intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 29 insertions, 0 deletions

diff --git a/contrib/libs/cxxsupp/libcxx/include/__utility/piecewise_construct.h b/contrib/libs/cxxsupp/libcxx/include/__utility/piecewise_construct.h
new file mode 100644
index 00000000000..4dc44b38fe9
--- /dev/null
+++ b/contrib/libs/cxxsupp/libcxx/include/__utility/piecewise_construct.h
@@ -0,0 +1,29 @@
+//===----------------------------------------------------------------------===//
+//
+// 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___UTILITY_PIECEWISE_CONSTRUCT_H
+#define _LIBCPP___UTILITY_PIECEWISE_CONSTRUCT_H
+
+#include <__config>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+struct _LIBCPP_TEMPLATE_VIS piecewise_construct_t { explicit piecewise_construct_t() = default; };
+#if defined(_LIBCPP_CXX03_LANG) || defined(_LIBCPP_BUILDING_LIBRARY)
+extern _LIBCPP_EXPORTED_FROM_ABI const piecewise_construct_t piecewise_construct;// = piecewise_construct_t();
+#else
+/* inline */ constexpr piecewise_construct_t piecewise_construct = piecewise_construct_t();
+#endif
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP___UTILITY_PIECEWISE_CONSTRUCT_H