/*
   testrep12.cpp
   CIS 150
   6/10/2008
   David Klick
  
   This program demonstrates how repetion can be combined
   with menus to create a more useful application interface.
*/

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

void cont();

int main() {
   char choice;        // variable for user input
   bool done = false;  // true after user selects exit
   
   do {
      // display menu
      cout << "\n\nMenu of choices:\n\n"
           << "1. (F)irst choice\n\n"
           << "2. (S)econd choice\n\n"
           << "3. (T)hird choice\n\n"
           << "4. E(x)it\n\n"
           << "Please enter choice: ";
           
      // get user's menu choice
      cin >> choice;
      
      // decide what to do based on user's choice
      switch (choice) {
      case '1':
      case 'F':
      case 'f':
         cout << "You chose the first option!\n";
         break;
      case '2':
      case 'S':
      case 's':
         cout << "You chose the second option!\n";
         break;
      case '3':
      case 'T':
      case 't':
         cout << "You chose the third option!\n";
         break;
      case '4':
      case 'X':
      case 'x':
         done = true;
         break;
      default:
         cout << "Error: Invalid menu choice\n";
      }
      
      // pause if user didn't choose to exit
      if (!done) {
         cout << "Press any key to continue ";
         cin.ignore();
         getchar();
      }
      
   } while (!done);  // repeat until done
   
   cout << "\nNormal program termination\n";
   
   cont();
   return 0;
}

void cont() {
   if (cin.rdbuf()->sungetc() != -1 && cin.get() != '\n') cin.ignore(80,'\n');
   cout << "Press enter to continue...";
   cin.get();
}

/*
   Sample output:

   Menu of choices:

   1. (F)irst choice

   2. (S)econd choice

   3. (T)hird choice

   4. E(x)it

   Please enter choice: 0
   Error: Invalid menu choice
   Press any key to continue

   Please enter choice: 1
   You chose the first option!
   Press any key to continue

   Please enter choice: 2
   You chose the second option!
   Press any key to continue

   Please enter choice: 3
   You chose the third option!
   Press any key to continue

   Please enter choice: 4

   Normal program termination
*/