btreeit.h

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C头文件 代码 · 共 71 行

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*                            Open Watcom Project
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#ifndef __BTREEIT_H__
#define __BTREEIT_H__

#include "btreebas.h"

template <class Type> class WCValOrderedVector;

template <class Key_T, class Obj_T> class BTreeNodeBase;

template <class Key_T, class Obj_T>
class SearchEntry {
public:
    bool operator==( const SearchEntry& ) const { return FALSE; }

    BTreeNodeBase<Key_T,Obj_T> *    nextNode();
    Obj_T *                         nextObj();

    BTreeNodeBase<Key_T,Obj_T> *        _node;
    int_16                              _entry;
};

template < class Key_T, class Obj_T >
class BTreeIterator {
public:
                BTreeIterator( BTreeRootedBase< Key_T, Obj_T > * tree );
                ~BTreeIterator();

        Obj_T&  current();
        bool    operator++ ();

private:

    Obj_T *                                             _currObj;
    BTreeRootedBase< Key_T, Obj_T > *                   _tree;
    WCValOrderedVector< SearchEntry<Key_T, Obj_T> > *   _stack;
};

#endif