Tilbage til slide -- Tastaturgenvej: 'u'  forrige -- Tastaturgenvej: 'p'                structures/books-alt.c - En variation der allokerer de tre tekststrenge inde i struct book.Lektion 12 - slide 11 : 35
Program 2

#include <stdio.h>
#include <string.h>
#define TITLE_MAX 50
#define AUTHOR_MAX 40
#define PUBLISHER_MAX 20

struct book {
  char title[TITLE_MAX], author[AUTHOR_MAX], publisher[PUBLISHER_MAX];
  int publishing_year;
  int university_text_book;
};

typedef struct book book;

book make_book(char *title, char *author, char *publisher, 
               int year, int text_book){
  book result;
  strcpy(result.title, title); strcpy(result.author, author); strcpy(result.publisher, publisher); 
  result.publishing_year = year;
  result.university_text_book = text_book;
 
  return result;
}

void prnt_book(book b){
  char *yes_or_no;

  yes_or_no = (b.university_text_book ? "yes" : "no"); 
  printf("Title: %s\n"
         "Author: %s\n"
         "Publisher: %s\n"
         "Year: %4i\n"
         "University text book: %s\n\n",
         b.title, b.author, b.publisher, 
         b.publishing_year, yes_or_no);
}

int main(void) {
  book b1, b2, b3;

  b1 = make_book("Problem Solving and Program Design in C", "Hanly & Koffman", 
                 "Pearson", 2010, 1);
  b2 = make_book("Pelle Erobreren", "Martin Andersen Nexoe",
                 "Gyldendal", 1910, 0);

  b3 = b2;
  strcpy(b3.title, "Ditte Menneskebarn"); b3.publishing_year = 1917;

  prnt_book(b1);  prnt_book(b2);   prnt_book(b3);

  printf("Sizeof(b1) = %d bytes\n", sizeof(book));  /* 120 bytes */
  
  return 0;
}