void main(){twointsclass * data;twointsclass * &data_ref=data;data=NULL;data=new twointsclass;{twointsclass * data=data_ref;delete [] data;}}
static void main(){twointsclass * data;twointsclass * &data_ref=data;data=NULL;data=new twointsclass;{twointsclass * data=data_ref;delete data;}}