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)
7 // For more information, see http://www.boost.org/libs/range/
9 #ifndef BOOST_RANGE_ALGORITHM_UNIQUE_HPP_INCLUDED
10 #define BOOST_RANGE_ALGORITHM_UNIQUE_HPP_INCLUDED
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>
24 /// \brief template function unique
26 /// range-based version of the unique std algorithm
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 )
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 );
40 template< range_return_value re, class ForwardRange >
41 inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange,re>::type
42 unique( const ForwardRange& rng )
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 );
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 )
54 BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
55 return range_return<ForwardRange,re>::
56 pack(std::unique(boost::begin(rng), boost::end(rng), pred),
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 )
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),
71 template< class ForwardRange >
72 inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange, return_begin_found>::type
73 unique( ForwardRange& rng )
75 BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
76 return ::boost::range::unique<return_begin_found>(rng);
79 template< class ForwardRange >
80 inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange, return_begin_found>::type
81 unique( const ForwardRange& rng )
83 BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
84 return ::boost::range::unique<return_begin_found>(rng);
87 template< class ForwardRange, class BinaryPredicate >
88 inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange, return_begin_found>::type
89 unique( ForwardRange& rng, BinaryPredicate pred )
91 BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> ));
92 return ::boost::range::unique<return_begin_found>(rng, pred);
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 )
99 BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> ));
100 return ::boost::range::unique<return_begin_found>(rng, pred);
107 #endif // include guard