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