Display Data From Text Files - c++

Question

I'm working on a system in which a set of data has been asked and acquired from user, stored on the text file, to be displayed, searched and eddied later. So far I could write all the functions, and data's are stored on text files, but however when I tend to read from files, I end up having an error saying "Unhandled exception at 0x0F797EA6 (msvcp120d.dll) in Assignment.exe: 0xC0000005: Access violation reading location 0x00000000". I'm guessing it has to do something with my pointers, but I can't really figure it out , here are the code snippets ;
function to acquire data:
void get_apartment_details(){
cout << "Apartment ID:" << apartment_id() << endl << endl;
cin >> auto_id;
while (true) {
cout << "Apartment Addres:" << endl;
cin >> apartment_address;
if (apartment_address.empty()) {
cout << "Please Do Enter a Name, Blank Data's Are Not Allowed!" << endl;
cin.clear();
}
else if (validate_string(apartment_address) == false) {
cout << "Please Enter Only Alphabetic Elements, Digits Are Not Allowd!" << endl;
cin.clear();
}
else {
cout << "Number Of Bedrooms: (Limited To 2,3, and 4 Only)" << endl;
if (isNumber(number_of_bedrooms) == false ) {
cout << "Please Do Enter Numbers Only" << endl;
cin.clear();
}
else if (number_of_bedrooms < 2 || number_of_bedrooms > 4) {
cout << "Numbers Are Only Limited To 2,3, And 4" << endl;
cin.clear();
}
else {
cout << "Number Of Bathrooms:" << endl;
if (isNumber(number_of_bathrooms) == false) {
cout << "Please Do Enter Numbers Only!" << endl;
cin.clear();
}
else if (number_of_bathrooms > 10) {
cout << "The Maximum Number Of Bathrooms Defined Is 10" << endl;
cin.clear();
}
else {
cout << "Maximum Capacity:" << endl;
if (isNumber(maximum_capacity) == false) {
cout << "Please Do Enter Numbers Only!" << endl;
cin.clear();
}
else if (maximum_capacity > 10) {
cout << "The Maximum Capacity Defined For The System Is 10!" << endl;
cin.clear();
}
else {
cout << "Size (sq feet): " << endl;
if (isNumber(size)==false) {
cout << "Please Do Enter Only Numbers!" << endl;
cin.clear();
}
else if (size > 929) {
cout << "Size Of The House Can't Be More 929 Sq Feet, Or 1000 Meters" << endl;
cin.clear();
}
else {
cout << "Daily Rental:" << endl;
if (isNumber(daily_rental) == false) {
cout << "Please Do Enter Only Numbers!" << endl;
cin.clear();
}
else if (daily_rental > 1000) {
cout << "The Maximum For Daily Rental Is 1000" << endl;
cin.clear();
}
else {
cout << "Weekly Rental:" << endl;
if (isNumber(weekly_rental) == false) {
cout << "Please Do Enter Only Numbers!" << endl;
cin.clear();
}
else if (weekly_rental > 1000) {
cout << "The Maximum For Weekly Rental Is 7000" << endl;
cin.clear();
}
else {
cout << "Monthly Rental:" << endl;
if (isNumber(monthly_rental) == false) {
cout << "Please Do Enter Only Numbers!" << endl;
cin.clear();
}
else if (monthly_rental > 1000) {
cout << "The Maximum For Weekly Rental Is 7000" << endl;
cin.clear();
}
else {
cout << "Please Do Choose The Available Facilities: ( Choose 4 )" << endl;
cout << "1.Local Restaurant Chargeback" << endl;
cout << "2.On-Site Reception" << endl;
cout << "3.Broadband Internet Access" << endl;
cout << "4.Housekeeping" << endl;
cout << "5.Business Administration Services" << endl;
cout << "6.Baby Sitting Booking Service" << endl << endl;
cout << "First Item:" << endl;
cin >> opt2;
if ( 0 > opt2 > 6) {
cout << "Please Dn Only Enter In Digits From 1 To 6" << endl;
cin.clear();
}
else {
cout << "Second Item:" << endl;
cin >> opt3;
if (0 > opt2 > 6) {
cout << "Please Dn Only Enter In Digits From 1 To 6" << endl;
cin.clear();
}
else {
cout << "Third Item:" << endl;
cin >> opt4;
if (0 > opt2 > 6) {
cout << "Please Dn Only Enter In Digits From 1 To 6" << endl;
cin.clear();
}
else {
cout << "Fourth Item:" << endl;
cin >> opt5;
if (0 > opt2 > 6) {
cout << "Please Dn Only Enter In Digits From 1 To 6" << endl << endl;
cin.clear();
}
break;
}
}
}
}
}
}
}
}
}
}
}
}
}
Function to store data's in to the text file :
void add_apartment(){
system("cls");
staff staffobj;
staffobj.get_apartment_details();
progress();
ofstream outFile;
outFile.open("apartment.txt", ios::binary | ios::app);
outFile.write(reinterpret_cast<char *> (&staffobj), sizeof(staff));
outFile.close();
cout << endl << "\n\n Details Of New Apartments Has Been Succesfully Added";
cin.ignore();
cin.get();
staff_menu();
}
Function to display data from text file :
void display_all()
{
staff st;
ifstream inFile;
inFile.open("apartment.txt", ios::binary);
if (!inFile)
{
cout << "File could not be open !! Press any Key...";
cin.ignore();
cin.get();
staff_menu();
}
cout << "\n\n\n\t\t\tRegistered Apartments Records !!!\n\n";
while (inFile.read(reinterpret_cast<char *> (&st), sizeof(staff)))
{
st.ShowData_Apartment();
cout << "\n\n====================================\n";
}
inFile.close();
cin.ignore();
cin.get();
system("pause");
staff_menu();
}
showdata :
void ShowData_Apartment(){
cout << "Apartment Address:" << apartment_address << endl;
cout << "Number Of Bedrooms:" << number_of_bedrooms << endl;
cout << "Number Of Bathrooms:" << number_of_bathrooms << endl;
cout << "Maximum Capacity:" << maximum_capacity << endl;
cout << "Size (sq feet):" << size << endl;
cout << "Daily Rental::" << daily_rental << endl;
cout << "Weekly Rental:" << weekly_rental << endl;
cout << "Monthly Rental:" << monthly_rental << endl;
cout << "Facilities Availabale:" << endl;
cout << opt2 << endl;
cout << opt3 << endl;
cout << opt4 << endl;
cout << opt5 << endl;
}