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From: "chengniansun at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/64423] New: Incorrect column number of -Wchar-subscripts
Date: Sun, 28 Dec 2014 06:10:00 -0000 [thread overview]
Message-ID: <bug-64423-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64423
Bug ID: 64423
Summary: Incorrect column number of -Wchar-subscripts
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: chengniansun at gmail dot com
The column number of -Wchar-subscripts is not precise. It always starts at the
beginning of the statement.
$: cat t.c
int a[100];
int f(char c) {
return a[c] + a[c] + a[c];
}
$:
$: gcc-trunk -Wchar-subscripts -c t.c
t.c: In function ‘f’:
t.c:4:3: warning: array subscript has type ‘char’ [-Wchar-subscripts]
return a[c] + a[c] + a[c];
^
t.c:4:3: warning: array subscript has type ‘char’ [-Wchar-subscripts]
t.c:4:3: warning: array subscript has type ‘char’ [-Wchar-subscripts]
$:
$: clang-trunk -Wchar-subscripts -c t.c
t.c:4:11: warning: array subscript is of type 'char' [-Wchar-subscripts]
return a[c] + a[c] + a[c];
^~
t.c:4:18: warning: array subscript is of type 'char' [-Wchar-subscripts]
return a[c] + a[c] + a[c];
^~
t.c:4:25: warning: array subscript is of type 'char' [-Wchar-subscripts]
return a[c] + a[c] + a[c];
^~
3 warnings generated.
>From gcc-bugs-return-471794-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Sun Dec 28 06:19:23 2014
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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/64423] Incorrect column number of -Wchar-subscripts
Date: Sun, 28 Dec 2014 06:19:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idd423
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-12-28
Ever confirmed|0 |1
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
That is because warn_array_subscript_with_type_char does not take a location
and does not use warningat but rather just warning.
Confirmed.
next reply other threads:[~2014-12-28 6:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-28 6:10 chengniansun at gmail dot com [this message]
2014-12-29 20:52 ` [Bug c/64423] " mpolacek at gcc dot gnu.org
2015-01-05 12:04 ` mpolacek at gcc dot gnu.org
2015-01-05 12:05 ` mpolacek at gcc dot gnu.org
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