_Self_destruct_ptr
typedef _Rope_RopeRep<_CharT,_Alloc>* _Self_destruct_ptr;
typedef _Rope_self_destruct_ptr<_CharT,_Alloc> _Self_destruct_ptr;
typedef _Rope_RopeRep<_CharT,_Alloc>* _Self_destruct_ptr;
typedef _Rope_self_destruct_ptr<_CharT,_Alloc> _Self_destruct_ptr;