// Mr. Minich
// Computer Science Using C++
// Ch. 9 Demo Program #2
// January 30, 2000 
// Purpose - to illustrate the use of a function that does return a value 
//				but that does not have any parameters.

#include <iostream.h>

int obtainFavoriteNumber();	// obtains user's input of a favorite number

// this function does not accept any parameters but it does
// return an integer (int) value

int main()
{          
	int sum = 0;		        // sum of both favorite numbers
	int myFavNum = 10;	        // programmer's favorite number
	int yourFavoriteNumber = 0;	// user's favorite number

	// these two variables are local variables accessible only within
	// the main function.

	cout << "My favorite number is " << myFavNum << endl;

	yourFavoriteNumber = obtainFavoriteNumber();

	// This statement is an assignment statement that makes a call to
	// the function ObtainFavoriteNumber. That function returns an int
	// which is then assigned to the local variable YourFavoriteNumber.

	sum = myFavNum + yourFavoriteNumber;
	cout << "The sum of our favorite numbers is " << sum << endl;

	return 0;
} // end of main

int obtainFavoriteNumber()
// This function obtains the user's favorite number.
{
	int temp = 0;		// a local, temporary variable

	cout << "Enter your favorite number as an integer: ";
	cin >> temp;

	return temp;
} // end of obtainFavoriteNumber