6. The bag class is defined as follows: 1 template 2. class bag t 3. public: /I TYPEDEFS and MEMBER CONSTANTS typedef Item value type; typedef std::size t size type; static const size type DEFAULT_CAPACITY-30; 18 typedef bag_iterator 2. typename bag ::iterator bagcItem>: :begin() [ return iterator(capacity, used, e, data); 6. template 7. typename bag::iterator bag 4. public: typedef std::size t size type; bag_ iterator(size type capacity, size type used, size type current, Item data) this-capacity capacity; Page 4 of 11 COEN 79 Object-Oriented Programming and Advanced Data Structures this - currentcurrent; this -usedused; this -> datadata; 18 6. The bag class is defined as follows: 1 template 2. class bag t 3. public: /I TYPEDEFS and MEMBER CONSTANTS typedef Item value type; typedef std::size t size type; static const size type DEFAULT_CAPACITY-30; 18 typedef bag_iterator 2. typename bag ::iterator bagcItem>: :begin() [ return iterator(capacity, used, e, data); 6. template 7. typename bag::iterator bag 4. public: typedef std::size t size type; bag_ iterator(size type capacity, size type used, size type current, Item data) this-capacity capacity; Page 4 of 11 COEN 79 Object-Oriented Programming and Advanced Data Structures this - currentcurrent; this -usedused; this -> datadata; 18