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  };