Errors in Program

Question 1 (basic classes):
Consider the following code.

Code:

#include <iostream>
using namespace std;
class Book {
Book(int numPages);
void SetPages(int numPages);
int GetPages() const;
private:
int pages;
}
Book::Book(int numPages) {
pages = numPages;
}
Book::SetPages(int numPages) {
pages = numPages;
}
int Book::GetPages() {
return pages;
}
int main() {
Book textbook;
textbook.SetPages(970);
int numPages = textbook.GetPages();
cout << "The textbook has " << numPages << " pages." << endl;
int ripout = 5;
textbook.SetPages(numPages - ripout);
cout << "I just tore out " << ripout << " pages." << endl;
cout << "It now has " << textbook.GetPages << " pages left." << endl;
return 0;
}

What errors are in this code? (There are at least 5.)

 

Hey inspiration! Try this,

Code:

#include <iostream>
template<class B1, class B2>
class MyBook {
 B1 book1;
 B2 book2;
public:
 MyBook(B1 b1, B2 b2) : book1(b1), book2(b2)
     {  }
 template<class B3, class B4>
 friend std::ostream& operator<<(std::ostream& os,
                                 const MyBook<B3, B4>&);
};
template<class B1, class B2>
std::ostream& operator<<(std::ostream& os,
                         const MyBook<B1, B2>& bb)
{
 std::cout<<"My book has " << bb.book1 << ' ' << "pages" << std::endl;
 std::cout<<"I just tore out " << bb.book1 - bb.book2 << ' ' << "pages" << std::endl;
 std::cout<<"My book now has " << bb.book2 << ' ' << "pages" << std::endl;
 return os;
}
int main()
{
 int a = 970;
 int b = 965;
 MyBook<int,double> my_twothings(a, b);
 std::cout << my_twothings << std::endl;
 return 0;
}

 

Thanks, You are great!

 

My Pleasure...