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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/llvm14/include/llvm/Support/Base64.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/llvm14/include/llvm/Support/Base64.h')
-rw-r--r--contrib/libs/llvm14/include/llvm/Support/Base64.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/contrib/libs/llvm14/include/llvm/Support/Base64.h b/contrib/libs/llvm14/include/llvm/Support/Base64.h
new file mode 100644
index 0000000000..cf239f8613
--- /dev/null
+++ b/contrib/libs/llvm14/include/llvm/Support/Base64.h
@@ -0,0 +1,68 @@
+#pragma once
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
+
+//===--- Base64.h - Base64 Encoder/Decoder ----------------------*- 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 provides generic base64 encoder/decoder.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_BASE64_H
+#define LLVM_SUPPORT_BASE64_H
+
+#include <cstdint>
+#include <string>
+
+namespace llvm {
+
+template <class InputBytes> std::string encodeBase64(InputBytes const &Bytes) {
+ static const char Table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz"
+ "0123456789+/";
+ std::string Buffer;
+ Buffer.resize(((Bytes.size() + 2) / 3) * 4);
+
+ size_t i = 0, j = 0;
+ for (size_t n = Bytes.size() / 3 * 3; i < n; i += 3, j += 4) {
+ uint32_t x = ((unsigned char)Bytes[i] << 16) |
+ ((unsigned char)Bytes[i + 1] << 8) |
+ (unsigned char)Bytes[i + 2];
+ Buffer[j + 0] = Table[(x >> 18) & 63];
+ Buffer[j + 1] = Table[(x >> 12) & 63];
+ Buffer[j + 2] = Table[(x >> 6) & 63];
+ Buffer[j + 3] = Table[x & 63];
+ }
+ if (i + 1 == Bytes.size()) {
+ uint32_t x = ((unsigned char)Bytes[i] << 16);
+ Buffer[j + 0] = Table[(x >> 18) & 63];
+ Buffer[j + 1] = Table[(x >> 12) & 63];
+ Buffer[j + 2] = '=';
+ Buffer[j + 3] = '=';
+ } else if (i + 2 == Bytes.size()) {
+ uint32_t x =
+ ((unsigned char)Bytes[i] << 16) | ((unsigned char)Bytes[i + 1] << 8);
+ Buffer[j + 0] = Table[(x >> 18) & 63];
+ Buffer[j + 1] = Table[(x >> 12) & 63];
+ Buffer[j + 2] = Table[(x >> 6) & 63];
+ Buffer[j + 3] = '=';
+ }
+ return Buffer;
+}
+
+} // end namespace llvm
+
+#endif
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif