Re: Two approaches of iterators for the key-value pairs

[Bob Duff <bobduff@theworld.com>]

Simon Wright <simon@pushface.org> writes:

> but we are now discovering that we don't just want to use it for
> containers, rather for anything we might want to iterate over, such as
> directory entries, prime numbers, ...

"anything we might want to iterate over" = "container".
At least, that's one way to look at it.  E.g. the set of all prime
numbers is a set, and a set is a container.  A "virtual container"
I suppose, because you're not going to store all the prime numbers
in memory at once.

- Bob