What is async/await in C++?

What is async/await in C++?

Async/await in C++ is a programming pattern that allows you to write asynchronous code more easily, making it look like synchronous code.

How does it improve code readability?

It improves readability by allowing you to write asynchronous operations in a linear fashion, avoiding complex callback structures.

Can you give me a simple example?

Sure! Here's a simple example:

#include <future>
#include <iostream>

int asyncFunction() {
    std::this_thread::sleep_for(std::chrono::seconds(1));
    return 42;
}

int main() {
    auto future = std::async(std::launch::async, asyncFunction);
    std::cout << "Result: " << future.get() << std::endl;
}

This code runs asyncFunction asynchronously and retrieves the result.

What are the benefits of using async/await?

The benefits include improved code clarity, easier error handling, and better performance in I/O-bound applications.