Operators --
For using pointers, we use the ampersand (&)
or the star operator (*) to say that
we do not want a variable’s value, instead we want its memory
location. These are the ways to declare a pointer. To
assign a reference to x in variable
xPointer we would say:
xPointer = &x;
// 'xPointer' points to the memory
location of 'x'
Now we know how to create/define pointers and how to
assign values to them, but once we assign a value to a pointer,
how do we read it? We can read the memory location of a pointer
just by looking at its value. Continuing our example:
cout << xPointer;
// Outputs the memory location of x
// (i.e.0x0012FF78)
What if we want to retrieve the value of whatever the pointer
is referencing? The easiest way is through the star operator. For
example:
cout << *xPointer;
// Outputs value of what xPointer is
referencing
