Reference vs Pointer

Differences

POINTER	REFERENCE
Is a variable that holds memory address of another variable. // int *ptr = &i;	Is an alias i.e. another name for an already existing variable. // int &ref = i;
Can point nowhere e.g. NULL	Must refer to an object
Can be re-assigned any number of times	Cannot be re-assigned after binding
Can take the address of a pointer	Can’t take the address of a reference