void main(){twointsclass * data;twointsclass * &data_ref=data;data=NULL;data=new twointsclass;data->a=0;data->b=0;printIntLine(data->a);printIntLine(data->b);{twointsclass * data=data_ref;}}
static void main(){twointsclass * data;twointsclass * &data_ref=data;data=NULL;data=new twointsclass;data->a=0;data->b=0;printIntLine(data->a);printIntLine(data->b);{twointsclass * data=data_ref;delete data;}}