From e6918187568dbd01842d8d1d2c808ce16a894239 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 13:54:28 +0200 Subject: Adding upstream version 18.2.2. Signed-off-by: Daniel Baumann --- src/rocksdb/util/set_comparator.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 src/rocksdb/util/set_comparator.h (limited to 'src/rocksdb/util/set_comparator.h') diff --git a/src/rocksdb/util/set_comparator.h b/src/rocksdb/util/set_comparator.h new file mode 100644 index 000000000..e0e64436a --- /dev/null +++ b/src/rocksdb/util/set_comparator.h @@ -0,0 +1,24 @@ +// Copyright (c) 2011-present, Facebook, Inc. All rights reserved. +// This source code is licensed under both the GPLv2 (found in the +// COPYING file in the root directory) and Apache 2.0 License +// (found in the LICENSE.Apache file in the root directory). + +#pragma once + +#include "rocksdb/comparator.h" + +namespace ROCKSDB_NAMESPACE { +// A comparator to be used in std::set +struct SetComparator { + explicit SetComparator() : user_comparator_(BytewiseComparator()) {} + explicit SetComparator(const Comparator* user_comparator) + : user_comparator_(user_comparator ? user_comparator + : BytewiseComparator()) {} + bool operator()(const Slice& lhs, const Slice& rhs) const { + return user_comparator_->Compare(lhs, rhs) < 0; + } + + private: + const Comparator* user_comparator_; +}; +} // namespace ROCKSDB_NAMESPACE -- cgit v1.2.3