96 lines
1.9 KiB
C
96 lines
1.9 KiB
C
/*
|
|
* CDE - Common Desktop Environment
|
|
*
|
|
* Copyright (c) 1993-2012, The Open Group. All rights reserved.
|
|
*
|
|
* These libraries and programs are free software; you can
|
|
* redistribute them and/or modify them under the terms of the GNU
|
|
* Lesser General Public License as published by the Free Software
|
|
* Foundation; either version 2 of the License, or (at your option)
|
|
* any later version.
|
|
*
|
|
* These libraries and programs are distributed in the hope that
|
|
* they will be useful, but WITHOUT ANY WARRANTY; without even the
|
|
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
* PURPOSE. See the GNU Lesser General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with these librararies and programs; if not, write
|
|
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
|
|
* Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
/* $XConsortium: Ptr.C /main/1 1996/07/29 17:02:08 cde-hp $ */
|
|
// Copyright (c) 1994 James Clark
|
|
// See the file COPYING for copying permission.
|
|
|
|
#ifndef Ptr_DEF_INCLUDED
|
|
#define Ptr_DEF_INCLUDED 1
|
|
|
|
#ifdef SP_NAMESPACE
|
|
namespace SP_NAMESPACE {
|
|
#endif
|
|
|
|
template<class T>
|
|
Ptr<T>::Ptr(T *ptr) : ptr_(ptr)
|
|
{
|
|
if (ptr_)
|
|
ptr_->ref();
|
|
}
|
|
|
|
template<class T>
|
|
Ptr<T>::~Ptr()
|
|
{
|
|
if (ptr_) {
|
|
if (ptr_->unref())
|
|
delete ptr_;
|
|
ptr_ = 0;
|
|
}
|
|
}
|
|
|
|
template<class T>
|
|
Ptr<T>::Ptr(const Ptr<T> &p)
|
|
: ptr_(p.ptr_)
|
|
{
|
|
if (p.ptr_)
|
|
p.ptr_->ref();
|
|
}
|
|
|
|
template<class T>
|
|
Ptr<T> &Ptr<T>::operator=(const Ptr<T> &p)
|
|
{
|
|
if (p.ptr_)
|
|
p.ptr_->ref();
|
|
if (ptr_ && ptr_->unref())
|
|
delete ptr_;
|
|
ptr_ = p.ptr_;
|
|
return *this;
|
|
}
|
|
|
|
template<class T>
|
|
Ptr<T> &Ptr<T>::operator=(T *p)
|
|
{
|
|
if (p)
|
|
p->ref();
|
|
if (ptr_ && ptr_->unref())
|
|
delete ptr_;
|
|
ptr_ = p;
|
|
return *this;
|
|
}
|
|
|
|
template<class T>
|
|
void Ptr<T>::clear()
|
|
{
|
|
if (ptr_) {
|
|
if (ptr_->unref())
|
|
delete ptr_;
|
|
ptr_ = 0;
|
|
}
|
|
}
|
|
|
|
#ifdef SP_NAMESPACE
|
|
}
|
|
#endif
|
|
|
|
#endif /* not Ptr_DEF_INCLUDED */
|