Chris@16: /*
Chris@101:  *          Copyright Andrey Semashev 2007 - 2015.
Chris@16:  * Distributed under the Boost Software License, Version 1.0.
Chris@16:  *    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:  *          http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  */
Chris@16: /*!
Chris@16:  * \file   to_log.hpp
Chris@16:  * \author Andrey Semashev
Chris@16:  * \date   06.11.2012
Chris@16:  *
Chris@16:  * This header contains the \c to_log output manipulator.
Chris@16:  */
Chris@16: 
Chris@16: #ifndef BOOST_LOG_UTILITY_MANIPULATORS_TO_LOG_HPP_INCLUDED_
Chris@16: #define BOOST_LOG_UTILITY_MANIPULATORS_TO_LOG_HPP_INCLUDED_
Chris@16: 
Chris@16: #include <iosfwd>
Chris@16: #include <boost/mpl/bool.hpp>
Chris@16: #include <boost/log/detail/config.hpp>
Chris@16: #include <boost/log/utility/formatting_ostream_fwd.hpp>
Chris@16: #include <boost/log/detail/header.hpp>
Chris@16: 
Chris@16: #ifdef BOOST_HAS_PRAGMA_ONCE
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost {
Chris@16: 
Chris@16: BOOST_LOG_OPEN_NAMESPACE
Chris@16: 
Chris@16: /*!
Chris@16:  * \brief Generic manipulator for customizing output to log
Chris@16:  */
Chris@16: template< typename T, typename TagT = void >
Chris@16: class to_log_manip
Chris@16: {
Chris@16: public:
Chris@16:     //! Output value type
Chris@16:     typedef T value_type;
Chris@16:     //! Value tag type
Chris@16:     typedef TagT tag_type;
Chris@16: 
Chris@16: private:
Chris@16:     //! Reference to the value
Chris@16:     value_type const& m_value;
Chris@16: 
Chris@16: public:
Chris@16:     explicit to_log_manip(value_type const& value) : m_value(value) {}
Chris@16:     to_log_manip(to_log_manip const& that) : m_value(that.m_value) {}
Chris@16: 
Chris@16:     value_type const& get() const { return m_value; }
Chris@16: };
Chris@16: 
Chris@16: template< typename CharT, typename TraitsT, typename T, typename TagT >
Chris@16: inline std::basic_ostream< CharT, TraitsT >& operator<< (std::basic_ostream< CharT, TraitsT >& strm, to_log_manip< T, TagT > manip)
Chris@16: {
Chris@16:     strm << manip.get();
Chris@16:     return strm;
Chris@16: }
Chris@16: 
Chris@16: template< typename CharT, typename TraitsT, typename AllocatorT, typename T, typename TagT >
Chris@16: inline basic_formatting_ostream< CharT, TraitsT, AllocatorT >& operator<< (basic_formatting_ostream< CharT, TraitsT, AllocatorT >& strm, to_log_manip< T, TagT > manip)
Chris@16: {
Chris@16:     strm << manip.get();
Chris@16:     return strm;
Chris@16: }
Chris@16: 
Chris@16: template< typename T >
Chris@16: inline to_log_manip< T > to_log(T const& value)
Chris@16: {
Chris@16:     return to_log_manip< T >(value);
Chris@16: }
Chris@16: 
Chris@16: template< typename TagT, typename T >
Chris@16: inline to_log_manip< T, TagT > to_log(T const& value)
Chris@16: {
Chris@16:     return to_log_manip< T, TagT >(value);
Chris@16: }
Chris@16: 
Chris@16: BOOST_LOG_CLOSE_NAMESPACE // namespace log
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #include <boost/log/detail/footer.hpp>
Chris@16: 
Chris@16: #endif // BOOST_LOG_UTILITY_MANIPULATORS_TO_LOG_HPP_INCLUDED_