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

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

Some best practices include using std::async for launching tasks, managing thread lifetimes, and avoiding shared state.

How can I handle exceptions in async tasks?

You can use std::future to retrieve exceptions thrown in async tasks. Make sure to check the future's status before accessing its result.

What about performance considerations?

It's important to minimize context switching and avoid excessive thread creation. Use thread pools for better performance.

Can you give an example of using std::async?

Sure! Here's a simple example: std::future<int> result = std::async(std::launch::async, { return 42; });