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* [Bug c++/49440] New: Invalid dynamic_cast for unnamed namespace
@ 2011-06-16 13:19 hordi at ukr dot net
2011-06-16 13:22 ` [Bug c++/49440] " hordi at ukr dot net
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: hordi at ukr dot net @ 2011-06-16 13:19 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49440
Summary: Invalid dynamic_cast for unnamed namespace
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: hordi@ukr.net
We have a base class, from this base class we are creating two classes in
unnamed namespace (each class in different *.cpp-file). After that we are
creating one from it and trying to dynamic_cast to other - in result this
operation is processed but should not. This code works properly for gcc-4.4.5
for example...
small description:
file: a.h
class Module{...}
Module *gp = 0;
file a.cpp
namespace
{
class ItemModule : public Module{}
}
some code:
gp = new ItemModule();
file main.cpp
namespace
{
class ItemModule : public Module{}
}
int main()
{
ItemModule *p = dynamic_cast<ItemModule*>(gp);
//I expect to see NULL, but have real address
printf("%p\n",p);
}
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/49440] Invalid dynamic_cast for unnamed namespace
2011-06-16 13:19 [Bug c++/49440] New: Invalid dynamic_cast for unnamed namespace hordi at ukr dot net
@ 2011-06-16 13:22 ` hordi at ukr dot net
2011-06-16 13:24 ` hordi at ukr dot net
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: hordi at ukr dot net @ 2011-06-16 13:22 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49440
--- Comment #1 from Iurii Gordiienko <hordi at ukr dot net> 2011-06-16 13:22:31 UTC ---
4.5.1, 4.5.2 - same result
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/49440] Invalid dynamic_cast for unnamed namespace
2011-06-16 13:19 [Bug c++/49440] New: Invalid dynamic_cast for unnamed namespace hordi at ukr dot net
2011-06-16 13:22 ` [Bug c++/49440] " hordi at ukr dot net
@ 2011-06-16 13:24 ` hordi at ukr dot net
2011-06-22 21:01 ` [Bug c++/49440] [4.5/4.6/4.7 regression] " jason at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: hordi at ukr dot net @ 2011-06-16 13:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49440
--- Comment #2 from Iurii Gordiienko <hordi at ukr dot net> 2011-06-16 13:23:47 UTC ---
Created attachment 24546
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24546
small example for reprodusing
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/49440] [4.5/4.6/4.7 regression] Invalid dynamic_cast for unnamed namespace
2011-06-16 13:19 [Bug c++/49440] New: Invalid dynamic_cast for unnamed namespace hordi at ukr dot net
2011-06-16 13:22 ` [Bug c++/49440] " hordi at ukr dot net
2011-06-16 13:24 ` hordi at ukr dot net
@ 2011-06-22 21:01 ` jason at gcc dot gnu.org
2011-06-23 16:56 ` jason at gcc dot gnu.org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2011-06-22 21:01 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49440
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2011.06.22 21:00:47
CC| |jason at gcc dot gnu.org
AssignedTo|unassigned at gcc dot |jason at gcc dot gnu.org
|gnu.org |
Summary|Invalid dynamic_cast for |[4.5/4.6/4.7 regression]
|unnamed namespace |Invalid dynamic_cast for
| |unnamed namespace
Ever Confirmed|0 |1
--- Comment #3 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-22 21:00:47 UTC ---
This is related to the change to use string comparison for matching type_infos.
We have a special case for file-local symbols, but aren't using it here for
some reason.
http://gcc.gnu.org/ml/gcc/2009-08/msg00258.html
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/49440] [4.5/4.6/4.7 regression] Invalid dynamic_cast for unnamed namespace
2011-06-16 13:19 [Bug c++/49440] New: Invalid dynamic_cast for unnamed namespace hordi at ukr dot net
` (2 preceding siblings ...)
2011-06-22 21:01 ` [Bug c++/49440] [4.5/4.6/4.7 regression] " jason at gcc dot gnu.org
@ 2011-06-23 16:56 ` jason at gcc dot gnu.org
2011-06-27 1:13 ` jason at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2011-06-23 16:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49440
--- Comment #4 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-23 16:52:52 UTC ---
Author: jason
Date: Thu Jun 23 16:52:48 2011
New Revision: 175340
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175340
Log:
PR c++/49440
* class.c (set_linkage_according_to_type): Just check TREE_PUBLIC
on the type's name.
