File IO - writes to out file, then errors...

[Reiyn]

Here is my code, it will read from in_file and write the out_file, then I get his error:
[IMG]http://i6.photobucket.com/albums/y240/fahkU/Errorimage.gif[/IMG]
It didnt like the link, so here's the error code:
Debug assertation failed.
File dgbheap.c
Line 1044
Expression: _CrtIsValidHeapPointer(PUserData)

It wrote (to the output file) 0 for num of books and magazines, but the proper total for purchase...

#include "Includes.h"

extern void main(void);

extern void main()
{
	{
	cPublication *oPublication;
	oPublication = new cPublication;

		sTypes *Type;
		Type = new sTypes;
		int iChoice;
		
		//cout << "Publication constructor up...\n";
		cout << "\nAre you interested in ordering books or magazines? \n";
		
		cout << "\t 1 - Book\n";
		cout << "\t 2 - Magazine\n";
		
		cin  >>  iChoice;
		cout <<  "You will be ordering a ";
	
		switch(iChoice)
			{
				case 1:
					*Type = book;
					cout << "books\n";
					
					break;
					
				case 2:
					*Type = magazine;
					cout << "magazines\n";
					
					break;
			}
		cout <<"\n";

		
	

	{
	cMagazine *oMagazine;
	oMagazine = new cMagazine;

		oMagazine->SetiArticles(20);
		int iArticles = oMagazine->GetiArticles();

		//cout<<"\nMagazine constructor up...\n\n";
	
		//cout<< "\ncMagazine instantiated as having "<< iArticles  <<" articles in the magazine\n";
		
		cout<<"\nHow many in-depth articles would you like to see in your favorite guitar magazine?\n";
		
		cin>>iArticles;
		
		if(iArticles < 6)
			cout<< "Not a big reader eh?\n";
		else
			cout<< "Alright! You must have a lot of useless knowledge up there!\n";

		delete oMagazine;


	{
	cBook *oBook;
	oBook = new cBook;

		oBook->SetiChapters(12);
		int iChapters = oBook->GetiChapters();

		//cout<<"\nBook constructor up...\n";
		//cout << "\nThere are " << iChapters << " chapters as instantiated\n";

		cout << "\nHow many chapters in your favorite book?\n";
		cin >>iChapters;
		cout<< "\nYour book has "<< iChapters << " chapters in it?\n";
		
		if (iChapters <10)
			cout << "\nShort attention deficit?\n";
		else
			cout << "\nI like novels too!\n";
		delete oBook;
{
	cBPrice *oBPrice;
	oBPrice = new cBPrice;
	
		oBPrice->SetiNumBooks(1);
		int iNumBooks = oBPrice->GetiNumBooks();


		double iBPrice = 20.00;
		
		cout << "To summarize, your favorite book has "<< iChapters <<" chapter(s) in it, and your favorite magazine should have "<< iArticles <<" articles in it.\n\n"<<endl;
		cout << "Our distribution center has just the specialty books and magazines your niche market looks for!\nHow many books can I order for you?\n"<<endl;
		cout << "Books run $20, magazines run $6\n"<<endl;
		cin >> iNumBooks;
		cout<<endl;
		oBPrice->SetiNumBooks(iNumBooks);
		
		double iBSum = iBPrice * iNumBooks;
		double iTax = .05;
		double iBSubTotal = iBSum * iTax;
		double iBTotal = iBSubTotal + iBSum;
		cout << "The total of your book purchases will be $" << iBSum << " dollars plus $"<< iBSubTotal << " tax, coming to $"<< iBTotal<<endl<<endl;
	
		/*NEED TO GO ONLINE TO FIND ALGORITHYM FOR NO ROUNDING!!!!!
		for ( places = 0; places <=2; places++ )
		{
		cout.precision(places) << " The total of your book purchases will be " << iSum << " dollars plus "<< iSubTotal << " tax, coming to "<< iTotal<<endl;
		}*/

		oBPrice->SetiNumMagazines(1);
		int iNumMagazines = oBPrice->GetiNumMagazines();
		
		double iMPrice = 6.00;

		cout << "\nHow many Magazines can I order for you?\n";
		cin >> iNumMagazines;
		cout<<endl;
		oBPrice->SetiNumMagazines(iNumMagazines);
		
		double iMSum = iMPrice * iNumMagazines;
		
		double iMSubTotal = iMSum * iTax;
		
