void main(){twointsclass * data;union_type my_union;data=NULL;data=(twointsclass *)calloc(100, sizeof(twointsclass));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;my_union.a=data;{twointsclass * data=my_union.b;delete data;}}