#ifndef BOOST_MPL_AT_HPP_INCLUDED

 #define BOOST_MPL_AT_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.

 // $Source: /cvsroot/boost/boost/boost/mpl/at.hpp,v $

 // $Date: 2004/09/04 01:33:46 $

 // $Revision: 1.7 $

 #include <boost/mpl/at_fwd.hpp>

 #include <boost/mpl/aux_/at_impl.hpp>

 #include <boost/mpl/long.hpp>

 #include <boost/mpl/sequence_tag.hpp>

 #include <boost/mpl/aux_/na_spec.hpp>

 #include <boost/mpl/aux_/lambda_support.hpp>

 #include <boost/mpl/aux_/nttp_decl.hpp>

 namespace boost { namespace mpl {

 template<

       typename BOOST_MPL_AUX_NA_PARAM(Sequence)

     , typename BOOST_MPL_AUX_NA_PARAM(N)

     >

 struct at

     : at_impl< typename sequence_tag<Sequence>::type >

         ::template apply< Sequence,N >

 {

     BOOST_MPL_AUX_LAMBDA_SUPPORT(2,at,(Sequence,N))

 };

 template<

       typename Sequence

     , BOOST_MPL_AUX_NTTP_DECL(long, N)

     >

 struct at_c

     : at_impl< typename sequence_tag<Sequence>::type >

         ::template apply< Sequence,mpl::long_<N> >

 {

 };

 BOOST_MPL_AUX_NA_SPEC(2, at)

 }}

 #endif // BOOST_MPL_AT_HPP_INCLUDED