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)
8 * \file bind_output.hpp
9 * \author Andrey Semashev
12 * This header contains a function object that puts the received value to the bound stream.
13 * This is a lightweight alternative to what Boost.Phoenix and Boost.Lambda provides.
16 #ifndef BOOST_LOG_UTILITY_FUNCTIONAL_BIND_OUTPUT_HPP_INCLUDED_
17 #define BOOST_LOG_UTILITY_FUNCTIONAL_BIND_OUTPUT_HPP_INCLUDED_
19 #include <boost/log/detail/config.hpp>
20 #include <boost/log/utility/functional/bind.hpp>
21 #include <boost/log/detail/header.hpp>
23 #ifdef BOOST_HAS_PRAGMA_ONCE
29 BOOST_LOG_OPEN_NAMESPACE
31 //! The function object that outputs its second operand to the first one
34 typedef void result_type;
36 template< typename StreamT, typename T >
37 void operator() (StreamT& strm, T const& val) const
43 template< typename StreamT >
44 BOOST_FORCEINLINE binder1st< output_fun, StreamT& > bind_output(StreamT& strm)
46 return binder1st< output_fun, StreamT& >(output_fun(), strm);
49 BOOST_LOG_CLOSE_NAMESPACE // namespace log
53 #include <boost/log/detail/footer.hpp>
55 #endif // BOOST_LOG_UTILITY_FUNCTIONAL_BIND_OUTPUT_HPP_INCLUDED_