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* [Bug c++/94492] New: no way to silence -Wdeprecated-copy for aggregates
@ 2020-04-05 20:13 nok.raven at gmail dot com
2020-04-06 20:06 ` [Bug c++/94492] " redi at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: nok.raven at gmail dot com @ 2020-04-05 20:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94492
Bug ID: 94492
Summary: no way to silence -Wdeprecated-copy for aggregates
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: nok.raven at gmail dot com
Target Milestone: ---
There is no way to silence the warning without making a type non-aggregate.
A simplified case from Boost.Proto:
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-copy"
struct expr
{
int a, b;
expr& operator=(const expr&) { return *this; }
};
#pragma GCC diagnostic pop
#include <type_traits>
static_assert(std::is_aggregate_v<expr>);
expr foo(expr e)
{
return e;
}
<source>: In function 'expr foo(expr)':
<source>:15:12: error: implicitly-declared 'constexpr expr::expr(const expr&)'
is deprecated [-Werror=deprecated-copy]
15 | return e;
| ^
<source>:6:11: note: because 'expr' has user-provided 'expr&
expr::operator=(const expr&)'
6 | expr& operator=(const expr&) { return *this; }
| ^~~~~~~~
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/94492] no way to silence -Wdeprecated-copy for aggregates 2020-04-05 20:13 [Bug c++/94492] New: no way to silence -Wdeprecated-copy for aggregates nok.raven at gmail dot com @ 2020-04-06 20:06 ` redi at gcc dot gnu.org 2021-04-27 21:12 ` jason at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: redi at gcc dot gnu.org @ 2020-04-06 20:06 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94492 Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2020-04-06 Ever confirmed|0 |1 Status|UNCONFIRMED |NEW ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/94492] no way to silence -Wdeprecated-copy for aggregates 2020-04-05 20:13 [Bug c++/94492] New: no way to silence -Wdeprecated-copy for aggregates nok.raven at gmail dot com 2020-04-06 20:06 ` [Bug c++/94492] " redi at gcc dot gnu.org @ 2021-04-27 21:12 ` jason at gcc dot gnu.org 2021-06-01 15:38 ` cvs-commit at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: jason at gcc dot gnu.org @ 2021-04-27 21:12 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94492 Jason Merrill <jason at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at gcc dot gnu.org |jason at gcc dot gnu.org Status|NEW |ASSIGNED CC| |jason at gcc dot gnu.org ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/94492] no way to silence -Wdeprecated-copy for aggregates 2020-04-05 20:13 [Bug c++/94492] New: no way to silence -Wdeprecated-copy for aggregates nok.raven at gmail dot com 2020-04-06 20:06 ` [Bug c++/94492] " redi at gcc dot gnu.org 2021-04-27 21:12 ` jason at gcc dot gnu.org @ 2021-06-01 15:38 ` cvs-commit at gcc dot gnu.org 2021-06-03 1:52 ` nok.raven at gmail dot com 2021-08-11 20:41 ` pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2021-06-01 15:38 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94492 --- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>: https://gcc.gnu.org/g:620cd7861e1266991c9c2a82e1e2d5f4d723ec88 commit r12-1144-g620cd7861e1266991c9c2a82e1e2d5f4d723ec88 Author: Jason Merrill <jason@redhat.com> Date: Tue Apr 27 17:13:39 2021 -0400 c++: -Wdeprecated-copy and #pragma diagnostic [PR94492] -Wdeprecated-copy was depending only on the state of the warning at the point where we call the function, making it hard to use #pragma diagnostic to suppress the warning for a particular implicitly declared function. But checking whether the warning is enabled at the location of the implicit declaration turned out to be a bit complicated; option_enabled only tests whether it was enabled at the start of compilation, the actual test only existed in the middle of diagnostic_report_diagnostic. So this patch factors it out and adds a new warning_enabled function to diagnostic.h. gcc/ChangeLog: PR c++/94492 * diagnostic.h (warning_enabled_at): Declare. * diagnostic.c (diagnostic_enabled): Factor out from... (diagnostic_report_diagnostic): ...here. (warning_enabled_at): New. gcc/cp/ChangeLog: PR c++/94492 * decl2.c (cp_warn_deprecated_use): Check warning_enabled_at. gcc/testsuite/ChangeLog: PR c++/94492 * g++.dg/cpp0x/depr-copy4.C: New test. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/94492] no way to silence -Wdeprecated-copy for aggregates 2020-04-05 20:13 [Bug c++/94492] New: no way to silence -Wdeprecated-copy for aggregates nok.raven at gmail dot com ` (2 preceding siblings ...) 2021-06-01 15:38 ` cvs-commit at gcc dot gnu.org @ 2021-06-03 1:52 ` nok.raven at gmail dot com 2021-08-11 20:41 ` pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: nok.raven at gmail dot com @ 2021-06-03 1:52 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94492 --- Comment #2 from Nikita Kniazev <nok.raven at gmail dot com> --- Could this be backported? The issue affects every release with -Wdeprecated-copy, which are GCC 9+. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/94492] no way to silence -Wdeprecated-copy for aggregates 2020-04-05 20:13 [Bug c++/94492] New: no way to silence -Wdeprecated-copy for aggregates nok.raven at gmail dot com ` (3 preceding siblings ...) 2021-06-03 1:52 ` nok.raven at gmail dot com @ 2021-08-11 20:41 ` pinskia at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-08-11 20:41 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94492 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED Target Milestone|--- |12.0 --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Fixed. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-08-11 20:41 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-04-05 20:13 [Bug c++/94492] New: no way to silence -Wdeprecated-copy for aggregates nok.raven at gmail dot com 2020-04-06 20:06 ` [Bug c++/94492] " redi at gcc dot gnu.org 2021-04-27 21:12 ` jason at gcc dot gnu.org 2021-06-01 15:38 ` cvs-commit at gcc dot gnu.org 2021-06-03 1:52 ` nok.raven at gmail dot com 2021-08-11 20:41 ` pinskia at gcc dot gnu.org
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