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();
  » more...

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);
  » more...

Requirements

Header: boost/asio/this_coro.hpp

Convenience header: boost/asio.hpp