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 pdalboost
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>
merge(const SinglePassRange1 & rng1,const SinglePassRange2 & rng2,OutputIterator out)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(pdalboost::begin(rng1), pdalboost::end(rng1),
40 pdalboost::begin(rng2), pdalboost::end(rng2), out);
41 }
42
43 /// \overload
44 template<class SinglePassRange1, class SinglePassRange2,
45 class OutputIterator, class BinaryPredicate>
merge(const SinglePassRange1 & rng1,const SinglePassRange2 & rng2,OutputIterator out,BinaryPredicate pred)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(pdalboost::begin(rng1), pdalboost::end(rng1),
54 pdalboost::begin(rng2), pdalboost::end(rng2), out, pred);
55 }
56
57 } // namespace range
58 using range::merge;
59 } // namespace pdalboost
60
61 #endif // include guard
62