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* [Bug c++/52955] New: Missing warning on wrong sizeof usage
@ 2012-04-12 21:57 xinliangli at gmail dot com
2012-04-13 0:09 ` [Bug c++/52955] " pinskia at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: xinliangli at gmail dot com @ 2012-04-12 21:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52955
Bug #: 52955
Summary: Missing warning on wrong sizeof usage
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: xinliangli@gmail.com
Example:
#include <memory.h>
struct S { int a, b, c; float vec[16]; };
void test(S *s) {
// ...
memset(s, 0, sizeof(s));
// ...
}
/*
memset.cpp:5:23: warning: argument to 'sizeof' in 'memset' call is the
same expression as the destination; did you mean to dereference it? [-
Wsizeof-pointer-memaccess]
memset(s, 0, sizeof(s));
~ ^
1 warning generated.
*/
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/52955] Missing warning on wrong sizeof usage 2012-04-12 21:57 [Bug c++/52955] New: Missing warning on wrong sizeof usage xinliangli at gmail dot com @ 2012-04-13 0:09 ` pinskia at gcc dot gnu.org 2012-10-11 22:33 ` paolo.carlini at oracle dot com 2012-10-11 22:45 ` jakub at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2012-04-13 0:09 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52955 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-04-13 00:09:12 UTC --- http://gcc.gnu.org/ml/gcc-patches/2006-12/msg00158.html ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/52955] Missing warning on wrong sizeof usage 2012-04-12 21:57 [Bug c++/52955] New: Missing warning on wrong sizeof usage xinliangli at gmail dot com 2012-04-13 0:09 ` [Bug c++/52955] " pinskia at gcc dot gnu.org @ 2012-10-11 22:33 ` paolo.carlini at oracle dot com 2012-10-11 22:45 ` jakub at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: paolo.carlini at oracle dot com @ 2012-10-11 22:33 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52955 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2012-10-11 AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org |gnu.org | Ever Confirmed|0 |1 --- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-10-11 22:32:52 UTC --- This is Jakub's. Close to be done! ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/52955] Missing warning on wrong sizeof usage 2012-04-12 21:57 [Bug c++/52955] New: Missing warning on wrong sizeof usage xinliangli at gmail dot com 2012-04-13 0:09 ` [Bug c++/52955] " pinskia at gcc dot gnu.org 2012-10-11 22:33 ` paolo.carlini at oracle dot com @ 2012-10-11 22:45 ` jakub at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: jakub at gcc dot gnu.org @ 2012-10-11 22:45 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52955 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-10-11 22:44:59 UTC --- http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190467 http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=192141 Another patch is still pending, but about memset (s, 0, sizeof(s)) above we already warn. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-10-11 22:45 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-04-12 21:57 [Bug c++/52955] New: Missing warning on wrong sizeof usage xinliangli at gmail dot com 2012-04-13 0:09 ` [Bug c++/52955] " pinskia at gcc dot gnu.org 2012-10-11 22:33 ` paolo.carlini at oracle dot com 2012-10-11 22:45 ` jakub at gcc dot gnu.org
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