1*4bdff4beSrobert //===----------------------------------------------------------------------===// 2*4bdff4beSrobert // 3*4bdff4beSrobert // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*4bdff4beSrobert // See https://llvm.org/LICENSE.txt for license information. 5*4bdff4beSrobert // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*4bdff4beSrobert // 7*4bdff4beSrobert //===----------------------------------------------------------------------===// 8*4bdff4beSrobert 9*4bdff4beSrobert #ifndef _LIBCPP___ALGORITHM_RANGES_COPY_BACKWARD_H 10*4bdff4beSrobert #define _LIBCPP___ALGORITHM_RANGES_COPY_BACKWARD_H 11*4bdff4beSrobert 12*4bdff4beSrobert #include <__algorithm/copy_backward.h> 13*4bdff4beSrobert #include <__algorithm/in_out_result.h> 14*4bdff4beSrobert #include <__algorithm/iterator_operations.h> 15*4bdff4beSrobert #include <__config> 16*4bdff4beSrobert #include <__iterator/concepts.h> 17*4bdff4beSrobert #include <__ranges/access.h> 18*4bdff4beSrobert #include <__ranges/concepts.h> 19*4bdff4beSrobert #include <__ranges/dangling.h> 20*4bdff4beSrobert #include <__utility/move.h> 21*4bdff4beSrobert 22*4bdff4beSrobert #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 23*4bdff4beSrobert # pragma GCC system_header 24*4bdff4beSrobert #endif 25*4bdff4beSrobert 26*4bdff4beSrobert #if _LIBCPP_STD_VER > 17 27*4bdff4beSrobert 28*4bdff4beSrobert _LIBCPP_BEGIN_NAMESPACE_STD 29*4bdff4beSrobert 30*4bdff4beSrobert namespace ranges { 31*4bdff4beSrobert 32*4bdff4beSrobert template<class _Ip, class _Op> 33*4bdff4beSrobert using copy_backward_result = in_out_result<_Ip, _Op>; 34*4bdff4beSrobert 35*4bdff4beSrobert namespace __copy_backward { 36*4bdff4beSrobert struct __fn { 37*4bdff4beSrobert 38*4bdff4beSrobert template <bidirectional_iterator _InIter1, sentinel_for<_InIter1> _Sent1, bidirectional_iterator _InIter2> 39*4bdff4beSrobert requires indirectly_copyable<_InIter1, _InIter2> 40*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr operator__fn41*4bdff4beSrobert copy_backward_result<_InIter1, _InIter2> operator()(_InIter1 __first, _Sent1 __last, _InIter2 __result) const { 42*4bdff4beSrobert auto __ret = std::__copy_backward<_RangeAlgPolicy>(std::move(__first), std::move(__last), std::move(__result)); 43*4bdff4beSrobert return {std::move(__ret.first), std::move(__ret.second)}; 44*4bdff4beSrobert } 45*4bdff4beSrobert 46*4bdff4beSrobert template <bidirectional_range _Range, bidirectional_iterator _Iter> 47*4bdff4beSrobert requires indirectly_copyable<iterator_t<_Range>, _Iter> 48*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr operator__fn49*4bdff4beSrobert copy_backward_result<borrowed_iterator_t<_Range>, _Iter> operator()(_Range&& __r, _Iter __result) const { 50*4bdff4beSrobert auto __ret = std::__copy_backward<_RangeAlgPolicy>(ranges::begin(__r), ranges::end(__r), std::move(__result)); 51*4bdff4beSrobert return {std::move(__ret.first), std::move(__ret.second)}; 52*4bdff4beSrobert } 53*4bdff4beSrobert }; 54*4bdff4beSrobert } // namespace __copy_backward 55*4bdff4beSrobert 56*4bdff4beSrobert inline namespace __cpo { 57*4bdff4beSrobert inline constexpr auto copy_backward = __copy_backward::__fn{}; 58*4bdff4beSrobert } // namespace __cpo 59*4bdff4beSrobert } // namespace ranges 60*4bdff4beSrobert 61*4bdff4beSrobert _LIBCPP_END_NAMESPACE_STD 62*4bdff4beSrobert 63*4bdff4beSrobert #endif // _LIBCPP_STD_VER > 17 64*4bdff4beSrobert 65*4bdff4beSrobert #endif // _LIBCPP___ALGORITHM_RANGES_COPY_BACKWARD_H 66