[Mingw-notify] [ mingw-Bugs-939155 ] -Wformat doesn't know %uI64 is for 64-bit, not %ull

[SourceForge.net <no...@so...>]

Bugs item #939155, was opened at 2004-04-21 21:01
Message generated for change (Comment added) made by dannysmith
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=102435&aid=939155&group_id=2435

Category: gcc
Group: None
Status: Open
Resolution: Later
Priority: 5
Submitted By: Wim Heirman (wheirman)
Assigned to: Danny Smith (dannysmith)
Summary: -Wformat doesn't know %uI64 is for 64-bit, not %ull

Initial Comment:
In msvcrt, the length modifier in a printf()-format for 
long long datatypes is "I64", not "ll" like in glibc. However 
gcc doens't know this, and complains that the format 
string and arguments of a printf-function don't match.

----------------------------------------------------------------------

>Comment By: Danny Smith (dannysmith)
Date: 2005-01-02 21:01

Message:
Logged In: YES 
user_id=11494

> Strangely mingw32-gcc version 3.4.2 (built as a
> cross-compiler) still seems to generate these warnings for 
me:

Yes the sticky plaster I applied to 3.4.2 sources only affects 
mingw-hosted compiler.  It will be fixed properly one day.  I'll 
apply the patch Mark Mitchell suggested to the 3.4.4. mingw 
release.

Danny

----------------------------------------------------------------------

Comment By: J. Ali Harlow (j_ali)
Date: 2005-01-02 20:20

Message:
Logged In: YES 
user_id=64456

Strangely mingw32-gcc version 3.4.2 (built as a
cross-compiler) still seems to generate these warnings for me:

percy.juiblex.co.uk1.221% mingw32-gcc --version
mingw32-gcc (GCC) 3.4.2 (mingw-special)
Copyright (C) 2004 Free Software Foundation, Inc.
This is free software; see the source for copying
conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

percy.juiblex.co.uk1.222% more test.c
#include <stdlib.h>
#include <stdio.h>

int main()
{
        __int64 i=3;
        printf("%I64u\n",i);
        return 0;
}
percy.juiblex.co.uk1.223% mingw32-gcc -Wformat test.c
test.c: In function `main':
test.c:7: warning: unsigned int format, different type arg
(arg 2)


----------------------------------------------------------------------

Comment By: Danny Smith (dannysmith)
Date: 2004-08-02 21:59

Message:
Logged In: YES 
user_id=11494

This is fixed in mingw relase of gcc-3.4.1, but not yet in 
official FSF sources.  It is low priority for me, so if someone 
wants to follow up with a submission to GCC, feel free.  The 
patch I put into mingw local release probably has way to 
many ifdef __MINGW32__'s to be palatable to GCC, so it will 
need some work.

Danny

----------------------------------------------------------------------

Comment By: Ed Schaller (schallee)
Date: 2004-08-01 07:08

Message:
Logged In: YES 
user_id=2001

Ok, now I feel like a moron. Sorry. Yes I can confirm that
3.4.1 does fix the issue. I feel more like a moron in that I
downloaded and installed it  to check some other problems
before submitting a patch but didn't check this one.

----------------------------------------------------------------------

Comment By: Danny Smith (dannysmith)
Date: 2004-07-31 10:40

Message:
Logged In: YES 
user_id=11494

Have you tried with mingw release of gcc-3.4.1?
Danny

----------------------------------------------------------------------

Comment By: Ed Schaller (schallee)
Date: 2004-07-31 07:48

Message:
Logged In: YES 
user_id=2001

Likewise for %I64u. Should this one be reported to gcc folks
instead of mingw?

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=102435&aid=939155&group_id=2435