#include <iostream>
#include <thread>

static bool is_finished = false;

void DoWork()
{
    while (!is_finished)
    {
        using namespace std::literals::chrono_literals;

        std::cout << "working...\n";
        std::this_thread::sleep_for(1s);
    }
}

int main()
{
    std::thread worker(DoWork);

    std::cin.get();
    is_finished = true;

    worker.join();
    std::cout << "Finished!" << std::endl;

    std::cin.get();
    return 0;
}