What is a promise in C++?

Can you explain what a promise is in C++?

Sure! A promise in C++ is a mechanism that allows you to manage asynchronous operations. It represents a value that may not be available yet.

How do I create a promise in C++?

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, while a future is used to retrieve that value. They work together to handle asynchronous tasks.

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

Certainly! You can create a promise, set its value, and then use a future to retrieve that value in another thread.