tut50.cpp

// Revisiting Pointers: new and delete Keywords in CPP

#include <iostream>
using namespace std;

int main()
{
    // Basic example
    int a = 4;
    int *ptr = &a;
    cout << " The value of a is" << *(ptr) << endl;

    // new Operator
    float *p = new float(40);
    cout << " The value at address p is" << *(p) << endl;

    int *arr = new int[3];
    arr[0] = 10;
    arr[1] = 20;
    arr[2] = 30;
    cout << "The value of arr[0] is " << *(p) << endl;
    cout << "The value of arr[1] is " << *(p) << endl;
    cout << "The value of arr[2] is " << *(p) << endl;

    // delete Operator
  
    int *arr = new int[3];
    arr[0] = 10;
    arr[1] = 20;
    arr[2] = 30;
    delete[] arr;
    cout << "The value of arr[0] is " << arr[0] << endl;
    cout << "The value of arr[1] is " << arr[1] << endl;
    cout << "The value of arr[2] is " << arr[2] << endl;
    
    return 0;
}