Program skips struct and goes straight to int main()

[antwan]

The program is functional, it's not complete though. I'm just trying to figure out how to put my input into the struct. When I run the program it takes me straight to int main(). But when I take the struct out and run it in a new window all alone it allows me to do the input. I'm trying to do input for 10 books. Thanks in advance to whatever help I might get!

#include <iostream>
#include <iomanip>
#include <cmath>
#include <string.h>

using namespace std;

// Function Prototypes
double CashierMod();
int InventoryMod();
double ReportMod();
char BookInfo();
char BookInput();
int menu();

const int SIZE=50;
const int PRECISION=2;
const int NUM_BOOKS=10;
const double Tax = 0.06;

double InvList, WholeSaleValue, RetailValue, QtyList, QtyCost, AgeList;
double Price, Sales_Tax, TotalSale, SubTotal;
char date;


struct Store
{
       char ISBN [SIZE];
       char title [SIZE];
       char author [SIZE];
       char publisher [SIZE];
       char dateAdded [SIZE];
       int onHand;
       double wholeCost;
       double retailCost;
};


char BookInput()
{
       int n;
       Store BookInput;
       
       for (n=0; n<NUM_BOOKS;n++)
       {
       cout<<"Enter the book's ISBN number: \n";
       cin.getline(BookInput.ISBN, SIZE);
       cout<<"Enter the title of the book: \n";
       cin.getline(BookInput.title, SIZE);
       cout<<"Enter the author of the book: \n";
       cin.getline(BookInput.author, SIZE);
       cout<<"Enter the publisher of the book: \n";
       cin.getline(BookInput.publisher,SIZE);
       cout<<"Enter the date the book was added: \n";
       cin.getline(BookInput.dateAdded, SIZE);
       cout<<"Enter the quantity of this book on hand: \n";
       cin>>BookInput.onHand;
       cout<<"Enter the wholesale cost of the book: \n";
       cin>>BookInput.wholeCost;
       cout<<"Enter the retail cost of the book: \n";
       cin>>BookInput.retailCost;
       }
       
       system ("pause");
       return 0;
       
};

// The Main Module.
int main ()
{
    struct Store;
    int selection;

    cout << fixed << showpoint << setprecision(2);
    do
    {
      selection = menu();
      switch(selection)
      {
         case 1 : CashierMod();
                  break;
         case 2 : InventoryMod();
                  break;
         case 3 : ReportMod();
                  break;
         case 4 : BookInfo();
                  break;
         case 5 : cout << "Exiting program.\n\n";
      }
    } while (selection != 5);
   return 0;

}

// The Main Menu Module.
int menu()
{
    int choice;
    cout << "S & E Book Store\n";
    cout << "\tMain Menu\n";
    cout << "----------------\n";
    cout << "1) Check Out\n";
    cout << "2) Inventory\n";
    cout << "3) Reports\n";
    cout << "4) Book Information\n";
    cout << "5) Exit Program\n";
    cout << "Enter 1, 2, 3, 4, or 5: \n";
    cin >> choice;
   while (choice < 1 || choice > 5) // Validate input
   {
      cout << "Invalid Selection. Enter 1, 2, 3, 4, or 5: ";
      cin >> choice;
   }
   return choice;
    
    
}

// The Cashier Module.
double CashierMod ()
{    
      
    int ISBN, Qty;  
    char date [SIZE];      
    cout << "S & E Book Store\n";
    cout << "\tCash Register Menu\n";
    cout << "----------------\n";
    cout << "Please enter today's date: \n";
    cout << "(Ex: 10-Nov-2008)"<<endl;
    cin >> date; // Example: 10-Nov-2008.
    
    cout << "Enter a valid ISBN: \n";
    cin >> ISBN;
    while (ISBN != 123)
    {
          cout << "Invalid selection. Enter a valid ISBN: \n";
          cin >> ISBN;
    }
          
    cout << "Enter quantity for purchase: \n";
    cin >> Qty;
    
    cout << fixed << showpoint << setprecision(2);
    
    // Calculate subtotal.
    
    SubTotal = ISBN * Qty;
    cout << "Subtotal: \n" << SubTotal;
    // Calculate tax.
    Sales_Tax = SubTotal * Tax;
    cout << "Sales Tax: \n" << Sales_Tax;
    // Calculate Total Sale.
    TotalSale = SubTotal + Sales_Tax;
    cout << "Total: \n" << TotalSale;
    

system ("Pause");
   return 0;
}


// The Inventory Database Module.
int InventoryMod()
{
    int choice;
    
    while (true)
        {
        //Display the menu and get a choice
                cout << endl;
        cout << "S & E Book Store\n";
        cout << "Inventory Database\n";
        cout << "------------------\n";
        cout << "1. Look-Up a Book\n";
        cout << "2. Add a Book\n";
        cout << "3. Edit a Books Record\n";
        cout << "4. Delete a Book\n";
        cout << "5. Return to the Main Menu\n";
        cout << endl;
        cout << "Enter your choice:" << endl;
        cin >> choice;
        switch (choice)
        {
                case 1: void lookUpbook();
                          break;
                case 2: void addBook();
                          break;
                case 3: void editBook();
                          break;
                case 4: void deleteBook();
                          break;
                case 5: cout << "Returning to main menu." << endl;
                          break;
        }

        //Validate and process the menu choice.
        while (choice < 1 || choice > 5)
        {
                cout << "Please enter a number between one and five." << endl;
                cin >> choice;
        }
        } while (choice != 5);
        return 0;
}

//Add stub functions for inventory database

char lookUpBook()
{
	//Get the title of the book to search for
        cout << "Enter the title of the book you wish to search for. " << endl;
        
}


// The Report Module.
double ReportMod ()
{
       int choice;
       
       cout << "S & E Book Store\n";
       cout << "\t Reports\n";
       cout << "----------------\n";
       cout << "1) Inventory Listing\n";
       cout << "2) Inventory Wholesale Value\n";
       cout << "3) Inventory Retail Value\n";
       cout << "4) Listing by Quantity\n";
       cout << "5) Listing by Cost\n";
       cout << "6) Listing by Age\n";
       cout << "7) Return to the Main Menu\n";
       cin >> choice;
       while (choice < 1 || choice > 7) // Validate input
   {
      cout << "Invalid Selection. Enter 1, 2, 3, 4, 5, 6, or 7: ";
      cin >> choice;
   }
   return choice;
       
}

// The Book Info Module.
char BookInfo()
{
     cout << "S & E Book Store\n";
     cout << "Book Information\n";
     cout << "----------------\n";
     cout << "ISBN: \n";
     cout << "Title: \n";
     cout << "Author: \n";
     cout << "Publisher: \n";
     cout << "Date Added: \n";
     cout << "Quantity on Hand: \n";
     cout << "Wholesale Cost: \n";
     cout << "Retail Price: \n";
     
     system ("Pause");
     return 0;

}

[jsmith]

Execution begins at the first line of main() regardless of what appears before it. How are you expecting BookInput() to be called?