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