Chris@16: 
Chris@16: #ifndef BOOST_MPL_JOINT_VIEW_HPP_INCLUDED
Chris@16: #define BOOST_MPL_JOINT_VIEW_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Aleksey Gurtovoy 2000-2004
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. 
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/mpl for documentation.
Chris@16: 
Chris@101: // $Id$
Chris@101: // $Date$
Chris@101: // $Revision$
Chris@16: 
Chris@16: #include <boost/mpl/aux_/joint_iter.hpp>
Chris@16: #include <boost/mpl/plus.hpp>
Chris@16: #include <boost/mpl/size_fwd.hpp>
Chris@16: #include <boost/mpl/begin_end.hpp>
Chris@16: #include <boost/mpl/aux_/na_spec.hpp>
Chris@16: 
Chris@16: namespace boost { namespace mpl {
Chris@16: 
Chris@16: namespace aux {
Chris@16: struct joint_view_tag;
Chris@16: }
Chris@16: 
Chris@16: template<>
Chris@16: struct size_impl< aux::joint_view_tag >
Chris@16: {
Chris@16:     template < typename JointView > struct apply
Chris@16:       : plus<
Chris@16:             size<typename JointView::sequence1_>
Chris@16:           , size<typename JointView::sequence2_>
Chris@16:           >
Chris@16:     {};
Chris@16: };
Chris@16: 
Chris@16: template<
Chris@16:       typename BOOST_MPL_AUX_NA_PARAM(Sequence1_)
Chris@16:     , typename BOOST_MPL_AUX_NA_PARAM(Sequence2_)
Chris@16:     >
Chris@16: struct joint_view
Chris@16: {
Chris@16:     typedef typename mpl::begin<Sequence1_>::type   first1_;
Chris@16:     typedef typename mpl::end<Sequence1_>::type     last1_;
Chris@16:     typedef typename mpl::begin<Sequence2_>::type   first2_;
Chris@16:     typedef typename mpl::end<Sequence2_>::type     last2_;
Chris@16: 
Chris@16:     // agurt, 25/may/03: for the 'size_traits' implementation above
Chris@16:     typedef Sequence1_ sequence1_;
Chris@16:     typedef Sequence2_ sequence2_;
Chris@16: 
Chris@16:     typedef joint_view type;
Chris@16:     typedef aux::joint_view_tag tag;
Chris@16:     typedef joint_iter<first1_,last1_,first2_>  begin;
Chris@16:     typedef joint_iter<last1_,last1_,last2_>    end;
Chris@16: };
Chris@16: 
Chris@16: BOOST_MPL_AUX_NA_SPEC(2, joint_view)
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif // BOOST_MPL_JOINT_VIEW_HPP_INCLUDED