Solved

End of file checking

Posted on 2000-04-16
1
200 Views
Last Modified: 2013-11-20
HI,
 How to check the end of a file condition? I have

void CProj1Doc::Serialize(CArchive& ar)
{
      char str[100];
      if (ar.IsStoring())
      {      
      const CFile* fp = ar.GetFile();
      ar.ReadString(string);
      while (NOT_ENDOF_FILE)
      ar.Read(str,10);
                        
      }
}

Also let me know usage of ReadString instead of Read function.
0
Comment
Question by:mkjoshi
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 11

Accepted Solution

by:
mikeblas earned 50 total points
ID: 2720792

I don't understand your code; if you're storing, why are you reading from the archive? That'll just get you a bunch of assertions.

Here's code that works:


void CProj1Doc::Serialize(CArchive& ar)
{
   CString str;
   if (!ar.IsStoring())
   {
      const CFile* fp = ar.GetFile();
      while (ar.ReadString(str))
      {
         // str is a string--you can do something with it
      }
   }
}

and that's that. That code will read the file line-by-line. The loop is controlled by ReadString()--that function itself will return NULL when the file ends, and that will stop your loop.

..B ekiM
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This is to be the first in a series of articles demonstrating the development of a complete windows based application using the MFC classes.  I’ll try to keep each article focused on one (or a couple) of the tasks that one may meet.   Introductio…
Introduction: Ownerdraw of the grid button.  A singleton class implentation and usage. Continuing from the fifth article about sudoku.   Open the project in visual studio. Go to the class view – CGridButton should be visible as a class.  R…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

628 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question