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* [Bug c/63642] New: Linked List Pointer points to itself (on Mac OS)
@ 2014-10-25 10:42 romain.wallon at orange dot fr
2014-10-25 10:50 ` [Bug c/63642] " dominiq at lps dot ens.fr
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: romain.wallon at orange dot fr @ 2014-10-25 10:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63642
Bug ID: 63642
Summary: Linked List Pointer points to itself (on Mac OS)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: romain.wallon at orange dot fr
In a linked list, the pointer to the next element seems to always point to
itself : when the list->next is assigned to null, list is also assigned to
null.
It happens on the gcc version on Mac OSX 10.10
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c/63642] Linked List Pointer points to itself (on Mac OS)
2014-10-25 10:42 [Bug c/63642] New: Linked List Pointer points to itself (on Mac OS) romain.wallon at orange dot fr
@ 2014-10-25 10:50 ` dominiq at lps dot ens.fr
2014-10-25 11:52 ` romain.wallon at orange dot fr
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: dominiq at lps dot ens.fr @ 2014-10-25 10:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63642
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2014-10-25
Ever confirmed|0 |1
--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Can you post a reproducer?
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c/63642] Linked List Pointer points to itself (on Mac OS)
2014-10-25 10:42 [Bug c/63642] New: Linked List Pointer points to itself (on Mac OS) romain.wallon at orange dot fr
2014-10-25 10:50 ` [Bug c/63642] " dominiq at lps dot ens.fr
@ 2014-10-25 11:52 ` romain.wallon at orange dot fr
2014-10-25 11:53 ` dominiq at lps dot ens.fr
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: romain.wallon at orange dot fr @ 2014-10-25 11:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63642
--- Comment #2 from Romain <romain.wallon at orange dot fr> ---
Created attachment 33807
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33807&action=edit
A test for the bug about linked list
Here is an example of the problem I have encoutered.
It is unfortunately written in french (comments, name of variables), I am
sorry.
I hope it would be helpfull.
Here is the result I had :
Please, enter a monome (for example x) : x
Address of the first element : 0x0
Your polynom : 0
Note 1 : The linked list is used here to represent polynoms. The program itself
is not yet finished, but it works for monoms.
Note 2 : The program works normally on Ubuntu
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c/63642] Linked List Pointer points to itself (on Mac OS)
2014-10-25 10:42 [Bug c/63642] New: Linked List Pointer points to itself (on Mac OS) romain.wallon at orange dot fr
2014-10-25 10:50 ` [Bug c/63642] " dominiq at lps dot ens.fr
2014-10-25 11:52 ` romain.wallon at orange dot fr
@ 2014-10-25 11:53 ` dominiq at lps dot ens.fr
2014-10-25 12:19 ` romain.wallon at orange dot fr
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: dominiq at lps dot ens.fr @ 2014-10-25 11:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63642
--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
The files for
# include "defpoly.h"
# include "gestpoly.h"
are missing.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c/63642] Linked List Pointer points to itself (on Mac OS)
2014-10-25 10:42 [Bug c/63642] New: Linked List Pointer points to itself (on Mac OS) romain.wallon at orange dot fr
` (2 preceding siblings ...)
2014-10-25 11:53 ` dominiq at lps dot ens.fr
@ 2014-10-25 12:19 ` romain.wallon at orange dot fr
2014-10-25 12:51 ` dominiq at lps dot ens.fr
2014-10-26 2:24 ` redi at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: romain.wallon at orange dot fr @ 2014-10-25 12:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63642
--- Comment #4 from Romain <romain.wallon at orange dot fr> ---
Created attachment 33808
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33808&action=edit
The right version
I am sorry, but the file I've attached in my last message was not the right
version.
Here is the right one.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c/63642] Linked List Pointer points to itself (on Mac OS)
2014-10-25 10:42 [Bug c/63642] New: Linked List Pointer points to itself (on Mac OS) romain.wallon at orange dot fr
` (3 preceding siblings ...)
2014-10-25 12:19 ` romain.wallon at orange dot fr
@ 2014-10-25 12:51 ` dominiq at lps dot ens.fr
2014-10-26 2:24 ` redi at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: dominiq at lps dot ens.fr @ 2014-10-25 12:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63642
--- Comment #5 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Compiling the "right version" with gcc or clang gives the same result at run
time:
Please, enter a monome (for example x) : x
Address of the first element : 0x0
0
So the problem is likely in your code.
Note that lists are widely used in gcc.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c/63642] Linked List Pointer points to itself (on Mac OS)
2014-10-25 10:42 [Bug c/63642] New: Linked List Pointer points to itself (on Mac OS) romain.wallon at orange dot fr
` (4 preceding siblings ...)
2014-10-25 12:51 ` dominiq at lps dot ens.fr
@ 2014-10-26 2:24 ` redi at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: redi at gcc dot gnu.org @ 2014-10-26 2:24 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63642
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |INVALID
Severity|major |normal
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Romain from comment #0)
> It happens on the gcc version on Mac OSX 10.10
That's probably either Clang or Apple's modified GCC 4.2 which is not supported
here
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2014-10-26 1:40 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
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2014-10-25 10:42 [Bug c/63642] New: Linked List Pointer points to itself (on Mac OS) romain.wallon at orange dot fr
2014-10-25 10:50 ` [Bug c/63642] " dominiq at lps dot ens.fr
2014-10-25 11:52 ` romain.wallon at orange dot fr
2014-10-25 11:53 ` dominiq at lps dot ens.fr
2014-10-25 12:19 ` romain.wallon at orange dot fr
2014-10-25 12:51 ` dominiq at lps dot ens.fr
2014-10-26 2:24 ` redi at gcc dot gnu.org
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