How can I use the C++ thread library for asynchronous programming?

How can I use the C++ thread library for asynchronous programming?

You can use the C++ thread library to create threads that run concurrently. This allows you to perform tasks asynchronously. Would you like an example?

Yes, please provide a simple example of using threads.

Sure! Here's a basic example:

#include <iostream>
#include <thread>

void printMessage() {
    std::cout << "Hello from the thread!" << std::endl;
}

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

This code creates a thread that runs the printMessage function.

What does t.join() do in this example?

The t.join() function call makes the main thread wait for the thread t to finish executing before continuing. This ensures that the program doesn't exit before the thread has completed its task.