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* [Bug c++/105610] New: warn about cv qualifiers ignored for a base class
@ 2022-05-15 12:43 fsb4000 at yandex dot ru
2022-05-16 8:43 ` [Bug c++/105610] " redi at gcc dot gnu.org
2022-05-16 9:34 ` fsb4000 at yandex dot ru
0 siblings, 2 replies; 3+ messages in thread
From: fsb4000 at yandex dot ru @ 2022-05-15 12:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105610
Bug ID: 105610
Summary: warn about cv qualifiers ignored for a base class
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: fsb4000 at yandex dot ru
Target Milestone: ---
No bug here, but a feature request.
it would be nice if for such code
class Base {
public:
int base;
};
typedef const Base ConstBase;
class CDerived: public ConstBase {
public:
int derived;
};
gcc reports a warning.
http://eel.is/c++draft/class.derived.general#2.sentence-2
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/105610] warn about cv qualifiers ignored for a base class
2022-05-15 12:43 [Bug c++/105610] New: warn about cv qualifiers ignored for a base class fsb4000 at yandex dot ru
@ 2022-05-16 8:43 ` redi at gcc dot gnu.org
2022-05-16 9:34 ` fsb4000 at yandex dot ru
1 sibling, 0 replies; 3+ messages in thread
From: redi at gcc dot gnu.org @ 2022-05-16 8:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105610
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I don't see any benefit to this warning. What harm does the example code do?
Has anybody ever been confused about the semantics, and expected the
cv-qualifiers to have an effect?
If this language feature doesn't lead to confusion or mistaken code, why should
there be a warning?
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/105610] warn about cv qualifiers ignored for a base class
2022-05-15 12:43 [Bug c++/105610] New: warn about cv qualifiers ignored for a base class fsb4000 at yandex dot ru
2022-05-16 8:43 ` [Bug c++/105610] " redi at gcc dot gnu.org
@ 2022-05-16 9:34 ` fsb4000 at yandex dot ru
1 sibling, 0 replies; 3+ messages in thread
From: fsb4000 at yandex dot ru @ 2022-05-16 9:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105610
--- Comment #2 from fsb4000 at yandex dot ru ---
>Has anybody ever been confused about the semantics, and expected the cv-qualifiers to have an effect?
Yes. I saw a question on one forum why constness is not taken into account when
inheriting and whether there is a compiler bug.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2022-05-16 9:34 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2022-05-15 12:43 [Bug c++/105610] New: warn about cv qualifiers ignored for a base class fsb4000 at yandex dot ru
2022-05-16 8:43 ` [Bug c++/105610] " redi at gcc dot gnu.org
2022-05-16 9:34 ` fsb4000 at yandex dot ru
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