explicit_operator bool () const { return more (); }
item_t& operator * () const { return item (); }
item_t* operator -> () const { return hb_addressof (item ()); }
- item_t& operator [] (signed i) const { return item_at ((unsigned) i); }
+ item_t& operator [] (unsigned i) const { return item_at (i); }
iter_t& operator += (unsigned count) { forward (count); return *thiz(); }
iter_t& operator ++ () { next (); return *thiz(); }
iter_t& operator -= (unsigned count) { rewind (count); return *thiz(); }