autoptr.h

来自「跨操作系统的微型中间件」· C头文件 代码 · 共 67 行

/***************************************************************************
 *   Copyright (C) 2006 by song bo                                         *
 *   [e-mail]                                                       *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifndef _AUTOPTR_H_
#define _AUTOPTR_H_

/**
 * Auto free a point.
 * NO NOT use for array point
 */
template<typename _Tp>
class CAutoPtr
{
public:
	typedef _Tp	element_type;

public:
	CAutoPtr(element_type* __p = NULL) throw(): _M_ptr(__p) { }
	~CAutoPtr() { Free();}
public:
	element_type&	operator*() const throw()  { return *_M_ptr; }
	element_type*	operator->() const throw() { return _M_ptr; }
	void Free() { delete _M_ptr; _M_ptr = NULL;}

protected:
	element_type*	_M_ptr;	
};

/**
 * Auto free a array point
 */
template<typename _Tp>
class CAutoPtrArray
{
public:
	typedef _Tp	element_type;

public:
	CAutoPtrArray(element_type* __p = NULL) throw(): _M_ptr(__p) { }
	~CAutoPtrArray() { Free();}
public:
	element_type&	operator*() const throw()  { return *_M_ptr; }
	element_type*	operator->() const throw() { return _M_ptr; }
	void Free() {delete[] _M_ptr; _M_ptr = NULL;}

protected:
	element_type*	_M_ptr;	
};

#endif// _AUTOPTR_H_