osarrayobjectdeleter.h

来自「跨操作系统的微型中间件」· C头文件 代码 · 共 87 行

/*
 *
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 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
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 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
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 * file.
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 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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/*
    File:       OSArrayObjectDeleter.h

    Contains:   Auto object for deleting arrays.



*/

#ifndef __OS_ARRAY_OBJECT_DELETER_H__
#define __OS_ARRAY_OBJECT_DELETER_H__

#include "MyAssert.h"

template <class T>
class OSArrayObjectDeleter
{
    public:
        OSArrayObjectDeleter(T* victim) : fT(victim)  {}
        ~OSArrayObjectDeleter() { delete [] fT; }
        
        void ClearObject() { fT = NULL; }

        void SetObject(T* victim) 
        {
            Assert(fT == NULL);
            fT = victim; 
        }
        T* GetObject() { return fT; }
        
        operator T*() { return fT; }
    
    private:
    
        T* fT;
};


template <class T>
class OSPtrDeleter
{
    public:
        OSPtrDeleter(T* victim) : fT(victim)  {}
        ~OSPtrDeleter() { delete fT; }
        
        void ClearObject() { fT = NULL; }

        void SetObject(T* victim) 
        {   Assert(fT == NULL);
            fT = victim; 
        }
            
    private:
    
        T* fT;
};


typedef OSArrayObjectDeleter<char*> OSCharPointerArrayDeleter;
typedef OSArrayObjectDeleter<char> OSCharArrayDeleter;

#endif //__OS_OBJECT_ARRAY_DELETER_H__