void main(){twointsclass * data;union_type my_union;data=NULL;data=new twointsclass[100];delete [] data;my_union.a=data;{twointsclass * data=my_union.b;delete [] data;}}
static void main(){twointsclass * data;union_type my_union;data=NULL;data=new twointsclass[100];delete [] data;my_union.a=data;{twointsclass * data=my_union.b;}}