C++ matrix moving

output

clone
move
move
100 200 300

test.cpp

#include <vector>
#include <iostream>

struct Matrix
{
	std::vector<float> data;
	
	Matrix()
	{
		
	}
	
	Matrix(const Matrix& m) :
		data(m.data)
	{
		std::cout << "clone" << std::endl;
	}
	
	Matrix(Matrix&& m) :
		data(std::move(m.data))
	{
		std::cout << "move" << std::endl;
	}
	
	Matrix& operator= (Matrix&& m)
	{
		std::cout << "move" << std::endl;
		data = std::move(m.data);
		return *this;
	}
};

Matrix operator* (const Matrix& m, float f)
{
	Matrix m2(m);
	for(auto& v: m2.data)
		v *= f;
	return m2;
}

Matrix operator* (Matrix&& m, float f)
{
	Matrix m2(std::move(m));
	for(auto& v: m2.data)
		v *= f;
	return m2;
}

int main()
{
	Matrix m;
	m.data = {1.0, 2.0, 3.0};
	Matrix m2 = m * 2.0 * 5.0 * 10.0;
	
	for(auto v: m2.data)
	{
		std::cout << v << " ";
	}
	std::cout << std::endl;
}