1  /* { dg-do compile } */
       2  /* { dg-options "" } */
       3  
       4  typedef struct S TS;
       5  typedef union U TU;
       6  
       7  void
       8  foo (void)
       9  {
      10    (TS) { }; /* { dg-error "invalid use of incomplete typedef" } */
      11    (TU) { }; /* { dg-error "invalid use of incomplete typedef" } */
      12  }