1 /* 2 * Copyright Andrey Semashev 2007 - 2015. 3 * Distributed under the Boost Software License, Version 1.0. 4 * (See accompanying file LICENSE_1_0.txt or copy at 5 * http://www.boost.org/LICENSE_1_0.txt) 6 */ 7 /*! 8 * \file keyword_fwd.hpp 9 * \author Andrey Semashev 10 * \date 29.01.2012 11 * 12 * The header contains attribute keyword forward declaration. 13 */ 14 15 #ifndef BOOST_LOG_EXPRESSIONS_KEYWORD_FWD_HPP_INCLUDED_ 16 #define BOOST_LOG_EXPRESSIONS_KEYWORD_FWD_HPP_INCLUDED_ 17 18 #include <boost/log/detail/config.hpp> 19 20 #ifdef BOOST_HAS_PRAGMA_ONCE 21 #pragma once 22 #endif 23 24 namespace boost { 25 26 #ifndef BOOST_LOG_DOXYGEN_PASS 27 28 namespace phoenix { 29 30 template< typename > 31 struct actor; 32 33 } // namespace phoenix 34 35 #endif // BOOST_LOG_DOXYGEN_PASS 36 37 BOOST_LOG_OPEN_NAMESPACE 38 39 namespace expressions { 40 41 /*! 42 * \brief This class implements an expression template keyword 43 */ 44 template< typename DescriptorT, template< typename > class ActorT = phoenix::actor > 45 struct attribute_keyword; 46 47 } // namespace expressions 48 49 BOOST_LOG_CLOSE_NAMESPACE // namespace log 50 51 } // namespace boost 52 53 #endif // BOOST_LOG_EXPRESSIONS_KEYWORD_FWD_HPP_INCLUDED_ 54