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* [Bug c++/61229] warn_unused_result fails to work with member functions
[not found] <bug-61229-4@http.gcc.gnu.org/bugzilla/>
@ 2014-05-19 12:15 ` redi at gcc dot gnu.org
2014-05-19 12:35 ` plasmahh at gmx dot net
2015-02-02 14:33 ` thomas.huxhorn at web dot de
2 siblings, 0 replies; 3+ messages in thread
From: redi at gcc dot gnu.org @ 2014-05-19 12:15 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61229
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
You get a warning if you call B::foo or if it's not inline.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/61229] warn_unused_result fails to work with member functions
[not found] <bug-61229-4@http.gcc.gnu.org/bugzilla/>
2014-05-19 12:15 ` [Bug c++/61229] warn_unused_result fails to work with member functions redi at gcc dot gnu.org
@ 2014-05-19 12:35 ` plasmahh at gmx dot net
2015-02-02 14:33 ` thomas.huxhorn at web dot de
2 siblings, 0 replies; 3+ messages in thread
From: plasmahh at gmx dot net @ 2014-05-19 12:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61229
Dennis Lubert <plasmahh at gmx dot net> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|INVALID |---
--- Comment #2 from Dennis Lubert <plasmahh at gmx dot net> ---
Since someone else pointed out that there is a bug talking about duplicates
already, now how my real code is more like the following. Also note that it
warns when I remove the dtor of evr.
struct evr
{
~evr( );
};
struct evd
{
virtual __attribute__((warn_unused_result)) evr rs( ) = 0;
};
class sd
{
[[gnu::warn_unused_result]] evr callme( evd& );
};
evr sd::callme( evd& edis )
{
edis.rs();
}
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/61229] warn_unused_result fails to work with member functions
[not found] <bug-61229-4@http.gcc.gnu.org/bugzilla/>
2014-05-19 12:15 ` [Bug c++/61229] warn_unused_result fails to work with member functions redi at gcc dot gnu.org
2014-05-19 12:35 ` plasmahh at gmx dot net
@ 2015-02-02 14:33 ` thomas.huxhorn at web dot de
2 siblings, 0 replies; 3+ messages in thread
From: thomas.huxhorn at web dot de @ 2015-02-02 14:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61229
Thomas Huxhorn <thomas.huxhorn at web dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |thomas.huxhorn at web dot de
--- Comment #3 from Thomas Huxhorn <thomas.huxhorn at web dot de> ---
Here is another one:
class C {
public:
~C() {} // comment out to trigger warning at c.noWarning()
int giveWarning() __attribute__((warn_unused_result)) { return 0; }
C noWarning() __attribute__((warn_unused_result)) { return C(); }
};
int main() {
C c;
c.giveWarning();
c.noWarning();
return 0;
}
A workaround for me is to delete the empty deconstrcutor. But thats not always
possible :/
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2015-02-02 14:33 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-61229-4@http.gcc.gnu.org/bugzilla/>
2014-05-19 12:15 ` [Bug c++/61229] warn_unused_result fails to work with member functions redi at gcc dot gnu.org
2014-05-19 12:35 ` plasmahh at gmx dot net
2015-02-02 14:33 ` thomas.huxhorn at web dot de
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