What are the new features in C++11 promises?

Can you explain what C++11 promises are?

C++11 promises are a way to manage asynchronous operations, allowing you to set a value or an exception that can be retrieved later.

How do I create a promise in C++11?

You can create a promise using the std::promise class. Here's a simple example: std::promise<int> myPromise;.

What is the difference between a promise and a future?

A promise is used to set a value or an exception, while a future is used to retrieve that value or exception later.

Can you give me an example of using promises and futures together?

Sure! You can create a promise, get its future, and then set the value in a separate thread. Here's a code snippet to illustrate.