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68 lines
2.1 KiB
68 lines
2.1 KiB
// Copyright Neil Groves 2009. Use, modification and |
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// distribution is subject to the Boost Software License, Version |
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// |
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// For more information, see http://www.boost.org/libs/range/ |
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// |
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#ifndef BOOST_RANGE_ALGORITHM_RANDOM_SHUFFLE_HPP_INCLUDED |
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#define BOOST_RANGE_ALGORITHM_RANDOM_SHUFFLE_HPP_INCLUDED |
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#include <boost/concept_check.hpp> |
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#include <boost/range/begin.hpp> |
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#include <boost/range/end.hpp> |
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#include <boost/range/concepts.hpp> |
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#include <algorithm> |
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namespace boost |
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{ |
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namespace range |
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{ |
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/// \brief template function random_shuffle |
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/// |
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/// range-based version of the random_shuffle std algorithm |
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/// |
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/// \pre RandomAccessRange is a model of the RandomAccessRangeConcept |
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/// \pre Generator is a model of the UnaryFunctionConcept |
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template<class RandomAccessRange> |
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inline RandomAccessRange& random_shuffle(RandomAccessRange& rng) |
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{ |
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BOOST_RANGE_CONCEPT_ASSERT(( RandomAccessRangeConcept<RandomAccessRange> )); |
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std::random_shuffle(boost::begin(rng), boost::end(rng)); |
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return rng; |
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} |
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/// \overload |
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template<class RandomAccessRange> |
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inline const RandomAccessRange& random_shuffle(const RandomAccessRange& rng) |
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{ |
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BOOST_RANGE_CONCEPT_ASSERT(( RandomAccessRangeConcept<const RandomAccessRange> )); |
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std::random_shuffle(boost::begin(rng), boost::end(rng)); |
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return rng; |
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} |
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/// \overload |
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template<class RandomAccessRange, class Generator> |
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inline RandomAccessRange& random_shuffle(RandomAccessRange& rng, Generator& gen) |
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{ |
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BOOST_RANGE_CONCEPT_ASSERT(( RandomAccessRangeConcept<RandomAccessRange> )); |
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std::random_shuffle(boost::begin(rng), boost::end(rng), gen); |
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return rng; |
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} |
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/// \overload |
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template<class RandomAccessRange, class Generator> |
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inline const RandomAccessRange& random_shuffle(const RandomAccessRange& rng, Generator& gen) |
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{ |
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BOOST_RANGE_CONCEPT_ASSERT(( RandomAccessRangeConcept<const RandomAccessRange> )); |
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std::random_shuffle(boost::begin(rng), boost::end(rng), gen); |
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return rng; |
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} |
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} // namespace range |
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using range::random_shuffle; |
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} // namespace boost |
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#endif // include guard
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