Pointers

Pointers and Memory Allocation

The C++ run-time system can create new objects for us.
When we create a new object, a memory alllocator finds a storage location for the object.
The memory allocator keeps a large storage area, called the heap, for that purpose.
The heap is a flexible pool of memory that can hold values of any type.
When you allocate a new heap object, the memory allocator tells where the object is located, by giving you the object's memory address.
To manipulate memory addresses, you need to use a pointer.