From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00
	autolearn=unavailable autolearn_force=no version=3.4.4
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail
From: Bob Duff <bobduff@theworld.com>
Newsgroups: comp.lang.ada
Subject: Re: Two approaches of iterators for the key-value pairs
Date: Sun, 29 Nov 2015 16:17:31 -0500
Organization: A noiseless patient Spider
Message-ID: <874mg4mro4.fsf@theworld.com>
References: <0c524381-442a-49cc-9d72-27a654320153@googlegroups.com>
	<073bed9a-32f2-4045-93ec-064322edf883@googlegroups.com>
	<834c6afa-870e-4921-a1f1-4fe2b061811a@googlegroups.com>
	<f822f37e-a1ab-4c6e-9e5f-0eb5e286e528@googlegroups.com>
	<ly610m33ga.fsf@pushface.org>
	<247bcf0b-af39-4e78-abe9-aa4810042f98@googlegroups.com>
	<lyzixx1ywf.fsf@pushface.org>
Mime-Version: 1.0
Content-Type: text/plain
Injection-Info: mx02.eternal-september.org;
 posting-host="8bcdd77621fc9fc89fead967340f2479";
	logging-data="31370"; mail-complaints-to="abuse@eternal-september.org";
	posting-account="U2FsdGVkX19QRUN7p8tQX2j6iI5yLWDu"
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux)
Cancel-Lock: sha1:tAFjn5vEzBuBhNtnTUKpyq2aCqc=
	sha1:18YY9F/kGd338/XMEuuUyhsyMjk=
Xref: news.eternal-september.org comp.lang.ada:28597
Date: 2015-11-29T16:17:31-05:00
List-Id: <comp.lang.ada>

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