#include 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; }