The delete command is used to free the allocated memory created by the new command. Using the person class example from above, we can create a pointer to the object, and allocate memory for the object by writing:
person *bob= new person;
The asterisk before bob indicates that this is a pointer to an object of class person. The new person portion of the command allocates enough memory to contain a person sized object.
To release this memory location we type: delete bob;. The delete command will not get rid of the pointer variable *bob, just the memory allocated for the object that bob points to.
C++ also provides a method for an object to find its own location. The this keyword is a pointer to the current object. If an object needed to pass its location to another object, it could do so by using the this pointer. Example:
object2->find_me( this );
The find_me function in object2 would receive the address of the calling object..