Library import 16 (#2433)

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1 files changed, 3 insertions, 4 deletions

diff --git a/contrib/libs/cxxsupp/libcxx/include/__algorithm/shift_left.h b/contrib/libs/cxxsupp/libcxx/include/__algorithm/shift_left.h
index 33f06d57e2..023b56dcfc 100644
--- a/contrib/libs/cxxsupp/libcxx/include/__algorithm/shift_left.h
+++ b/contrib/libs/cxxsupp/libcxx/include/__algorithm/shift_left.h
@@ -12,7 +12,6 @@
 #include <__algorithm/move.h>
 #include <__config>
 #include <__iterator/iterator_traits.h>
-#include <type_traits>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
@@ -20,7 +19,7 @@
 
 _LIBCPP_BEGIN_NAMESPACE_STD
 
-#if _LIBCPP_STD_VER > 17
+#if _LIBCPP_STD_VER >= 20
 
 template <class _ForwardIterator>
 inline _LIBCPP_INLINE_VISIBILITY constexpr
@@ -33,7 +32,7 @@ shift_left(_ForwardIterator __first, _ForwardIterator __last,
     }
 
     _ForwardIterator __m = __first;
-    if constexpr (__is_cpp17_random_access_iterator<_ForwardIterator>::value) {
+    if constexpr (__has_random_access_iterator_category<_ForwardIterator>::value) {
         if (__n >= __last - __first) {
             return __first;
         }
@@ -49,7 +48,7 @@ shift_left(_ForwardIterator __first, _ForwardIterator __last,
     return _VSTD::move(__m, __last, __first);
 }
 
-#endif // _LIBCPP_STD_VER > 17
+#endif // _LIBCPP_STD_VER >= 20
 
 _LIBCPP_END_NAMESPACE_STD