driver.cpp

#include
	using namespace std;
	#include "book.h"
	#define MAX_BOOKS 5
	void setBooks(Book[]);
	void displayBooks(Book[]);
	void setPrice(Book&, const Book&);
	int main(){
	Book collection[MAX_BOOKS];
	setBooks(collection);
	displayBooks(collection);
	//copy constructor
	Book newBook = collection[0];
	newBook.setPrice(0);
	newBook.display();
	setPrice(newBook, collection[0]);
	newBook.display();
	}
	void setBooks(Book books[]){
	try{
	books[0].setTitle("The Fifth Season");
	books[0].setAuthor("N.K. Jemisin");
	books[0].setPublisher("Orbit");
	books[0].setYear(2015);
	books[0].setPrice(39.99);
	books[1].setTitle("The Marvelous Land of Oz");
	books[1].setAuthor("L. Frank Baum");
	books[1].setPublisher("Reilly & Britton");
	books[1].setYear(1904);
	books[1].setPrice(199.99);
	books[2].setTitle("The Hitchhiker's Guide to the Galaxy");
	books[2].setAuthor("Douglas Adams");
	books[2].setPublisher("Pan Books");
	books[2].setYear(10);
	books[2].setPrice(-9.98);
	books[3].setTitle("The Olive's Pit");
	books[3].setAuthor("Erin Keith");
	books[3].setPublisher("Bantam");
	books[3].setYear(2049); //ruh roh!
	//nothing after the exception occurs executes
	books[3].setPrice(19.97);
	books[4].setTitle("The Gunslinger");
	books[4].setAuthor("Stephen King");
	books[4].setPublisher("Grant");
	books[4].setYear(1982);
	books[4].setPrice(9.99);
	}
	//but the program doesn't break because we catch it here
	catch(const char* e){
	cout << e << endl << endl;
	}
	}
	void displayBooks(Book books[]){
	for(int i = 0; i < MAX_BOOKS; i++){
	cout << "*****" << i + 1 << "*****" << endl;
	books[i].display(); cout << endl;
	}
	}
	//we want to change the destination, not the source
	void setPrice(Book& destination, const Book& source){
	if(destination.getTitle() == source.getTitle()){
	destination.setPrice(source.getPrice());
	}
	}

book.cpp

#include "book.h"
	#include
	const float MIN_PRICE = .25;
	const int MIN_YEAR = 1436;
	const int MAX_YEAR = 2020;
	using namespace std;
	Book::Book(){
	title = "";
	author = "";
	publisher = "";
	copyrightYear = MAX_YEAR;
	price = MIN_PRICE;
	}
	Book::Book(string newTitle, string newAuthor, int newYear, double newPrice){
	setTitle(newTitle);
	setAuthor(newAuthor);
	publisher = "";
	setYear(newYear);
	setPrice(newPrice);
	}
	Book::Book(string newTitle, string newAuthor, string newPublisher, int newYear, double newPrice){
	setTitle(newTitle);
	setAuthor(newAuthor);
	setPublisher(newPublisher);
	setYear(newYear);
	setPrice(newPrice);
	}
	Book::Book(const Book& rhs){
	title = rhs.title;
	author = rhs.author;
	publisher = rhs.publisher;
	copyrightYear = rhs.copyrightYear;
	price = rhs.price;
	}
	string Book::getTitle() const{
	return title;
	}
	string Book::getAuthor() const{
	return author;
	}
	string Book::getPublisher() const{
	return publisher;
	}
	int Book::getYear() const{
	return copyrightYear;
	}
	double Book::getPrice() {
	return price;
	}
	void Book::setTitle(string newTitle){
	title = newTitle;
	}
	void Book::setAuthor(string newAuthor){
	author = newAuthor;
	}
	void Book::setPublisher(string newPublisher){
	publisher = newPublisher;
	}
	void Book::setYear(int newYear){
	if(newYear < MIN_YEAR || newYear > MAX_YEAR){
	stringstream error; // slow but works. Better would be format, but only available in C++ 20
	error << "Invalid copyright year \"" << newYear << "\" for book " << title;
	throw invalid_argument(error.str());
	}
	else{
	copyrightYear = newYear;
	}
	}
	void Book::setPrice(double newPrice){
	if(newPrice < MIN_PRICE){
	price = MIN_PRICE;
	}
	else{
	price = newPrice;
	}
	}
	void Book::display(){
	if(valid()) {
	cout << title << ": " << author << endl;
	cout << publisher << ", " << copyrightYear << endl;
	cout << "$" << price << endl;
	} else {
	cout << "This book has incomplete or corrupt data" << endl;
	}
	}
	bool Book::valid() const {
	return !(title.empty() || author.empty() || publisher.empty());
	}

book.h

#ifndef BOOK_H
	#define BOOK_H
	#include
	#include
	class Book{
	string title, author, publisher;
	double price;
	int copyrightYear;
	public:
	Book();
	Book(string, string, int, double);
	Book(string, string, string, int, double);
	Book(const Book&);
	bool valid() const;
	string getTitle() const;
	string getAuthor() const;
	string getPublisher() const;
	int getYear() const;
	double getPrice();
	void setTitle(string);
	void setAuthor(string);
	void setPublisher(string);
	void setYear(int);
	void setPrice(double);
	void display();
	};
	#endif

Cant fix the compile error and the run time error.