In article <wuju3kovv83.fsf@wistaria.i-have-a-misconfigured-system-so-shoot-me>
Peter Ludemann <ludemann@inxight.com> writes:
> > In article <5k02gh$jhj@lyra.csx.cam.ac.uk> Tony Finch <fanf@lspace.org>
> > writes:
> > Because it will compare equal with any other subtree that happens to
> > have the same structure, which is not what I want.
> But in that case, they are not the *same* subtree; they are different
> in some way that you haven't bothered to specify.
Exactly. They are two different objects with the same value.
Whether or not that is an easy concept to live with seems to depend
on the local culture.
Which is the main point I was trying to make.
--
--Andrew Koenig
ark@research.att.com
http://www.research.att.com/info/ark
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