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From: Stephen Leake <stephen_leake@acm.org>
Newsgroups: comp.lang.ada
Subject: Re: Proposed change to BC iterator parameters
Date: 19 Dec 2003 21:11:58 -0500
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Date: 2003-12-19T21:11:58-05:00

Robert A Duff <bobduff@shell01.TheWorld.com> writes:

> Also, if you use the cursor style for iteration, it can get pretty
> unreadable in complicated cases. For example, try writing in that
> style for walking a tree-structured data structure. The generic
> style can use simple recursion. The cursor style needs to mess
> around with explicit stacks and whatnot.

Hmm. You can wrap that in a package, and provide a simple "next,
is_done" interface. See
http://www.toadmail.com/~ada_wizard/ada/sal_packages/sal-poly-binary_trees-sorted-iterators__ads.htm 

-- 
-- Stephe