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* [Bug c++/29470] New: Using declaration access semantics change with templates
@ 2006-10-14 18:55 spam at david dot osborn dot name
2006-10-14 19:02 ` [Bug c++/29470] [4.1/4.2 Regression] " pinskia at gcc dot gnu dot org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: spam at david dot osborn dot name @ 2006-10-14 18:55 UTC (permalink / raw)
To: gcc-bugs
In the following class template, the protected using declaration causes the
inherited member to become publicly accessible. The code compiles, even though
it shouldn't.
template <typename T> struct B
{
protected:
T v;
};
template <typename T> struct D : B<T>
{
protected:
using B<T>::v;
};
int main()
{
D<int> d;
d.v = 0;
return 0;
}
$ g++ test.cpp
The same code without templates gives the correct behaviour and doesn't
compile.
struct B
{
protected:
int v;
};
struct D : B
{
protected:
using B::v;
};
int main()
{
D d;
d.v = 0;
return 0;
}
$ g++ test.cpp
test.cpp: In function 'int main()':
test.cpp:4: error: 'int B::v' is protected
test.cpp:14: error: within this context
The preprocessed file from the template version is as follows:
# 1 "test.cpp"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "test.cpp"
template <typename T> struct B
{
protected:
T v;
};
template <typename T> struct D : B<T>
{
protected:
using B<T>::v;
};
int main()
{
D<int> d;
d.v = 0;
return 0;
}
--
Summary: Using declaration access semantics change with templates
Product: gcc
Version: 4.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: spam at david dot osborn dot name
GCC build triplet: i686-pc-mingw32
GCC host triplet: i686-pc-mingw32
GCC target triplet: i686-pc-mingw32
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29470
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/29470] [4.1/4.2 Regression] Using declaration access semantics change with templates
2006-10-14 18:55 [Bug c++/29470] New: Using declaration access semantics change with templates spam at david dot osborn dot name
@ 2006-10-14 19:02 ` pinskia at gcc dot gnu dot org
2006-10-15 21:28 ` mmitchel at gcc dot gnu dot org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-10-14 19:02 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from pinskia at gcc dot gnu dot org 2006-10-14 19:02 -------
Confirmed, a regression from 4.0.4.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
GCC build triplet|i686-pc-mingw32 |
GCC host triplet|i686-pc-mingw32 |
GCC target triplet|i686-pc-mingw32 |
Keywords| |accepts-invalid
Known to fail| |4.1.2 4.2.0 4.1.1
Known to work| |4.0.4
Last reconfirmed|0000-00-00 00:00:00 |2006-10-14 19:02:48
date| |
Summary|Using declaration access |[4.1/4.2 Regression] Using
|semantics change with |declaration access semantics
|templates |change with templates
Target Milestone|--- |4.1.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29470
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/29470] [4.1/4.2 Regression] Using declaration access semantics change with templates
2006-10-14 18:55 [Bug c++/29470] New: Using declaration access semantics change with templates spam at david dot osborn dot name
2006-10-14 19:02 ` [Bug c++/29470] [4.1/4.2 Regression] " pinskia at gcc dot gnu dot org
@ 2006-10-15 21:28 ` mmitchel at gcc dot gnu dot org
2006-10-16 23:50 ` janis at gcc dot gnu dot org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2006-10-15 21:28 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29470
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/29470] [4.1/4.2 Regression] Using declaration access semantics change with templates
2006-10-14 18:55 [Bug c++/29470] New: Using declaration access semantics change with templates spam at david dot osborn dot name
2006-10-14 19:02 ` [Bug c++/29470] [4.1/4.2 Regression] " pinskia at gcc dot gnu dot org
2006-10-15 21:28 ` mmitchel at gcc dot gnu dot org
@ 2006-10-16 23:50 ` janis at gcc dot gnu dot org
2007-02-14 9:37 ` [Bug c++/29470] [4.1/4.2/4.3 " mmitchel at gcc dot gnu dot org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: janis at gcc dot gnu dot org @ 2006-10-16 23:50 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from janis at gcc dot gnu dot org 2006-10-16 23:49 -------
A regression hunt identified the following patch:
http://gcc.gnu.org/viewcvs?view=rev&rev=100757
r100757 | nathan | 2005-06-08 11:49:23 +0000 (Wed, 08 Jun 2005)
--
janis at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |nathan at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29470
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/29470] [4.1/4.2/4.3 Regression] Using declaration access semantics change with templates
2006-10-14 18:55 [Bug c++/29470] New: Using declaration access semantics change with templates spam at david dot osborn dot name
` (2 preceding siblings ...)