		
		
		oBPrice->SetiMTotal(0.00);

		double iMTotal = iMSubTotal + iMSum;
		oBPrice->SetiMTotal(iMTotal);
		
		iMTotal = oBPrice->GetiMTotal();
		
		cout << "The total of your Magazine purchases will be $" << iMSum << " dollars plus $"<< iMSubTotal << " tax, coming to $"<< iMTotal<<endl;
		
		
		
		oBPrice->SetiSubTotalBoth(1.00);
		
		double iSubTotalBoth = iMSum + iBSum;
		
		oBPrice->SetiSubTotalBoth(iSubTotalBoth);

		iSubTotalBoth = oBPrice->GetiSubTotalBoth();

		cout << "Total for your order: " << iSubTotalBoth<<endl<<endl;
		
		
		
		oBPrice->SetiTaxBoth(.05);
		
		double iTaxBoth = iSubTotalBoth * iTax;

		oBPrice->SetiTaxBoth(iTaxBoth);
		
		iTaxBoth = oBPrice->GetiTaxBoth();
		cout << "Tax on your books and magazines purchase is $" <<iTaxBoth<<endl;
		
		
		
		oBPrice ->SetiDisplayTotalBoth(1.00);
		
		double iDisplayTotalBoth = iTaxBoth + iSubTotalBoth;

		oBPrice ->SetiDisplayTotalBoth(iDisplayTotalBoth);

		iDisplayTotalBoth = oBPrice->GetiDisplayTotalBoth();
		
		cout << "Your total with tax is $" << iDisplayTotalBoth<<endl<<endl;
		
		cout << "Make payment to Kevin Schuth, oh, and he likes cash!!!!\n";
		
	
	
		
#define BUF_SIZE	101
#define IN_FILE		"ReceiptData.dat"
#define OUT_FILE	"SalesLogFile.dat"

		{
	ifstream	ifInputFile;
	ofstream    ofOutputFile;
	char		sBuffer[BUF_SIZE];
	bool		bDataExists(true);
	int			iTotal = 0;

	
	ifInputFile.open( IN_FILE, ios::in );
	if( ifInputFile.is_open() != 1 )
	{
		cout << "File " << IN_FILE << " could not be opened!" << endl;
		cout << "Exiting program, good bye." << endl;
	}
	else
	{
		 cout <<  endl << endl;
		while( bDataExists == true )
		{
			ifInputFile.getline( sBuffer, 101 );
			if( ifInputFile.eof() == 1 )
			{
				bDataExists = false;
			}
			else
			{
				cout << sBuffer << endl;
				iTotal += atoi(sBuffer);
			}
		}
	
		ifInputFile.close();
		cout << endl << endl;
	}

		ofOutputFile.open(OUT_FILE, ios::out);

		if( ofOutputFile.is_open() == 1 )
	{	
		cout<<"Writing Sales Log"<< endl << endl;
		
		//iNumBooks = oBPrice->GetiNumBooks();
		//iNumMagazines = oBPrice->GetiNumMagazines();
		iDisplayTotalBoth = oBPrice->GetiDisplayTotalBoth();
		//ofOutputFile<< "The total books ordered is " << iNumBooks << endl;
		//ofOutputFile<< "The total magazines ordered is " << iNumMagazines << endl;
		ofOutputFile<< "The total of your order is $" << iDisplayTotalBoth << endl;
		ofOutputFile<< "Thank you for your purchase"<< endl;
		ofOutputFile<< "Schuth Publication Distributors"<<endl;
		ofOutputFile<< "Kevin J Schuth"<<endl;
	
	}

	ofOutputFile.close();
	cout << "Sales Log closed, have a day!" << endl;
};
	delete oBook;
	delete oMagazine;
	delete oBPrice;
	delete oPublication;
	
	
	}
	}
	}
	}

	return;
};

I am only getting an error AFTER it writes the output file. Any ideas why?
Thanks

[helios]

At first glance, you seem to be deleting 'oBook' on line 84, then again on line 239 and 'oMagazine' on line 63 and line 240.

[Reiyn]

O geez!! I've looked at this so many times and not seen that!!
Thanks!