#ifndef BOOST_MPL_PUSH_BACK_HPP_INCLUDED

 #define BOOST_MPL_PUSH_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.

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

 // $Date: 2004/09/02 15:40:42 $

 // $Revision: 1.4 $

 #include <boost/mpl/push_back_fwd.hpp>

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

 #include <boost/mpl/sequence_tag.hpp>

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

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

 namespace boost { namespace mpl {

 template<

       typename BOOST_MPL_AUX_NA_PARAM(Sequence)

     , typename BOOST_MPL_AUX_NA_PARAM(T)

     >

 struct push_back

     : push_back_impl< typename sequence_tag<Sequence>::type >

         ::template apply< Sequence,T >

 {

     BOOST_MPL_AUX_LAMBDA_SUPPORT(2,push_back,(Sequence,T))

 };

 template< 

       typename BOOST_MPL_AUX_NA_PARAM(Sequence)

     >

 struct has_push_back

     : has_push_back_impl< typename sequence_tag<Sequence>::type >

         ::template apply< Sequence >

 {

     BOOST_MPL_AUX_LAMBDA_SUPPORT(1,has_push_back,(Sequence))

 };

 BOOST_MPL_AUX_NA_SPEC(2, push_back)

 BOOST_MPL_AUX_NA_SPEC(1, has_push_back)

 }}

 #endif // BOOST_MPL_PUSH_BACK_HPP_INCLUDED