?? bt.h
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// -*- Mode: C++ -*-// BT.h//// Copyright (c) 1996, Regents of the University of California// $Header: /usr/local/devel/GiST/libGiST/BTree/BT.h,v 1.1.1.1 1996/08/06 23:47:18 jmh Exp $#ifndef BT_H#define BT_H#include "GiST.h"#include "GiSTdb.h"#include "BTentry.h"#include "BTnode.h"#include "BTpredicate.h"class BT : public GiST{public: // optional, for debugging support GiSTobjid IsA() { return BT_CLASS; } BT(dbDatabase& aDb) : db(aDb) {} protected: // Required members GiSTnode *CreateNode() const { return new BTnode; } GiSTstore *CreateStore() const { return new GiSTdb(db); } // set special property int IsOrdered() const { return 1; } dbDatabase& db;};#endif?? 快捷鍵說明
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