nrvo.cpp

   #include <iostream>
    using namespace std;
    

    class X {
        public:
            X() {
                cout << "Constructor 1" << endl;
            }
            X(const X& h) { 
                cout << "Contsructor 2" << endl;        
            }

    };

    X test() {
        X a;
        cout << &a << endl;
        return a;
    }

    int main() {
        X b = test();
        cout << &b << endl;
        return 0;
    }