fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
24 lines
862 B
24 lines
862 B
// 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
|
|
|