Phx::Ptr< T > Class Template Reference

A smart-pointer class for intrusive pointers. More...

#include <PhxPtr.h>

List of all members.

Public Member Functions
	Ptr (T *p)
	Ptr (const Ptr< T > &p)
template<class Y>
	Ptr (const Ptr< Y > &p)
const Ptr< T > &	operator= (const Ptr< T > &rhs)
bool	operator< (const Ptr< T > &rhs)
bool	operator== (const Ptr< T > &rhs) const
bool	operator!= (const Ptr< T > &rhs) const
T *	operator-> () const
T &	operator * () const
bool	operator! () const
	operator bool () const
T *	ptr () const
	Accesses the raw pointer from within this smart-pointer.
template<class Y>
Ptr< Y >	dynamicCast (void) const
	Dynamic cast convenience method.
template<class Y>
Ptr< Y >	staticCast (void) const
	Static cast convenience method.

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Detailed Description

template<class T>
class Phx::Ptr< T >

A smart-pointer class for intrusive pointers.

An "intrusive" pointer is one that operates by embedding the reference-count management into the object being pointed to. This is in contrast to the "non-intrusive" method that allocates a separate piece of shared data to manage the count.

As a result of this, not any class can be used as the template parameter T used by this Ptr type. There is a standard interface that the Ptr template requires of the object type.

void T::newReference(void) is called every time a new reference is created; that is, every time a new pointer to the object comes into existance.

void T::deleteReference(void) is called every time a reference is destroyed; that is, every time a pointer to the object goes out of scope and is destructed.

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Member Function Documentation

template<class T> template<class Y> Ptr<Y> Phx::Ptr< T >::dynamicCast (  void   )  const [inline]

Dynamic cast convenience method. Normally, to perform a dynamic cast between smart pointers, we could do the following: Ptr<T> t(new T()); Ptr<Y> y(dynamic_cast<Y*>(t.ptr()); This method simplifies this expression to a single call: Ptr<T> t(new T()); Ptr<Y> y(t.dynamicCast<Y>());

template<class T> Phx::Ptr< T >::operator bool (   )  const [inline]

Todo: Implicit conversion to bool is unsafe. There is a safer approach, but it may be non-portable

template<class T> T* Phx::Ptr< T >::ptr (   )  const [inline]

Accesses the raw pointer from within this smart-pointer. Returns: The raw pointer contained by this Ptr object.

template<class T> template<class Y> Ptr<Y> Phx::Ptr< T >::staticCast (  void   )  const [inline]

Static cast convenience method. Normally, to perform a static cast between smart pointers, we could do the following: Ptr<T> t(new T()); Ptr<Y> y(static_cast<Y*>(t.ptr()); This method simplifies this expression to a single call: Ptr<T> t(new T()); Ptr<Y> y(t.staticCast<Y>());

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The documentation for this class was generated from the following file:

• PhxPtr.h

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