/* C++ Programming, Example answer, Exercise 5, Sheet 4  */

/* Author: Rob Miller and William Knottenbelt
   Program last changed: 30th September 2001    */

#include <iostream>
#include <fstream>
using namespace std;

int main()
{
	char character;
	int integer;
	ofstream out_stream;
	ifstream in_stream;
	
	/* Create a file containing two integers */
	out_stream.open("Integers");
	out_stream << 123 << ' ' << 456;
	out_stream.close();	
	
	/* Attempt to read a character, then an integer,
	   then a character again, then an integer again,
	   from the file "Integers" just created.         */
	in_stream.open("Integers");
	in_stream >> character >> integer;
	cout << "character: '" << character << "'\n"; 
	cout << "integer: " << integer << "\n";
	in_stream >> character >> integer;
	cout << "character: '" << character << "'\n"; 
	cout << "integer: " << integer << "\n";
	in_stream.close();
	
	return 0;
}

/* 
THE OUTPUT OF THIS PROGRAM IS:

character: '1'
integer: 23
character: '4'
integer: 56

THIS IS BECAUSE READING A CHARACTER FROM "in_stream" MOVES THE POSITION
OF THE STREAM RELATIVE TO THE FILE ALONG BY ONE CHARACTER, AND NUMBERS SUCH 
AS 123 ARE REPRESENTED AS A SEQUENCE OF CHARACTERS '1', '2', '3'. WHEN
ATTEMPTING TO READ AN INTEGER, THE PROGRAM CONTINUES READING IN INDIVIDUAL
DIGITS UNTIL IT HITS A WHITE SPACE.   
*/