Which of the following conditions will enable this KW::list function to perform its task?

void push_back(const Item_Type& item) {
if(
tail-next = new DNode(item, tail, NULL); // Step 1
tail = tail-next; // Step 2
num_items++;
} else {// List was empty.
push_front(item);
}
}

Question

Which of the following conditions will enable this KW::list function to perform its task?

void push_back(const Item_Type& item) {
    if(
        tail->next = new DNode(item, tail, NULL); // Step 1
        tail = tail->next; // Step 2
        num_items++;
    } else {// List was empty.
    push_front(item);
    }
}

Quizplus · Accepted Answer

The Answer of Which of the following conditions will enable this KW::list function to perform its task?

void push_back(const Item_Type& item) {
    if(
        tail->next = new DNode(item, tail, NULL); // Step 1
        tail = tail->next; // Step 2
        num_items++;
    } else {// List was empty.
    push_front(item);
    }
}

Which of the Following Conditions Will Enable This KW::list Function