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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) -- links below jump to the message on this page -- 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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