feof

#include <stdio.h>

int feof (
  FILE *stream);    /* file stream to check */

The feof function determines if the end of stream has been reached. Once the end-of-file is reached, subsequent read operations return an end-of-file indicator until the file position changes (via a call to fseek or rewind).

The feof function is in the RL-FlashFS library. The prototype is defined in stdio.h.

#include <rtl.h>
#include <stdio.h>

void tst_feof (void) {
   FILE *fin;
   char ch;

   if (fin = fopen ("Test_feof") != NULL) {
      // Read all characters from the file
      while (!eof (fin)) {
         ch = fgetc (fin);
      }
      fclose (fin);
   }
}