main.cpp

#include <iostream>
#include "A.h"

using namespace std; // Avoid extra typing, but is generally bad

int main() {
    A obj1; // Default Constructor
    cout << "obj1: " << obj1 << endl;
    A* ptr_obj1; // Doesn't call anything
    cout << "ptr_obj1: " << "nullptr" << endl;
    A obj2(obj1); // Copy Construction (could use {} instead)
    cout << "obj2: " << obj2 << endl;
    obj1 = obj2; // Copy Assignment
    cout << "obj1: " << obj1 << endl << "obj2: " << obj2 << endl;
    A obj3(std::move(obj2)); // Move Construction
    cout << "obj2: " << "NULL" << endl << "obj3: " << obj3 << endl;
    obj1 = std::move(obj3); // Move Assignment
    cout << "obj1: " << obj1 << endl << "obj3: " << "NULL" << endl;
    ptr_obj1 = new A(); // Default Constructor
    cout << "ptr_obj1: " << *ptr_obj1 << endl;
    delete ptr_obj1;
    return 0;
}