Pointer to class parent.

class CObj{public: 	CObj() {refCount = 1; parent = 0;}	~CObj() {}	CObj &operator=(CObj &other) 	{		parent = other.parent; 		return *this; 	};	void AddRef() {refCount++;}	void Release() {if( --refCount == 0 ) delete this;}	int refCount;	CObj *parent;};	r = engine->RegisterObjectType("obj", sizeof(CObj), asOBJ_CLASS_CDA); assert( r>=0 );	r = engine->RegisterObjectBehaviour("obj", asBEHAVE_CONSTRUCT, "void f()", asFUNCTION(CObj_Construct), asCALL_CDECL_OBJLAST); assert( r>=0 );	r = engine->RegisterObjectBehaviour("obj", asBEHAVE_ADDREF, "void f()", asMETHOD(CObj,AddRef), asCALL_THISCALL); assert( r>=0 );	r = engine->RegisterObjectBehaviour("obj", asBEHAVE_RELEASE, "void f()", asMETHOD(CObj,Release), asCALL_THISCALL); assert( r>=0 );	r = engine->RegisterObjectBehaviour("obj", asBEHAVE_ASSIGNMENT, "obj &f(const obj ∈)", asMETHOD(CObj,operator=), asCALL_THISCALL); assert( r>=0 );	r = engine->RegisterObjectProperty("obj", "obj@ parent", offsetof(CObj,parent)); assert( r>=0 );