From: Hyman Rosen <hyrosen@mail.com>
Subject: Re: True faiths ( was Re: The true faith )
Date: Wed, 23 Jan 2002 16:12:11 -0500
Date: 2002-01-23T16:12:11-05:00 [thread overview]
Message-ID: <3C4F272B.6020209@mail.com> (raw)
In-Reply-To: 3C4DF550.24D3333A@nyc.rr.com
Kenny Tilton wrote:
> Hyman Rosen wrote:
>>You don't get to redefine the problem so that your favorite technique
>>becomes the solution.
>
> GC does not redefine the problem, it eliminates it. Which was the point.
It does no such thing. The original problem specified an object with
two subobjects which were owned by the parent and with a non-empty
base object. You must write assignment for this type so that the
destination acquires its own private copies of the subobjects of the
source, and such that if copying any subcomponent fails (with an
exception) you leave the destination object undamaged.
You do *not* get to hand-wave away the requirement of copying the
subobjects. Say, for example, they represent a pair of buffers. After
the copy is made, the source object and the destination object are
independent - when one writes into its buffers, the other must not
see any change to its own.
next prev parent reply other threads:[~2002-01-23 21:12 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 [this message]
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
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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