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 |
62 | |