Added:
trunk/gcc/testsuite/g++.dg/rtti/anon-ns1.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/class.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/49440] [4.5/4.6/4.7 regression] Invalid dynamic_cast for unnamed namespace
2011-06-16 13:19 [Bug c++/49440] New: Invalid dynamic_cast for unnamed namespace hordi at ukr dot net
` (3 preceding siblings ...)
2011-06-23 16:56 ` jason at gcc dot gnu.org
@ 2011-06-27 1:13 ` jason at gcc dot gnu.org
2011-06-27 1:15 ` [Bug c++/49440] [4.6 " jason at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2011-06-27 1:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49440
--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-27 01:13:36 UTC ---
Author: jason
Date: Mon Jun 27 01:13:33 2011
New Revision: 175418
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175418
Log:
PR c++/49440
* class.c (set_linkage_according_to_type): Hand off to
determine_visibility.
Added:
branches/gcc-4_5-branch/gcc/testsuite/g++.dg/rtti/anon-ns1.C
Modified:
branches/gcc-4_5-branch/gcc/cp/ChangeLog
branches/gcc-4_5-branch/gcc/cp/class.c
branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/49440] [4.6 regression] Invalid dynamic_cast for unnamed namespace
2011-06-16 13:19 [Bug c++/49440] New: Invalid dynamic_cast for unnamed namespace hordi at ukr dot net
` (4 preceding siblings ...)
2011-06-27 1:13 ` jason at gcc dot gnu.org
@ 2011-06-27 1:15 ` jason at gcc dot gnu.org
2011-06-27 20:17 ` jason at gcc dot gnu.org
2011-06-27 20:19 ` jason at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2011-06-27 1:15 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49440
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.5.4
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/49440] [4.6 regression] Invalid dynamic_cast for unnamed namespace
2011-06-16 13:19 [Bug c++/49440] New: Invalid dynamic_cast for unnamed namespace hordi at ukr dot net
` (5 preceding siblings ...)
2011-06-27 1:15 ` [Bug c++/49440] [4.6 " jason at gcc dot gnu.org
@ 2011-06-27 20:17 ` jason at gcc dot gnu.org
2011-06-27 20:19 ` jason at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2011-06-27 20:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49440
--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-27 20:16:08 UTC ---
Author: jason
Date: Mon Jun 27 20:16:02 2011
New Revision: 175558
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175558
Log:
PR c++/49440
* class.c (set_linkage_according_to_type): Hand off to
determine_visibility.
Added:
branches/gcc-4_6-branch/gcc/testsuite/g++.dg/rtti/anon-ns1.C
Modified:
branches/gcc-4_6-branch/gcc/cp/ChangeLog
branches/gcc-4_6-branch/gcc/cp/class.c
branches/gcc-4_6-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/49440] [4.6 regression] Invalid dynamic_cast for unnamed namespace
2011-06-16 13:19 [Bug c++/49440] New: Invalid dynamic_cast for unnamed namespace hordi at ukr dot net
` (6 preceding siblings ...)
2011-06-27 20:17 ` jason at gcc dot gnu.org
@ 2011-06-27 20:19 ` jason at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu.org @ 2011-06-27 20:19 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49440
Jason Merrill <jason at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #7 from Jason Merrill <jason at gcc dot gnu.org> 2011-06-27 20:18:40 UTC ---
Fixed for 4.5.4 and 4.6.2.
^ permalink raw reply [flat|nested] 9+ messages in thread
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2011-06-16 13:19 [Bug c++/49440] New: Invalid dynamic_cast for unnamed namespace hordi at ukr dot net
2011-06-16 13:22 ` [Bug c++/49440] " hordi at ukr dot net
2011-06-16 13:24 ` hordi at ukr dot net
2011-06-22 21:01 ` [Bug c++/49440] [4.5/4.6/4.7 regression] " jason at gcc dot gnu.org
2011-06-23 16:56 ` jason at gcc dot gnu.org
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