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* [Bug c++/111426] New: [11/12/13/14 Regression] "error: use of deleted function" printed twice
@ 2023-09-15 13:38 mpolacek at gcc dot gnu.org
2023-09-15 13:39 ` [Bug c++/111426] " mpolacek at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2023-09-15 13:38 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111426
Bug ID: 111426
Summary: [11/12/13/14 Regression] "error: use of deleted
function" printed twice
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mpolacek at gcc dot gnu.org
Target Milestone: ---
An inaccessible destructor prevents derivation:
struct X {
~X() = delete;
};
class D : public X { };
D d;
but we complain twice:
$ ./cc1plus -quiet q.C
q.C:6:3: error: use of deleted function ‘D::D()’
6 | D d;
| ^
q.C:5:7: note: ‘D::D()’ is implicitly deleted because the default definition
would be ill-formed:
5 | class D : public X { };
| ^
q.C:5:7: error: use of deleted function ‘X::~X()’
q.C:2:3: note: declared here
2 | ~X() = delete;
| ^
q.C:6:3: error: use of deleted function ‘D::~D()’
6 | D d;
| ^
q.C:5:7: note: ‘D::~D()’ is implicitly deleted because the default definition
would be ill-formed:
5 | class D : public X { };
| ^
q.C:5:7: error: use of deleted function ‘X::~X()’
q.C:2:3: note: declared here
2 | ~X() = delete;
| ^
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/111426] [11/12/13/14 Regression] "error: use of deleted function" printed twice
2023-09-15 13:38 [Bug c++/111426] New: [11/12/13/14 Regression] "error: use of deleted function" printed twice mpolacek at gcc dot gnu.org
@ 2023-09-15 13:39 ` mpolacek at gcc dot gnu.org
2024-03-07 22:29 ` law at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2023-09-15 13:39 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111426
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |11.5
Keywords| |diagnostic
CC| |jason at gcc dot gnu.org
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Last reconfirmed| |2023-09-15
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=106880
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r224842 so it's not a dup of bug 106880.
commit d4c9e7f92225d829ad1d18c950066cf99fc58cc7
Author: Jason Merrill <jason@redhat.com>
Date: Tue Jun 23 10:08:19 2015 -0400
re PR c++/66542 ([C++11] Can create static variable of type that has
deleted destructor)
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/111426] [11/12/13/14 Regression] "error: use of deleted function" printed twice
2023-09-15 13:38 [Bug c++/111426] New: [11/12/13/14 Regression] "error: use of deleted function" printed twice mpolacek at gcc dot gnu.org
2023-09-15 13:39 ` [Bug c++/111426] " mpolacek at gcc dot gnu.org
@ 2024-03-07 22:29 ` law at gcc dot gnu.org
2024-03-27 15:05 ` jakub at gcc dot gnu.org
2024-03-27 15:47 ` mpolacek at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: law at gcc dot gnu.org @ 2024-03-07 22:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111426
Jeffrey A. Law <law at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |law at gcc dot gnu.org
Priority|P3 |P2
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/111426] [11/12/13/14 Regression] "error: use of deleted function" printed twice
2023-09-15 13:38 [Bug c++/111426] New: [11/12/13/14 Regression] "error: use of deleted function" printed twice mpolacek at gcc dot gnu.org
2023-09-15 13:39 ` [Bug c++/111426] " mpolacek at gcc dot gnu.org
2024-03-07 22:29 ` law at gcc dot gnu.org
@ 2024-03-27 15:05 ` jakub at gcc dot gnu.org
2024-03-27 15:47 ` mpolacek at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2024-03-27 15:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111426
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
These are two different diagnostics.
One error is about using deleted D::D() and explains why it is deleted, the
other is about using deleted D::~D() and explains why it is deleted.
Do you mean we shouldn't diagnose using deleted D::~D() when we already
diagnosed some other special member (D::D() in that case)?
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/111426] [11/12/13/14 Regression] "error: use of deleted function" printed twice
2023-09-15 13:38 [Bug c++/111426] New: [11/12/13/14 Regression] "error: use of deleted function" printed twice mpolacek at gcc dot gnu.org
` (2 preceding siblings ...)
2024-03-27 15:05 ` jakub at gcc dot gnu.org
@ 2024-03-27 15:47 ` mpolacek at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2024-03-27 15:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111426
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
I meant that g++5 emitted
111426.C:7:3: error: use of deleted function ‘D::D()’
D d;
^
111426.C:6:7: note: ‘D::D()’ is implicitly deleted because the default
definition would be ill-formed:
class D : public X { };
^
111426.C:6:7: error: use of deleted function ‘X::~X()’
111426.C:3:3: note: declared here
~X() = delete;
^
which seems more user-friendly than 4 errors, and saying that X::~X() is
deleted twice. clang++ emits only one error.
But, maybe it's not that bad after all. Feel free to close this.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2023-09-15 13:38 [Bug c++/111426] New: [11/12/13/14 Regression] "error: use of deleted function" printed twice mpolacek at gcc dot gnu.org
2023-09-15 13:39 ` [Bug c++/111426] " mpolacek at gcc dot gnu.org
2024-03-07 22:29 ` law at gcc dot gnu.org
2024-03-27 15:05 ` jakub at gcc dot gnu.org
2024-03-27 15:47 ` mpolacek at gcc dot gnu.org
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