comparison DEPENDENCIES/generic/include/boost/mpl/zip_view.hpp @ 16:2665513ce2d3

Add boost headers
author Chris Cannam
date Tue, 05 Aug 2014 11:11:38 +0100
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children c530137014c0
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15:663ca0da4350 16:2665513ce2d3
1
2 #ifndef BOOST_MPL_ZIP_VIEW_HPP_INCLUDED
3 #define BOOST_MPL_ZIP_VIEW_HPP_INCLUDED
4
5 // Copyright Aleksey Gurtovoy 2000-2010
6 // Copyright David Abrahams 2000-2002
7 //
8 // Distributed under the Boost Software License, Version 1.0.
9 // (See accompanying file LICENSE_1_0.txt or copy at
10 // http://www.boost.org/LICENSE_1_0.txt)
11 //
12 // See http://www.boost.org/libs/mpl for documentation.
13
14 // $Id: zip_view.hpp 61591 2010-04-26 21:31:09Z agurtovoy $
15 // $Date: 2010-04-26 14:31:09 -0700 (Mon, 26 Apr 2010) $
16 // $Revision: 61591 $
17
18 #include <boost/mpl/transform.hpp>
19 #include <boost/mpl/begin_end.hpp>
20 #include <boost/mpl/iterator_tags.hpp>
21 #include <boost/mpl/next.hpp>
22 #include <boost/mpl/lambda.hpp>
23 #include <boost/mpl/deref.hpp>
24 #include <boost/mpl/aux_/na_spec.hpp>
25
26 namespace boost { namespace mpl {
27
28 template< typename IteratorSeq >
29 struct zip_iterator
30 {
31 typedef forward_iterator_tag category;
32 typedef typename transform1<
33 IteratorSeq
34 , deref<_1>
35 >::type type;
36
37 typedef zip_iterator<
38 typename transform1<
39 IteratorSeq
40 , mpl::next<_1>
41 >::type
42 > next;
43 };
44
45 template<
46 typename BOOST_MPL_AUX_NA_PARAM(Sequences)
47 >
48 struct zip_view
49 {
50 private:
51 typedef typename transform1< Sequences, mpl::begin<_1> >::type first_ones_;
52 typedef typename transform1< Sequences, mpl::end<_1> >::type last_ones_;
53
54 public:
55 typedef nested_begin_end_tag tag;
56 typedef zip_view type;
57 typedef zip_iterator<first_ones_> begin;
58 typedef zip_iterator<last_ones_> end;
59 };
60
61 BOOST_MPL_AUX_NA_SPEC(1, zip_view)
62
63 }}
64
65 #endif // BOOST_MPL_ZIP_VIEW_HPP_INCLUDED