/*
This has the same results as file4.c, but takes a different approach.
Note the use of fclose() to free memory associated to f.
*/

#include <stdio.h>

void die_read(void)
{
  fprintf(stderr,"file5: fatal: unable to read data.txt\n");
  exit(111);
}

void printfile(void)
{
  FILE *f;
  char c;

  f = fopen("data.txt","r");
  if (!f) die_read();

  while (fscanf(f,"%c",&c) == 1)
    putchar(c);

  if (ferror(f)) die_read();
  fclose(f);
}

int main(void)
{
  printfile();
  printfile();
  return 0;
}