1 files changed, 52 insertions, 0 deletions

diff --git a/contrib/llvm-project/libcxx/include/__algorithm/in_out_result.h b/contrib/llvm-project/libcxx/include/__algorithm/in_out_result.h
new file mode 100644
index 000000000000..9d971157200f
--- /dev/null
+++ b/contrib/llvm-project/libcxx/include/__algorithm/in_out_result.h
@@ -0,0 +1,52 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+// 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_IN_OUT_RESULT_H
+#define _LIBCPP___ALGORITHM_IN_OUT_RESULT_H
+
+#include <__concepts/convertible_to.h>
+#include <__config>
+#include <__utility/move.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+#if !defined(_LIBCPP_HAS_NO_RANGES)
+namespace ranges {
+
+template<class _InputIterator, class _OutputIterator>
+struct in_out_result {
+  [[no_unique_address]] _InputIterator in;
+  [[no_unique_address]] _OutputIterator out;
+
+  template <class _InputIterator2, class _OutputIterator2>
+    requires convertible_to<const _InputIterator&, _InputIterator2> && convertible_to<const _OutputIterator&,
+                           _OutputIterator2>
+  _LIBCPP_HIDE_FROM_ABI
+  constexpr operator in_out_result<_InputIterator2, _OutputIterator2>() const & {
+    return {in, out};
+  }
+
+  template <class _InputIterator2, class _OutputIterator2>
+    requires convertible_to<_InputIterator, _InputIterator2> && convertible_to<_OutputIterator, _OutputIterator2>
+  _LIBCPP_HIDE_FROM_ABI
+  constexpr operator in_out_result<_InputIterator2, _OutputIterator2>() && {
+    return {_VSTD::move(in), _VSTD::move(out)};
+  }
+};
+
+} // namespace ranges
+#endif // !defined(_LIBCPP_HAS_NO_RANGES)
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP___ALGORITHM_IN_OUT_RESULT_H