From: dontmailme AT iname DOT com (Steamer)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: problem reading file
Date: Tue, 14 Nov 2000 22:50:34 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Minoff wrote:

> I'm trying to get this dos app to open and display an already existing .dat
> file using C++. The file resides in the same folder as the .cpp files. Here
> is the
> code I  am working with:
> # include <iostream.h>
> # include <fstream.h>
> void main ()
> {
> ifstream File;
> 
>  File.open("transactions.dat",ios::in);
> 
>  if (!File.fail())
>  {
>   File>> ;
>   while (!File.eof())
>  }
> 
>  File.close ();
> }

You have lots of mistakes there.  

> Anyone know what I need to add to display the data that is in the .dat file?

I don't know what format your data file is in, so the following
probably won't be appropriate, but it should give you an idea of
what to do:

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

int main()
{
    ifstream File;
    string s;
    File.open("transactions.dat", ios::in);
    if (File.fail())
	cerr << "Failed to open file!\n";
    else {
	while (File >> s)
	    cout << s << '\n';
	if (!File.eof())
	    cerr << "Error reading file!\n";
	File.close();
    }
}