Answer to Question #316566 in C++ for Talat

Question

1) What is the output produced by the following code? Explain the code in detail.

int *p1, *p2; 

p1 = new int; 

p2 = new int;

*p1 = 10; 

*p2 = 20; 

cout << *p1 << " " << *p2 << endl; 

p1 = p2; 

cout << *p1 << " " << *p2 << endl; 

*p1 = 30;

cout << *p1 << " " << *p2 << endl;

How would the output change if you were to replace *p1 = 30; with the following? *p2 = 30;

Answer 1

#include <iostream>

using namespace std;

int main() {   

int *p1, *p2;

p1 = new int;

p2 = new int;

*p1 = 10;

*p2 = 20;

cout << *p1 << " " << *p2 << endl;

p1 = p2;

cout << *p1 << " " << *p2 << endl;

*p1 = 30;

cout << *p1 << " " << *p2 << endl;

   return 0;

}

If you replace *p1 = 30; with *p2 = 30;,   the output would be the same.