1  /* Similar to c99-flex-array-3.c, but a system header so should not
       2     have diagnostics even with -pedantic-errors.  */
       3  
       4  #pragma GCC system_header
       5  
       6  struct flex { int a; int b[]; };
       7  union rf1 { struct flex a; int b; };
       8  union rf2 { int a; struct flex b; };
       9  union rf3 { int a; union rf1 b; };
      10  union rf4 { union rf2 a; int b; };
      11  
      12  struct t0 { struct flex a; };
      13  struct t1 { union rf1 a; };
      14  struct t2 { union rf2 a; };
      15  struct t3 { union rf3 a; };
      16  struct t4 { union rf4 a; };
      17  
      18  void f0 (struct flex[]);
      19  void f1 (union rf1[]);
      20  void f2 (union rf2[]);
      21  void f3 (union rf3[]);
      22  void f4 (union rf4[]);
      23  
      24  struct flex a0[1];
      25  union rf1 a1[1];
      26  union rf2 a2[1];
      27  union rf3 a3[1];
      28  union rf4 a4[1];