class Vector {
private:
	double *vec;
public:
	Vector() : vec(NULL) {}
	Vector(double a, double b)
	{
		vec = new double[2];
		vec[0] = a;
		vec[1] = b;
	}
	~Vector() {
		if (vec) {
			delete[] vec;
			vec = NULL;
		}
	}
	void disp() {
		if (vec)	cout << vec[0] << " " << vec[1] << endl;
		else cout << "NULL" << endl;
	}
	Vector & operator=(Vector &p) {
		if (p.vec) {
			if (this->vec) {
				vec[0] = p.vec[0];
				vec[1] = p.vec[1];
				return *this;
			}
			else {
				this->vec = new double[2];
				vec[0] = p.vec[0];
				vec[1] = p.vec[1];
				return *this;
			}
		}
		else {
			if (this->vec) {
				delete[] this->vec;
				this->vec = NULL;
				return *this;
			}
		} return *this;
	}

	Vector operator*(Vector &(&p)) {
		return *this;
	}

};

int main()
{
	Vector a(1, 2), b(2, 3), c;
	a.disp();
	b.disp();
	c.disp();
	c = a;
	c.disp();

	c=a*(&b);
	c.disp();

	system("PAUSE");
    return 0;
}