1  /* { dg-do compile } */
       2  /* { dg-options "" } */
       3  
       4  /* ISO C99 flexible array members don't have a size.  GCC's zero-length
       5     array extension does.  */
       6  
       7  struct f { int w; int x[0]; } f;
       8  struct g { int w; int x[]; } g;
       9  
      10  char test_gcc[sizeof (f.x) ? -1 : 1];
      11  char test_iso[sizeof (g.x) ? -1 : 1]; /* { dg-error "incomplete type" "iso" } */