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   bind_assign.hpp
Chris@16:  * \author Andrey Semashev
Chris@16:  * \date   30.03.2008
Chris@16:  *
Chris@16:  * This header contains a function object that assigns the received value to the bound object.
Chris@16:  * This is a lightweight alternative to what Boost.Phoenix and Boost.Lambda provides.
Chris@16:  */
Chris@16: 
Chris@16: #ifndef BOOST_LOG_UTILITY_FUNCTIONAL_BIND_ASSIGN_HPP_INCLUDED_
Chris@16: #define BOOST_LOG_UTILITY_FUNCTIONAL_BIND_ASSIGN_HPP_INCLUDED_
Chris@16: 
Chris@16: #include <boost/log/detail/config.hpp>
Chris@16: #include <boost/log/utility/functional/bind.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: //! The function object that assigns its second operand to the first one
Chris@16: struct assign_fun
Chris@16: {
Chris@16:     typedef void result_type;
Chris@16: 
Chris@16:     template< typename LeftT, typename RightT >
Chris@16:     void operator() (LeftT& assignee, RightT const& val) const
Chris@16:     {
Chris@16:         assignee = val;
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: template< typename AssigneeT >
Chris@16: BOOST_FORCEINLINE binder1st< assign_fun, AssigneeT& > bind_assign(AssigneeT& assignee)
Chris@16: {
Chris@16:     return binder1st< assign_fun, AssigneeT& >(assign_fun(), assignee);
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_FUNCTIONAL_BIND_ASSIGN_HPP_INCLUDED_