A pointer is a variable that stores the memory address of another variable. It allows direct manipulation of memory. Declaration and initialization of a pointer looks like this:

• int : specifies the base type of the variable that the pointer will point to . In this case, it's an integer;

• * : called dereference operator, returns the value stored at the address held by a pointer;

• p_Name : the name of the pointer variable. You can choose any valid variable name;

• nullptr : is a keyword that represents a null pointer, indicating that it is empty and doesn't point to anything .

Note

Commonly, pointers are named with a prefix p_ as a naming convention signifying that the variable is a pointer.