63e88f80
 Hu Chunming
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#ifndef BOOST_MPL_JOINT_VIEW_HPP_INCLUDED
#define BOOST_MPL_JOINT_VIEW_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.
// $Id$
// $Date$
// $Revision$
#include <boost/mpl/aux_/joint_iter.hpp>
#include <boost/mpl/plus.hpp>
#include <boost/mpl/size_fwd.hpp>
#include <boost/mpl/begin_end.hpp>
#include <boost/mpl/aux_/na_spec.hpp>
namespace boost { namespace mpl {
namespace aux {
struct joint_view_tag;
}
template<>
struct size_impl< aux::joint_view_tag >
{
template < typename JointView > struct apply
: plus<
size<typename JointView::sequence1_>
, size<typename JointView::sequence2_>
>
{};
};
template<
typename BOOST_MPL_AUX_NA_PARAM(Sequence1_)
, typename BOOST_MPL_AUX_NA_PARAM(Sequence2_)
>
struct joint_view
{
typedef typename mpl::begin<Sequence1_>::type first1_;
typedef typename mpl::end<Sequence1_>::type last1_;
typedef typename mpl::begin<Sequence2_>::type first2_;
typedef typename mpl::end<Sequence2_>::type last2_;
// agurt, 25/may/03: for the 'size_traits' implementation above
typedef Sequence1_ sequence1_;
typedef Sequence2_ sequence2_;
typedef joint_view type;
typedef aux::joint_view_tag tag;
typedef joint_iter<first1_,last1_,first2_> begin;
typedef joint_iter<last1_,last1_,last2_> end;
};
BOOST_MPL_AUX_NA_SPEC(2, joint_view)
}}
#endif // BOOST_MPL_JOINT_VIEW_HPP_INCLUDED
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