aboutsummaryrefslogtreecommitdiffstats
path: root/contrib/libs/llvm16/include/llvm/Support/AlignOf.h
diff options
context:
space:
mode:
authorvitalyisaev <vitalyisaev@yandex-team.com>2023-06-29 10:00:50 +0300
committervitalyisaev <vitalyisaev@yandex-team.com>2023-06-29 10:00:50 +0300
commit6ffe9e53658409f212834330e13564e4952558f6 (patch)
tree85b1e00183517648b228aafa7c8fb07f5276f419 /contrib/libs/llvm16/include/llvm/Support/AlignOf.h
parent726057070f9c5a91fc10fde0d5024913d10f1ab9 (diff)
downloadydb-6ffe9e53658409f212834330e13564e4952558f6.tar.gz
YQ Connector: support managed ClickHouse
Со стороны dqrun можно обратиться к инстансу коннектора, который работает на streaming стенде, и извлечь данные из облачного CH.
Diffstat (limited to 'contrib/libs/llvm16/include/llvm/Support/AlignOf.h')
-rw-r--r--contrib/libs/llvm16/include/llvm/Support/AlignOf.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/contrib/libs/llvm16/include/llvm/Support/AlignOf.h b/contrib/libs/llvm16/include/llvm/Support/AlignOf.h
new file mode 100644
index 0000000000..1521bcebb3
--- /dev/null
+++ b/contrib/libs/llvm16/include/llvm/Support/AlignOf.h
@@ -0,0 +1,45 @@
+#pragma once
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
+
+//===--- AlignOf.h - Portable calculation of type alignment -----*- 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the AlignedCharArrayUnion class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_ALIGNOF_H
+#define LLVM_SUPPORT_ALIGNOF_H
+
+#include <type_traits>
+
+namespace llvm {
+
+/// A suitably aligned and sized character array member which can hold elements
+/// of any type.
+///
+/// This template is equivalent to std::aligned_union_t<1, ...>, but we cannot
+/// use it due to a bug in the MSVC x86 compiler:
+/// https://github.com/microsoft/STL/issues/1533
+/// Using `alignas` here works around the bug.
+template <typename T, typename... Ts> struct AlignedCharArrayUnion {
+ using AlignedUnion = std::aligned_union_t<1, T, Ts...>;
+ alignas(alignof(AlignedUnion)) char buffer[sizeof(AlignedUnion)];
+};
+
+} // end namespace llvm
+
+#endif // LLVM_SUPPORT_ALIGNOF_H
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif