// Copyright (c) 2011 The LevelDB Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. See the AUTHORS file for names of contributors. #ifndef STORAGE_LEVELDB_UTIL_HISTOGRAM_H_ #define STORAGE_LEVELDB_UTIL_HISTOGRAM_H_ #include <string> namespace leveldb { class Histogram { … }; } // namespace leveldb #endif // STORAGE_LEVELDB_UTIL_HISTOGRAM_H_