Return a function while daemon thread is working in the background (c++)

Question

I want to return function 'A' with some return value(let's say '0') while a daemon thread started running inside this function but may not finished. Is that even possible?

Answer 1

Just detach the thread and then return from the function.

int createThreadAndReturn() {
    std::thread(daemon_thread_function).detach();
    return 0;
}