blob: 62be6d18e369ee954dccaa62d7a3e038bb027c62 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
// 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 <map>
#include <string>
#include "rocksdb/comparator.h"
#include "rocksdb/slice.h"
#include "util/coding.h"
namespace ROCKSDB_NAMESPACE {
namespace stl_wrappers {
struct LessOfComparator {
explicit LessOfComparator(const Comparator* c = BytewiseComparator())
: cmp(c) {}
bool operator()(const std::string& a, const std::string& b) const {
return cmp->Compare(Slice(a), Slice(b)) < 0;
}
bool operator()(const Slice& a, const Slice& b) const {
return cmp->Compare(a, b) < 0;
}
const Comparator* cmp;
};
using KVMap = std::map<std::string, std::string, LessOfComparator>;
} // namespace stl_wrappers
} // namespace ROCKSDB_NAMESPACE
|
