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C++20 · hard

4. C++20 Coroutines & Ranges

Stackless asynchronous state machines and composable views.

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C++20 adds native stackless coroutines (`co_await`, `co_yield`, `co_return`) and the Ranges library (`std::views::filter`, `std::views::transform`) for composable, lazy pipeline transformations.

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  2. 2. Re-read the code snippets and say out loud what each line does.
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Check your understanding

  1. 1. Which keyword yields values from a C++20 generator coroutine?

  2. 2. Are std::views pipelines evaluated eagerly or lazily in C++20?

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