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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 |