gcc/testsuite/gcc.dg/pr51034.c

   1 /* PR c/51034 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-std=gnu99" } */
   4
   5 struct S;
   6
   7 int
   8 main ()
   9 {
  10   struct R { typeof (((struct W) {})) x; } r;   /* { dg-error "invalid use of undefined type" } */
  11   struct S { typeof (((struct S) {})) x; } s;   /* { dg-error "invalid use of undefined type" } */
  12   struct T { int x[sizeof ((struct T) {})]; } t;/* { dg-error "invalid use of undefined type" } */
  13   struct U { int x[sizeof((struct V){})];} u;   /* { dg-error "invalid use of undefined type" } */
  14 }