How to start using coroutines
summary
C++20 coroutines are usable now but require plumbing: GCC 10, MSVC recent, Clang 8 (experimental) support the three keywords co_await/co_yield/co_return. Each coroutine return type must provide a promise type requires get_return_object initial_suspend final_suspend return_value unhandled_exception, awaiters need three methods, and frames live on the heap so destruction and destroy must be handled. A tiny library implements task, sync_wait and when_all, and a single‑threaded scheduler running three coroutines works, but integration, sync APIs and multithreading primitives remain manual work.
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chapters (15)
- 0:00Intro
- 0:28Plan
- 1:43Motivation
- 3:38Theory
- 4:25Steps of invocation
- 5:38Promise type
- 8:22Taskind
- 25:00Summary
- 25:36Call a protein
- 30:51Recap
- 31:20SyncWeight
- 32:51Conclusion
- 33:58Rewriting the code
- 37:12Why it doesnt work
- 40:31How to use it
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