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   feof

   Usage
   #include <stdio.h>
   int feof(FILE *fp);

   Description
   feof determines if the stream fp is at the end of file. After the  EOF
   indicator is set no further read operations are allowed.

   Example
   #include <stdio.h>
   #define BUFSIZE 128
   char buffer[BUFSIZE];
   main()
   {
   FILE *fp;
        fp = fopen ("file.dat", "r");

        while ( !feof(fp) )
             fgets(buffer, BUFSIZE, fp);

        printf("Done reading file, EOF found\n",buffer);
   }

   Return Value
   Non-zero (EOF flag set) if current position is end. No read operations
   are  allowed  after the flag is set. The flag is  cleared  if  rewind,
   fseek or file is closed. 0 if the flag is clear.