42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
// 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;
|
|
}
|
|
|
|
} // namespace range
|
|
using range::rotate;
|
|
} // namespace boost
|
|
|
|
#endif // include guard
|