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* [Bug c/47376] New: Duplicate member through anonymous unions not reported
@ 2011-01-20 13:17 jengelh at medozas dot de
2011-02-07 2:00 ` [Bug c/47376] " jsm28 at gcc dot gnu.org
2011-02-07 2:00 ` jsm28 at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: jengelh at medozas dot de @ 2011-01-20 13:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47376
Summary: Duplicate member through anonymous unions not reported
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jengelh@medozas.de
Host: x86_64-suse-linux
Target: x86_64-suse-linux
Build: x86_64-suse-linux
Given the following example:
---
struct foo {
int a;
union {
int a;
double b;
};
};
int main(void)
{
struct foo f;
f.a = 123;
return 0;
}
---
How it came to be:
Accidental error where I had forgotten to remove foo.a after having added
foo.{anonymous}.a.
What has been observed:
It compiles fine, which caused this programming error of mine to go unnoticed
for half a day. It seems gcc gives foo.a precedence over foo.{anonymous}.a when
accessing it through f.a=....
What had been expected:
I would have liked that gcc emit at least a warning because f.a is ambiguous.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c/47376] Duplicate member through anonymous unions not reported
2011-01-20 13:17 [Bug c/47376] New: Duplicate member through anonymous unions not reported jengelh at medozas dot de
2011-02-07 2:00 ` [Bug c/47376] " jsm28 at gcc dot gnu.org
@ 2011-02-07 2:00 ` jsm28 at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2011-02-07 2:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47376
Joseph S. Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.6.0
--- Comment #1 from Joseph S. Myers <jsm28 at gcc dot gnu.org> 2011-02-07 01:59:50 UTC ---
Fixed in 4.6.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c/47376] Duplicate member through anonymous unions not reported
2011-01-20 13:17 [Bug c/47376] New: Duplicate member through anonymous unions not reported jengelh at medozas dot de
@ 2011-02-07 2:00 ` jsm28 at gcc dot gnu.org
2011-02-07 2:00 ` jsm28 at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2011-02-07 2:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47376
Joseph S. Myers <jsm28 at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
--- Comment #2 from Joseph S. Myers <jsm28 at gcc dot gnu.org> 2011-02-07 02:00:15 UTC ---
Fixed in 4.6.
*** This bug has been marked as a duplicate of bug 4784 ***
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2011-02-07 2:00 UTC | newest]
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2011-01-20 13:17 [Bug c/47376] New: Duplicate member through anonymous unions not reported jengelh at medozas dot de
2011-02-07 2:00 ` [Bug c/47376] " jsm28 at gcc dot gnu.org
2011-02-07 2:00 ` jsm28 at gcc dot gnu.org
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