fwrite

#include <stdio.h>

U32 fwrite (
  const void *buffer,    /* data to write to file */
  U32 size,              /* size of each item */
  U32 count,             /* number of items to write */
  FILE *stream);         /* file stream to write to */

The fwrite function writes up to count items of size bytes from buffer to the file stream. The file pointer associated with stream is increased by the number of bytes actually written.

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

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

void tst_fwrite (void) {
   int count[10];
   FILE *fout;

   fout = fopen ("Counter.log","w");
   if (fout == NULL) {
      printf ("File open error!\n");
   }
   else {
      fwrite (&count[0], sizeof (int), 10, fout);
      fclose (fout);
   }
}