#include <iostream>

using namespace std;

int main ()

{

long int var = 20; // actual variable declaration.

long int *ip; // pointer variable

ip = &var; // store address of var in pointer variable

cout << "Value of var variable: ";

cout << var << endl;

// print the address stored in ip pointer variable

cout << "Address stored in ip variable: ";

cout << ip << endl;

// print the address stored in ip pointer variable

cout << "Address stored in ip variable: ";

cout << ip+1 << endl; // It become + 4 ( When it was int // if it was long int, it plus 4 automatically )

// access the value at the address available in pointer

cout << "Value of *ip variable: ";

cout << *ip << endl;

cout << "Value of *ip variable: ";

cout << *ip+1 << endl;

cout << "Value of *ip variable: ";

cout << *(ip+1) << endl; // It's null.. why?

return 0;

}