...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 specify whether the coroutine throws if trying to suspend when it has been cancelled.
constexpr unspecified throw_if_cancelled( bool value);
boost::asio::awaitable<void> my_coroutine() { co_await boost::asio::this_coro::throw_if_cancelled(false); // ... }