text: //
  // Created by 86133 on 29/5/2020.
  //
  
  #ifndef LIBRARY_BOOK_H
  #define LIBRARY_BOOK_H
  
  #include <stdbool.h>
  
  typedef struct BOOK{
      char* title;
      char* ISBN;
      int id;
  } Book;
  
  Book* creat_book(char* title, char* ISBN);
  
  bool equals(Book* book1, Book* book2);
  
  void print_book(Book* book);
  
  void* free_book(Book* book);
  
  #endif //LIBRARY_BOOK_H
  