blob: ca4b223914cd7cf787474c1b628b05f6ba723577 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// 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
|
