gcc/testsuite/gcc.dg/struct-in-proto-1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-w" } */
   3 int foo(struct S { int i; } s) {
   4   return sizeof(struct S); /* { dg-bogus "incomplete type" "S visible here" } */
   5 }
   6 int bar(void) {
   7   return sizeof(struct S); /* { dg-error "incomplete type" "not here" } */
   8 }