What are the best practices for using std::thread and std::async in C++?

What are the best practices for using std::thread and std::async in C++?

When using std::thread, ensure proper synchronization to avoid data races. For std::async, prefer using it for tasks that return a value.

Can you explain how to handle exceptions in std::async?

Certainly! You can handle exceptions in std::async by calling .get() on the future object, which will rethrow any exceptions that occurred.

What about resource management with std::thread?

It's crucial to join or detach threads before they go out of scope to prevent resource leaks. Always manage thread lifetimes carefully.

Are there any performance considerations I should be aware of?

Yes, creating too many threads can lead to overhead. Use thread pools or limit the number of concurrent threads based on your hardware.

How do I choose between std::thread and std::async?

Use std::thread for more control over thread management and std::async for simpler asynchronous tasks that return results.