#include <stdio.h>

// union for book
typedef union Book {
	char title[50];
	char author[50];
	int pages;
	double price;
} Book;

//Print book details
// Note that this is impossible since Book is a union, it cannot have all these details initialized at once
void print_book(Book *book) {
	printf("Title: %s\n", book->title);
	printf("Author: %s\n", book->author);
	printf("Number of Pages: %d\n", book->pages);
	printf("Price: %0.02f\n\n", book->price);
}

// Prints all books with price higher than threshold
void print_books_higher_than_threshold(Book arr[], int len, double threshold) {
	for(int i = 0; i < len; i++) {
		if(arr[i].price > threshold) {
			print_book(&arr[i]);
		}
	}
}

int main() {
	// Books to test function
	Book b1;
	b1.price = 2.99;
	Book b2;
	b2.price = 19.99;
	Book b3;
	b3.price = 99.99;
	Book b4;
	b4.price= 9.99;

	Book arr[] = {b1, b2, b3, b4};

	/* Ok so this kinda doesnt make sense. The threshold check only works if Book is set with a price. Kinda goes in
	 * line with the fact that union doesnt make sense at all here
	 * Also, when printing any book, since only 1 value is assigned (as its a union) the other fields are gibberish
	 * */
	print_books_higher_than_threshold(arr, sizeof(arr)/sizeof(arr[0]), 10.0);

}