vector.cpp

#include <iostream>

template<class T, size_t N>
struct Vector { };

template<class T>
struct Vector <T,1>
{
	union {
		T e[1];
		struct {
			T x;
		};
	};
};

template<class T>
struct Vector <T,2>
{
	union {
		T e[2];
		struct {
			T x;
			T y;
		};
	};
};


int main()
{
	Vector<float,1> v1;
	Vector<float,2> v2;

	v2.x = 3;
	v2.y = 4;
	std::cout << v2.e[0] << ", " << v2.e[1] << std::endl;
	std::cout << sizeof(v2) << std::endl;
}