int main(void)
{
   FILE *stream;
   int i = 100;
   char c = 'C';
   float f = 1.234;       /* open a file for update */
   stream = fopen("DUMMY.FIL", "w ");       /* write some data to the screen */
   printf("%d %c %f", i, c, f);       /* write some data to the file */
   fprintf(stream, "%d %c %f", i, c, f);       /* close the file */
   fclose(stream);
   return 0;
}