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// 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;
};
typedef std::map<std::string, std::string, LessOfComparator> KVMap;
}
} // namespace ROCKSDB_NAMESPACE
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