From: ok@quintus.uucp (Richard A. O'Keefe)
Subject: Re: Garbage Collection
Date: 14 Dec 88 06:40:47 GMT [thread overview]
Message-ID: <864@quintus.UUCP> (raw)
In-Reply-To: 3865@hubcap.UUCP
In article <3865@hubcap.UUCP> billwolf@hubcap.clemson.edu writes:
> Basically, I charge garbage collection with the same crime that
> the GOTO was charged with: its sole function is to facilitate
> UNDISCIPLINED programming. From Tremblay and Sorenson, 1985:
This is completely back-to-front. Doing your own storage management
is like doing your own stack management instead of using procedure calls.
If you want to compare garbage collection with a control structure,
compare it with resursive procedures.
> If this charge can be successfully prosecuted, then garbage
> collection will face the same penalty: the total elimination
> of the facility, in favor of a more disciplined environment.
I think it would be very hard to accuse functional programming languages
like ML of providing an _un_disciplined environment. Yet automatic storage
control is vital to them. A word about the history of ML may make this
clearer. ML was originally the MetaLanguage of Edinburgh LCF, a system
for doing proofs about computations. It is strongly typed, because it
was important that anything the system claimed to be a proof should be a
valid proof. There is a basic set of proof-forming operations which are
known to be valid. The language cannot permit changes to elements of a
data structure, otherwise the arguments to a proof might be changed after
the proof was constructed, rendering it invalid. "deallocate" simply
doesn't make sense in that kind of environment. Storage management is
particularly easy in a language without side effects to data structures.
next prev parent reply other threads:[~1988-12-14 6:40 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
1988-12-03 22:53 Collective response to := messages Erland Sommarskog
1988-12-04 20:41 ` William Thomas Wolfe,2847,
1988-12-05 5:47 ` Richard A. O'Keefe
1988-12-05 12:45 ` William Thomas Wolfe,2847,
1988-12-06 1:54 ` Richard A. O'Keefe
1988-12-06 20:43 ` William Thomas Wolfe,2847,
1988-12-07 15:22 ` Collective response to := messa ron
1988-12-11 19:11 ` Garbage Collection William Thomas Wolfe,2847,
1988-12-12 5:29 ` John Gateley
1988-12-12 18:19 ` William Thomas Wolfe,2847,
1988-12-13 1:02 ` Alexander Klaiber
1988-12-13 18:37 ` William Thomas Wolfe,2847,
1988-12-13 23:36 ` Alexander Klaiber
1988-12-14 3:26 ` William Thomas Wolfe,2847,
1988-12-14 17:16 ` Stephe Leake
1988-12-15 14:43 ` Thomas P. Morris
1988-12-14 23:30 ` John Gateley
1988-12-15 19:25 ` William Thomas Wolfe,2847,
1988-12-19 16:12 ` John Gateley
1988-12-20 19:34 ` Bill Wolfe
1988-12-16 0:49 ` Keys are references, too (was Re: Garbage Collection) Badger BA 64810
1988-12-18 18:42 ` William Thomas Wolfe,2847,
1988-12-13 20:22 ` Garbage Collection William Thomas Wolfe,2847,
1988-12-14 6:40 ` Richard A. O'Keefe [this message]
1988-12-14 17:43 ` William Thomas Wolfe,2847,
1989-01-02 17:51 ` ryer
1989-01-05 8:31 ` William Thomas Wolfe,2847,
1989-01-06 16:58 ` ryer
1989-01-08 19:24 ` William Thomas Wolfe,2847,
-- strict thread matches above, loose matches on Subject: below --
1999-08-18 0:00 garbage collection Ronald Ayoub
1999-08-18 0:00 ` Robert I. Eachus
1999-08-19 0:00 ` Gautier
1999-08-19 0:00 ` Robert I. Eachus
1999-08-20 0:00 ` Keith Thompson
1999-08-20 0:00 ` Robert Dewar
1999-08-18 0:00 ` tmoran
1999-08-18 0:00 ` Keith Thompson
1999-08-19 0:00 ` Tucker Taft
1999-08-19 0:00 ` Robert Dewar
1999-08-19 0:00 ` Robert Dewar
1999-08-20 0:00 ` tmoran
1999-08-20 0:00 ` Keith Thompson
1999-08-20 0:00 ` Matthew Heaney
1999-08-20 0:00 ` Keith Thompson
1999-08-21 0:00 ` Robert Dewar
1999-08-21 0:00 ` Matthew Heaney
1999-08-21 0:00 ` Matthew Heaney
1999-08-21 0:00 ` Robert Dewar
1999-08-21 0:00 ` Brian Rogoff
1999-08-21 0:00 ` Robert Dewar
1999-08-18 0:00 ` Gisle S�lensminde
1999-08-18 0:00 ` Pascal MALAISE
1999-08-20 0:00 ` David Botton
1996-10-24 0:00 Garbage Collection H Brett Bolen
1989-01-10 19:16 Erland Sommarskog
1989-01-11 16:10 ` William Thomas Wolfe,2847,
1989-01-06 22:17 Erland Sommarskog
1989-01-08 18:40 ` William Thomas Wolfe,2847,
1989-01-09 3:56 ` Barry Margolin
1989-01-09 16:22 ` William Thomas Wolfe,2847,
1989-01-09 19:00 ` Barry Margolin
1989-01-10 2:50 ` William Thomas Wolfe,2847,
1989-01-11 9:22 ` Barry Margolin
1989-01-11 16:01 ` William Thomas Wolfe,2847,
1989-01-11 18:21 ` Barry Margolin
1989-01-12 2:43 ` William Thomas Wolfe,2847,
1989-01-15 7:14 ` Barry Margolin
1989-01-05 23:26 Erland Sommarskog
1988-12-31 0:04 Erland Sommarskog
1989-01-05 8:13 ` William Thomas Wolfe,2847,
1988-12-28 19:20 Erland Sommarskog
1988-12-30 0:52 ` Bill Wolfe
1988-12-26 23:37 Erland Sommarskog
1988-12-27 21:24 ` William Thomas Wolfe,2847,
1988-12-28 16:09 ` Snorri Agnarsson
1988-12-30 0:46 ` Bill Wolfe
1988-12-27 22:24 ` Bob Hathaway
1988-12-18 20:12 Erland Sommarskog
1988-12-20 19:04 ` Bill Wolfe
1988-12-13 20:07 Erland Sommarskog
1988-12-15 19:13 ` William Thomas Wolfe,2847,
[not found] <145@krafla.rhi.hi.is>
[not found] ` <272@fang.ATT.COM>
1988-03-29 13:47 ` From Modula to Oberon Denis Fortin
1988-03-30 15:32 ` Lawrence Crowl
1988-03-30 22:41 ` Hans Boehm
1988-03-31 6:27 ` Garbage Collection Richard Harter
1988-03-31 19:49 ` Hans Boehm
1988-04-01 5:43 ` Richard Harter
1988-04-01 18:43 ` Hans Boehm
1988-04-04 23:14 ` 00704a-Liber
1986-03-16 22:24 Garbage collection "Alexander L. Wolf"
[not found] <1979@mit-eddi.UUCP>
[not found] ` <2144@mit-eddie.UUCP>
1984-06-18 19:28 ` Abstraction In Ada Jon Mauney
1984-06-22 7:47 ` Doug Alan
1984-06-25 2:15 ` brad
1984-07-17 10:34 ` garbage collection Eric Smith
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