https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
Marek Polacek changed:
What|Removed |Added
Status|REOPENED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #19 from Marek Polacek ---
Author: mpolacek
Date: Fri Feb 27 14:11:53 2015
New Revision: 221061
URL: https://gcc.gnu.org/viewcvs?rev=221061&root=gcc&view=rev
Log:
PR c/65040
* doc/invoke.texi: Update to reflect that -Wformat=
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #18 from Richard Biener ---
And it was just mentioned that the diagnostic should print
[-Wformat-signedness]
not
[-Wformat=]
(or both)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #17 from Jakub Jelinek ---
IMHO the warning is completely useless, but perhaps some people disagree.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #16 from Marek Polacek ---
Ok, I can fix the integer constant case as well.
(In reply to Richard Biener from comment #15)
> I'd also say that warnings for formats that do not have a signed form are
> useless,
> thus for %o, %x and %X
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #15 from Richard Biener ---
I'd also say that warnings for formats that do not have a signed form are
useless,
thus for %o, %x and %X. But I guess you beg to differ.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
Richard Biener changed:
What|Removed |Added
Status|RESOLVED|REOPENED
Resolution|FIXED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #13 from Marek Polacek ---
Note that this patch had a followup: PR65066.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #12 from Jiri Slaby ---
(In reply to Marek Polacek from comment #10)
> That's because on your architecture char is signed by default. Try adding
> "unsigned" or using -funsigned-char and the warning should be gone.
Ok, I wanted to m
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #11 from Jakub Jelinek ---
-funsigned-char is an option that shouldn't be used without serious
consideration.
That said, I think in that case the warning is intentional, you are indeed
passing a signed value to unsigned format. If yo
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #10 from Marek Polacek ---
That's because on your architecture char is signed by default. Try adding
"unsigned" or using -funsigned-char and the warning should be gone.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #9 from Jiri Slaby ---
What about this?
#include
void x(char *ch)
{
printf("%x\n", ch[10]);
}
It still produces the warning. (I cannot reopen as I am not a reporter.)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
Marek Polacek changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #7 from Marek Polacek ---
Author: mpolacek
Date: Fri Feb 13 07:56:14 2015
New Revision: 220677
URL: https://gcc.gnu.org/viewcvs?rev=220677&root=gcc&view=rev
Log:
PR c/65040
* c-format.c (check_format_types): Don't warn about
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
Frank Ch. Eigler changed:
What|Removed |Added
CC||fche at redhat dot com
--- Comment #6
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
Mark Wielaard changed:
What|Removed |Added
CC||mark at gcc dot gnu.org
--- Comment #5 f
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
--- Comment #4 from Jakub Jelinek ---
(In reply to Marek Polacek from comment #2)
> Taking. I think check_format_types needs a small tweak to look thru
> NOP_EXPRs.
Well, more like do some lame VR computation and not warn if the signedness
does
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment #3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
Marek Polacek changed:
What|Removed |Added
Status|NEW |ASSIGNED
Assignee|unassigned a
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
Marek Polacek changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65040
Richard Biener changed:
What|Removed |Added
Target Milestone|--- |5.0
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