// Copyright Neil Groves 2009. Use, modification and // distribution is subject to the Boost Software License, Version // 1.0. (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) // // // For more information, see http://www.boost.org/libs/range/ // #ifndef BOOST_RANGE_ALGORITHM_ROTATE_HPP_INCLUDED #define BOOST_RANGE_ALGORITHM_ROTATE_HPP_INCLUDED #include <boost/concept_check.hpp> #include <boost/range/begin.hpp> #include <boost/range/end.hpp> #include <boost/range/concepts.hpp> #include <algorithm> namespace boost { namespace range { /// \brief template function rotate /// /// range-based version of the rotate std algorithm /// /// \pre Rng meets the requirements for a Forward range template<class ForwardRange> inline ForwardRange& rotate(ForwardRange& rng, BOOST_DEDUCED_TYPENAME range_iterator<ForwardRange>::type middle) { BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<ForwardRange> )); std::rotate(boost::begin(rng), middle, boost::end(rng)); return rng; } /// \overload template<class ForwardRange> inline const ForwardRange& rotate(const ForwardRange& rng, BOOST_DEDUCED_TYPENAME range_iterator<const ForwardRange>::type middle) { BOOST_RANGE_CONCEPT_ASSERT(( ForwardRangeConcept<const ForwardRange> )); std::rotate(boost::begin(rng), middle, boost::end(rng)); return rng; } } // namespace range using range::rotate; } // namespace boost #endif // include guard