Email with Mailbox class; compilation error

[qwewq149]

It isn't suppose to output anything but it doesn't seem to compile.
im not sure whats wrong, if anyone could point me in the right direction.

#include <iostream>
#include <string>
#include <vector>
using namespace std;

class Email
{
	public:
	    Email();
	    Email(string sender, string recipient, string subject, string text);
	    string getSender();
	    string getSubject();
	    string getRecipient();
	    string getText();
	private:
	    string sender;
	    string recipient;
	    string subject;
	    string text;
};

Email:: Email(string sender, string recipient, string subject, string text)
{
	this->sender = sender;
	this->recipient = recipient;
	this->subject = subject;
	this->text = text;
}

string Email:: getSender()
{
	return sender;
}

class Mailbox
{
	public:
	    Mailbox();
	    void addmessage(Email newmessage);
	    vector<Email> getmessage(string sender);
	private:
	    vector<Email> messages;
};

void Mailbox:: addmessage (Email newmessage)
{
	messages.push_back(newmessage);
}

vector <Email> Mailbox:: getmessage(string sender)
{
	vector<Email> temp;
	    for(int i=0; i<messages.size();i++)
	    { if(messages[i].getSender()==sender)
		{
		   temp.push_back(messages[i]);
		}
	    }
	return temp;
}
int main()
{
    string s, r, sub, t;
    cout<<"input sender";
    cin>>s;
    cout<<"input subject";
    getline(cin,sub);
    Email m=Email(s,r,sub,t);
    Mailbox b = Mailbox();
	b.addmessage(m);
}

this is the error i get:

tmp/ccCa7DiT.o: In function `main':
problem3.cpp:(.text+0x397): undefined reference to `Mailbox::Mailbox()'
collect2: error: ld returned 1 exit status

[MaBunny]

You defined a constructor " Mailbox" but didnt define its body.

public:
	    Mailbox();

Define its body.Its because of this issue.

[TheIdeasMan]

Hi,

Line 69 is confused, maybe you meant:

Mailbox b;

[qwewq149]

Thanks guys, i got it, appreciate the help!!