C++ Multiple Inheritance (Virtual) Wierdness

main.cpp

// ConsoleApplication2.cpp : This file contains the 'main' function. Program execution begins and ends there.
//


#include <iostream>
#include <vector>

#define DEBUG( x ) std::cout << "[+] " << x << std::endl;

class Grandma {
	std::vector<int> x_;
protected:
	Grandma() {
		DEBUG( "Grandma")
	}
	int hello() {
		return 123;
	};


};


#define VIRTUALGMA virtual

class Ma1 : public VIRTUALGMA Grandma {
public:
	Ma1() {
		DEBUG("Ma1")
	}
	std::vector<int> y_;
};

class Ma2 : public VIRTUALGMA Grandma {
public:
	Ma2() {
		DEBUG("Ma2")
	}

};

#define VIRTUALME virtual

class Me :
	public VIRTUALME Ma2,
	public VIRTUALME Ma1
{
public:
	void eMe() {
		DEBUG( "Me" )
	}
};

#define VIRTUALYOU virtual

class You : public VIRTUALYOU  Me
{
public:
	You() : Me() {
		DEBUG( "You")
	}
};

int main()
{
    std::cout << "Hello World!\n"; 
	You* m = new You;
}