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