Question

This is a function within my doubly linked list class, but every time I compile, I get this message: “Invalid initialization of non-const reference of type ‘int&’ from a temporary of type ‘int’. I just can’t get how else to do it.

int& LinkedList::operator[](int index)
{
    Node* current = head_;

    for(int i = 0; i < index; i++){
        current = current->getNextNode();
    }

    return(current->getValue()); // getValue() returns an int
} 

Thanks in advance!

Answer 1

Simple answer: getValue has to return an int& as well.