1  /* PR c/63543 */
       2  /* { dg-do compile } */
       3  
       4  struct S;
       5  union U;
       6  
       7  int
       8  f1 (struct S *s)
       9  {
      10    return s->a /* { dg-error "invalid use of undefined type .struct S." } */
      11  	 + s->b /* { dg-error "invalid use of undefined type .struct S." } */
      12  	 + s->c; /* { dg-error "invalid use of undefined type .struct S." } */
      13  }
      14  
      15  int
      16  f2 (union U *u)
      17  {
      18    return u->a /* { dg-error "invalid use of undefined type .union U." } */
      19  	 + u->a /* { dg-error "invalid use of undefined type .union U." } */
      20  	 + u->a; /* { dg-error "invalid use of undefined type .union U." } */
      21  }