Ashkan Aliabadi <ashkan.aliabadi <at>
gmail.com> writes:
>
> Dear all,I've decided to write an ABC named BasicIterator, from which all
derived iterators are to be descended. The reason being that I have to refer to
iterators inside an interface and I need a general base type as a place holder
to which I can refer. Besides, I don't want to use CRTP in the interface, but I
don't care if I'm forced to use it inside BasicIterator.As discussed in the
interoperability section of iterator_facade (here), the euqal() function must be
templatized. The problem is that I have to make equal() a pure virtual member
function in order to force derived types override it, but templated virtual
functions on the other hand, are not valid.So I was wondering what the best
approach is. How can I achieve both of these goals? Please advise.Any
ideas/suggestions are welcome.Thanks in advance