50 lines
902 B
C++
50 lines
902 B
C++
//-----------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, SH Software Co. Ltd.
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// = FileName : WPushVar.h
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// = Version : ver2.0
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// = Author : zjq
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// = CreateDate : 2002-09-09
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// = Description: ÀàµÄÉùÃ÷
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// = Maintainers:
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//
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//-----------------------------------------------------------------------------+
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#ifndef _WPUSHVAR_H_
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#define _WPUSHVAR_H_
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//ÁÙʱ¿ØÖƱäÁ¿
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template<class T> class WPushVar
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{
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public:
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virtual ~WPushVar();
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WPushVar(T&variable,const T&newData);
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const T& GetOldData()const;
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protected:
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const T oldData;
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T &var;
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};
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template<class T>
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WPushVar<T>::WPushVar(T&variable,const T&newData)
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: oldData(variable),var(variable)
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{
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var = newData;
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}
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template<class T>
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WPushVar<T>::~WPushVar()
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{
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var = oldData;
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}
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template<class T>
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const T& WPushVar<T>::GetOldData()const
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{
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return oldData;
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}
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#endif
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