C++ how to sell record/title

Alright I no longer have compiler errors. I require help with writing code for selling a record. How would I go about that?

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#include <iostream>
#include <cstdlib>
#include <string>
#include <fstream>
#include <cctype>
#include <conio.h>
using namespace std;

//declare variables
void Add();
void Edit();
void Display();
void Delete();
void Sell();
void Value();
void printRecords();

struct Inventory
{
    char title[35], artist[25], type[12];
    int year;
    int price;
    int choice;
    bool dead_flag;




};


int main()
{
    int choice;
    do
    {
        cout << "MENU" << endl;
        cout << "1. Add Record(s): " << endl;
        cout << "2. Display Records: " << endl;
        cout << "3. Edit Records: " << endl;
        cout << "4. Delete Records: " << endl;
        cout << "5. Sell a Title: " << endl;
        cout << "6. Sold Value: " << endl;
        cout << "7. Display all Records: " << endl;
        cout << "Please enter your selection.\n> ";
        cin >> choice;

        switch (choice)// change into an if else statement then turn into a function
        {
        case 1:
            Add();//Add record
            break;
        case 2:
            Display();//Display record
            break;
        case 3:
            Edit();//Edit record
            break;
        case 4:
            Delete();//Delete record
            break;
        case 5:
            Sell();  //Sell record
            break;
        case 6:
            Value(); //value of sold records
            break;
        case 7:
            printRecords();
            break;

        default:
            cout << "Invalid Selection" << endl;
        }
    }
    while(choice <= 7);

    system("PAUSE");
    return 0;
}



//Add function
void Add()
{
    system("CLS"); //clears screen

    fstream fout;
    Inventory inv;
    char ch;

    fout.open("output.bin", ios::out | ios::binary | ios::app);

    do
    {
        cout << "Enter title: ";
        cin >> inv.title;
        cout << "Enter artist: ";
        cin >> inv.artist;
        cout << "Enter type: ";
        cin >> inv.type;
        cout << "Enter price: ";
        cin >> inv.price;
        cout << "Enter year: ";
        cin >> inv.year;

        //write record to file
        fout.write(reinterpret_cast<char*>(&inv), sizeof(inv));

        cout << "Do you want to add another record? " << endl;
        cin >> ch;
    }
    while(tolower(ch) == 'y');

//close the file
    fout.close();
}



//"Display" function
void Display()
{
    system("CLS"); //clears screen

    Inventory inv;
    fstream fout;

    fout.open("output.bin", ios::in | ios::binary);

    fout.read(reinterpret_cast <char*> (&inv), sizeof(inv));

    while (!fout.eof())
    {

        cout << "\nTitle\t: "   << inv.title;
        cout << "\nArtist\t: "  << inv.artist;
        cout << "\nType\t: "    << inv.type;
        cout << "\nYear\t: "    << inv.year;
        cout << "\nPrice\t: "   << inv.price;

        fout.read(reinterpret_cast <char*> (&inv), sizeof(inv));

    }
//close the file
    fout.close();
}



void Edit()
{
    int x;
    Inventory inv;
    fstream fout;

    fout.open("output.bin", ios::in|ios::binary);
    fout.seekg(0, ios::end);
    int count = fout.tellg()/sizeof(inv);
    cout << "\n There are "<< count <<" record in the file";
    cout << "\n Enter Record Number to edit: ";
    cin >> x;

    fout.seekg((x-1)*sizeof(inv));
    fout.read(reinterpret_cast<char*>(&inv), sizeof(inv));

    cout << "Record " << x << " has following data: " << endl;
    Display();
    fout.close();
    fout.open("output.bin", ios::out|ios::in|ios::binary);
    fout.seekp((x-1)*sizeof(inv));
    cout << "\nEnter data to Modify: " << endl;

    fout.write(reinterpret_cast <char*> (&inv), sizeof(inv));
}




void Delete()
{
    Inventory inv;
    char option;
    int position;
    fstream fout;

    fout.open("output.bin", ios::binary | ios::in | ios::out);
    fout.clear();
    fout.seekp( position*sizeof(inv), ios :: beg );
    fout.read(reinterpret_cast <char*> (&inv), sizeof(inv));

    cout << endl << endl;
    cout << "Would you like to delete this record? Yes (y) or No (n): ";
    cin >> option;

    option = getch();

    fout.seekp(position*sizeof(inv),ios::beg);
    fout.write(reinterpret_cast <char*> (&inv), sizeof(inv));

    getch();



    fout.close();
}

void Sell()
{


}

void Value()
{


}
void printRecords()
{
    Inventory inv;
    fstream fout;

    fout.open ( "output.bin" , ios :: binary | ios :: in );
    fout.clear();
    fout.read ( ( char* ) &inv, sizeof ( inv ) );

    while ( !fout.eof() )
    {
        cout << "\nTitle\t: "   << inv.title;
        cout << "\nArtist\t: "  << inv.artist;
        cout << "\nType\t: "    << inv.type;
        cout << "\nYear\t: "    << inv.year;
        cout << "\nPrice\t: "   << inv.price;

        fout.read ( ( char* ) &inv, sizeof ("output.bin") );
    }

    cout << endl << "Press any key to continue back to main menu" << endl;
    getch();


    fout.close();
}


Last edited on
I updated my original question.
Last edited on
The issue is that my headers and other .cpp where changed is there any way I can salvage what I labeled as main.


What?

I don't understand the problem. Can you rephrase more clearly?
Alright I updated my original question. I hope it's a lot more clear than my first. :)
Alright what I want to do is make a main.cpp that runs but does nothing.


So... like this?

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//main.cpp

int main()
{}
....no not like that. Any help making my main work will be appreciated.
Before you can get main to work, you're going to have to fix the compile errors. Your problem description doesn't say anything about being unable to compile.

Line 71, 108: Where is Inventory declared?

Sorry I posted the wrong code during my update. My new one does have compile errors I'm working on.
Last edited on
Yay I just finished the delete function! :)
I have just updated my code and I am sad to say that I still can't sell a record. I do know now that I need a bool dead_flag;
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