memoryTest.cpp

#include <iostream>

using namespace std;

int
main() {
  int x=1;
  char c=0xF;
  double n=16;
  int *ptr;  //pointer to an integer

  //print some stuff out
  cout << "x: " << sizeof x << endl;
  cout << "c: " << sizeof c << endl;
  cout << "n: " << sizeof n << endl;

  //Look at the addresses
  cout << "x: " << &x << endl;
  cout << "c: " << (void*)(&c) << endl;
  cout << "n: " << &n << endl;

  //set ptr to the address of x
  ptr = &x;

  cout << ptr << endl;
  cout << *ptr << endl;
  *ptr = 9;

  cout << x << endl;
  return 0;
}