text: #ifndef hoc_membf_h
  #define hoc_membf_h
  
  struct Object;
  
  typedef struct Member_func {
  	const char* name; double (*member)(void*);
  }Member_func;
  
  typedef struct Member_ret_obj_func {
  	const char* name; struct Object** (*member)(void*);
  }Member_ret_obj_func;
  
  typedef struct Member_ret_str_func {
  	const char* name; const char** (*member)(void*);
  }Member_ret_str_func;
  
  #endif
  