void main(){twointsclass * data;union_type my_union;data=NULL;data=(twointsclass *)malloc(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=(twointsclass *)malloc(100*sizeof(twointsclass));my_union.a=data;{twointsclass * data=my_union.b;free(data);}}