1 files changed, 143 insertions, 0 deletions
diff --git a/contrib/llvm-project/libcxx/include/__pstl/internal/numeric_fwd.h b/contrib/llvm-project/libcxx/include/__pstl/internal/numeric_fwd.h
new file mode 100644
index 000000000000..09f9b11d62da
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+++ b/contrib/llvm-project/libcxx/include/__pstl/internal/numeric_fwd.h
@@ -0,0 +1,143 @@
+// -*- 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 _PSTL_NUMERIC_FWD_H
+#define _PSTL_NUMERIC_FWD_H
+
+#include <__config>
+#include <type_traits>
+#include <utility>
+
+namespace __pstl {
+namespace __internal {
+
+//------------------------------------------------------------------------
+// transform_exclusive_scan
+//
+// walk3 evaluates f(x,y,z) for (x,y,z) drawn from [first1,last1), [first2,...), [first3,...)
+//------------------------------------------------------------------------
+
+template <class _ForwardIterator, class _OutputIterator, class _UnaryOperation, class _Tp, class _BinaryOperation>
+std::pair<_OutputIterator, _Tp> __brick_transform_scan(
+    _ForwardIterator,
+    _ForwardIterator,
+    _OutputIterator,
+    _UnaryOperation,
+    _Tp,
+    _BinaryOperation,
+    /*Inclusive*/ std::false_type) noexcept;
+
+template <class _RandomAccessIterator, class _OutputIterator, class _UnaryOperation, class _Tp, class _BinaryOperation>
+std::pair<_OutputIterator, _Tp> __brick_transform_scan(
+    _RandomAccessIterator,
+    _RandomAccessIterator,
+    _OutputIterator,
+    _UnaryOperation,
+    _Tp,
+    _BinaryOperation,
+    /*Inclusive*/ std::true_type) noexcept;
+
+template <class _Tag,
+          class _ExecutionPolicy,
+          class _ForwardIterator,
+          class _OutputIterator,
+          class _UnaryOperation,
+          class _Tp,
+          class _BinaryOperation,
+          class _Inclusive>
+_OutputIterator __pattern_transform_scan(
+    _Tag,
+    _ExecutionPolicy&&,
+    _ForwardIterator,
+    _ForwardIterator,
+    _OutputIterator,
+    _UnaryOperation,
+    _Tp,
+    _BinaryOperation,
+    _Inclusive) noexcept;
+
+template <class _IsVector,
+          class _ExecutionPolicy,
+          class _RandomAccessIterator,
+          class _OutputIterator,
+          class _UnaryOperation,
+          class _Tp,
+          class _BinaryOperation,
+          class _Inclusive>
+typename std::enable_if<!std::is_floating_point<_Tp>::value, _OutputIterator>::type __pattern_transform_scan(
+    __parallel_tag<_IsVector> __tag,
+    _ExecutionPolicy&&,
+    _RandomAccessIterator,
+    _RandomAccessIterator,
+    _OutputIterator,
+    _UnaryOperation,
+    _Tp,
+    _BinaryOperation,
+    _Inclusive);
+
+template <class _IsVector,
+          class _ExecutionPolicy,
+          class _RandomAccessIterator,
+          class _OutputIterator,
+          class _UnaryOperation,
+          class _Tp,
+          class _BinaryOperation,
+          class _Inclusive>
+typename std::enable_if<std::is_floating_point<_Tp>::value, _OutputIterator>::type __pattern_transform_scan(
+    __parallel_tag<_IsVector>,
+    _ExecutionPolicy&&,
+    _RandomAccessIterator,
+    _RandomAccessIterator,
+    _OutputIterator,
+    _UnaryOperation,
+    _Tp,
+    _BinaryOperation,
+    _Inclusive);
+
+//------------------------------------------------------------------------
+// adjacent_difference
+//------------------------------------------------------------------------
+
+template <class _ForwardIterator, class _OutputIterator, class _BinaryOperation>
+_OutputIterator __brick_adjacent_difference(
+    _ForwardIterator,
+    _ForwardIterator,
+    _OutputIterator,
+    _BinaryOperation,
+    /*is_vector*/ std::false_type) noexcept;
+
+template <class _RandomAccessIterator, class _OutputIterator, class _BinaryOperation>
+_OutputIterator __brick_adjacent_difference(
+    _RandomAccessIterator,
+    _RandomAccessIterator,
+    _OutputIterator,
+    _BinaryOperation,
+    /*is_vector*/ std::true_type) noexcept;
+
+template <class _Tag, class _ExecutionPolicy, class _ForwardIterator, class _OutputIterator, class _BinaryOperation>
+_OutputIterator __pattern_adjacent_difference(
+    _Tag, _ExecutionPolicy&&, _ForwardIterator, _ForwardIterator, _OutputIterator, _BinaryOperation) noexcept;
+
+template <class _IsVector,
+          class _ExecutionPolicy,
+          class _RandomAccessIterator,
+          class _OutputIterator,
+          class _BinaryOperation>
+_OutputIterator __pattern_adjacent_difference(
+    __parallel_tag<_IsVector>,
+    _ExecutionPolicy&&,
+    _RandomAccessIterator,
+    _RandomAccessIterator,
+    _OutputIterator,
+    _BinaryOperation);
+
+} // namespace __internal
+} // namespace __pstl
+
+#endif /* _PSTL_NUMERIC_FWD_H */