Method argument_count

sql/item_func.h:140–140

  { DBUG_ASSERT(argument_count() > 0); return args; }
  void set_arguments(List<Item> &list);
  inline uint argument_count() const { return arg_count; }
  inline void remove_arguments() { arg_count=0; }
  virtual void print(String *str, enum_query_type query_type);
  void print_op(String *str, enum_query_type query_type);