struct TestStruct
{
	static int defCtr, numCtr, cpyCtr, cpyEqr, movCtr, movEqr, dtr;
	
	int num; string str;
	
	TestStruct(int i) : num(i), str("number : " + to_string(i)) { numCtr++; }
	TestStruct() : num(-1), str("default") { defCtr++; }
	TestStruct(const TestStruct & rhs) { num = rhs.num; str = rhs.str; cpyCtr++; }
	TestStruct & operator = (const TestStruct & rhs)  { num = rhs.num; str = rhs.str; cpyEqr++; return *this; }
	TestStruct(TestStruct && rhs) noexcept { num = rhs.num; str.swap(rhs.str); movCtr++; }
	TestStruct& operator = (TestStruct && rhs) noexcept { num = rhs.num; str.swap(rhs.str); movEqr++; return *this; }
	~TestStruct() {	dtr++; }
	
	static string Report() { 
	    string ret = "defCtr: " + to_string(defCtr) + ", numCtr: "+ to_string(numCtr) + ", cpyCtr: " + to_string(cpyCtr) + ", cpyEqr: " + to_string(cpyEqr) + 
		    ". \n\r   movCtr: " + to_string(movCtr) + ", movEqr: " + to_string(movEqr) + ", dtr: " + to_string(dtr) + ".";
		defCtr = numCtr = cpyCtr = movCtr = cpyEqr = movEqr = dtr = 0;
		return ret;
	}
};

int TestStruct::defCtr = 0;
int TestStruct::numCtr = 0;
int TestStruct::cpyCtr = 0;
int TestStruct::movCtr = 0;
int TestStruct::cpyEqr = 0;
int TestStruct::movEqr = 0;
int TestStruct::dtr = 0;


int main()
{
    cout<<"Hello World\r\n";
    
    {
        deque <TestStruct> d1;
        d1.push_back(1);
        d1.push_back(2);
    }
    
    cout << "\r\nReport 1: " << TestStruct::Report();
    
    {
        deque <TestStruct> d2;
        d2.emplace_back(3);
        d2.emplace_back(4);
    }
    
    cout << "\r\nReport 2: " << TestStruct::Report();
    
    {
        deque <TestStruct> d3 { 5, 6 };
    }
    
    cout << "\r\nReport 3: " << TestStruct::Report();

    return 0;
}

Hello World                                                                                                                                                                
                                                                                                                                                                           
Report 1: defCtr: 0, numCtr: 2, cpyCtr: 0, cpyEqr: 0.                                                                                                                      
   movCtr: 2, movEqr: 0, dtr: 4.                                                                                                                                           
Report 2: defCtr: 0, numCtr: 2, cpyCtr: 0, cpyEqr: 0.                                                                                                                      
   movCtr: 0, movEqr: 0, dtr: 2.                                                                                                                                           
Report 3: defCtr: 0, numCtr: 2,  cpyCtr: 2 , cpyEqr: 0.                                                                                                                      
   movCtr: 0, movEqr: 0, dtr: 4.