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1 | // Boost.Range library |
2 | // | |
3 | // Copyright Neil Groves 2009. Use, modification and | |
4 | // distribution is subject to the Boost Software License, Version | |
5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
6 | // http://www.boost.org/LICENSE_1_0.txt) | |
7 | // | |
8 | // | |
9 | // For more information, see http://www.boost.org/libs/range/ | |
10 | // | |
11 | #ifndef BOOST_RANGE_JOIN_HPP_INCLUDED | |
12 | #define BOOST_RANGE_JOIN_HPP_INCLUDED | |
13 | ||
14 | #include <boost/config.hpp> | |
15 | #include <boost/range/detail/join_iterator.hpp> | |
16 | #include <boost/range/concepts.hpp> | |
17 | #include <boost/range/iterator_range.hpp> | |
18 | ||
19 | namespace boost | |
20 | { | |
21 | namespace range_detail | |
22 | { | |
23 | ||
24 | template<class SinglePassRange1, class SinglePassRange2> | |
25 | class joined_type | |
26 | { | |
27 | public: | |
28 | typedef iterator_range< | |
29 | range_detail::join_iterator< | |
30 | BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange1>::type, | |
31 | BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type, | |
32 | BOOST_DEDUCED_TYPENAME range_value<SinglePassRange1>::type | |
33 | > | |
34 | > type; | |
35 | }; | |
36 | ||
37 | } // namespace range_detail | |
38 | ||
39 | namespace range | |
40 | { | |
41 | ||
42 | template<class SinglePassRange1, class SinglePassRange2> | |
43 | class joined_range | |
44 | : public range_detail::joined_type<SinglePassRange1, SinglePassRange2>::type | |
45 | { | |
46 | typedef range_detail::join_iterator< | |
47 | BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange1>::type, | |
48 | BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type, | |
49 | BOOST_DEDUCED_TYPENAME range_value<SinglePassRange1>::type | |
50 | > iterator_t; | |
51 | ||
52 | typedef BOOST_DEDUCED_TYPENAME range_detail::joined_type< | |
53 | SinglePassRange1, SinglePassRange2>::type base_t; | |
54 | public: | |
55 | joined_range(SinglePassRange1& rng1, SinglePassRange2& rng2) | |
56 | : base_t( | |
57 | iterator_t(rng1, rng2, range_detail::join_iterator_begin_tag()), | |
58 | iterator_t(rng1, rng2, range_detail::join_iterator_end_tag()) | |
59 | ) | |
60 | { | |
61 | } | |
62 | }; | |
63 | ||
64 | template<class SinglePassRange1, class SinglePassRange2> | |
65 | joined_range<const SinglePassRange1, const SinglePassRange2> | |
66 | join(const SinglePassRange1& r1, const SinglePassRange2& r2) | |
67 | { | |
68 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> )); | |
69 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> )); | |
70 | ||
71 | return joined_range<const SinglePassRange1, const SinglePassRange2>(r1, r2); | |
72 | } | |
73 | ||
74 | template<class SinglePassRange1, class SinglePassRange2> | |
75 | joined_range<SinglePassRange1, SinglePassRange2> | |
76 | join(SinglePassRange1& r1, SinglePassRange2& r2) | |
77 | { | |
78 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> )); | |
79 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> )); | |
80 | ||
81 | return joined_range<SinglePassRange1, SinglePassRange2>(r1, r2); | |
82 | } | |
83 | ||
84 | } // namespace range | |
85 | ||
86 | using ::boost::range::joined_range; | |
87 | using ::boost::range::join; | |
88 | ||
89 | } // namespace boost | |
90 | ||
91 | #endif // include guard |