POINTER
1. Its not necessary to initialize the pointer at the time of declaration. Like
Code:
int a=10;
int *p=&a; //it is not necessary
Another way is:
Code:
int a=10;
int *p;
p=&a;
2. You can create the array of pointer.
3. You can assign NULL to the pointer like
Code:
int *p=NULL; //valid
4. You can use pointer to pointer.
REFERENCE:
1. Its necessary to initialize the Reference at the time of declaration. Like
Code:
int &a=10
int &a; //Error here but not in case of pointer.
2. You can not create the Array of reference.
3. You can not assign NULL to the reference like.
Code:
int &a=NULL; //Error
4. You can not use reference to reference.
