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authorAlexSm <alex@ydb.tech>2024-01-18 11:28:56 +0100
committerGitHub <noreply@github.com>2024-01-18 11:28:56 +0100
commit9d0a3761b3201e0d9db879a7adf91876ebdb0564 (patch)
tree541d11ac878c18efd7ebca81e35112aa0fef995b /contrib/libs/cxxsupp/libcxx/include/__algorithm/rotate.h
parent404ef8886ecc9736bc58ade6da2fbd83b486a408 (diff)
downloadydb-9d0a3761b3201e0d9db879a7adf91876ebdb0564.tar.gz
Library import 8 (#1074)
* Library import 8 * Add contrib/libs/cxxsupp/libcxx/include/__verbose_abort
Diffstat (limited to 'contrib/libs/cxxsupp/libcxx/include/__algorithm/rotate.h')
-rw-r--r--contrib/libs/cxxsupp/libcxx/include/__algorithm/rotate.h57
1 files changed, 32 insertions, 25 deletions
diff --git a/contrib/libs/cxxsupp/libcxx/include/__algorithm/rotate.h b/contrib/libs/cxxsupp/libcxx/include/__algorithm/rotate.h
index fcf8444a65..beb5409d5b 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__algorithm/rotate.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__algorithm/rotate.h
@@ -15,10 +15,8 @@
#include <__algorithm/swap_ranges.h>
#include <__config>
#include <__iterator/iterator_traits.h>
-#include <__iterator/next.h>
-#include <__iterator/prev.h>
#include <__utility/move.h>
-#include <__utility/swap.h>
+#include <__utility/pair.h>
#include <type_traits>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
@@ -32,9 +30,11 @@ _LIBCPP_CONSTEXPR_AFTER_CXX11 _ForwardIterator
__rotate_left(_ForwardIterator __first, _ForwardIterator __last)
{
typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
- value_type __tmp = _IterOps<_AlgPolicy>::__iter_move(__first);
- // TODO(ranges): pass `_AlgPolicy` to `move`.
- _ForwardIterator __lm1 = _VSTD::move(_VSTD::next(__first), __last, __first);
+ using _Ops = _IterOps<_AlgPolicy>;
+
+ value_type __tmp = _Ops::__iter_move(__first);
+ _ForwardIterator __lm1 = std::__move<_AlgPolicy>(
+ _Ops::next(__first), __last, __first).second;
*__lm1 = _VSTD::move(__tmp);
return __lm1;
}
@@ -44,11 +44,11 @@ _LIBCPP_CONSTEXPR_AFTER_CXX11 _BidirectionalIterator
__rotate_right(_BidirectionalIterator __first, _BidirectionalIterator __last)
{
typedef typename iterator_traits<_BidirectionalIterator>::value_type value_type;
- // TODO(ranges): pass `_AlgPolicy` to `prev`.
- _BidirectionalIterator __lm1 = _VSTD::prev(__last);
- value_type __tmp = _IterOps<_AlgPolicy>::__iter_move(__lm1);
- // TODO(ranges): pass `_AlgPolicy` to `move_backward`.
- _BidirectionalIterator __fp1 = _VSTD::move_backward(__first, __lm1, __last);
+ using _Ops = _IterOps<_AlgPolicy>;
+
+ _BidirectionalIterator __lm1 = _Ops::prev(__last);
+ value_type __tmp = _Ops::__iter_move(__lm1);
+ _BidirectionalIterator __fp1 = std::__move_backward<_AlgPolicy>(__first, __lm1, std::move(__last));
*__first = _VSTD::move(__tmp);
return __fp1;
}
@@ -108,26 +108,26 @@ __rotate_gcd(_RandomAccessIterator __first, _RandomAccessIterator __middle, _Ran
{
typedef typename iterator_traits<_RandomAccessIterator>::difference_type difference_type;
typedef typename iterator_traits<_RandomAccessIterator>::value_type value_type;
+ using _Ops = _IterOps<_AlgPolicy>;
const difference_type __m1 = __middle - __first;
- const difference_type __m2 = __last - __middle;
+ const difference_type __m2 = _Ops::distance(__middle, __last);
if (__m1 == __m2)
{
- // TODO(ranges): pass `_AlgPolicy` to `swap_ranges`.
- _VSTD::swap_ranges(__first, __middle, __middle);
+ std::__swap_ranges<_AlgPolicy>(__first, __middle, __middle, __last);
return __middle;
}
const difference_type __g = _VSTD::__algo_gcd(__m1, __m2);
for (_RandomAccessIterator __p = __first + __g; __p != __first;)
{
- value_type __t(_IterOps<_AlgPolicy>::__iter_move(--__p));
+ value_type __t(_Ops::__iter_move(--__p));
_RandomAccessIterator __p1 = __p;
_RandomAccessIterator __p2 = __p1 + __m1;
do
{
- *__p1 = _IterOps<_AlgPolicy>::__iter_move(__p2);
+ *__p1 = _Ops::__iter_move(__p2);
__p1 = __p2;
- const difference_type __d = __last - __p2;
+ const difference_type __d = _Ops::distance(__p2, __last);
if (__m1 < __d)
__p2 += __m1;
else
@@ -188,16 +188,23 @@ __rotate_impl(_RandomAccessIterator __first, _RandomAccessIterator __middle, _Ra
return std::__rotate_forward<_AlgPolicy>(__first, __middle, __last);
}
-template <class _AlgPolicy, class _RandomAccessIterator, class _IterCategory>
+template <class _AlgPolicy, class _Iterator, class _Sentinel>
_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_AFTER_CXX11
-_RandomAccessIterator __rotate(_RandomAccessIterator __first, _RandomAccessIterator __middle,
- _RandomAccessIterator __last, _IterCategory __iter_category) {
+pair<_Iterator, _Iterator>
+__rotate(_Iterator __first, _Iterator __middle, _Sentinel __last) {
+ using _Ret = pair<_Iterator, _Iterator>;
+ _Iterator __last_iter = _IterOps<_AlgPolicy>::next(__middle, __last);
+
if (__first == __middle)
- return __last;
+ return _Ret(__last_iter, __last_iter);
if (__middle == __last)
- return __first;
+ return _Ret(std::move(__first), std::move(__last_iter));
+
+ using _IterCategory = typename _IterOps<_AlgPolicy>::template __iterator_category<_Iterator>;
+ auto __result = std::__rotate_impl<_AlgPolicy>(
+ std::move(__first), std::move(__middle), __last_iter, _IterCategory());
- return std::__rotate_impl<_AlgPolicy>(std::move(__first), std::move(__middle), std::move(__last), __iter_category);
+ return _Ret(std::move(__result), std::move(__last_iter));
}
template <class _ForwardIterator>
@@ -205,8 +212,8 @@ inline _LIBCPP_INLINE_VISIBILITY
_LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator
rotate(_ForwardIterator __first, _ForwardIterator __middle, _ForwardIterator __last)
{
- return std::__rotate<_ClassicAlgPolicy>(__first, __middle, __last,
- typename iterator_traits<_ForwardIterator>::iterator_category());
+ return std::__rotate<_ClassicAlgPolicy>(
+ std::move(__first), std::move(__middle), std::move(__last)).first;
}
_LIBCPP_END_NAMESPACE_STD