C++ Coroutines: A Deep Dive into Customization
2025-07-13
C++ coroutines aren't a ready-to-use library like `std::vector`; they're a specification defining customization points requiring implementation by library writers. Extending the function concept, they support suspend, resume, and destroy operations. The `co_await` keyword marks a coroutine, and `Task::promise_type` customizes behavior at call, return, suspend, and resume points. The `awaiter` and `awaitable` mechanisms handle suspension and resumption, enabling resumption when dependencies are ready, providing flexible asynchronous programming.
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