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From: prj@po.cwru.edu (Paul Jarc)
Subject: Re: hash table handles
Date: Tue, 05 Nov 2002 12:15:51 -0500	[thread overview]
Message-ID: <m3iszc7x9e.fsf@multivac.cwru.edu> (raw)
In-Reply-To: <E188sq8-0007mj-00@giblet> (Thien-Thi Nguyen's message of "Mon, 04 Nov 2002 17:49:12 -0800")

Thien-Thi Nguyen <ttn@giblet.glug.org> wrote:
> using cdr to access the associated data should be fine.

I had no doubt of that.  My doubt is about set-cdr!.

> i see this:
>
>   By convention, a handle in a hash table is the pair which associates a
>   key with a value.

I don't see that in the 1.6.0 manual, so I'll assume it was added
later.  Assuming the following is in fact true, I would also like to
see something to the effect of:
  Changes to the cdr of a handle (e.g., via set-cdr!) will be
  reflected in future lookups for the same key.  Changes to the car of
  a handle (e.g., via set-car!) may cause future lookups to fail.


paul


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  reply	other threads:[~2002-11-05 17:15 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-10-30 17:17 hash table handles Paul Jarc
2002-11-04 23:56 ` Paul Jarc
2002-11-05  1:49   ` Thien-Thi Nguyen
2002-11-05 17:15     ` Paul Jarc [this message]
2002-11-05 18:41       ` Thien-Thi Nguyen

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