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

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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.
*/
/* CAutoPtrXP.h */
#ifndef CAutoPtrXP_H
#define CAutoPtrXP_H
#pragma once
#include "xp_mem.h"
template<class T>
class CAutoPtrXP
{
public:
CAutoPtrXP(T* p = 0) : p_(p) { }
CAutoPtrXP(const CAutoPtrXP& r) : p_(r.release()) { }
~CAutoPtrXP() {
if (p_)
{
XP_FREE(p_);
}
}
CAutoPtrXP& operator = (const CAutoPtrXP& r) {
if ((void *)&r != (void *) this) {
if (p_)
{
XP_FREE(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) {
if (p_)
{
XP_FREE(p_);
}
p_ = p;
}
T* release() const {
T* old = p_;
const_cast<CAutoPtrXP*>(this)->p_ = 0;
return old;
}
private:
T* p_;
};
#endif