73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
|
/**
|
||
|
|
* PANDA 3D SOFTWARE
|
||
|
|
* Copyright (c) Carnegie Mellon University. All rights reserved.
|
||
|
|
*
|
||
|
|
* All use of this software is subject to the terms of the revised BSD
|
||
|
|
* license. You should have received a copy of this license along
|
||
|
|
* with this source code in a file named "LICENSE."
|
||
|
|
*
|
||
|
|
* @file pointerToBase.h
|
||
|
|
* @author drose
|
||
|
|
* @date 2004-09-27
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef POINTERTOBASE_H
|
||
|
|
#define POINTERTOBASE_H
|
||
|
|
|
||
|
|
#include "pandabase.h"
|
||
|
|
#include "pointerToVoid.h"
|
||
|
|
#include "referenceCount.h"
|
||
|
|
#include "typedef.h"
|
||
|
|
#include "memoryUsage.h"
|
||
|
|
#include "config_express.h"
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This is the base class for PointerTo and ConstPointerTo. Don't try to use
|
||
|
|
* it directly; use either derived class instead.
|
||
|
|
*/
|
||
|
|
template <class T>
|
||
|
|
class PointerToBase : public PointerToVoid {
|
||
|
|
public:
|
||
|
|
typedef T To;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
ALWAYS_INLINE constexpr PointerToBase() noexcept = default;
|
||
|
|
INLINE PointerToBase(To *ptr);
|
||
|
|
INLINE PointerToBase(const PointerToBase<T> ©);
|
||
|
|
INLINE PointerToBase(PointerToBase<T> &&from) noexcept;
|
||
|
|
template<class Y>
|
||
|
|
INLINE PointerToBase(PointerToBase<Y> &&r) noexcept;
|
||
|
|
|
||
|
|
INLINE ~PointerToBase();
|
||
|
|
|
||
|
|
INLINE void reassign(To *ptr);
|
||
|
|
INLINE void reassign(const PointerToBase<To> ©);
|
||
|
|
INLINE void reassign(PointerToBase<To> &&from) noexcept;
|
||
|
|
template<class Y>
|
||
|
|
INLINE void reassign(PointerToBase<Y> &&from) noexcept;
|
||
|
|
|
||
|
|
INLINE void update_type(To *ptr);
|
||
|
|
|
||
|
|
// No assignment or retrieval functions are declared in PointerToBase,
|
||
|
|
// because we will have to specialize on const vs. non-const later.
|
||
|
|
|
||
|
|
// This is needed to be able to access the privates of other instantiations.
|
||
|
|
template<typename Y> friend class PointerToBase;
|
||
|
|
template<typename Y> friend class WeakPointerToBase;
|
||
|
|
|
||
|
|
PUBLISHED:
|
||
|
|
ALWAYS_INLINE void clear();
|
||
|
|
|
||
|
|
void output(std::ostream &out) const;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<class T>
|
||
|
|
INLINE std::ostream &operator <<(std::ostream &out, const PointerToBase<T> &pointer) {
|
||
|
|
pointer.output(out);
|
||
|
|
return out;
|
||
|
|
}
|
||
|
|
|
||
|
|
#include "pointerToBase.I"
|
||
|
|
|
||
|
|
#endif
|