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* [Bug c++/107292] New: no warning for unused std::error_code
@ 2022-10-17 11:42 trass3r at gmail dot com
2022-10-19 21:02 ` [Bug c++/107292] " pinskia at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: trass3r at gmail dot com @ 2022-10-17 11:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107292
Bug ID: 107292
Summary: no warning for unused std::error_code
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: trass3r at gmail dot com
Target Milestone: ---
#include <system_error>
void foo()
{
std::error_code ec;
}
The code does get optimized away as system_category() is [[gnu::const]] but
there is no -Wunused warning.
https://godbolt.org/z/M68ToY78b
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c++/107292] no warning for unused std::error_code
2022-10-17 11:42 [Bug c++/107292] New: no warning for unused std::error_code trass3r at gmail dot com
@ 2022-10-19 21:02 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-10-19 21:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107292
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
this might require some new attributes to put on the constructor saying it will
not be used if the variable is not used for diagnostic reasons.
I don't think this can be done without any major changes like that really.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2022-10-17 11:42 [Bug c++/107292] New: no warning for unused std::error_code trass3r at gmail dot com
2022-10-19 21:02 ` [Bug c++/107292] " pinskia at gcc dot gnu.org
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