What are the best practices for using async in C++?

What are the best practices for using async in C++?

When using async in C++, it's important to manage resources carefully. Always ensure that you handle exceptions and avoid data races.

Can you explain how to handle exceptions in async tasks?

Certainly! You can use std::future to retrieve the result of an async task. If an exception occurs, it will be thrown when you call get() on the future.

What about managing shared resources between async tasks?

For shared resources, consider using mutexes or other synchronization mechanisms to prevent data races. Always lock the resource before accessing it.

Are there any performance considerations I should be aware of?

Yes, avoid excessive context switching and ensure that your tasks are sufficiently large to justify the overhead of async. Profiling can help identify bottlenecks.