/* bkClass2.cpp by detour@metalshell.com
 *
 * bkClass.cpp with the addition of a constructor
 * and deconstructor.
 *
 * http://www.metalshell.com/
 *
 */

#include <string>
#include <iostream>

class Book {
	private:
		int pages;
		/* If you use dynamic memory you'll need
		   a deconstructor to free it */
		char *Author;
		char ISBN[14];
	public:
		/* A constructor that takes no args, it is
		   called everytime an instance of the class
		   is made.  Initial data is set in the 
		   constructor.  */
		Book() {
			pages = 0;
			strcpy(ISBN, "F-FFF-FFFFF-F");
			Author = NULL;
		}
		/* Overloaded constructor that takes all the data
		   when it is created */
		Book(char *nISBN, int npages, char *nAuthor) {
			setPages(npages);
			setISBN(nISBN);
			setAuthor(nAuthor);
		}
		/* The deconstructor is called when the object
		   goes out of scope */
		~Book() {
			delete Author;
		}
		void setISBN(char *nISBN) {
			if(strlen(nISBN) < 14)
				strcpy(ISBN, nISBN);
		}
		void setPages(int npages) {
			pages = npages;
		}
		void setAuthor(char *nAuthor) {
			Author = new char[strlen(nAuthor)+1];
			strcpy(Author,nAuthor);
		}
		void displayData() {
			cout << "********  Book  ********\n";
			if(Author != NULL)
				cout << "* Author: " << Author << endl;
			cout << "* ISBN:   " << ISBN << endl;
			cout << "* Pages:  " << pages << endl;
			cout << "************************\n";
		}
};

int main() {
	/* Constructor with no args is called */
	Book myBook;
	/* Constructor that takes everything is called */
	Book myBook2("0-451-16953-0", 1138, "Stephen King");

	myBook.setISBN("0-671-04191-6");
	myBook.setPages(296);
	myBook.setAuthor("Art Bell");
	myBook.displayData();

	myBook2.displayData();
 
	return 0;
}