1  #undef F
       2  #undef N
       3  #undef B
       4  #undef TX
       5  #define F(n, x, v, w) 						\
       6    if (arg.x != s##n.x) FAIL (n, 30);
       7  #define N(n, x)
       8  #define B(n, x, v, w)						\
       9    if (arg.x != s##n.x) FAIL (n, 30);
      10  #define TX(n, type, attrs, fields, ops) 			\
      11  void checkx##n (type S##n arg)					\
      12  {								\
      13    ops								\
      14  }