#include <iostream>

using namespace std ;

class Holder
{
  public:

    Holder(int size)         // Constructor
    {
	  cout << "Argument constructor." << size << endl ;
      m_data = new int[size];
      m_size = size;
    }

	Holder(const Holder& other)
	{
      cout << "Copy constructor." << m_size <<  endl ;
	  m_data = new int[other.m_size];  // (1)
	  std::copy(other.m_data, other.m_data + other.m_size, m_data);  // (2)
	  m_size = other.m_size;
	}

	Holder(Holder&& other)     // <-- rvalue reference in input
	{
	  cout << "Move copy constructor." << other.m_size << endl ;
	  m_data = other.m_data;   // (1)
	  m_size = other.m_size;
	  other.m_data = nullptr;  // (2)
	  other.m_size = 0;
	}

    ~Holder()                // Destructor
    {
	  //cout << "Destructor." << m_size << endl ;
	  if ( m_data != NULL )
        delete[] m_data;
    }

  private:
    int*   m_data;
    size_t m_size;
};


Holder createHolder1(int size)
{
  return move(Holder(size)) ;
}


int main()
{
	//Copy constructor
    cout << "Move Copy attempt.\n" << endl ;

    Holder h2 = createHolder1(1000)  ;


    cout << "End of main." << endl ;
	return 0 ;
}