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* [Bug objc/47682] New: unused-but-set-variabled warning when using fast enumeration
@ 2011-02-10 17:04 jos at kuijpersvof dot nl
2011-02-10 18:28 ` [Bug objc/47682] " pinskia at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: jos at kuijpersvof dot nl @ 2011-02-10 17:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47682
Summary: unused-but-set-variabled warning when using fast
enumeration
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: objc
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jos@kuijpersvof.nl
When setting a variable and enumerating through it using fast enumeration, the
compiler does not see it as usage of the variable. Using -Wall gives a warning:
$ objfw-compile -Wall -o fetest fetest.m
fetest.m: In function â-[test applicationDidFinishLaunching]â:
fetest.m:11:11: warning: variable âarrâ set but not used
[-Wunused-but-set-variable]
$ ./fetest
[2011-02-10 17:43:35.021 fetest(22073)] Item: Foo
[2011-02-10 17:43:35.022 fetest(22073)] Item: Bar
$ cat fetest.m
#import <ObjFW/ObjFW.h>
@interface test : OFObject @end
OF_APPLICATION_DELEGATE(test)
@implementation test
- (void)applicationDidFinishLaunching
{
OFArray *arr;
arr = [OFArray arrayWithObjects:@"Foo",@"Bar",nil];
for(OFString *str in arr)
{
of_log(@"Item: %@",str);
}
}
@end
$ gcc-4.6 -v
Using built-in specs.
COLLECT_GCC=gcc-4.6
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ./configure --disable-multilib --program-suffix=-4.6
--prefix=/usr/local/ --enable-languages=c,c++,objc,obj-c++ --enable-threads
Thread model: posix
gcc version 4.6.0 20101219 (experimental) (GCC)
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug objc/47682] unused-but-set-variabled warning when using fast enumeration
2011-02-10 17:04 [Bug objc/47682] New: unused-but-set-variabled warning when using fast enumeration jos at kuijpersvof dot nl
@ 2011-02-10 18:28 ` pinskia at gcc dot gnu.org
2011-02-10 19:28 ` nicola at gcc dot gnu.org
2011-05-24 12:42 ` nicola at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2011-02-10 18:28 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47682
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-02-10 18:27:03 UTC ---
This was supposed to be fixed by
http://gcc.gnu.org/ml/gcc-cvs/2010-12/msg00199.html .
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug objc/47682] unused-but-set-variabled warning when using fast enumeration
2011-02-10 17:04 [Bug objc/47682] New: unused-but-set-variabled warning when using fast enumeration jos at kuijpersvof dot nl
2011-02-10 18:28 ` [Bug objc/47682] " pinskia at gcc dot gnu.org
@ 2011-02-10 19:28 ` nicola at gcc dot gnu.org
2011-05-24 12:42 ` nicola at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: nicola at gcc dot gnu.org @ 2011-02-10 19:28 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47682
Nicola Pero <nicola at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2011.02.10 19:24:33
CC| |nicola at gcc dot gnu.org
Ever Confirmed|0 |1
--- Comment #2 from Nicola Pero <nicola at gcc dot gnu.org> 2011-02-10 19:24:33 UTC ---
Yes, this is supposed to have been fixed, even if not by me ;-)
It was Iain who fixed it --
http://gcc.gnu.org/ml/gcc-cvs/2011-01/msg00219.html
I see that Jos is using "gcc version 4.6.0 20101219 (experimental) (GCC)",
which
I'd expect wouldn't include the fix.
I asked him (offline) if he could try again with a newer compiler. It works
for me with GNUstep and GCC 4.6 trunk.
Thanks
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug objc/47682] unused-but-set-variabled warning when using fast enumeration
2011-02-10 17:04 [Bug objc/47682] New: unused-but-set-variabled warning when using fast enumeration jos at kuijpersvof dot nl
2011-02-10 18:28 ` [Bug objc/47682] " pinskia at gcc dot gnu.org
2011-02-10 19:28 ` nicola at gcc dot gnu.org
@ 2011-05-24 12:42 ` nicola at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: nicola at gcc dot gnu.org @ 2011-05-24 12:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47682
Nicola Pero <nicola at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |FIXED
--- Comment #3 from Nicola Pero <nicola at gcc dot gnu.org> 2011-05-24 11:56:54 UTC ---
3 months have passed with no reply; assuming resolved. It certainly works for
me. :-)
Thanks
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2011-05-24 12:12 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2011-02-10 17:04 [Bug objc/47682] New: unused-but-set-variabled warning when using fast enumeration jos at kuijpersvof dot nl
2011-02-10 18:28 ` [Bug objc/47682] " pinskia at gcc dot gnu.org
2011-02-10 19:28 ` nicola at gcc dot gnu.org
2011-05-24 12:42 ` nicola at gcc dot gnu.org
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