destructed”), so I’ve avoided the termuntil now. For non-heap memory, you can also say, “when the object goes outof scope.” A local object goes out of scope when the function returns. A globalor static object goes out of scope when the program terminates.But what about heap memory? A pointer may go out of scope, but heapmemory doesn’t. By definition, it’s memory that is not part of a given function.An object that has been allocated off the heap is destructed when it’s returnedto the heap using the delete command. This is demonstrated in the followingDestructMembers program://// DestructMembers - this program both constructs and// destructs a set of data members//#include #include #include using namespace std;class Course{public:Course() { cout