How can I join a thread in C++11?

How can I join a thread in C++11?

In C++11, you can join a thread using the join() method of the std::thread class. After starting a thread, call thread.join() to wait for it to finish.

Can you show me a code example?

Sure! Here's a simple example:

#include <iostream>
#include <thread>

void threadFunction() {
    std::cout << "Thread is running!" << std::endl;
}

int main() {
    std::thread t(threadFunction);
    t.join(); // Wait for the thread to finish
    return 0;
}

What happens if I don't call join()?

If you don't call join(), the program may terminate before the thread finishes executing, leading to undefined behavior.

Are there any alternatives to join()?

Yes, you can use detach() if you want the thread to run independently, but you won't be able to synchronize with it.