sl@0: 
sl@0: #ifndef BOOST_MPL_AT_HPP_INCLUDED
sl@0: #define BOOST_MPL_AT_HPP_INCLUDED
sl@0: 
sl@0: // Copyright Aleksey Gurtovoy 2000-2004
sl@0: //
sl@0: // Distributed under the Boost Software License, Version 1.0. 
sl@0: // (See accompanying file LICENSE_1_0.txt or copy at 
sl@0: // http://www.boost.org/LICENSE_1_0.txt)
sl@0: //
sl@0: // See http://www.boost.org/libs/mpl for documentation.
sl@0: 
sl@0: // $Source: /cvsroot/boost/boost/boost/mpl/at.hpp,v $
sl@0: // $Date: 2004/09/04 01:33:46 $
sl@0: // $Revision: 1.7 $
sl@0: 
sl@0: #include <boost/mpl/at_fwd.hpp>
sl@0: #include <boost/mpl/aux_/at_impl.hpp>
sl@0: #include <boost/mpl/long.hpp>
sl@0: #include <boost/mpl/sequence_tag.hpp>
sl@0: #include <boost/mpl/aux_/na_spec.hpp>
sl@0: #include <boost/mpl/aux_/lambda_support.hpp>
sl@0: #include <boost/mpl/aux_/nttp_decl.hpp>
sl@0: 
sl@0: namespace boost { namespace mpl {
sl@0: 
sl@0: template<
sl@0:       typename BOOST_MPL_AUX_NA_PARAM(Sequence)
sl@0:     , typename BOOST_MPL_AUX_NA_PARAM(N)
sl@0:     >
sl@0: struct at
sl@0:     : at_impl< typename sequence_tag<Sequence>::type >
sl@0:         ::template apply< Sequence,N >
sl@0: {
sl@0:     BOOST_MPL_AUX_LAMBDA_SUPPORT(2,at,(Sequence,N))
sl@0: };
sl@0: 
sl@0: template<
sl@0:       typename Sequence
sl@0:     , BOOST_MPL_AUX_NTTP_DECL(long, N)
sl@0:     >
sl@0: struct at_c
sl@0:     : at_impl< typename sequence_tag<Sequence>::type >
sl@0:         ::template apply< Sequence,mpl::long_<N> >
sl@0: {
sl@0: };
sl@0: 
sl@0: BOOST_MPL_AUX_NA_SPEC(2, at)
sl@0: 
sl@0: }}
sl@0: 
sl@0: #endif // BOOST_MPL_AT_HPP_INCLUDED