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1 | // Copyright Neil Groves 2009. Use, modification and |
2 | // distribution is subject to the Boost Software License, Version | |
3 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
4 | // http://www.boost.org/LICENSE_1_0.txt) | |
5 | // | |
6 | // | |
7 | // For more information, see http://www.boost.org/libs/range/ | |
8 | // | |
9 | #ifndef BOOST_RANGE_ALGORITHM_UNIQUE_HPP_INCLUDED | |
10 | #define BOOST_RANGE_ALGORITHM_UNIQUE_HPP_INCLUDED | |
11 | ||
12 | #include <boost/concept_check.hpp> | |
13 | #include <boost/range/begin.hpp> | |
14 | #include <boost/range/end.hpp> | |
15 | #include <boost/range/concepts.hpp> | |
16 | #include <boost/range/detail/range_return.hpp> | |
17 | #include <algorithm> | |
18 | ||
19 | namespace boost | |
20 | { | |
21 | namespace range | |
22 | { | |
23 | ||
24 | /// \brief template function unique | |
25 | /// | |
26 | /// range-based version of the unique std algorithm | |
27 | /// | |
28 | /// \pre Rng meets the requirements for a Forward range | |
29 | template< range_return_value re, class ForwardRange > | |
30 | inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange,re>::type | |
31 | unique( ForwardRange& rng ) | |
32 | { | |
33 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> )); | |
34 | return range_return<ForwardRange,re>:: | |
35 | pack( std::unique( boost::begin(rng), | |
36 | boost::end(rng)), rng ); | |
37 | } | |
38 | ||
39 | /// \overload | |
40 | template< range_return_value re, class ForwardRange > | |
41 | inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange,re>::type | |
42 | unique( const ForwardRange& rng ) | |
43 | { | |
44 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> )); | |
45 | return range_return<const ForwardRange,re>:: | |
46 | pack( std::unique( boost::begin(rng), | |
47 | boost::end(rng)), rng ); | |
48 | } | |
49 | /// \overload | |
50 | template< range_return_value re, class ForwardRange, class BinaryPredicate > | |
51 | inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange,re>::type | |
52 | unique( ForwardRange& rng, BinaryPredicate pred ) | |
53 | { | |
54 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> )); | |
55 | return range_return<ForwardRange,re>:: | |
56 | pack(std::unique(boost::begin(rng), boost::end(rng), pred), | |
57 | rng); | |
58 | } | |
59 | /// \overload | |
60 | template< range_return_value re, class ForwardRange, class BinaryPredicate > | |
61 | inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange,re>::type | |
62 | unique( const ForwardRange& rng, BinaryPredicate pred ) | |
63 | { | |
64 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> )); | |
65 | return range_return<const ForwardRange,re>:: | |
66 | pack(std::unique(boost::begin(rng), boost::end(rng), pred), | |
67 | rng); | |
68 | } | |
69 | ||
70 | /// \overload | |
71 | template< class ForwardRange > | |
72 | inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange, return_begin_found>::type | |
73 | unique( ForwardRange& rng ) | |
74 | { | |
75 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> )); | |
76 | return ::boost::range::unique<return_begin_found>(rng); | |
77 | } | |
78 | /// \overload | |
79 | template< class ForwardRange > | |
80 | inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange, return_begin_found>::type | |
81 | unique( const ForwardRange& rng ) | |
82 | { | |
83 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> )); | |
84 | return ::boost::range::unique<return_begin_found>(rng); | |
85 | } | |
86 | /// \overload | |
87 | template< class ForwardRange, class BinaryPredicate > | |
88 | inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange, return_begin_found>::type | |
89 | unique( ForwardRange& rng, BinaryPredicate pred ) | |
90 | { | |
91 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> )); | |
92 | return ::boost::range::unique<return_begin_found>(rng, pred); | |
93 | } | |
94 | /// \overload | |
95 | template< class ForwardRange, class BinaryPredicate > | |
96 | inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange, return_begin_found>::type | |
97 | unique( const ForwardRange& rng, BinaryPredicate pred ) | |
98 | { | |
99 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> )); | |
100 | return ::boost::range::unique<return_begin_found>(rng, pred); | |
101 | } | |
102 | ||
103 | } // namespace range | |
104 | using range::unique; | |
105 | } // namespace boost | |
106 | ||
107 | #endif // include guard |