1// 2// detail/handler_cont_helpers.hpp 3// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4// 5// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com) 6// 7// Distributed under the Boost Software License, Version 1.0. (See accompanying 8// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 9// 10 11#ifndef ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP 12#define ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP 13 14 15#include "asio/detail/config.hpp" 16#include "asio/detail/addressof.hpp" 17#include "asio/handler_continuation_hook.hpp" 18 19#include "asio/detail/push_options.hpp" 20 21// Calls to asio_handler_is_continuation must be made from a namespace that 22// does not contain overloads of this function. This namespace is defined here 23// for that purpose. 24namespace asio_handler_cont_helpers { 25 26template <typename Context> 27inline bool is_continuation(Context& context) 28{ 29#if !defined(ASIO_HAS_HANDLER_HOOKS) 30 return false; 31#else 32 using asio::asio_handler_is_continuation; 33 return asio_handler_is_continuation( 34 asio::detail::addressof(context)); 35#endif 36} 37 38} // namespace asio_handler_cont_helpers 39 40#include "asio/detail/pop_options.hpp" 41 42#endif // ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP 43