Fast linked list without list

If you need a very fast way to iterate over a list of objects and call the same method on all of them, then here is a posible solution.
Derive your objects from this class and implement doSomething():

class Element

{

    public:

        Element();

        ~Element();

        virtual void doSomething()=0;

        Element* next;

        static void addElement( Element* el )

        {

            el->next = first;

            first = el;

        }

        static Element* first=nullptr;

};

And to use it:

    // Adding one element to the list:

    Element::addElement( &myObject );

    // Iterating over the objects:

    Element* el = Element::first;

    while( el )

    {

        el->doSomething();

        el = el->next;

    }