fstream  customerFile("customer.txt", ios::in | ios::out | ios::binary);
 
void createCustomerFile( fstream & customerFile )
{
   int MAXREC;
   cout << "Enter number of records you want to create for customer File" << endl;
   cin  >> MAXREC;
 
   C  blankRec = { 0 };      // blank record to use to create file
 
 
 
   for( int k = 0; k < MAXREC; k++ )
       customerFile.write(reinterpret_cast <char *> ( &blankRec), sizeof( C ));
 
 }
 
void newCustomer( fstream & customerFile, int latestCustomerID, int acct, int transactionNum, int accNumber)
{
   C record;  
 
    //move to start of record
   customerFile.seekg((acct ) * sizeof( C ), ios::beg );
   customerFile.read( reinterpret_cast<char  *> (&record), sizeof( C ) );
 
   if ( record.customerID == 0 )
      cout <<  "Customer  account is  there already.\n";
   else
   {
       record.customerID = latestCustomerID;
      	cin.get();
      	cout << "Enter first name "<<endl;
        gets(record.name);
 
        cout << "Enter surname" << endl;
        gets(record.surname);
 
        cout << "Enter number of Accounts" << endl;
        cin  >> record.numAccounts;
 
        record.accArray = new A[record.numAccounts];    //create dynamic array
 
		for(int i =0; i < record.numAccounts;i++)
        {
        	record.accArray[i].accNumber = accNumber;
 
            record.accArray[i].transactionID = transactionNum; 
            cout << "Transaction ID = " << record.accArray[i].transactionID << endl;
 
 
            cout << "Enter account type, either D or C" << endl;
            cin  >> record.accArray[i].accType;
 
            if(record.accArray[i].accType == 'D' || record.accArray[i].accType == 'd' )
            {
            cout <<"Enter intrest Rate" << endl;
            cin  >> record.accArray[i].intrestRate;
 
            cout <<"Enter balance" << endl;
            cin  >> record.accArray[i].balance;
			cout << "acc Number " << record.accArray[i].accNumber <<endl;
			accNumber++;
 
            }
            else if(record.accArray[i].accType == 'C' || record.accArray[i].accType == 'c')
            {
 
            cout <<"Enter balance" << endl;
            cin  >> record.accArray[i].balance;
            cout << "acc Number " << record.accArray[i].accNumber <<endl;
 			accNumber++;
            }
            else if(record.accArray[i].accType != 'c' || 'd') 
            {
            cout << "Error you must redo this step, you have not created an account" << endl;
            }
 
 
        }
 
 
        customerFile.seekp( ( acct ) * sizeof( C ), ios::beg );
        customerFile.write( reinterpret_cast< char*  > (&record), sizeof( C ) );
        customerID++;
  		infile.close();
   }
 
    return;
 
 
}
 
void updateCustomer(fstream & customerFile)
{
	C record;
	int customerid;
 
	cout << "Enter customer id" << endl;
	cin  >> customerid;
 
	customerFile.seekg((customerid) * sizeof( C ), ios::beg );
	customerFile.read(reinterpret_cast<char*>(&record),sizeof(C));
 
	int numBytes = customerFile.tellg();
	int offset = (numBytes - 1) * sizeof(C);
	customerFile.seekp(offset - sizeof(C));
 
char option;
bool menuDisplay = true;				
while(menuDisplay == true)
{	
 
    system("CLS");
	cout << MENU2;
	cin  >> option;
	option = toupper(option);
	cin.get();
 
    if(option == 'n')
	{
	cin.get();
	gets(record.name);
	cout << "changing the first name" << endl;
	system("PAUSE");
 
	}
	else if(option == 's')
	{
	cin.get();
	gets(record.surname);
	cout << "changing the surname" << endl;
	system("PAUSE");
 
	}
	else if(option == 'X')
	{
 
	menuDisplay = false;
 
	}
}
 
	cout << record.name;
	cout << record.surname;
 
	customerFile.write( reinterpret_cast<char  *> (&record), sizeof( C ) );	
 
}