// 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 |