71     vector_iterator( const vector_type& vector, size_type index, value_type* item = nullptr )
72         : my_vector(const_cast<vector_type*>(&vector)), my_index(index), my_item(item)  in my_vector()
111         value_type *item = my_item;  variable
112         if (item == nullptr) {
113             item = &my_vector->internal_subscript(my_index);
115             __TBB_ASSERT(item == &my_vector->internal_subscript(my_index), "corrupt cache");
117         return *item;
407     iterator push_back( const value_type& item ) {  in push_back()  argument
408         return internal_emplace_back(item);  in push_back()
411     iterator push_back( value_type&& item ) {  in push_back()  argument
412         return internal_emplace_back(std::move(item));  in push_back()