gcc/testsuite/gcc.dg/pr63543.c

   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 "dereferencing pointer to incomplete type .struct S." } */
  11          + s->b
  12          + s->c;
  13 }
  14
  15 int
  16 f2 (union U *u)
  17 {
  18   return u->a /* { dg-error "dereferencing pointer to incomplete type .union U." } */
  19          + u->a
  20          + u->a;
  21 }