friend template classes

Noodles · 2000-08-29T09:48:41+00:00

Im using templates to make a generic linked list i have one class template called ListElement which contains data the data and and the pointer to the next ListElement, and a template class called List which contains an object of type ListElement. I want the data in ListElement to be private, so how do i tell that List is a friend of ListElement?

Well, this works:


template< class T > class foo_list;

template< class T > class foo {
    friend foo_list;
};

template< class T > class foo_list (

};

However what I would do would be to declare ListElement (foo, in the above example) as an inner class of List, ie:


template< class T >
class List
{
    template< class T >
    class ListElement
    {
        friend List;
    };
};

Edited by - Kensai on August 29, 2000 3:36:28 PM

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