C++ Object Lifetime

lifetime.cpp

// https://godbolt.org/z/4xh9KEzx8
#include <iostream>

namespace as {
struct lifetime {
    lifetime() { std::cout << "lifetime default constructor\n"; }
    lifetime(const lifetime &) { std::cout << "lifetime copy constructor\n"; }
    lifetime(lifetime &&) noexcept {
        std::cout << "lifetime move constructor\n";
    }
    lifetime &operator=(const lifetime &) {
        std::cout << "lifetime copy assignment operator\n";
        return *this;
    }
    lifetime &operator=(lifetime &&) noexcept {
        std::cout << "lifetime move assignment operator\n";
        return *this;
    }
    ~lifetime() { std::cout << "lifetime destructor\n"; }
};
}  // namespace as

int main() {
    using as::lifetime;

    std::cout << "Creating an object using the default constructor:\n";
    lifetime obj1;

    std::cout << "\nCreating another object as a copy of the first one:\n";
    lifetime obj2 = obj1;

    std::cout << "\nCreating a third object using the move constructor:\n";
    lifetime obj3 = std::move(obj2);

    std::cout << "\nAssigning the second object to the third one using the "
                 "copy assignment operator:\n";
    obj3 = obj1;

    std::cout << "\nAssigning the first object to the third one using the move "
                 "assignment operator:\n";
    obj3 = std::move(obj1);

    std::cout << "\nExiting the main function, objects will be destroyed:\n";
    return 0;
}