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* [Bug c/27120] New: Should warn about uninitialized use of variable array element
@ 2006-04-11 15:56 rguenth at gcc dot gnu dot org
2006-04-11 17:30 ` [Bug c/27120] " pinskia at gcc dot gnu dot org
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2006-04-11 15:56 UTC (permalink / raw)
To: gcc-bugs
int foo(int i)
{
char buffer[10];
return buffer[i];
}
does not warn about the use of uninitialized array buffer. While
int foo(int i)
{
char buffer[10];
return buffer[2];
}
does. Likewise for C++.
--
Summary: Should warn about uninitialized use of variable array
element
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: enhancement
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rguenth at gcc dot gnu dot org
OtherBugsDependingO 24639
nThis:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27120
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug c/27120] Should warn about uninitialized use of variable array element 2006-04-11 15:56 [Bug c/27120] New: Should warn about uninitialized use of variable array element rguenth at gcc dot gnu dot org @ 2006-04-11 17:30 ` pinskia at gcc dot gnu dot org 2006-04-30 7:47 ` pinskia at gcc dot gnu dot org 2009-03-28 13:40 ` fxcoudert at gcc dot gnu dot org 2 siblings, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu dot org @ 2006-04-11 17:30 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from pinskia at gcc dot gnu dot org 2006-04-11 17:30 ------- Related to PR 10138. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- BugsThisDependsOn| |10138 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27120 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/27120] Should warn about uninitialized use of variable array element 2006-04-11 15:56 [Bug c/27120] New: Should warn about uninitialized use of variable array element rguenth at gcc dot gnu dot org 2006-04-11 17:30 ` [Bug c/27120] " pinskia at gcc dot gnu dot org @ 2006-04-30 7:47 ` pinskia at gcc dot gnu dot org 2009-03-28 13:40 ` fxcoudert at gcc dot gnu dot org 2 siblings, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu dot org @ 2006-04-30 7:47 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from pinskia at gcc dot gnu dot org 2006-04-30 07:47 ------- (In reply to comment #0) [first testcase using nonconstant index] > > does not warn about the use of uninitialized array buffer. While > [second testcase using constant index] > > does. Likewise for C++. In the second example, SRA works on the array, scalarizes the array which allows for the current initialization warning to happen. Now maybe we should do the uninitialization warning in the front-end. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2006-04-30 07:47:20 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27120 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/27120] Should warn about uninitialized use of variable array element 2006-04-11 15:56 [Bug c/27120] New: Should warn about uninitialized use of variable array element rguenth at gcc dot gnu dot org 2006-04-11 17:30 ` [Bug c/27120] " pinskia at gcc dot gnu dot org 2006-04-30 7:47 ` pinskia at gcc dot gnu dot org @ 2009-03-28 13:40 ` fxcoudert at gcc dot gnu dot org 2 siblings, 0 replies; 5+ messages in thread From: fxcoudert at gcc dot gnu dot org @ 2009-03-28 13:40 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from fxcoudert at gcc dot gnu dot org 2009-03-28 13:39 ------- *** Bug 35234 has been marked as a duplicate of this bug. *** -- fxcoudert at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dominiq at lps dot ens dot | |fr http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27120 ^ permalink raw reply [flat|nested] 5+ messages in thread
[parent not found: <bug-27120-4@http.gcc.gnu.org/bugzilla/>]
* [Bug c/27120] Should warn about uninitialized use of variable array element [not found] <bug-27120-4@http.gcc.gnu.org/bugzilla/> @ 2015-08-12 11:15 ` mpolacek at gcc dot gnu.org 0 siblings, 0 replies; 5+ messages in thread From: mpolacek at gcc dot gnu.org @ 2015-08-12 11:15 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=27120 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |mpolacek at gcc dot gnu.org Resolution|--- |FIXED --- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> --- We now warn even for the first testcase in Description (both C and C++). ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2015-08-12 11:15 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2006-04-11 15:56 [Bug c/27120] New: Should warn about uninitialized use of variable array element rguenth at gcc dot gnu dot org
2006-04-11 17:30 ` [Bug c/27120] " pinskia at gcc dot gnu dot org
2006-04-30 7:47 ` pinskia at gcc dot gnu dot org
2009-03-28 13:40 ` fxcoudert at gcc dot gnu dot org
[not found] <bug-27120-4@http.gcc.gnu.org/bugzilla/>
2015-08-12 11:15 ` mpolacek at gcc dot gnu.org
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