double RoundToHundredths(double n)

{

    double d;

    int    i;



    /* rescale 123.45678 to 12345.678 */ 

    d = n * 100.0;

    /* round off: 12345.678 + 0.5 = 12346.178 -> 12346 */ 

    i = d + 0.5;

    /* restore to its original scale: 12346 -> 123.46 */

    d = (float)i / 100.0;



    return d;

}

#include <iostream>

#include <iomanip>

#include <string>

using namespace std;



struct menuItemType

{

    string menuItem;

    double menuPrice;    

    int numOrdered;

};

menuItemType theMenu;



void showMenu();

int getData(int number); 

double Round(double &totalTax); 

void printCheck(double &tax, double &totalBill); 

int choice=0; //    The number the user chooses for the item they want    

int number=0; // Used in the getData function

int x=0; // used in "for" loop to initialize numOrdered to 0.

double bill = 0.0; 

double totalBill = 0.0; //  w/ tax

double tax = 0.0;  

double taxRate = .05; // tax% 

double totalTax =0.0; 

char shouldContinue; 

    





int main()

{    

    



    theMenu[0].menuItem  = "#1  Plain Egg...........";    

    theMenu[1].menuItem  = "#2  Bacon and Egg.......";

    theMenu[2].menuItem  = "#3  Muffin..............";

    theMenu[3].menuItem  = "#4  French Toast........";

    theMenu[4].menuItem  = "#5  Fruit Basket........";

    theMenu[5].menuItem  = "#6  Cereal..............";

    theMenu[6].menuItem  = "#7  Coffee..............";

    theMenu[7].menuItem  = "#8  Tea.................";



    theMenu[0].menuPrice  = 1.45;    

    theMenu[1].menuPrice  = 2.45;

    theMenu[2].menuPrice  = 0.99;

    theMenu[3].menuPrice  = 1.99;

    theMenu[4].menuPrice  = 2.49;

    theMenu[5].menuPrice  = 0.69;

    theMenu[6].menuPrice  = 0.50;

    theMenu[7].menuPrice  = 0.75;



    for (x = 0; x < 8; x++) // Initialize theMenu.numOrdered to all 0's.  

    {

        theMenu.numOrdered = 0;

    }

    

    do

    {

        showMenu();  // run the void showMenu() function

        cout << "\n" << endl;



        choice = getData(number); // Returns the number the person chose the the array number



        bill = theMenu[choice].menuPrice + bill; // Keeps a running total of the bill

    

        theMenu[choice].numOrdered++; //Add 1 to the amount of the item ordered.  



        cout << "\n" << theMenu[choice].numOrdered << setw (20) << theMenu[choice].menuItem << " \n" << endl;



        cout << "Would you like to place another order?  (Y/N)" << endl; // Allow to purchase more

        cin >> shouldContinue;

}

while (shouldContinue == 'Y' || shouldContinue == 'y');



cout << endl;



totalTax = bill * taxRate;



tax = Round(totalTax);

    

totalBill = bill + tax;



printCheck(tax, totalBill);

   

} 





void showMenu()

{

    int x;

    for (x = 0; x <=8; x++)

    cout << theMenu.menuItem << "\t" << theMenu.menuPrice << endl; 

}





int getData(int number) 

{ 

int z; 

z = 0; 



cout << "Please choose a food item by the corresponding number." << endl; 

cin >> z; 

number = z - 1; 



return number; 

}

double Round(double &totalTax) //Round to the nearest cent.  

   {

    double tax;

   

    tax = totalTax * 100.0 + 0.5;

    return tax / 100.0;



}



void printCheck(double &tax, double &totalBill)

{

    int x;

    x = 0;



    cout << "Welcome Johnny's Restaurant\n" << endl;

    for (x = 0; x < 8; x++)

    {

        if (theMenu.numOrdered > 0)

        {

                  cout << theMenu.numOrdered << "\t" << theMenu.menuItem << "\t" << right << theMenu.menuPrice << right << endl; 

        }

else 

{

cout << "";

}

}



    cout << "Tax" << setw (27) << "$" << tax <<  endl;

    cout << "Amount Due" << setw (20) << "$" << totalBill  << endl;

cin.ignore(2);



}