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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_REMOVE_IF_HPP_INCLUDED | |
10 | #define BOOST_RANGE_ALGORITHM_REMOVE_IF_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 <boost/range/detail/range_return.hpp> | |
17 | #include <algorithm> | |
18 | ||
19 | namespace boost | |
20 | { | |
21 | namespace range | |
22 | { | |
23 | ||
24 | /// \brief template function remove_if | |
25 | /// | |
26 | /// range-based version of the remove_if std algorithm | |
27 | /// | |
28 | /// \pre ForwardRange is a model of the ForwardRangeConcept | |
29 | /// \pre UnaryPredicate is a model of the UnaryPredicateConcept | |
30 | template< class ForwardRange, class UnaryPredicate > | |
31 | inline BOOST_DEDUCED_TYPENAME boost::range_iterator<ForwardRange>::type | |
32 | remove_if(ForwardRange& rng, UnaryPredicate pred) | |
33 | { | |
34 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> )); | |
35 | return std::remove_if(boost::begin(rng), boost::end(rng), pred); | |
36 | } | |
37 | ||
38 | /// \overload | |
39 | template< class ForwardRange, class UnaryPredicate > | |
40 | inline BOOST_DEDUCED_TYPENAME boost::range_iterator<const ForwardRange>::type | |
41 | remove_if(const ForwardRange& rng, UnaryPredicate pred) | |
42 | { | |
43 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> )); | |
44 | return std::remove_if(boost::begin(rng), boost::end(rng), pred); | |
45 | } | |
46 | ||
47 | // range_return overloads | |
48 | ||
49 | /// \overload | |
50 | template< range_return_value re, class ForwardRange, class UnaryPredicate > | |
51 | inline BOOST_DEDUCED_TYPENAME range_return<ForwardRange,re>::type | |
52 | remove_if(ForwardRange& rng, UnaryPredicate pred) | |
53 | { | |
54 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> )); | |
55 | return range_return<ForwardRange,re>::pack( | |
56 | std::remove_if(boost::begin(rng), boost::end(rng), pred), | |
57 | rng); | |
58 | } | |
59 | ||
60 | /// \overload | |
61 | template< range_return_value re, class ForwardRange, class UnaryPredicate > | |
62 | inline BOOST_DEDUCED_TYPENAME range_return<const ForwardRange,re>::type | |
63 | remove_if(const ForwardRange& rng, UnaryPredicate pred) | |
64 | { | |
65 | BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> )); | |
66 | return range_return<const ForwardRange,re>::pack( | |
67 | std::remove_if(boost::begin(rng), boost::end(rng), pred), | |
68 | rng); | |
69 | } | |
70 | ||
71 | } // namespace range | |
72 | using range::remove_if; | |
73 | } // namespace boost | |
74 | ||
75 | #endif // include guard |