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From: nevin1@ihlpf.ATT.COM (00704a-Liber)
Subject: Re: Garbage Collection
Date: 4 Apr 88 23:14:21 GMT	[thread overview]
Message-ID: <4265@ihlpf.ATT.COM> (raw)
In-Reply-To: 26358@cca.CCA.COM

[followups to comp.lang.misc]

In article <26358@cca.CCA.COM> g-rh@CCA.CCA.COM.UUCP (Richard Harter) writes:
>	There is problably something I am missing, but I don't quite see
>how you can implement garbage collection in C without collateral assumptions
>-- how is the garbage collector supposed to know that that a block is free?

The only way to do this is to allocate a giant heap with malloc()
and do *all* the memory management on your own.  It is no different
than implementing in C or C++ a language that does automatic garbage
collection.


The problem I found with languages that do automatic garbage collection is
that there is no way for me to modify the implementation of the class (or
the type, for those of you unfamiliar with C++ lingo :-)) to make it better
suit my needs.

For applications where the programmer cost is greater than the run-time
cost (such as prototypes, personal tools, one-shot programs), I tend to use
languages with built in memory management.  For other applications, however,
I would rather use a language like C++ which allows me to change the
implementation of a class without affecting the rest of my code.
-- 
 _ __			NEVIN J. LIBER	..!ihnp4!ihlpf!nevin1	(312) 510-6194
' )  )				"The secret compartment of my ring I fill
 /  / _ , __o  ____		 with an Underdog super-energy pill."
/  (_</_\/ <__/ / <_	These are solely MY opinions, not AT&T's, blah blah blah

  parent reply	other threads:[~1988-04-04 23:14 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [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 [this message]
1999-08-18  0:00 garbage collection Ronald Ayoub
1999-08-18  0:00 ` Gisle S�lensminde
1999-08-18  0:00 ` Pascal MALAISE
1999-08-20  0:00   ` David Botton
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 ` 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
  -- strict thread matches above, loose matches on Subject: below --
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,
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
1988-12-13 20:22         ` William Thomas Wolfe,2847,
1988-12-14  6:40           ` Richard A. O'Keefe
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,
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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