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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_MERGE_HPP_INCLUDED | |
10 | #define BOOST_RANGE_ALGORITHM_MERGE_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 <algorithm> | |
17 | ||
18 | namespace boost | |
19 | { | |
20 | namespace range | |
21 | { | |
22 | ||
23 | /// \brief template function merge | |
24 | /// | |
25 | /// range-based version of the merge std algorithm | |
26 | /// | |
27 | /// \pre SinglePassRange1 is a model of the SinglePassRangeConcept | |
28 | /// \pre SinglePassRange2 is a model of the SinglePassRangeConcept | |
29 | /// \pre BinaryPredicate is a model of the BinaryPredicateConcept | |
30 | /// | |
31 | template<class SinglePassRange1, class SinglePassRange2, | |
32 | class OutputIterator> | |
33 | inline OutputIterator merge(const SinglePassRange1& rng1, | |
34 | const SinglePassRange2& rng2, | |
35 | OutputIterator out) | |
36 | { | |
37 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> )); | |
38 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> )); | |
39 | return std::merge(boost::begin(rng1), boost::end(rng1), | |
40 | boost::begin(rng2), boost::end(rng2), out); | |
41 | } | |
42 | ||
43 | /// \overload | |
44 | template<class SinglePassRange1, class SinglePassRange2, | |
45 | class OutputIterator, class BinaryPredicate> | |
46 | inline OutputIterator merge(const SinglePassRange1& rng1, | |
47 | const SinglePassRange2& rng2, | |
48 | OutputIterator out, | |
49 | BinaryPredicate pred) | |
50 | { | |
51 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange1> )); | |
52 | BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<const SinglePassRange2> )); | |
53 | return std::merge(boost::begin(rng1), boost::end(rng1), | |
54 | boost::begin(rng2), boost::end(rng2), out, pred); | |
55 | } | |
56 | ||
57 | } // namespace range | |
58 | using range::merge; | |
59 | } // namespace boost | |
60 | ||
61 | #endif // include guard |