gecko-dev/cmd/macfe/utility/CAutoPtr.h

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1.4 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/* CAutoPtr.h */
#ifndef CAutoPtr_H
#define CAutoPtr_H
#pragma once
template<class T>
class CAutoPtr
{
public:
CAutoPtr(T* p = 0) : p_(p) { }
CAutoPtr(const CAutoPtr& r) : p_(r.release()) { }
~CAutoPtr() { delete p_; }
CAutoPtr& operator = (const CAutoPtr& r) {
if ((void *)&r != (void *) this) {
delete p_;
p_ = r.release();
}
return *this;
}
T& operator*(void) const{ return *p_; }
T* operator->(void) const { return p_; }
T* get(void) const { return p_; }
void reset(T* p = 0) {
delete p_;
p_ = p;
}
T* release(void) const {
T* old = p_;
const_cast<CAutoPtr*>(this)->p_ = 0;
return old;
}
private:
T* p_;
};
#endif