Sprout/sprout/algorithm/cxx14/copy_backward.hpp
2019-01-07 17:47:17 +09:00

32 lines
1.2 KiB
C++

/*=============================================================================
Copyright (c) 2011-2019 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under 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)
=============================================================================*/
#ifndef SPROUT_ALGORITHM_CXX14_COPY_BACKWARD_HPP
#define SPROUT_ALGORITHM_CXX14_COPY_BACKWARD_HPP
#include <sprout/config.hpp>
#include <sprout/iterator/type_traits/is_iterator_of.hpp>
#include <sprout/type_traits/enabler_if.hpp>
namespace sprout {
//
// 25.3.1 Copy
//
template<
typename BidirectionalIterator1, typename BidirectionalIterator2,
typename sprout::enabler_if<sprout::is_iterator_outputable<BidirectionalIterator2>::value>::type = sprout::enabler
>
inline SPROUT_CXX14_CONSTEXPR BidirectionalIterator2
copy_backward(BidirectionalIterator1 first, BidirectionalIterator1 last, BidirectionalIterator2 result) {
while (first != last) {
*--result = *--last;
}
return result;
}
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_CXX14_COPY_BACKWARD_HPP