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* [Bug c++/16514] New: no warning of non-virtual dtor in subclass
@ 2004-07-13 10:20 naiman at math dot jct dot ac dot il
2004-07-13 10:28 ` [Bug c++/16514] " falk at debian dot org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: naiman at math dot jct dot ac dot il @ 2004-07-13 10:20 UTC (permalink / raw)
To: gcc-bugs
Dear G++ Folk,
An astute student found the following example:
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
class foo1 {
public:
virtual void f1 (void) {}
virtual ~foo1 (void);
};
class foo2 : public foo1 {
public:
~foo2 (void);
};
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
We believe the compiler should at least warn that foo2
has a virtual function, and non-virtual dtor.
Thank you for your time!
ATB,
Aaron Naiman
--
Aaron ("Aharon") Naiman | Jerusalem College of Technology--Machon Lev
naiman@math.jct.ac.il | http://math.jct.ac.il/~naiman
--
Summary: no warning of non-virtual dtor in subclass
Product: gcc
Version: 3.2
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: naiman at math dot jct dot ac dot il
CC: gcc-bugs at gcc dot gnu dot org,naiman at math dot jct
dot ac dot il
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16514
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/16514] no warning of non-virtual dtor in subclass 2004-07-13 10:20 [Bug c++/16514] New: no warning of non-virtual dtor in subclass naiman at math dot jct dot ac dot il @ 2004-07-13 10:28 ` falk at debian dot org 2004-07-13 11:53 ` gdr at acm dot org 2004-07-13 11:53 ` [Bug c++/16514] New: " Gabriel Dos Reis 2 siblings, 0 replies; 4+ messages in thread From: falk at debian dot org @ 2004-07-13 10:28 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From falk at debian dot org 2004-07-13 10:28 ------- foo2 does have a virtual destructor. Whether you write the "virtual" keyword or not is irrelevant. -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |INVALID http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16514 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/16514] no warning of non-virtual dtor in subclass 2004-07-13 10:20 [Bug c++/16514] New: no warning of non-virtual dtor in subclass naiman at math dot jct dot ac dot il 2004-07-13 10:28 ` [Bug c++/16514] " falk at debian dot org @ 2004-07-13 11:53 ` gdr at acm dot org 2004-07-13 11:53 ` [Bug c++/16514] New: " Gabriel Dos Reis 2 siblings, 0 replies; 4+ messages in thread From: gdr at acm dot org @ 2004-07-13 11:53 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From gdr at acm dot org 2004-07-13 11:53 ------- Subject: Re: New: no warning of non-virtual dtor in subclass naiman at math dot jct dot ac dot il: > Dear G++ Folk, > > An astute student found the following example: > > vvvvvvvvvvvvvvvvvvvvvvvvvvvvvv > class foo1 { > public: > virtual void f1 (void) {} > virtual ~foo1 (void); > }; > > class foo2 : public foo1 { > public: > ~foo2 (void); > }; > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > We believe the compiler should at least warn that foo2 > has a virtual function, and non-virtual dtor. You're mistaken: foo2 has a virtual destructor. The PR is invalid. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16514 ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [Bug c++/16514] New: no warning of non-virtual dtor in subclass 2004-07-13 10:20 [Bug c++/16514] New: no warning of non-virtual dtor in subclass naiman at math dot jct dot ac dot il 2004-07-13 10:28 ` [Bug c++/16514] " falk at debian dot org 2004-07-13 11:53 ` gdr at acm dot org @ 2004-07-13 11:53 ` Gabriel Dos Reis 2 siblings, 0 replies; 4+ messages in thread From: Gabriel Dos Reis @ 2004-07-13 11:53 UTC (permalink / raw) To: gcc-bugzilla; +Cc: gcc-bugs naiman at math dot jct dot ac dot il: > Dear G++ Folk, > > An astute student found the following example: > > vvvvvvvvvvvvvvvvvvvvvvvvvvvvvv > class foo1 { > public: > virtual void f1 (void) {} > virtual ~foo1 (void); > }; > > class foo2 : public foo1 { > public: > ~foo2 (void); > }; > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > > We believe the compiler should at least warn that foo2 > has a virtual function, and non-virtual dtor. You're mistaken: foo2 has a virtual destructor. The PR is invalid. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2004-07-13 11:53 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2004-07-13 10:20 [Bug c++/16514] New: no warning of non-virtual dtor in subclass naiman at math dot jct dot ac dot il 2004-07-13 10:28 ` [Bug c++/16514] " falk at debian dot org 2004-07-13 11:53 ` gdr at acm dot org 2004-07-13 11:53 ` [Bug c++/16514] New: " Gabriel Dos Reis
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