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-rw-r--r--src/leveldb/db/skiplist.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/leveldb/db/skiplist.h b/src/leveldb/db/skiplist.h
index af85be6d01..ed8b092203 100644
--- a/src/leveldb/db/skiplist.h
+++ b/src/leveldb/db/skiplist.h
@@ -1,3 +1,6 @@
+#ifndef STORAGE_LEVELDB_DB_SKIPLIST_H_
+#define STORAGE_LEVELDB_DB_SKIPLIST_H_
+
// 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.
@@ -377,3 +380,5 @@ bool SkipList<Key,Comparator>::Contains(const Key& key) const {
}
} // namespace leveldb
+
+#endif // STORAGE_LEVELDB_DB_SKIPLIST_H_