Method head

sql/sql_list.h:485–485

  { return base_list::push_back((void *) a, mem_root); }
  inline bool push_front(T *a) { return base_list::push_front((void *) a); }
  inline T* head() {return (T*) base_list::head(); }
  inline T** head_ref() {return (T**) base_list::head_ref(); }
  inline T* pop()  {return (T*) base_list::pop(); }
  inline void concat(List<T> *list) { base_list::concat(list); }