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| 2 | #ifndef BOOST_MPL_JOINT_VIEW_HPP_INCLUDED |
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| 3 | #define BOOST_MPL_JOINT_VIEW_HPP_INCLUDED |
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| 4 | |
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| 5 | // Copyright Aleksey Gurtovoy 2000-2004 |
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| 6 | // |
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| 7 | // Distributed under the Boost Software License, Version 1.0. |
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| 8 | // (See accompanying file LICENSE_1_0.txt or copy at |
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| 9 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 10 | // |
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| 11 | // See http://www.boost.org/libs/mpl for documentation. |
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| 12 | |
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| 13 | // $Source: /cvsroot/boost/boost/boost/mpl/joint_view.hpp,v $ |
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| 14 | // $Date: 2004/10/02 19:08:57 $ |
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| 15 | // $Revision: 1.8 $ |
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| 16 | |
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| 17 | #include <boost/mpl/aux_/joint_iter.hpp> |
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| 18 | #include <boost/mpl/plus.hpp> |
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| 19 | #include <boost/mpl/size_fwd.hpp> |
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| 20 | #include <boost/mpl/begin_end.hpp> |
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| 21 | #include <boost/mpl/aux_/na_spec.hpp> |
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| 22 | |
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| 23 | namespace boost { namespace mpl { |
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| 24 | |
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| 25 | namespace aux { |
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| 26 | struct joint_view_tag; |
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| 27 | } |
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| 28 | |
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| 29 | template<> |
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| 30 | struct size_impl< aux::joint_view_tag > |
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| 31 | { |
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| 32 | template < typename JointView > struct apply |
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| 33 | : plus< |
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| 34 | size<typename JointView::sequence1_> |
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| 35 | , size<typename JointView::sequence2_> |
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| 36 | > |
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| 37 | {}; |
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| 38 | }; |
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| 39 | |
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| 40 | template< |
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| 41 | typename BOOST_MPL_AUX_NA_PARAM(Sequence1_) |
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| 42 | , typename BOOST_MPL_AUX_NA_PARAM(Sequence2_) |
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| 43 | > |
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| 44 | struct joint_view |
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| 45 | { |
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| 46 | typedef typename mpl::begin<Sequence1_>::type first1_; |
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| 47 | typedef typename mpl::end<Sequence1_>::type last1_; |
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| 48 | typedef typename mpl::begin<Sequence2_>::type first2_; |
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| 49 | typedef typename mpl::end<Sequence2_>::type last2_; |
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| 50 | |
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| 51 | // agurt, 25/may/03: for the 'size_traits' implementation above |
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| 52 | typedef Sequence1_ sequence1_; |
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| 53 | typedef Sequence2_ sequence2_; |
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| 54 | |
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| 55 | typedef joint_view type; |
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| 56 | typedef aux::joint_view_tag tag; |
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| 57 | typedef joint_iter<first1_,last1_,first2_> begin; |
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| 58 | typedef joint_iter<last1_,last1_,last2_> end; |
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| 59 | }; |
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| 60 | |
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| 61 | BOOST_MPL_AUX_NA_SPEC(2, joint_view) |
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| 62 | |
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| 63 | }} |
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| 64 | |
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| 65 | #endif // BOOST_MPL_JOINT_VIEW_HPP_INCLUDED |
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