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https://github.com/scylladb/scylladb.git
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7215d4bfe9
these unused includes were identifier by clang-include-cleaner. after auditing these source files, all of the reports have been confirmed. please note, because quite a few source files relied on `utils/to_string.hh` to pull in the specialization of `fmt::formatter<std::optional<T>>`, after removing `#include <fmt/std.h>` from `utils/to_string.hh`, we have to include `fmt/std.h` directly. Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
32 lines
714 B
C++
32 lines
714 B
C++
/*
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* Copyright (C) 2018-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
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*
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*/
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#pragma once
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#include <cstdint>
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#include <sys/types.h>
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/*
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* Computes CRC32 (gzip format, RFC 1952) of a compound bitstream M composed by
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* concatenating bitstream A (first) and bitstream B (second), where:
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*
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* - crc is the CRC32 of bitstream A
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* - crc2 is the CRC32 of bitstream B
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* - len2 is length of bitstream B in bytes
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*/
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uint32_t fast_crc32_combine(uint32_t crc, uint32_t crc2, ssize_t len2);
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static constexpr bool fast_crc32_combine_optimized() {
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#if defined(__x86_64__) || defined(__i386__) || defined(__aarch64__)
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return true;
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#else
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return false;
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#endif
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}
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