What are some examples of C++ futures?

Can you give me some examples of futures in C++?

Sure! In C++, futures are used for asynchronous programming. For example, you can use std::async to run a function asynchronously and get a future object that represents the result.

How do I use std::async with futures?

You can use std::async like this: std::future<int> result = std::async(std::launch::async, myFunction); This will run myFunction in a separate thread.

What happens if I try to get the result before it's ready?

If you call get() on a future before the result is ready, it will block until the result is available.

Are there any limitations to using futures in C++?

Yes, futures can only be used to retrieve a result once. If you try to get the result multiple times, it will throw an exception.