Freeze libcxx for cuda without c++20 support

commit_hash:c2eb32b5cb16638c17c6fc6900738f26ba6eca49

1 files changed, 78 insertions, 0 deletions

diff --git a/contrib/libs/cxxsupp/libcxxcuda11/include/__algorithm/prev_permutation.h b/contrib/libs/cxxsupp/libcxxcuda11/include/__algorithm/prev_permutation.h
new file mode 100644
index 00000000000..187f1e3e5ba
--- /dev/null
+++ b/contrib/libs/cxxsupp/libcxxcuda11/include/__algorithm/prev_permutation.h
@@ -0,0 +1,78 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___ALGORITHM_PREV_PERMUTATION_H
+#define _LIBCPP___ALGORITHM_PREV_PERMUTATION_H
+
+#include <__algorithm/comp.h>
+#include <__algorithm/comp_ref_type.h>
+#include <__algorithm/iterator_operations.h>
+#include <__algorithm/reverse.h>
+#include <__config>
+#include <__iterator/iterator_traits.h>
+#include <__utility/move.h>
+#include <__utility/pair.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#  pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+template <class _AlgPolicy, class _Compare, class _BidirectionalIterator, class _Sentinel>
+_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20
+pair<_BidirectionalIterator, bool>
+__prev_permutation(_BidirectionalIterator __first, _Sentinel __last, _Compare&& __comp)
+{
+    using _Result = pair<_BidirectionalIterator, bool>;
+
+    _BidirectionalIterator __last_iter = _IterOps<_AlgPolicy>::next(__first, __last);
+    _BidirectionalIterator __i = __last_iter;
+    if (__first == __last || __first == --__i)
+        return _Result(std::move(__last_iter), false);
+
+    while (true)
+    {
+        _BidirectionalIterator __ip1 = __i;
+        if (__comp(*__ip1, *--__i))
+        {
+            _BidirectionalIterator __j = __last_iter;
+            while (!__comp(*--__j, *__i))
+                ;
+            _IterOps<_AlgPolicy>::iter_swap(__i, __j);
+            std::__reverse<_AlgPolicy>(__ip1, __last_iter);
+            return _Result(std::move(__last_iter), true);
+        }
+        if (__i == __first)
+        {
+            std::__reverse<_AlgPolicy>(__first, __last_iter);
+            return _Result(std::move(__last_iter), false);
+        }
+    }
+}
+
+template <class _BidirectionalIterator, class _Compare>
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
+bool
+prev_permutation(_BidirectionalIterator __first, _BidirectionalIterator __last, _Compare __comp)
+{
+  return std::__prev_permutation<_ClassicAlgPolicy>(
+      std::move(__first), std::move(__last), static_cast<__comp_ref_type<_Compare> >(__comp)).second;
+}
+
+template <class _BidirectionalIterator>
+inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
+bool
+prev_permutation(_BidirectionalIterator __first, _BidirectionalIterator __last)
+{
+    return _VSTD::prev_permutation(__first, __last, __less<>());
+}
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP___ALGORITHM_PREV_PERMUTATION_H