// Project pointers.cpp

// Show how to use pointers
// for primitive variables.

#include <iostream.h>
#include <stdlib.h>

int main()
{
    // x, p, and q are all automatically
    // allocated on the stack.
    int x;
    int *p = &x;
    int *q;

    x = 5;

    cout << x << " " << &x << " ";
    cout << p << " " << *p << " ";
    cout << &p << endl;

    q = p;
    *q = 7;

    cout << x << " " << &x << " ";
    cout << p << " " << *p << " ";
    cout << q << " " << *q << endl;
    cout << &p << " " << &q << endl;

    // Create dynamic memory on the heap.
    p = new int;
    *p = 9;
    cout << p << " " << *p <<
          " " << &p << endl;

    return EXIT_SUCCESS;
}

// Output:
5 0x0012FF7C 0x0012FF7C 5 0x0012FF78
7 0x0012FF7C 0x0012FF7C 7 0x0012FF7C 7 
0x0012FF78 0x0012FF74
0x00301B80 9 0x0012FF78