Re: Are iterators and ranges going to co-exist?

[Mafi]

I have to say that I'm not a specialist in STL or C++ in general but as 
far as I know an iterator is class mainly consisting of a pointer to the 
container, the current index and the operator-overloadd-function for ++.

So what can you do with a iterator that you can't do with
  KeyType delegate(KeyType,Container /* which is indexed by KeyType */)