mirror of https://github.com/facebook/rocksdb.git
34 lines
922 B
C++
34 lines
922 B
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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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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#pragma once
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#include <map>
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#include <string>
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#include "rocksdb/comparator.h"
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#include "rocksdb/slice.h"
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#include "util/coding.h"
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namespace ROCKSDB_NAMESPACE {
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namespace stl_wrappers {
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struct LessOfComparator {
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explicit LessOfComparator(const Comparator* c = BytewiseComparator())
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: cmp(c) {}
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bool operator()(const std::string& a, const std::string& b) const {
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return cmp->Compare(Slice(a), Slice(b)) < 0;
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}
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bool operator()(const Slice& a, const Slice& b) const {
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return cmp->Compare(a, b) < 0;
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}
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const Comparator* cmp;
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};
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typedef std::map<std::string, std::string, LessOfComparator> KVMap;
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}
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} // namespace ROCKSDB_NAMESPACE
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