[3428] | 1 | // Boost.Range library |
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| 2 | // |
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| 3 | // Copyright Neil Groves 2009. Use, modification and |
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| 4 | // distribution is subject to the Boost Software License, Version |
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| 5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 6 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 7 | // |
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| 8 | // |
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| 9 | // For more information, see http://www.boost.org/libs/range/ |
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| 10 | // |
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| 11 | #ifndef BOOST_RANGE_JOIN_HPP_INCLUDED |
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| 12 | #define BOOST_RANGE_JOIN_HPP_INCLUDED |
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| 13 | |
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| 14 | #include <boost/config.hpp> |
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| 15 | #include <boost/range/detail/join_iterator.hpp> |
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| 16 | #include <boost/range/concepts.hpp> |
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| 17 | #include <boost/range/iterator_range.hpp> |
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| 18 | |
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| 19 | namespace boost |
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| 20 | { |
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| 21 | namespace range_detail |
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| 22 | { |
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| 23 | |
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| 24 | template<class SinglePassRange1, class SinglePassRange2> |
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| 25 | class joined_type |
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| 26 | { |
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| 27 | public: |
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| 28 | typedef iterator_range< |
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| 29 | range_detail::join_iterator< |
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| 30 | BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange1>::type, |
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| 31 | BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type, |
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| 32 | BOOST_DEDUCED_TYPENAME range_value<SinglePassRange1>::type |
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| 33 | > |
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| 34 | > type; |
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| 35 | }; |
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| 36 | |
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| 37 | } // namespace range_detail |
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| 38 | |
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| 39 | template<class SinglePassRange1, class SinglePassRange2> |
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| 40 | class joined_range |
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| 41 | : public range_detail::joined_type<SinglePassRange1, SinglePassRange2>::type |
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| 42 | { |
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| 43 | typedef range_detail::join_iterator< |
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| 44 | BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange1>::type, |
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| 45 | BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type, |
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| 46 | BOOST_DEDUCED_TYPENAME range_value<SinglePassRange1>::type |
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| 47 | > iterator_t; |
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| 48 | |
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| 49 | typedef BOOST_DEDUCED_TYPENAME range_detail::joined_type< |
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| 50 | SinglePassRange1, SinglePassRange2>::type base_t; |
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| 51 | public: |
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| 52 | joined_range(SinglePassRange1& rng1, SinglePassRange2& rng2) |
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| 53 | : base_t( |
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| 54 | iterator_t(rng1, rng2, range_detail::join_iterator_begin_tag()), |
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| 55 | iterator_t(rng1, rng2, range_detail::join_iterator_end_tag()) |
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| 56 | ) |
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| 57 | { |
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| 58 | } |
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| 59 | }; |
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| 60 | |
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| 61 | template<class SinglePassRange1, class SinglePassRange2> |
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| 62 | joined_range<const SinglePassRange1, const SinglePassRange2> |
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| 63 | join(const SinglePassRange1& r1, const SinglePassRange2& r2) |
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| 64 | { |
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| 65 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> )); |
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| 66 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> )); |
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| 67 | |
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| 68 | return joined_range<const SinglePassRange1, const SinglePassRange2>(r1, r2); |
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| 69 | } |
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| 70 | |
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| 71 | template<class SinglePassRange1, class SinglePassRange2> |
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| 72 | joined_range<SinglePassRange1, SinglePassRange2> |
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| 73 | join(SinglePassRange1& r1, SinglePassRange2& r2) |
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| 74 | { |
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| 75 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> )); |
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| 76 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> )); |
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| 77 | |
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| 78 | return joined_range<SinglePassRange1, SinglePassRange2>(r1, r2); |
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| 79 | } |
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| 80 | |
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| 81 | } // namespace boost |
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| 82 | |
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| 83 | #endif // include guard |
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