| io/book-read-prog.c - Programmet der indlæses bøger fra en input fil. | Lektion 13 - slide 28 : 32 Program 3  | 
#include <stdio.h>
#include "book-read-write.h"
int main(void) {
  book *b1, *b2;
  FILE *input_file;
  input_file = fopen("books.dat", "r");
  b1 = read_book(input_file);
  b2 = read_book(input_file);
  prnt_book(b1);   prnt_book(b2);
  fclose(input_file);
  return 0;
}