template class constructor syntax

Question

I am working on Michael Laszlo's book on computational geometry and have become confused with an unsual kind of template class constructors syntax he has used.

1st code

template<class T> class ListNode :public Node{
public:
    T _val;
    ListNode(T val);
    friend class List<T>;
};

template class<T> ListNode::ListNode(T val)  : // shouldn't this be template <class T> ListNode <T>::ListNode(T val)
   _val(val)
{
}

Question

Shouldn't the syntax be ListNode <T>::ListNode(T val) instead of ListNode ::ListNode(T val) ?

Answer 1

The code you provided will not compile. You're absolutely right that it should be ListNode<T>::ListNode(T val) (although passing by value is debatable). If you check the book's errata, you might be able to find this in there.