11d83750fSNikolas Klauser //===----------------------------------------------------------------------===// 21d83750fSNikolas Klauser // 31d83750fSNikolas Klauser // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 41d83750fSNikolas Klauser // See https://llvm.org/LICENSE.txt for license information. 51d83750fSNikolas Klauser // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 61d83750fSNikolas Klauser // 71d83750fSNikolas Klauser //===----------------------------------------------------------------------===// 81d83750fSNikolas Klauser 91d83750fSNikolas Klauser #ifndef _LIBCPP___ALGORITHM_RANGES_COPY_BACKWARD_H 101d83750fSNikolas Klauser #define _LIBCPP___ALGORITHM_RANGES_COPY_BACKWARD_H 111d83750fSNikolas Klauser 121d83750fSNikolas Klauser #include <__algorithm/copy_backward.h> 131d83750fSNikolas Klauser #include <__algorithm/in_out_result.h> 1420a11cb5SNikolas Klauser #include <__algorithm/iterator_operations.h> 151d83750fSNikolas Klauser #include <__config> 161d83750fSNikolas Klauser #include <__iterator/concepts.h> 171d83750fSNikolas Klauser #include <__ranges/access.h> 181d83750fSNikolas Klauser #include <__ranges/concepts.h> 191d83750fSNikolas Klauser #include <__ranges/dangling.h> 201d83750fSNikolas Klauser #include <__utility/move.h> 211d83750fSNikolas Klauser 221d83750fSNikolas Klauser #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 231d83750fSNikolas Klauser # pragma GCC system_header 241d83750fSNikolas Klauser #endif 251d83750fSNikolas Klauser 267b462251SLouis Dionne _LIBCPP_PUSH_MACROS 277b462251SLouis Dionne #include <__undef_macros> 287b462251SLouis Dionne 294f15267dSNikolas Klauser #if _LIBCPP_STD_VER >= 20 301d83750fSNikolas Klauser 311d83750fSNikolas Klauser _LIBCPP_BEGIN_NAMESPACE_STD 321d83750fSNikolas Klauser 331d83750fSNikolas Klauser namespace ranges { 341d83750fSNikolas Klauser 351d83750fSNikolas Klauser template <class _Ip, class _Op> 361d83750fSNikolas Klauser using copy_backward_result = in_out_result<_Ip, _Op>; 371d83750fSNikolas Klauser 38*d10dc5a0SChristopher Di Bella struct __copy_backward { 391d83750fSNikolas Klauser template <bidirectional_iterator _InIter1, sentinel_for<_InIter1> _Sent1, bidirectional_iterator _InIter2> 401d83750fSNikolas Klauser requires indirectly_copyable<_InIter1, _InIter2> 415aa03b64SLouis Dionne _LIBCPP_HIDE_FROM_ABI constexpr copy_backward_result<_InIter1, _InIter2> 425aa03b64SLouis Dionne operator()(_InIter1 __first, _Sent1 __last, _InIter2 __result) const { 4320a11cb5SNikolas Klauser auto __ret = std::__copy_backward<_RangeAlgPolicy>(std::move(__first), std::move(__last), std::move(__result)); 441d83750fSNikolas Klauser return {std::move(__ret.first), std::move(__ret.second)}; 451d83750fSNikolas Klauser } 461d83750fSNikolas Klauser 471d83750fSNikolas Klauser template <bidirectional_range _Range, bidirectional_iterator _Iter> 481d83750fSNikolas Klauser requires indirectly_copyable<iterator_t<_Range>, _Iter> 495aa03b64SLouis Dionne _LIBCPP_HIDE_FROM_ABI constexpr copy_backward_result<borrowed_iterator_t<_Range>, _Iter> 505aa03b64SLouis Dionne operator()(_Range&& __r, _Iter __result) const { 5120a11cb5SNikolas Klauser auto __ret = std::__copy_backward<_RangeAlgPolicy>(ranges::begin(__r), ranges::end(__r), std::move(__result)); 521d83750fSNikolas Klauser return {std::move(__ret.first), std::move(__ret.second)}; 531d83750fSNikolas Klauser } 541d83750fSNikolas Klauser }; 551d83750fSNikolas Klauser 561d83750fSNikolas Klauser inline namespace __cpo { 57*d10dc5a0SChristopher Di Bella inline constexpr auto copy_backward = __copy_backward{}; 581d83750fSNikolas Klauser } // namespace __cpo 591d83750fSNikolas Klauser } // namespace ranges 601d83750fSNikolas Klauser 611d83750fSNikolas Klauser _LIBCPP_END_NAMESPACE_STD 621d83750fSNikolas Klauser 634f15267dSNikolas Klauser #endif // _LIBCPP_STD_VER >= 20 641d83750fSNikolas Klauser 657b462251SLouis Dionne _LIBCPP_POP_MACROS 667b462251SLouis Dionne 671d83750fSNikolas Klauser #endif // _LIBCPP___ALGORITHM_RANGES_COPY_BACKWARD_H 68