gcc/testsuite/gcc.dg/c11-anon-struct-3.c

   1 /* Test for anonymous structures and unions in C11.  Test for invalid
   2    cases: typedefs disallowed by N1549.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=c11 -pedantic-errors" } */
   5
   6 typedef struct
   7 {
   8   int i;
   9 } s0;
  10
  11 typedef union
  12 {
  13   int i;
  14 } u0;
  15
  16 struct s1
  17 {
  18   int a;
  19   u0; /* { dg-error "declaration does not declare anything" } */
  20   struct
  21   {
  22     int b;
  23   };
  24 };
  25
  26 union u1
  27 {
  28   int b;
  29   s0; /* { dg-error "declaration does not declare anything" } */
  30   union
  31   {
  32     int c;
  33   };
  34 };