boost/log/expressions/formatters/stream.hpp
/* * Copyright Andrey Semashev 2007 - 2015. * 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) */ /*! * \file stream.hpp * \author Andrey Semashev * \date 24.07.2012 * * The header contains implementation of a stream placeholder in template expressions. */ #ifndef BOOST_LOG_EXPRESSIONS_FORMATTERS_STREAM_HPP_INCLUDED_ #define BOOST_LOG_EXPRESSIONS_FORMATTERS_STREAM_HPP_INCLUDED_ #include <boost/phoenix/core/argument.hpp> #include <boost/log/detail/config.hpp> #include <boost/log/detail/header.hpp> #ifdef BOOST_HAS_PRAGMA_ONCE #pragma once #endif namespace boost { BOOST_LOG_OPEN_NAMESPACE namespace expressions { /*! * Stream placeholder type in formatter template expressions. */ typedef phoenix::expression::argument< 2 >::type stream_type; /*! * Stream placeholder in formatter template expressions. */ BOOST_INLINE_VARIABLE const stream_type stream = {}; } // namespace expressions BOOST_LOG_CLOSE_NAMESPACE // namespace log } // namespace boost #include <boost/log/detail/footer.hpp> #if defined(BOOST_LOG_EXPRESSIONS_ATTR_HPP_INCLUDED_) #include <boost/log/detail/attr_output_impl.hpp> #endif #endif // BOOST_LOG_EXPRESSIONS_FORMATTERS_STREAM_HPP_INCLUDED_