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C++ Academy · Lesson

std::async and std::future Basics

Run tasks asynchronously and retrieve their results via std::future.

Asynchronous Tasks

std::async runs a function asynchronously and returns a std::future that delivers the result. A higher-level alternative to manually managing threads.

Basic Usage

Pass a callable and arguments. std::async returns a std::future<Result>.

#include <future>

int compute() { return 42; }

std::future<int> f = std::async(compute);
int result = f.get();   // blocks until done

All lessons in this course

  1. std::thread Joining and Detaching
  2. std::mutex lock_guard and unique_lock
  3. Condition Variables and Worker Patterns
  4. std::async and std::future Basics
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