1  typedef struct foo {} foo_t;
       2  
       3  typedef void (*func_t)(foo_t *s);
       4  
       5  void cb_1 (foo_t *s);
       6  void cb_2 (foo_t *s);
       7  
       8  typedef struct config_s {
       9    func_t func;
      10  } config;
      11  
      12  static const config table[2] = {
      13    { cb_1 },
      14    { cb_2 }
      15  };
      16  
      17  int deflate (foo_t *s, int which)
      18  {
      19    (*(table[which].func))(s);
      20  }