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
19namespace boost
20{
21 namespace range_detail
22 {
23
24template<class SinglePassRange1, class SinglePassRange2>
25class joined_type
26{
27public:
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
39namespace range
40{
41
42template<class SinglePassRange1, class SinglePassRange2>
43class 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;
54public:
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
64template<class SinglePassRange1, class SinglePassRange2>
65joined_range<const SinglePassRange1, const SinglePassRange2>
66join(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
74template<class SinglePassRange1, class SinglePassRange2>
75joined_range<SinglePassRange1, SinglePassRange2>
76join(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
86using ::boost::range::joined_range;
87using ::boost::range::join;
88
89} // namespace boost
90
91#endif // include guard
92

source code of boost/boost/range/join.hpp