1 | // Copyright Neil Groves 2009. Use, modification and |
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2 | // distribution is subject to the Boost Software License, Version |
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3 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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4 | // http://www.boost.org/LICENSE_1_0.txt) |
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5 | // |
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6 | // |
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7 | // For more information, see http://www.boost.org/libs/range/ |
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8 | // |
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9 | #ifndef BOOST_RANGE_ALGORITHM_PARTIAL_SORT_HPP_INCLUDED |
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10 | #define BOOST_RANGE_ALGORITHM_PARTIAL_SORT_HPP_INCLUDED |
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11 | |
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12 | #include <boost/concept_check.hpp> |
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13 | #include <boost/range/begin.hpp> |
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14 | #include <boost/range/end.hpp> |
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15 | #include <boost/range/concepts.hpp> |
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16 | #include <algorithm> |
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17 | |
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18 | namespace boost |
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19 | { |
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20 | namespace range |
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21 | { |
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22 | |
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23 | /// \brief template function partial_sort |
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24 | /// |
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25 | /// range-based version of the partial_sort std algorithm |
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26 | /// |
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27 | /// \pre RandomAccessRange is a model of the RandomAccessRangeConcept |
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28 | /// \pre BinaryPredicate is a model of the BinaryPredicateConcept |
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29 | template<class RandomAccessRange> |
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30 | inline RandomAccessRange& partial_sort(RandomAccessRange& rng, |
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31 | BOOST_DEDUCED_TYPENAME range_iterator<RandomAccessRange>::type middle) |
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32 | { |
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33 | BOOST_RANGE_CONCEPT_ASSERT(( RandomAccessRangeConcept<RandomAccessRange> )); |
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34 | std::partial_sort(boost::begin(rng), middle, boost::end(rng)); |
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35 | return rng; |
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36 | } |
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37 | |
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38 | /// \overload |
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39 | template<class RandomAccessRange> |
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40 | inline const RandomAccessRange& partial_sort(const RandomAccessRange& rng, |
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41 | BOOST_DEDUCED_TYPENAME range_iterator<const RandomAccessRange>::type middle) |
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42 | { |
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43 | BOOST_RANGE_CONCEPT_ASSERT(( RandomAccessRangeConcept<const RandomAccessRange> )); |
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44 | std::partial_sort(boost::begin(rng), middle, boost::end(rng)); |
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45 | return rng; |
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46 | } |
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47 | |
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48 | /// \overload |
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49 | template<class RandomAccessRange, class BinaryPredicate> |
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50 | inline RandomAccessRange& partial_sort(RandomAccessRange& rng, |
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51 | BOOST_DEDUCED_TYPENAME range_iterator<RandomAccessRange>::type middle, |
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52 | BinaryPredicate sort_pred) |
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53 | { |
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54 | BOOST_RANGE_CONCEPT_ASSERT(( RandomAccessRangeConcept<RandomAccessRange> )); |
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55 | std::partial_sort(boost::begin(rng), middle, boost::end(rng), |
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56 | sort_pred); |
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57 | return rng; |
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58 | } |
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59 | |
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60 | /// \overload |
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61 | template<class RandomAccessRange, class BinaryPredicate> |
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62 | inline const RandomAccessRange& partial_sort(const RandomAccessRange& rng, |
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63 | BOOST_DEDUCED_TYPENAME range_iterator<const RandomAccessRange>::type middle, |
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64 | BinaryPredicate sort_pred) |
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65 | { |
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66 | BOOST_RANGE_CONCEPT_ASSERT(( RandomAccessRangeConcept<const RandomAccessRange> )); |
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67 | std::partial_sort(boost::begin(rng), middle, boost::end(rng), |
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68 | sort_pred); |
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69 | return rng; |
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70 | } |
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71 | |
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72 | } // namespace range |
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73 | using range::partial_sort; |
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74 | } // namespace boost |
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75 | |
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76 | #endif // include guard |
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