Inserting EOF in Binary File using C

Hi,

I am facing problem in inserting EOF character at the end of the binary file. I read CTRL+Z for windows but it doesn't work.

First of all I want to ask that does fclose(SOME FILE POINTER) not automatically insert EOF at the end of file????

Below is the approx. code that i am writing, Kindly tell me whether it is correct or is there a better way to put EOF:

Code:

int add_Book()
{
        fp = fopen("book.lib","a");
        book bk; //Book Structure
        int add = 1;

        while(add == 1)
        {

         printf("Enter 1 for adding book and 2 to quit!!");
         scanf("%d",&add);
   
                if(add==2)
                {
                       Printf("Press CTRL+Z to quit!!!!");
                       scanf("%s%s",bk.author,bk.name);
                       fwrite(&bk,sizeof(bk),1,fp);
                       fclose(fp);
                }
                 
                 else if(add == 1)
                 {
                      printf("Enter the name of book    ");
                      scanf("%s",bk.name);
                      printf("Enter the author     ");
                      scanf("%s",bk.author);
                      fwrite(&bk,sizeof(bk),1,fp);
                      fclose(fp);
                 }
}

fclose() flushes pending output (if any) and closes the file. You do not need to insert any EOF marker at the end. Functions that read the file will report EOF (or some derived condition, depending on how the function works) when they encounter end of file.

The representation of end-of-file is system dependent (it depends on host system, disk drivers, etc). Unless you are writing a device driver for a storage device, you do not need to worry about how end-of-file is actually represented. That is taken care of by I/O functions.

But I am caught in an infinte loop while reading the file to display the contents and though even if EOF at the end of the file is not necessary please still tell me how to....

Maybe you should...oh, I don't know...show us how you're opening and *reading* the file?

Originally Posted by Dushyant

But I am caught in an infinte loop while reading the file to display the contents and though even if EOF at the end of the file is not necessary please still tell me how to....

EOF isn't actually a value inside of files, you know.

Originally Posted by Dushyant

But I am caught in an infinte loop while reading the file to display the contents and though even if EOF at the end of the file is not necessary please still tell me how to....

No need to roll your eyes. You have asked a meaningless question.

If you are getting into an infinite loop reading a file, the problem is in a mismatch between code that wrote the file and code that reads the file. Such problems would not be fixed by somehow writing EOF at the end of file. They would be fixed by debugging your code.