From 46035553bfdd96e63c94e32da0210227ec2e3cf1 Mon Sep 17 00:00:00 2001
From: patrick <patrick@openbsd.org>
Date: Sat, 2 Jan 2021 20:29:13 +0000
Subject: Import libc++ 10.0.1 release.

---
 gnu/llvm/libcxx/src/valarray.cpp | 57 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 gnu/llvm/libcxx/src/valarray.cpp

(limited to 'gnu/llvm/libcxx/src/valarray.cpp')

diff --git a/gnu/llvm/libcxx/src/valarray.cpp b/gnu/llvm/libcxx/src/valarray.cpp
new file mode 100644
index 00000000000..64d26583c74
--- /dev/null
+++ b/gnu/llvm/libcxx/src/valarray.cpp
@@ -0,0 +1,57 @@
+//===------------------------ valarray.cpp --------------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "valarray"
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+// These two symbols are part of the v1 ABI but not part of the >=v2 ABI.
+#if _LIBCPP_ABI_VERSION == 1
+template _LIBCPP_FUNC_VIS valarray<size_t>::valarray(size_t);
+template _LIBCPP_FUNC_VIS valarray<size_t>::~valarray();
+#endif
+
+template void valarray<size_t>::resize(size_t, size_t);
+
+void
+gslice::__init(size_t __start)
+{
+    valarray<size_t> __indices(__size_.size());
+    size_t __k = __size_.size() != 0;
+    for (size_t __i = 0; __i < __size_.size(); ++__i)
+        __k *= __size_[__i];
+    __1d_.resize(__k);
+    if (__1d_.size())
+    {
+        __k = 0;
+        __1d_[__k] = __start;
+        while (true)
+        {
+            size_t __i = __indices.size() - 1;
+            while (true)
+            {
+                if (++__indices[__i] < __size_[__i])
+                {
+                    ++__k;
+                    __1d_[__k] = __1d_[__k-1] + __stride_[__i];
+                    for (size_t __j = __i + 1; __j != __indices.size(); ++__j)
+                        __1d_[__k] -= __stride_[__j] * (__size_[__j] - 1);
+                    break;
+                }
+                else
+                {
+                    if (__i == 0)
+                        return;
+                    __indices[__i--] = 0;
+                }
+            }
+        }
+    }
+}
+
+_LIBCPP_END_NAMESPACE_STD
-- 
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