/*
   testpointer1.cpp
   CIS 150
   David Klick
   6/26/08
   
   Simple pointer demonstration.
*/

#include <iostream>
using std::cin;
using std::cout;

void cont();

int main() {
   int n;
   // create a pointer and make it point to n
   int *ptr = &n;
   
   n = 7;
   cout << n << '\n';

   // equivalent to: n = n + 1
   *ptr = *ptr + 1;
   cout << n << '\n';

   cont();
   return 0;
}

/*
   void cont();
   
   Arguments: none
   
   Returns: nothing
   
   Clears input buffer and pauses waiting for user 
   to press Enter.
*/
void cont() {
   if (cin.rdbuf()->sungetc() != -1 && cin.get() != '\n') cin.ignore(80,'\n');
   cout << "Press enter to continue...";
   cin.get();
}