struct SComponentListHolder
{
public:
	// a constructor
	SComponentListHolder()
	{
		component_list = FBCreateComponentList();
	}
	~SComponentListHolder()
	{
		FBDestroyComponentList(component_list);
		component_list = nullptr;
	}

	FBComponentList* operator -> () { return component_list; }
	FBComponentList& operator *() { return *component_list; }
	operator FBComponentList*() { return component_list; }
public:
	FBComponentList*	component_list;
};

struct SModelListHolder
{
public:
	// a constructor
	SModelListHolder()
	{
		model_list = FBCreateModelList();
	}
	~SModelListHolder()
	{
		FBDestroyModelList(model_list);
		model_list = nullptr;
	}

	FBModelList* operator -> () { return model_list; }
	FBModelList& operator *() { return *model_list; }
	operator FBModelList*() { return model_list; }
public:
	FBModelList*	model_list;
};