What are some examples of asynchronous operations in C++?

What are some examples of asynchronous operations in C++?

Asynchronous operations in C++ allow tasks to run concurrently without blocking the main thread. Examples include using std::async, std::future, and threading with std::thread.

Can you explain how std::async works?

std::async is a function that runs a task asynchronously. It returns a std::future object, which can be used to retrieve the result once the task is complete.

What about error handling in asynchronous operations?

Error handling can be done using exceptions. If an exception occurs in an asynchronous task, it can be caught when accessing the result through the std::future.

Are there any performance considerations I should be aware of?

Yes, while asynchronous operations can improve responsiveness, they also introduce overhead. It's important to balance the number of concurrent tasks with system resources.