| io/book-write-prog.c - Programmet der udskriver bøger på en output fil. | Lektion 13 - slide 28 : 32 Program 1  | 
#include <stdio.h>
#include "book-read-write.h"
int main(void) {
  book *b1, *b2;
  FILE *output_file;
  b1 = make_book("C by Dissection", "Kelly and Pohl", 
                  "Addison Wesley", 2002, 1);
  b2 = make_book("The C Programming Language", 
                  "Kernighhan and Ritchie",
                  "Prentice Hall", 1988, 1);
  output_file = fopen("books.dat", "w");
  print_book(b1, output_file);
  print_book(b2, output_file);
  fclose(output_file);
  return 0;
}