Iterators provide an easy way of cycling through the elements of a
singly linked list, using the post increment operator++
. They
avoid the need to access the inner detail of link objects and list
headers.
An iterator is an instance of the templated class
TSglQueIter<class T>
. The class provides the behaviour for
moving through the elements of a specific list. An iterator maintains a pointer
to the current element in the list. The current element can be any element in
the list.