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End of file checking

Posted on 2000-04-16
1
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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.
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Question by:mkjoshi
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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
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