// // detail/handler_cont_helpers.hpp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // // Copyright (c) 2003-2014 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // #ifndef BOOST_ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP #define BOOST_ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP #if defined(_MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include <boost/asio/detail/config.hpp> #include <boost/asio/detail/addressof.hpp> #include <boost/asio/handler_continuation_hook.hpp> #include <boost/asio/detail/push_options.hpp> // Calls to asio_handler_is_continuation must be made from a namespace that // does not contain overloads of this function. This namespace is defined here // for that purpose. namespace boost_asio_handler_cont_helpers { template <typename Context> inline bool is_continuation(Context& context) { #if !defined(BOOST_ASIO_HAS_HANDLER_HOOKS) return false; #else using boost::asio::asio_handler_is_continuation; return asio_handler_is_continuation( boost::asio::detail::addressof(context)); #endif } } // namespace boost_asio_handler_cont_helpers #include <boost/asio/detail/pop_options.hpp> #endif // BOOST_ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP