//
// Filename:      pgm3_6b.cpp
//
// Description:   Demo program, References versus Pass by Value #2: Menu
//
// ENSC 104:      Digital Computer Programming
//
// Instructor:    Dr. Walsh
//
// Section:       2
//
// Date Created:  03/17/98
// Last Modified: 03/17/98
//
// Name:          N/A
//

#include <iostream.h>

void mainMenu0( int & choice );
int mainMenu1( void );

main()
   {
   int choice = -1;
   
   mainMenu0( choice );
   cout << "choice is " << choice << endl << endl;

   choice = mainMenu1( );
   cout << "choice is " << choice << endl;

   return 0;
   }

// pass by reference method
void mainMenu0( int & choice)
   {
   cout << "MAIN MENU\n";
   cout << "*********\n\n";
   
   cout << "1. Option 1\n";
   cout << "2. Option 2\n";
   cout << "3. Option 3\n";
   cout << "4. Option 4\n";

   cout << "Enter Option: ";
   cin >> choice;
   }

// return value method
int mainMenu1( void )
   {
   int choice;  // Local variable to subroutine
   
   cout << "MAIN MENU\n";
   cout << "*********\n\n";
   
   cout << "1. Option 1\n";
   cout << "2. Option 2\n";
   cout << "3. Option 3\n";
   cout << "4. Option 4\n";

   cout << "Enter Option: ";
   cin >> choice;

   return choice;
   }