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From: Marius Vollmer <mvo@zagadka.ping.de>
Cc: guile-devel@gnu.org
Subject: Re: gen gc
Date: 20 Jul 2002 00:55:00 +0200	[thread overview]
Message-ID: <87k7nrcoqj.fsf@zagadka.ping.de> (raw)
In-Reply-To: <15669.63974.973133.308661@blauw.xs4all.nl>

Han-Wen <hanwen@cs.uu.nl> writes:

> mvo@zagadka.ping.de writes:
>
> > It would be cool if you could fake it.  It doesn't need to be the real
> > memory address of the object, just a unique integer.
> 
> What if I can't?

Then we can remove object-address.  If people need something like it,
we can keep it, but with a different name and the warning that the
address of an object might change over its lifetime.

> Memory cells are going to move around. I don't see a way to generate
> a unique number without making some kind of table for objects
> subjected to object-address.

Yes.  But for a deprecation period, this will be good enough, no?

> Btw, I can imagine that internal hash tables might use the address of
> a cell as a source for a hash index. Does that happen anywhere?

Yes, in scm_ihashq and scm_ihashv and maybe elsewhere.  There are
techniques to deal with this, I believe...

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  parent reply	other threads:[~2002-07-19 22:55 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-07-17 21:59 gen gc Han-Wen
2002-07-17 22:54 ` Marius Vollmer
2002-07-17 23:12   ` Han-Wen
2002-07-18 12:08     ` Miroslav Silovic
2002-07-18 12:08       ` Han-Wen Nienhuys
2002-07-19  3:59         ` Rob Browning
2002-07-19  9:39           ` Han-Wen
2002-07-19 15:40             ` Rob Browning
2002-07-19 19:07               ` Tom Lord
2002-07-19 21:07               ` Han-Wen Nienhuys
2002-07-19 21:32                 ` Rob Browning
2002-07-19 22:33                   ` Han-Wen
2002-07-19 23:31                     ` Rob Browning
2002-07-19 22:58         ` Marius Vollmer
2002-07-18 16:00     ` Dirk Herrmann
2002-07-18 16:21       ` Han-Wen Nienhuys
2002-07-19 22:55     ` Marius Vollmer [this message]
2002-07-20  8:06       ` Neil Jerram

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