1 /* 2 * Copyright Andrey Semashev 2016. 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 sfinae_tools.hpp 9 * \author Andrey Semashev 10 * \date 23.02.2016 11 * 12 * \brief This header is the Boost.Log library implementation, see the library documentation 13 * at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html. 14 */ 15 16 #ifndef BOOST_LOG_DETAIL_SFINAE_TOOLS_HPP_INCLUDED_ 17 #define BOOST_LOG_DETAIL_SFINAE_TOOLS_HPP_INCLUDED_ 18 19 #include <boost/log/detail/config.hpp> 20 #include <boost/core/enable_if.hpp> 21 #include <boost/log/detail/header.hpp> 22 23 #ifdef BOOST_HAS_PRAGMA_ONCE 24 #pragma once 25 #endif 26 27 namespace boost { 28 29 BOOST_LOG_OPEN_NAMESPACE 30 31 namespace aux { 32 33 //! A distinct type that can be used as a fake argument type in constructors filtered by SFINAE 34 struct sfinae_dummy {}; 35 36 } // namespace aux 37 38 BOOST_LOG_CLOSE_NAMESPACE // namespace log 39 40 } // namespace boost 41 42 #include <boost/log/detail/footer.hpp> 43 44 #endif // BOOST_LOG_DETAIL_SFINAE_TOOLS_HPP_INCLUDED_ 45