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Undefined Reference Error in class

Carter205 (18)
Why am I getting this error?
When creating a class object array, similar to this it has worked before. Is it because of the loop it is in? or something else?
How would i correct this?

The reason I am using an array is because there is a comparison of two objects later on. 


useDatabase.cpp:(.text+0x2d5): undefined reference to `Books::Books()'
[Error] ld returned 1 exit status



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#include <iostream>
#include <string>
#include <vector>

using namespace std;

class Books
{
	private:
		string Title;
		string Publisher;
		int Year;
		vector<string> Author;
		int NumAuthors;
		
	public:
		//empty constructor
		Books();
		Books(const string& title, const string& publisher, int yearOfPublication, string*authors, int numAuthors);

};

//Book Constructor
Books::Books(const string& title, const string& publisher, int yearOfPublication, string* authors, int numAuthors)
{
	Title = title;
	Publisher = publisher;
	Year = yearOfPublication;
	
	
	Author = vector<string>();
	for(int i =0; i<numAuthors; i++)
	{
		Author.push_back(authors[i]);
	}

	NumAuthors = numAuthors;
	
}
 



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#include<iostream>
#include<string>
#include<fstream>

#include "Books.cpp"

int const MAX = 10;
using namespace std;

int main()
{
	Books arrayBooks[MAX] = Books();
	

		
        //THIS IS WHERE THE ERROR IS
        arrayBooks[k] = Books(title,publisher,yOp, authors, numAuth);	
        cout << arrayBooks[k];

	
	
}
Last edited on
Peter87 (11226)
You have forgot to define the Books default constructor.
Carter205 (18)
silly me. Thank you
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