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* [Bug c++/13009] New: Implicitly-defined assignment operator writes to wrong memory
@ 2003-11-11 15:38 oldfishdontdie at hotmail dot com
2003-11-11 15:46 ` [Bug c++/13009] " oldfishdontdie at hotmail dot com
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: oldfishdontdie at hotmail dot com @ 2003-11-11 15:38 UTC (permalink / raw)
To: gcc-bugs
In a class that virtually inherits another class, the implicitly-defined
assignment operator copies the object to the wrong location when called for an
object of a more derived class.
The attached example, when compiled with g++-3.3.1/g++-3.3.2, prints out "cb"
instead of "bc".
--
Summary: Implicitly-defined assignment operator writes to wrong
memory
Product: gcc
Version: 3.3.2
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: oldfishdontdie at hotmail dot com
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13009
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/13009] Implicitly-defined assignment operator writes to wrong memory
2003-11-11 15:38 [Bug c++/13009] New: Implicitly-defined assignment operator writes to wrong memory oldfishdontdie at hotmail dot com
@ 2003-11-11 15:46 ` oldfishdontdie at hotmail dot com
2003-11-11 16:29 ` [Bug c++/13009] [3.3/3.4 regression] " bangerth at dealii dot org
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: oldfishdontdie at hotmail dot com @ 2003-11-11 15:46 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From oldfishdontdie at hotmail dot com 2003-11-11 15:46 -------
Created an attachment (id=5115)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=5115&action=view)
Code for reproducing the bug
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13009
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/13009] [3.3/3.4 regression] Implicitly-defined assignment operator writes to wrong memory
2003-11-11 15:38 [Bug c++/13009] New: Implicitly-defined assignment operator writes to wrong memory oldfishdontdie at hotmail dot com
2003-11-11 15:46 ` [Bug c++/13009] " oldfishdontdie at hotmail dot com
@ 2003-11-11 16:29 ` bangerth at dealii dot org
2003-12-24 21:57 ` gdr at gcc dot gnu dot org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: bangerth at dealii dot org @ 2003-11-11 16:29 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bangerth at dealii dot org 2003-11-11 16:29 -------
Indeed. This is a regression in 3.3.x and mainline with respect to
previous versions.
W.
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |critical
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Keywords| |wrong-code
Last reconfirmed|0000-00-00 00:00:00 |2003-11-11 16:29:08
date| |
Summary|Implicitly-defined |[3.3/3.4 regression]
|assignment operator writes |Implicitly-defined
|to wrong memory |assignment operator writes
| |to wrong memory
Target Milestone|--- |3.3.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13009
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/13009] [3.3/3.4 regression] Implicitly-defined assignment operator writes to wrong memory
2003-11-11 15:38 [Bug c++/13009] New: Implicitly-defined assignment operator writes to wrong memory oldfishdontdie at hotmail dot com
2003-11-11 15:46 ` [Bug c++/13009] " oldfishdontdie at hotmail dot com
2003-11-11 16:29 ` [Bug c++/13009] [3.3/3.4 regression] " bangerth at dealii dot org
@ 2003-12-24 21:57 ` gdr at gcc dot gnu dot org
2003-12-29 2:42 ` cvs-commit at gcc dot gnu dot org
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: gdr at gcc dot gnu dot org @ 2003-12-24 21:57 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From gdr at gcc dot gnu dot org 2003-12-24 21:54 -------
Nathan --
One more ABI issue, I beleive.
-- Gaby
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |nathan at codesourcery dot
| |com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13009
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/13009] [3.3/3.4 regression] Implicitly-defined assignment operator writes to wrong memory
2003-11-11 15:38 [Bug c++/13009] New: Implicitly-defined assignment operator writes to wrong memory oldfishdontdie at hotmail dot com
` (2 preceding siblings ...)
2003-12-24 21:57 ` gdr at gcc dot gnu dot org
@ 2003-12-29 2:42 ` cvs-commit at gcc dot gnu dot org
2003-12-29 2:44 ` [Bug c++/13009] [3.3 " mmitchel at gcc dot gnu dot org
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2003-12-29 2:42 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2003-12-29 01:30 -------
Subject: Bug 13009
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: mmitchel@gcc.gnu.org 2003-12-29 01:30:32
Modified files:
gcc/cp : ChangeLog call.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/g++.dg/init: assign1.C
Log message:
PR c++/13009
* call.c (build_special_member_call): Do not assume that we have a
pointer to the complete object in an assignment operator.
PR c++/13009
* g++.dg/init/assign1.C: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.3836&r2=1.3837
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/call.c.diff?cvsroot=gcc&r1=1.446&r2=1.447
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3313&r2=1.3314
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/init/assign1.C.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13009
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/13009] [3.3 regression] Implicitly-defined assignment operator writes to wrong memory
2003-11-11 15:38 [Bug c++/13009] New: Implicitly-defined assignment operator writes to wrong memory oldfishdontdie at hotmail dot com
` (3 preceding siblings ...)
