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 |
92 | |