Embedded Files
Pointers
pointer variables contain memory addresses as their values
They themselves do not contain any value, but the location of where the value is in memory
Variable name directly references a value but a pointer indirectly references a value
Referencing a value through a pointer is called indirection
Declaring Pointers
Initializing Pointers
Pointers should be initialized to nullptr or to a memory address when declared or in assignment
A pointer of value nullptr points to nothing and is called a "null pointer"
You should initialize all pointers to prevent pointing to an unknown or uninitialized area of memory
Pointer Operators
Can be used to create pointer values(&) and dereference pointers(*).
Address Operator -> &
The address operator is a unary operator
It obtains the memory address of its operand
Indirection Operator -> *
also refered to as the dereferencing operator
returns an Ivalue representing the object that its pointer operand points to
Page updated
Google Sites
Report abuse