Chrono

    steady_clock::time_point t1 = steady_clock::now();    std::cout << "printing out 1000 stars...\n";    for (int i=0; i<1000; ++i) std::cout << "*";    std::cout << std::endl;    steady_clock::time_point t2 = steady_clock::now();    duration<double> time_span = duration_cast<duration<double>>(t2 - t1);    std::cout << "It took me " << time_span.count() << " seconds.";    std::cout << std::endl;