| 1 | |
|---|---|
| 2 | #ifndef BOOST_MPL_JOINT_VIEW_HPP_INCLUDED |
| 3 | #define BOOST_MPL_JOINT_VIEW_HPP_INCLUDED |
| 4 | |
| 5 | // Copyright Aleksey Gurtovoy 2000-2004 |
| 6 | // |
| 7 | // Distributed under the Boost Software License, Version 1.0. |
| 8 | // (See accompanying file LICENSE_1_0.txt or copy at |
| 9 | // http://www.boost.org/LICENSE_1_0.txt) |
| 10 | // |
| 11 | // See http://www.boost.org/libs/mpl for documentation. |
| 12 | |
| 13 | // $Id$ |
| 14 | // $Date$ |
| 15 | // $Revision$ |
| 16 | |
| 17 | #include <boost/mpl/aux_/joint_iter.hpp> |
| 18 | #include <boost/mpl/plus.hpp> |
| 19 | #include <boost/mpl/size_fwd.hpp> |
| 20 | #include <boost/mpl/begin_end.hpp> |
| 21 | #include <boost/mpl/aux_/na_spec.hpp> |
| 22 | |
| 23 | namespace boost { namespace mpl { |
| 24 | |
| 25 | namespace aux { |
| 26 | struct joint_view_tag; |
| 27 | } |
| 28 | |
| 29 | template<> |
| 30 | struct size_impl< aux::joint_view_tag > |
| 31 | { |
| 32 | template < typename JointView > struct apply |
| 33 | : plus< |
| 34 | size<typename JointView::sequence1_> |
| 35 | , size<typename JointView::sequence2_> |
| 36 | > |
| 37 | {}; |
| 38 | }; |
| 39 | |
| 40 | template< |
| 41 | typename BOOST_MPL_AUX_NA_PARAM(Sequence1_) |
| 42 | , typename BOOST_MPL_AUX_NA_PARAM(Sequence2_) |
| 43 | > |
| 44 | struct joint_view |
| 45 | { |
| 46 | typedef typename mpl::begin<Sequence1_>::type first1_; |
| 47 | typedef typename mpl::end<Sequence1_>::type last1_; |
| 48 | typedef typename mpl::begin<Sequence2_>::type first2_; |
| 49 | typedef typename mpl::end<Sequence2_>::type last2_; |
| 50 | |
| 51 | // agurt, 25/may/03: for the 'size_traits' implementation above |
| 52 | typedef Sequence1_ sequence1_; |
| 53 | typedef Sequence2_ sequence2_; |
| 54 | |
| 55 | typedef joint_view type; |
| 56 | typedef aux::joint_view_tag tag; |
| 57 | typedef joint_iter<first1_,last1_,first2_> begin; |
| 58 | typedef joint_iter<last1_,last1_,last2_> end; |
| 59 | }; |
| 60 | |
| 61 | BOOST_MPL_AUX_NA_SPEC(2, joint_view) |
| 62 | |
| 63 | }} |
| 64 | |
| 65 | #endif // BOOST_MPL_JOINT_VIEW_HPP_INCLUDED |
| 66 |