comp.lang.ada
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From: Georg Bauhaus <sb463ba@l1-hrz.uni-duisburg.de>
Subject: Re: True faiths ( was Re: The true faith )
Date: Wed, 23 Jan 2002 17:45:17 +0000 (UTC)
Date: 2002-01-23T17:45:17+00:00	[thread overview]
Message-ID: <a2msrd$2eq$1@a1-hrz.uni-duisburg.de> (raw)
In-Reply-To: bruce-28A01B.10594823012002@news.paradise.net.nz

In comp.lang.ada Bruce Hoult <bruce@hoult.org> wrote:

 
: A large proportion [...ownership/deleting]
    ^^^^^
 
: With GC available, objects are seldom copied 
                                 ^^^^^^
 
Yes, but what does frequency of an operation say about the importance
of the availability of the respective copying operation?

When an object has to be backed up (transaction, retransmission,
adventurous options of changing its state with backtracking,
recursively splitting processing to different processors/memories,
saving to files, ...), another pointer to serve the manipulation
is essentially useless, and GC or not GC is simply not the point.

For a concrete language example, why are there expanded objects in
Eiffel? And how does this relate to GC, and multitasking?

(I'm asking myself these questions to get a clear picture,
they are not merly rhetorical.)

Georg



  parent reply	other threads:[~2002-01-23 17:45 UTC|newest]

