unsigned int n = std::thread::hardware_concurrency();

std::cout << n << " concurrent threads are supported.\n";

std::atomic<int> a {1};

//for(int i = 0; i<100000; i++)

try

{

while(a > 0)

{

std::thread([&](){

while(1)

{

//a ++;

//std::cout<<a<<std::endl;

std::thread::id this_id = std::this_thread::get_id();

std::cout << this_id <<"\n";

std::this_thread::sleep_for(std::chrono::milliseconds(10000));

}

}).detach();

a ++;

}

}

catch(const std::exception& e)

{

std::cerr << e.what() << "max number of threads "<<a<<'\n';

return 0; // if uncomment this return, then although the error, progrma will continue

}

while(1);

}