#ifndef BOOST_MPL_AUX_UNWRAP_HPP_INCLUDED#define BOOST_MPL_AUX_UNWRAP_HPP_INCLUDED// Copyright Peter Dimov and Multi Media Ltd 2001, 2002// Copyright David Abrahams 2001//// 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)//// See http://www.boost.org/libs/mpl for documentation.// $Id: unwrap.hpp 49267 2008-10-11 06:19:02Z agurtovoy $// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $// $Revision: 49267 $#include <boost/ref.hpp>namespace boost { namespace mpl { namespace aux {template< typename F >inlineF& unwrap(F& f, long){    return f;}template< typename F >inlineF&unwrap(reference_wrapper<F>& f, int){    return f;}template< typename F >inlineF&unwrap(reference_wrapper<F> const& f, int){    return f;}}}}#endif // BOOST_MPL_AUX_UNWRAP_HPP_INCLUDED