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34bb3ddc43
Summary: In anticipation of using this to represent sets of CacheEntryRole for including or excluding kinds of blocks in block cache tiers, add significant new features to SmallEnumSet, including at least: * List initialization * Applicative constexpr operations * copy/move/equality ops * begin/end/const_iterator for iteration * Better comments Pull Request resolved: https://github.com/facebook/rocksdb/pull/11178 Test Plan: unit tests added/expanded Reviewed By: ltamasi Differential Revision: D42973723 Pulled By: pdillinger fbshipit-source-id: 40783486feda931c3f7c6fcc9a300acd6a4b0a0a
19 lines
510 B
C++
19 lines
510 B
C++
// Copyright (c) Meta Platforms, Inc. and affiliates.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#include "rocksdb/data_structure.h"
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#include "util/math.h"
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namespace ROCKSDB_NAMESPACE {
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namespace detail {
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int CountTrailingZeroBitsForSmallEnumSet(uint64_t v) {
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return CountTrailingZeroBits(v);
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}
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} // namespace detail
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} // namespace ROCKSDB_NAMESPACE
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