67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
/*=========================================================================
|
|
|
|
Program: KWSys - Kitware System Library
|
|
Module: $RCSfile$
|
|
|
|
Copyright (c) Kitware, Inc., Insight Consortium. All rights reserved.
|
|
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
PURPOSE. See the above copyright notices for more information.
|
|
|
|
=========================================================================*/
|
|
#ifndef @KWSYS_NAMESPACE@_auto_ptr_hxx
|
|
#define @KWSYS_NAMESPACE@_auto_ptr_hxx
|
|
|
|
namespace @KWSYS_NAMESPACE@
|
|
{
|
|
|
|
template <class X> class auto_ptr;
|
|
|
|
// The auto_ptr_ref template is supposed to be a private member of
|
|
// auto_ptr but Borland 5.8 cannot handle it. The extra constructor
|
|
// argument prevents implicit conversion to auto_ptr_ref from auto_ptr
|
|
// through the constructor. This avoids problems on Borland compilers
|
|
// when returning auto_ptr by value from a function.
|
|
template <class Y> struct auto_ptr_ref
|
|
{
|
|
auto_ptr<Y>& p_;
|
|
auto_ptr_ref(auto_ptr<Y>& p, int): p_(p) {}
|
|
};
|
|
|
|
// C++98 Standard Section 20.4.5 - Template class auto_ptr.
|
|
template <class X>
|
|
class auto_ptr
|
|
{
|
|
X* x_;
|
|
public:
|
|
typedef X element_type;
|
|
|
|
template <class Y>
|
|
auto_ptr(auto_ptr<Y>& a) throw(): x_(a.release()) {}
|
|
template <class Y>
|
|
auto_ptr& operator=(auto_ptr<Y>& a) throw()
|
|
{ reset(a.release()); return *this; }
|
|
|
|
explicit auto_ptr(X* p=0) throw(): x_(p) {}
|
|
auto_ptr(auto_ptr& a) throw(): x_(a.release()) {}
|
|
auto_ptr& operator=(auto_ptr& a) throw() { reset(a.release()); return *this; }
|
|
~auto_ptr() throw() { delete get(); }
|
|
|
|
X& operator*() const throw() { return *get(); }
|
|
X* operator->() const throw() { return get(); }
|
|
X* get() const throw() { return x_; }
|
|
X* release() throw() { X* x = x_; x_ = 0; return x; }
|
|
void reset(X* p=0) throw() { if(get() != p) { delete get(); x_ = p; } }
|
|
|
|
auto_ptr(auto_ptr_ref<X> r) throw(): x_(r.p_.release()) {}
|
|
template <class Y> operator auto_ptr_ref<Y>() throw() { return auto_ptr_ref<Y>(*this, 1); }
|
|
template <class Y> operator auto_ptr<Y>() throw() { return release(); }
|
|
auto_ptr& operator=(auto_ptr_ref<X> r) throw() { reset(r.p_.release()); return *this; }
|
|
};
|
|
|
|
} // namespace @KWSYS_NAMESPACE@
|
|
|
|
#endif
|