2003-12-29 2:42 ` cvs-commit at gcc dot gnu dot org
@ 2003-12-29 2:44 ` mmitchel at gcc dot gnu dot org
2004-01-01 0:17 ` gdr at integrable-solutions dot net
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2003-12-29 2:44 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From mmitchel at gcc dot gnu dot org 2003-12-29 01:34 -------
Fixed in GCC 3.4.
--
What |Removed |Added
----------------------------------------------------------------------------
Summary|[3.3/3.4 regression] |[3.3 regression] Implicitly-
|Implicitly-defined |defined assignment operator
|assignment operator writes |writes to wrong memory
|to wrong memory |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13009
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/13009] [3.3 regression] Implicitly-defined assignment operator writes to wrong memory
2003-11-11 15:38 [Bug c++/13009] New: Implicitly-defined assignment operator writes to wrong memory oldfishdontdie at hotmail dot com
` (4 preceding siblings ...)
2003-12-29 2:44 ` [Bug c++/13009] [3.3 " mmitchel at gcc dot gnu dot org
@ 2004-01-01 0:17 ` gdr at integrable-solutions dot net
2004-01-21 3:39 ` dhazeghi at yahoo dot com
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: gdr at integrable-solutions dot net @ 2004-01-01 0:17 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From gdr at integrable-solutions dot net 2004-01-01 00:17 -------
Subject: Re: [3.3 regression] Implicitly-defined assignment operator writes to wrong memory
"mmitchel at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org> writes:
| Fixed in GCC 3.4.
Mark,
As the author of this patch, do you think it is eligible for 3_3-branch?
-- Gaby
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13009
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/13009] [3.3 regression] Implicitly-defined assignment operator writes to wrong memory
2003-11-11 15:38 [Bug c++/13009] New: Implicitly-defined assignment operator writes to wrong memory oldfishdontdie at hotmail dot com
` (5 preceding siblings ...)
2004-01-01 0:17 ` gdr at integrable-solutions dot net
@ 2004-01-21 3:39 ` dhazeghi at yahoo dot com
2004-01-21 5:04 ` cvs-commit at gcc dot gnu dot org
2004-01-21 5:04 ` gdr at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: dhazeghi at yahoo dot com @ 2004-01-21 3:39 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From dhazeghi at yahoo dot com 2004-01-21 03:39 -------
I don't think Mark is on the cc: list for this bug. FWIW the patch does apply cleanly.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |gdr at integrable-solutions
| |dot net
Keywords| |patch
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13009
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/13009] [3.3 regression] Implicitly-defined assignment operator writes to wrong memory
2003-11-11 15:38 [Bug c++/13009] New: Implicitly-defined assignment operator writes to wrong memory oldfishdontdie at hotmail dot com
` (6 preceding siblings ...)
2004-01-21 3:39 ` dhazeghi at yahoo dot com
@ 2004-01-21 5:04 ` cvs-commit at gcc dot gnu dot org
2004-01-21 5:04 ` gdr at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-01-21 5:04 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-01-21 05:04 -------
Subject: Bug 13009
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-3_3-branch
Changes by: gdr@gcc.gnu.org 2004-01-21 05:04:06
Modified files:
gcc/cp : ChangeLog call.c
Added files:
gcc/testsuite/g++.dg/init: assign1.C
Log message:
Backport from mainline
2003-12-28 Mark Mitchell <mark@codesourcery.com>
PR c++/13009
* call.c (build_special_member_call): Do not assume that we
have a
pointer to the complete object in an assignment operator.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.3076.2.238&r2=1.3076.2.239
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/call.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.341.2.34&r2=1.341.2.35
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/init/assign1.C.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.1.14.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13009
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug c++/13009] [3.3 regression] Implicitly-defined assignment operator writes to wrong memory
2003-11-11 15:38 [Bug c++/13009] New: Implicitly-defined assignment operator writes to wrong memory oldfishdontdie at hotmail dot com
` (7 preceding siblings ...)
2004-01-21 5:04 ` cvs-commit at gcc dot gnu dot org
@ 2004-01-21 5:04 ` gdr at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: gdr at gcc dot gnu dot org @ 2004-01-21 5:04 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From gdr at gcc dot gnu dot org 2004-01-21 05:04 -------
Fixed with backport from mainline.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13009
^ permalink raw reply [flat|nested] 10+ messages in thread
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Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
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2003-11-11 15:38 [Bug c++/13009] New: Implicitly-defined assignment operator writes to wrong memory oldfishdontdie at hotmail dot com
2003-11-11 15:46 ` [Bug c++/13009] " oldfishdontdie at hotmail dot com
2003-11-11 16:29 ` [Bug c++/13009] [3.3/3.4 regression] " bangerth at dealii dot org
2003-12-24 21:57 ` gdr at gcc dot gnu dot org
2003-12-29 2:42 ` cvs-commit at gcc dot gnu dot org
2003-12-29 2:44 ` [Bug c++/13009] [3.3 " mmitchel at gcc dot gnu dot org
2004-01-01 0:17 ` gdr at integrable-solutions dot net
2004-01-21 3:39 ` dhazeghi at yahoo dot com
2004-01-21 5:04 ` cvs-commit at gcc dot gnu dot org
2004-01-21 5:04 ` gdr at gcc dot gnu dot org
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