...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Returns an awaitable object that may be used to determine whether the coroutine throws if trying to suspend when it has been cancelled.
constexpr unspecified throw_if_cancelled();
boost::asio::awaitable<void> my_coroutine() { if (co_await boost::asio::this_coro::throw_if_cancelled) // ... // ... }