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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