Smart Ptr

template <class T>
class NiPointer
{
public:
    T   * m_pObject;

    inline NiPointer(T* pObject)
    {
        m_pObject = pObject;
        if (m_pObject)
            m_pObject->IncRef();
    };
    inline ~NiPointer()
    {
        if (m_pObject)
            m_pObject->DecRef();
    };
    inline operator T*() const
    {
        return m_pObject;
    };
    inline T& operator*() const
    {
        return *m_pObject;
    };
    inline T* operator->() const
    {
        return m_pObject;
    };
    inline NiPointer<T>& operator=(const NiPointer& ptr)
    {
        if (m_pObject != ptr.m_pObject)
        {
            if (m_pObject)
                m_pObject->DecRef();

            m_pObject = ptr.m_pObject;

            if (m_pObject)
                m_pObject->IncRef();
        }
        return *this;
    };

    inline NiPointer<T>& operator=(T* pObject)
    {
        if (m_pObject != pObject)
        {
            if (m_pObject)
                m_pObject->DecRef();

            m_pObject = pObject;

            if (m_pObject)
                m_pObject->IncRef();
        }
        return *this;
    };
    inline bool operator==(T* pObject) const
    {
        return (m_pObject == pObject);
    };
    inline bool operator!=(T* pObject) const
    {
        return (m_pObject != pObject);
    };
    inline bool operator==(const NiPointer& ptr) const
    {
        return (m_pObject == ptr.m_pObject);
    };
    inline bool operator!=(const NiPointer& ptr) const
    {
        return (m_pObject != ptr.m_pObject);
    };
};

#define NiSmartPointer(classname) \
    class classname; \
    typedef NiPointer<classname> classname##Ptr

#define NiSmartPointerCast(type, smartptr) ((type*) (void*) (smartptr))