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* [Bug c++/107764] New: -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches
@ 2022-11-19 19:42 pinskia at gcc dot gnu.org
2022-11-19 20:23 ` [Bug c++/107764] " pinskia at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2022-11-19 19:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107764
Bug ID: 107764
Summary: -Wreturn-type and -Wuninitialized documentation could
link to a FAQ about enum and switches
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Keywords: documentation
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: pinskia at gcc dot gnu.org
Target Milestone: ---
I have noticed GCC gets bug reports about false positive with -Wreturn-type or
-Wuninitialized and enums in a switch statement. WE should have a FAQ about
enums dealing with how they work; especially with switch statements and link to
that part of the document from those two warnings.
And also the FAQ should talk about the interaction with -fstrict-enum option
for C++.
https://gcc.gnu.org/legacy-ml/gcc/2007-01/msg01179.html
There are definitely some more bug reports that I didn't link in the see also.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug c++/107764] -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches 2022-11-19 19:42 [Bug c++/107764] New: -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches pinskia at gcc dot gnu.org @ 2022-11-19 20:23 ` pinskia at gcc dot gnu.org 2022-11-21 4:19 ` egallager at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: pinskia at gcc dot gnu.org @ 2022-11-19 20:23 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107764 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- It also does not help that clang and GCC disagree on how the C++ enums work either. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/107764] -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches 2022-11-19 19:42 [Bug c++/107764] New: -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches pinskia at gcc dot gnu.org 2022-11-19 20:23 ` [Bug c++/107764] " pinskia at gcc dot gnu.org @ 2022-11-21 4:19 ` egallager at gcc dot gnu.org 2022-11-21 10:16 ` redi at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: egallager at gcc dot gnu.org @ 2022-11-21 4:19 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107764 Eric Gallager <egallager at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed| |2022-11-21 CC| |egallager at gcc dot gnu.org Status|UNCONFIRMED |NEW Ever confirmed|0 |1 --- Comment #2 from Eric Gallager <egallager at gcc dot gnu.org> --- Yeah this is definitely one I've noticed before; confirmed. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/107764] -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches 2022-11-19 19:42 [Bug c++/107764] New: -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches pinskia at gcc dot gnu.org 2022-11-19 20:23 ` [Bug c++/107764] " pinskia at gcc dot gnu.org 2022-11-21 4:19 ` egallager at gcc dot gnu.org @ 2022-11-21 10:16 ` redi at gcc dot gnu.org 2022-11-21 10:17 ` redi at gcc dot gnu.org 2022-11-22 8:40 ` marxin at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: redi at gcc dot gnu.org @ 2022-11-21 10:16 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107764 --- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- We do have a FAQ, I wrote one: https://gcc.gnu.org/wiki/VerboseDiagnostics#enum_switch ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/107764] -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches 2022-11-19 19:42 [Bug c++/107764] New: -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches pinskia at gcc dot gnu.org ` (2 preceding siblings ...) 2022-11-21 10:16 ` redi at gcc dot gnu.org @ 2022-11-21 10:17 ` redi at gcc dot gnu.org 2022-11-22 8:40 ` marxin at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: redi at gcc dot gnu.org @ 2022-11-21 10:17 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107764 --- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- It could be moved to https://gcc.gnu.org/bugs/#nonbugs_cxx though, if we want to link to it from diagnostics. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/107764] -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches 2022-11-19 19:42 [Bug c++/107764] New: -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches pinskia at gcc dot gnu.org ` (3 preceding siblings ...) 2022-11-21 10:17 ` redi at gcc dot gnu.org @ 2022-11-22 8:40 ` marxin at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: marxin at gcc dot gnu.org @ 2022-11-22 8:40 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107764 --- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> --- Or it can be even includeded in https://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Misunderstandings.html#C_002b_002b-Misunderstandings (or next to -Wreturn-type and -Wuninitialized). Well, our documentation effort is really discrete :/ ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2022-11-22 8:40 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2022-11-19 19:42 [Bug c++/107764] New: -Wreturn-type and -Wuninitialized documentation could link to a FAQ about enum and switches pinskia at gcc dot gnu.org 2022-11-19 20:23 ` [Bug c++/107764] " pinskia at gcc dot gnu.org 2022-11-21 4:19 ` egallager at gcc dot gnu.org 2022-11-21 10:16 ` redi at gcc dot gnu.org 2022-11-21 10:17 ` redi at gcc dot gnu.org 2022-11-22 8:40 ` marxin at gcc dot gnu.org
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