#include <iomanip>
#include <cstdlib>
#include <iostream>
#include "RetailItem.h"
#include "RetailStore.h"
 
using namespace std;
const unsigned W = 20;
 
 
int main(int argc, char *argv[])
{
    RetailItem r;
    RetailStore s;
    char z;
 
s.setZero();
 
do
{
   cout<<"This is Programming Assignment #7"<<endl;
   cout<<"THE RETAIL STORE MANAGER"<<endl;
   cout<<"By Jeremy Rice of CSCI 111"<<endl;
   cout<<"Please choose from the following options"<<endl;
   cout<<"\n 1 - Display total inventory"<<endl;
   cout<<"\n 2 - Search for an item"<<endl;
   cout<<"\n 3 - Add a new item to inventory"<<endl;
   cout<<"\n 4 - Sell/Subtract units of an item"<<endl;
   cout<<"\n 5 - Buy/Add units of an item"<<endl;
   cout<<"\n 6 - Change description of an item"<<endl;
   cout<<"\n 7 - Delete an item from the inventory"<<endl;
   cout<<"\n 8 - List items that need ordered"<<endl;
   cout<<"\n 0 - Quit"<<endl;
   cout<<"Your choice: ";
   cin>>s.choice;
 
// IF CHOICE ONE IS ENTERED
// DISPLAY ALL INVENTORY
 
   if (s.choice == 1)
      {
       cout<<"Item"<<setw(20)<<"Description"<<setw(20)<<"Units on Hand";
       cout<<setw(15)<<"Price ($)";
       cout<<setw(15)<<"Subtotal($)"<<endl;
       s.getStoreInventory();
      }
 
//IF CHOICE TWO IS ENTERED
//SEARCH ITEM BY ITS DESCRIPTION
 
   if (s.choice == 2)
      {
       s.getSearch();
      }
 
// IF CHOICE THREE IS ENTERED
// ADD INVENTORY TO THE STORE
 
   if (s.choice == 3)
      {
       s.getAddToStore();
      }
 
 
// IF CHOICE FOUR IS ENTERED
// SUBTRACT UNITS FROM ITEMS
 
   if (s.choice == 4)
      {
       cout<<"Item"<<setw(20)<<"Description"<<setw(20)<<"Units on Hand";
       cout<<setw(15)<<"Price ($)";
       cout<<endl;
       s.setSubtractUnit();
      }
 
// IF CHOICE FIVE IS ENTERED 
// ADD UNITS TO ITEMS
 
   if (s.choice == 5)
      {
       cout<<"Item"<<setw(20)<<"Description"<<setw(20)<<"Units on Hand"<<setw(15)<<"Price ($)";
       cout<<endl;
       s.setAddUnit();
      }
// IF CHOICE SIX IS ENTERED
// CHANGES THE DESCRIPTION OF AN ITEM
 
   if (s.choice == 6)
      {
       s.setChangeDescription();
      }
 
// DELETE AN ITEM FROM THE INVENTORY
 
   if (s.choice == 7)
      {
       s.getDeleteItem();
      }
//  IF CHOICE EIGHT IS ENTERED
//  LIST AND RE ORDER
 
   if (s.choice == 8)
      {
       s.setOrderItems();
      }
 
 
// IF ZERO IS ENTERED
// EXIT PROGRAM
 
   if (s.choice == 0)
      {
       system("pause");
       return 0;
      }
cout<<"Continue? (Y/N): ";
cin>>z;
}
while ((z == 'y')||(z == 'Y'));
}

while(1)
{
   // do something
}

while(1)
{
    ...
    if(/*if user wants to quit*/)
    {
        break;
    }
}

s.choice=1
 
while(s.choice)
{
	print_menu();
	cin>>s.choice;	//you may check for a valid input choice...
	switch(s.choice)
	{
		case 1:	//do the required work
			continue;
		case 2:     //do the required work
			continue;
		....
		....
		case 0:	//quit..
			return 0;  OR  break;
	}
}