2006-10-16 23:50 ` janis at gcc dot gnu dot org
@ 2007-02-14 9:37 ` mmitchel at gcc dot gnu dot org
2008-07-04 21:39 ` [Bug c++/29470] [4.2/4.3/4.4 " jsm28 at gcc dot gnu dot org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2007-02-14 9:37 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.1.2 |4.1.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29470
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/29470] [4.2/4.3/4.4 Regression] Using declaration access semantics change with templates
2006-10-14 18:55 [Bug c++/29470] New: Using declaration access semantics change with templates spam at david dot osborn dot name
` (3 preceding siblings ...)
2007-02-14 9:37 ` [Bug c++/29470] [4.1/4.2/4.3 " mmitchel at gcc dot gnu dot org
@ 2008-07-04 21:39 ` jsm28 at gcc dot gnu dot org
2009-01-16 20:05 ` jason at gcc dot gnu dot org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2008-07-04 21:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from jsm28 at gcc dot gnu dot org 2008-07-04 21:38 -------
Closing 4.1 branch.
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.1/4.2/4.3/4.4 Regression]|[4.2/4.3/4.4 Regression]
|Using declaration access |Using declaration access
|semantics change with |semantics change with
|templates |templates
Target Milestone|4.1.3 |4.2.5
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29470
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/29470] [4.2/4.3/4.4 Regression] Using declaration access semantics change with templates
2006-10-14 18:55 [Bug c++/29470] New: Using declaration access semantics change with templates spam at david dot osborn dot name
` (4 preceding siblings ...)
2008-07-04 21:39 ` [Bug c++/29470] [4.2/4.3/4.4 " jsm28 at gcc dot gnu dot org
@ 2009-01-16 20:05 ` jason at gcc dot gnu dot org
2009-01-16 22:36 ` jason at gcc dot gnu dot org
2009-01-16 22:46 ` jason at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu dot org @ 2009-01-16 20:05 UTC (permalink / raw)
To: gcc-bugs
--
jason at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jason at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
Last reconfirmed|2006-10-14 19:02:48 |2009-01-16 20:05:23
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29470
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/29470] [4.2/4.3/4.4 Regression] Using declaration access semantics change with templates
2006-10-14 18:55 [Bug c++/29470] New: Using declaration access semantics change with templates spam at david dot osborn dot name
` (5 preceding siblings ...)
2009-01-16 20:05 ` jason at gcc dot gnu dot org
@ 2009-01-16 22:36 ` jason at gcc dot gnu dot org
2009-01-16 22:46 ` jason at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu dot org @ 2009-01-16 22:36 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from jason at gcc dot gnu dot org 2009-01-16 22:36 -------
Subject: Bug 29470
Author: jason
Date: Fri Jan 16 22:36:11 2009
New Revision: 143445
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143445
Log:
PR c++/29470
* pt.c (tsubst_decl) [USING_DECL]: Propagate access flags.
Added:
trunk/gcc/testsuite/g++.dg/template/access20.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/pt.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/g++.dg/torture/pr34641.C
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29470
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/29470] [4.2/4.3/4.4 Regression] Using declaration access semantics change with templates
2006-10-14 18:55 [Bug c++/29470] New: Using declaration access semantics change with templates spam at david dot osborn dot name
` (6 preceding siblings ...)
2009-01-16 22:36 ` jason at gcc dot gnu dot org
@ 2009-01-16 22:46 ` jason at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: jason at gcc dot gnu dot org @ 2009-01-16 22:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from jason at gcc dot gnu dot org 2009-01-16 22:46 -------
Fixed for 4.4, not fixing accepts-invalid on other branches.
--
jason at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29470
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2009-01-16 22:46 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
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2006-10-14 18:55 [Bug c++/29470] New: Using declaration access semantics change with templates spam at david dot osborn dot name
2006-10-14 19:02 ` [Bug c++/29470] [4.1/4.2 Regression] " pinskia at gcc dot gnu dot org
2006-10-15 21:28 ` mmitchel at gcc dot gnu dot org
2006-10-16 23:50 ` janis at gcc dot gnu dot org
2007-02-14 9:37 ` [Bug c++/29470] [4.1/4.2/4.3 " mmitchel at gcc dot gnu dot org
2008-07-04 21:39 ` [Bug c++/29470] [4.2/4.3/4.4 " jsm28 at gcc dot gnu dot org
2009-01-16 20:05 ` jason at gcc dot gnu dot org
2009-01-16 22:36 ` jason at gcc dot gnu dot org
2009-01-16 22:46 ` jason at gcc dot gnu dot org
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