Thread overview: 106+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <B85AB00A.3603%verec@mac.com>
     [not found] ` <%njZ7.279$iR.150960@news3.calgary.shaw.ca>
     [not found]   ` <B85BD264.370E%verec@mac.com>
     [not found]     ` <n7ybsg9lq8y.fsf@panix1.panix.com>
     [not found]       ` <3c36fbc5_10@news.newsgroups.com>
     [not found]         ` <gat-0501022256350001@192.168.1.50>
     [not found]           ` <4idg3u40ermnp682n6igc5gudp7hajkea9@4ax.com>
     [not found]             ` <gat-1001021155210001@eglaptop.jpl.nasa.gov>
     [not found]               ` <bruce-6C0AC5.10391411012002@news.paradise.net.nz>
     [not found]                 ` <gat-1001021515510001@192.168.1.50>
     [not found]                   ` <76be8851.0201101909.9db0718@posting.google.com>
     [not found]                     ` <gat-1101020950400001@eglaptop.jpl.nasa.gov>
2002-01-11 23:46                       ` True faiths ( was Re: The true faith ) israel r t
2002-01-12  0:38                         ` Steven T Abell
2002-01-13 12:20                           ` Kevin McFarlane
2002-01-13 18:52                             ` Erik Naggum
2002-01-14  8:12                               ` Espen Vestre
2002-01-14 10:40                                 ` israel r t
2002-01-16  6:42                                   ` Patrick Doyle
2002-01-16  8:00                                     ` israel r t
2002-01-16  8:55                                       ` Espen Vestre
2002-01-20  0:55                                         ` Mad Hamish
2002-01-20  1:18                                           ` Bruce Hoult
2002-02-13 16:31                                             ` Tom Hawker
2002-02-13 17:51                                               ` Larry Kilgallen
2002-02-13 23:28                                               ` Peter Gummer
2002-02-14  3:10                                                 ` Greg C
2002-02-14  1:56                                               ` Hartmann Schaffer
2002-02-14  9:59                                               ` Barry Watson
2002-01-16  8:00                                     ` " Do computers because it pays well" ( was Re: True faiths ) israel r t
2002-01-14 11:00                               ` True faiths ( was Re: The true faith ) Immanuel Litzroth
2002-01-18 15:19                                 ` Bob Bane
2002-01-18 17:44                                   ` René
2002-01-18 18:04                                   ` Hyman Rosen
2002-01-18 23:22                                     ` Richard Riehle
2002-01-18 23:53                                       ` Matthew Heaney
2002-01-20  5:39                                       ` Hyman Rosen
2002-01-20  5:59                                         ` Kaz Kylheku
2002-01-20 15:15                                           ` Software Scavenger
2002-01-21  1:42                                         ` Richard Riehle
2002-01-21  9:52                                           ` Hyman Rosen
2002-01-21 16:38                                             ` Richard Riehle
2002-01-21 20:30                                             ` Kaz Kylheku
2002-01-22  5:35                                             ` Raffael Cavallaro
2002-01-18 18:44                                   ` Simon Willcocks
2002-01-22 17:01                                     ` Hyman Rosen
2002-01-22 21:59                                       ` Bruce Hoult
2002-01-22 22:08                                         ` Hyman Rosen
2002-01-22 23:22                                           ` Kenny Tilton
2002-01-23 21:12                                             ` Hyman Rosen
2002-01-23 22:24                                               ` Tim Bradshaw
2002-01-24  0:15                                               ` Kenny Tilton
2002-01-24  8:14                                                 ` Hyman Rosen
2002-01-24 16:50                                                   ` Canconical C++ assignment (was Re: True faiths ...) Ray Blaak
2002-01-23  2:26                                           ` True faiths ( was Re: The true faith ) Bruce Hoult
2002-01-23 17:49                                             ` Richard Riehle
2002-01-22 22:09                                         ` Jim Rogers
2002-01-22 22:54                                           ` Kaz Kylheku
2002-01-22 23:47                                             ` Jim Rogers
2002-01-23  0:08                                               ` Ada SDL Eric Merritt
2002-01-23  1:39                                                 ` Rajat Datta
2002-01-23 10:52                                                 ` Preben Randhol
2002-01-23 13:59                                                   ` Eric Merritt
2002-01-23 16:48                                                     ` Preben Randhol
2002-01-23 16:01                                           ` True faiths ( was Re: The true faith ) Greg C
2002-01-26  0:40                                           ` AG
2002-02-11  7:18                                             ` David Combs
2002-02-11 17:50                                               ` Ray Blaak
2002-02-11 20:13                                               ` Kaz Kylheku
2002-02-13 21:17                                               ` Tom Hawker
2002-01-23 17:45                                         ` Georg Bauhaus [this message]
2002-01-18 19:36                                   ` Bruce Hoult
2002-01-18 19:57                                     ` Kaz Kylheku
2002-01-18 19:58                                     ` Marc Spitzer
2002-01-18 20:11                                       ` Ed Falis
2002-01-18 22:14                                         ` Kenny Tilton
2002-01-19  2:46                                           ` Thomas F. Burdick
2002-01-19  7:32                                     ` av1474
2002-02-13 23:12                                 ` Tom Hawker
2002-01-14 11:42                               ` Kevin McFarlane
2002-01-12  2:31                         ` Victor B. Putz
2002-01-12  3:56                         ` Kenny Tilton
2002-01-12  5:49                           ` israel r t
2002-01-12  6:04                             ` Thaddeus L Olczyk
2002-01-12  8:42                               ` Friedrich Dominicus
2002-01-12 15:44                             ` Andreas Bogk
2002-01-14 13:52                             ` Georg Bauhaus
2002-01-12 19:39                           ` Doug Hockin
2002-01-12 19:49                             ` Thaddeus L Olczyk
2002-01-12 20:14                             ` Kenny Tilton
2002-01-12 22:45                               ` Fernando Rodr�guez
2002-01-13  1:03                               ` Thomas F. Burdick
2002-01-13  5:24                                 ` Kenny Tilton
2002-01-12 15:58                         ` Preben Randhol
2002-01-12 16:18                           ` Nils Goesche
2002-01-12 17:03                             ` Thomas F. Burdick
2002-01-12 17:56                               ` Christopher Browne
2002-01-13  0:52                                 ` Thomas F. Burdick
2002-01-13 18:17                                   ` Nils Goesche
2002-01-13 19:04                                     ` Thomas F. Burdick
2002-01-13 19:26                                       ` James A. Robertson
2002-01-13 20:40                                         ` Nils Goesche
2002-01-13 20:43                                     ` Andreas Bogk
2002-01-13 19:05                             ` Preben Randhol
2002-01-13 19:20                               ` Preben Randhol
2002-01-16 12:00                           ` Christian Lynbech
     [not found]                       ` <9jtu3u8cq92b05j47uat3412tok6hq <3C409A34.7DE61ACB@nyc.rr.com>
2002-01-13 15:23                         ` Patrick Doyle
2002-01-13 16:29                           ` Dr. Edmund Weitz
     [not found]                       ` <9jtu3u8cq92b05j47uat3412tok6hq <i1t28.632$XG4.38637@news2.calgary.shaw.ca>
2002-01-22 14:25                         ` Copying semantics molehill (was Re: True faiths) Patrick Doyle
2002-01-22 15:47                           ` Steven T Abell
2002-01-26 17:32                             ` Patrick Doyle
2002-01-22 18:00                           ` Kaz Kylheku
2002-01-26 17:37                             ` Patrick Doyle
2002-01-28  3:08                           ` Robert Dewar
2002-01-28 18:47                             ` Patrick Doyle
2002-01-23  1:43                       ` True faiths ( was Re: The true faith ) Larry Kilgallen
     [not found]                       ` <9jtu3u8cq92b05j47uOrganization: LJK Software <FfppBdBcNxcL@eisner.encompasserve.org>
2002-01-23  2:04                         ` Jim Rogers
2002-01-23 17:02                           ` Darren New
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