Function co_spawn

3rd/asio-1.24.0/include/asio/experimental/co_spawn.hpp:66–72

ASIO_INITFN_AUTO_RESULT_TYPE(
    CompletionToken, void(std::exception_ptr, T))
co_spawn(coro<void, T, Executor> c, CompletionToken&& token)
{
  auto exec = c.get_executor();
  return async_compose<CompletionToken, void(std::exception_ptr, T)>(
      detail::coro_spawn_op<void, T, Executor>{std::move(c)},
      token, exec);
}

/// Spawn a resumable coroutine.
/**