#include <thread>
#include <atomic>
#include <chrono>
#include <iostream>
 
 
std::atomic_bool stop_thread;
std::thread thd;
 
int main()
{
    thd = std::thread([]{
        while ( ! stop_thread.load() )
            std::this_thread::sleep_for(std::chrono::milliseconds(200));
        atexit([] { std::cout << "Exit thread\n"; });
    });
 
    atexit([]{
        stop_thread.store(true);
        thd.join();
    });
 
    std::cout << "Exiting\n";
    return 0;
}
 
 

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