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* [Bug c++/60829] New: Illegal access to private base of public base granted.
@ 2014-04-12 0:25 arm.nahm at gmx dot de
2014-04-12 0:27 ` [Bug c++/60829] " arm.nahm at gmx dot de
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: arm.nahm at gmx dot de @ 2014-04-12 0:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60829
Bug ID: 60829
Summary: Illegal access to private base of public base granted.
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: arm.nahm at gmx dot de
struct A{};
class B: A {};
struct C: A {};
struct D: B, C {
D() { B::a = 0; }
};
The above code compiles in g++, even though the standard does not allow D
access to any member of the private base class A of public base class B.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/60829] Illegal access to private base of public base granted.
2014-04-12 0:25 [Bug c++/60829] New: Illegal access to private base of public base granted arm.nahm at gmx dot de
@ 2014-04-12 0:27 ` arm.nahm at gmx dot de
2014-04-12 6:16 ` glisse at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: arm.nahm at gmx dot de @ 2014-04-12 0:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60829
--- Comment #1 from arm.nahm at gmx dot de ---
First reported on StackOverflow:
http://stackoverflow.com/questions/23024091/multiple-inheritance-makes-private-member-accessible
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/60829] Illegal access to private base of public base granted.
2014-04-12 0:25 [Bug c++/60829] New: Illegal access to private base of public base granted arm.nahm at gmx dot de
2014-04-12 0:27 ` [Bug c++/60829] " arm.nahm at gmx dot de
@ 2014-04-12 6:16 ` glisse at gcc dot gnu.org
2014-04-12 6:35 ` trippels at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: glisse at gcc dot gnu.org @ 2014-04-12 6:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60829
--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to arm.nahm from comment #0)
> The above code compiles in g++,
No it doesn't. Please make sure to copy-paste directly from a file you have
tested.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/60829] Illegal access to private base of public base granted.
2014-04-12 0:25 [Bug c++/60829] New: Illegal access to private base of public base granted arm.nahm at gmx dot de
2014-04-12 0:27 ` [Bug c++/60829] " arm.nahm at gmx dot de
2014-04-12 6:16 ` glisse at gcc dot gnu.org
@ 2014-04-12 6:35 ` trippels at gcc dot gnu.org
2014-04-14 14:56 ` trippels at gcc dot gnu.org
2014-06-12 13:53 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: trippels at gcc dot gnu.org @ 2014-04-12 6:35 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60829
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-04-12
CC| |trippels at gcc dot gnu.org
Target Milestone|--- |4.7.5
Ever confirmed|0 |1
Known to fail| |4.7.3, 4.8.3, 4.9.0
--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
markus@x4 /tmp % cat test.ii
class A
{
public:
int a;
};
class B : private A
{
};
class C : public A
{
};
class D : public B, public C
{
D () { B::a = 0; }
};
markus@x4 /tmp % g++ -c test.ii
markus@x4 /tmp % clang++ -c test.ii
test.ii:17:13: error: cannot cast 'B' to its private base class 'A'
D () { B::a = 0; }
^
test.ii:7:11: note: declared private here
class B : private A
^~~~~~~~~
test.ii:17:13: error: 'a' is a private member of 'A'
D () { B::a = 0; }
^
test.ii:7:11: note: constrained by private inheritance here
class B : private A
^~~~~~~~~
test.ii:4:7: note: member is declared here
int a;
^
2 errors generated.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/60829] Illegal access to private base of public base granted.
2014-04-12 0:25 [Bug c++/60829] New: Illegal access to private base of public base granted arm.nahm at gmx dot de
` (2 preceding siblings ...)
2014-04-12 6:35 ` trippels at gcc dot gnu.org
@ 2014-04-14 14:56 ` trippels at gcc dot gnu.org
2014-06-12 13:53 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: trippels at gcc dot gnu.org @ 2014-04-14 14:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60829
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jason at gcc dot gnu.org
--- Comment #4 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
EDG also rejects the code:
test.ii(17): error #308: member "A::a" (declared at line 4) is inaccessible
D () { B::a = 0; }
^
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/60829] Illegal access to private base of public base granted.
2014-04-12 0:25 [Bug c++/60829] New: Illegal access to private base of public base granted arm.nahm at gmx dot de
` (3 preceding siblings ...)
2014-04-14 14:56 ` trippels at gcc dot gnu.org
@ 2014-06-12 13:53 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-06-12 13:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60829
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.7.5 |---
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Unsetting target milestone of open non-regression bug from version of branch
being closed.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-06-12 13:53 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2014-04-12 0:25 [Bug c++/60829] New: Illegal access to private base of public base granted arm.nahm at gmx dot de
2014-04-12 0:27 ` [Bug c++/60829] " arm.nahm at gmx dot de
2014-04-12 6:16 ` glisse at gcc dot gnu.org
2014-04-12 6:35 ` trippels at gcc dot gnu.org
2014-04-14 14:56 ` trippels at gcc dot gnu.org
2014-06-12 13:53 ` rguenth at gcc dot gnu.org
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