diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2023-02-11 12:38:04 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2023-02-11 12:38:11 +0000 |
| commit | e3b557809604d036af6e00c60f012c2025b59a5e (patch) | |
| tree | 8a11ba2269a3b669601e2fd41145b174008f4da8 /libcxx/include/__algorithm/reverse.h | |
| parent | 08e8dd7b9db7bb4a9de26d44c1cbfd24e869c014 (diff) | |
Diffstat (limited to 'libcxx/include/__algorithm/reverse.h')
| -rw-r--r-- | libcxx/include/__algorithm/reverse.h | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/libcxx/include/__algorithm/reverse.h b/libcxx/include/__algorithm/reverse.h index 0202cd740833..aa76951707a3 100644 --- a/libcxx/include/__algorithm/reverse.h +++ b/libcxx/include/__algorithm/reverse.h @@ -10,8 +10,10 @@ #define _LIBCPP___ALGORITHM_REVERSE_H #include <__algorithm/iter_swap.h> +#include <__algorithm/iterator_operations.h> #include <__config> #include <__iterator/iterator_traits.h> +#include <__utility/move.h> #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) # pragma GCC system_header @@ -19,36 +21,43 @@ _LIBCPP_BEGIN_NAMESPACE_STD -template <class _BidirectionalIterator> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 +template <class _AlgPolicy, class _BidirectionalIterator> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 void -__reverse(_BidirectionalIterator __first, _BidirectionalIterator __last, bidirectional_iterator_tag) +__reverse_impl(_BidirectionalIterator __first, _BidirectionalIterator __last, bidirectional_iterator_tag) { while (__first != __last) { if (__first == --__last) break; - _VSTD::iter_swap(__first, __last); + _IterOps<_AlgPolicy>::iter_swap(__first, __last); ++__first; } } -template <class _RandomAccessIterator> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 +template <class _AlgPolicy, class _RandomAccessIterator> +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 void -__reverse(_RandomAccessIterator __first, _RandomAccessIterator __last, random_access_iterator_tag) +__reverse_impl(_RandomAccessIterator __first, _RandomAccessIterator __last, random_access_iterator_tag) { if (__first != __last) for (; __first < --__last; ++__first) - _VSTD::iter_swap(__first, __last); + _IterOps<_AlgPolicy>::iter_swap(__first, __last); +} + +template <class _AlgPolicy, class _BidirectionalIterator, class _Sentinel> +_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 +void __reverse(_BidirectionalIterator __first, _Sentinel __last) { + using _IterCategory = typename _IterOps<_AlgPolicy>::template __iterator_category<_BidirectionalIterator>; + std::__reverse_impl<_AlgPolicy>(std::move(__first), std::move(__last), _IterCategory()); } template <class _BidirectionalIterator> -inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 +inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 void reverse(_BidirectionalIterator __first, _BidirectionalIterator __last) { - _VSTD::__reverse(__first, __last, typename iterator_traits<_BidirectionalIterator>::iterator_category()); + std::__reverse<_ClassicAlgPolicy>(std::move(__first), std::move(__last)); } _LIBCPP_END_NAMESPACE_STD |