#ifndef BOOST_MPL_VECTOR_AUX_BACK_HPP_INCLUDED #define BOOST_MPL_VECTOR_AUX_BACK_HPP_INCLUDED // Copyright Aleksey Gurtovoy 2000-2004 // // 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: back.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/mpl/back_fwd.hpp> #include <boost/mpl/next_prior.hpp> #include <boost/mpl/vector/aux_/at.hpp> #include <boost/mpl/vector/aux_/tag.hpp> #include <boost/mpl/aux_/config/typeof.hpp> #include <boost/mpl/aux_/config/ctps.hpp> namespace boost { namespace mpl { #if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES) template<> struct back_impl< aux::vector_tag > { template< typename Vector > struct apply : v_at< Vector , prior<typename Vector::size>::type::value > { }; }; #else #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) template< long n_ > struct back_impl< aux::vector_tag<n_> > { template< typename Vector > struct apply { typedef typename Vector::back type; }; }; #endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION #endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES }} #endif // BOOST_MPL_VECTOR_AUX_BACK_HPP_INCLUDED