How do I handle errors in C++ std::thread?

How do I handle errors in C++ std::thread?

In C++, you can handle errors in std::thread by using try-catch blocks within the thread function.

Can you give me an example of that?

Sure! Here's a simple example:

#include <iostream>
#include <thread>
#include <stdexcept>

void threadFunction() {
    throw std::runtime_error("Error occurred in thread");
}

int main() {
    try {
        std::thread t(threadFunction);
        t.join();
    } catch (const std::exception& e) {
        std::cerr << "Caught exception: " << e.what() << std::endl;
    }
    return 0;
}

What happens if I don't catch the exception?

If you don't catch the exception, the program will terminate and you may not get a clear error message.

Is there a way to pass errors back to the main thread?

Yes, you can use a shared variable or a future/promise to pass errors back to the main thread.