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author | vitalyisaev <vitalyisaev@yandex-team.com> | 2023-06-29 10:00:50 +0300 |
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committer | vitalyisaev <vitalyisaev@yandex-team.com> | 2023-06-29 10:00:50 +0300 |
commit | 6ffe9e53658409f212834330e13564e4952558f6 (patch) | |
tree | 85b1e00183517648b228aafa7c8fb07f5276f419 /contrib/libs/llvm14/include/llvm/Support/Base64.h | |
parent | 726057070f9c5a91fc10fde0d5024913d10f1ab9 (diff) | |
download | ydb-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.h | 68 |
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 |