* [Bug manual/14695] Wrong printf("%3s"...) Example --- manual subsection "12.12.6 Other Output Conversions"
2012-10-10 9:39 [Bug manual/14695] New: Wrong printf("%3s"...) Example --- manual subsection "12.12.6 Other Output Conversions" lascania at gmail dot com
@ 2012-10-10 9:43 ` lascania at gmail dot com
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From: lascania at gmail dot com @ 2012-10-10 9:43 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14695
R N Alx <lascania at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #6678|picture of the manual page |.GIF picture of the manual
description|with wrong printf() example |page with wrong printf()
| |example
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From: lascania at gmail dot com @ 2012-10-10 9:46 UTC (permalink / raw)
To: glibc-bugs
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R N Alx <lascania at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
URL| |http://www.gnu.org/software
| |/libc/manual/html_node/Othe
| |r-Output-Conversions.html#O
| |ther-Output-Conversions
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From: schwab@linux-m68k.org @ 2012-10-10 10:01 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14695
Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID
--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> 2012-10-10 10:00:45 UTC ---
printf ("%.3s%-.6s", "no", "where") does not produce " nowhere ".
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From: lascania at gmail dot com @ 2012-10-10 10:28 UTC (permalink / raw)
To: glibc-bugs
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R N Alx <lascania at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |
--- Comment #2 from R N Alx <lascania at gmail dot com> 2012-10-10 10:28:12 UTC ---
Mr Schwab,
This example code, is not my own, not-my-own example !
printf ("%3s%-6s", "no", "where")
this example is writen in the manual, it is writen wrong inside the online
manual.
I filled this bug because I want the online manual subsection "12.12.6 Other
Output Conversions" to be changed because of two reasons:
1. reason one
there are missing two dots, %3.s and %-.6s
2. reason two
printf ("%.3s%-.6s", "no", "where") does YES YES YES produce " nowhere ".
but not because of the output conversion arguments .3 and -.6, but because
these two strings are only two characters and five characters long, thus the
output conversion arguments .3 and -.6 have no influence
but if the online manual is changed to:
printf ("%.3s%-.6s", "noOoO", "whereEeEeEeE")
the result will be " noOwhereE "
which is what the online manual is trying to explain how printf() is using
output conversion arguments to cut strings
CHECK THE .GIF IMAGE
http://sourceware.org/bugzilla/attachment.cgi?id=6678
CHECK THE ONLINE MANUAL
http://www.gnu.org/software/libc/manual/html_node/Other-Output-Conversions.html#Other-Output-Conversions
Thanx
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From: schwab@linux-m68k.org @ 2012-10-10 10:42 UTC (permalink / raw)
To: glibc-bugs
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Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |INVALID
--- Comment #3 from Andreas Schwab <schwab@linux-m68k.org> 2012-10-10 10:42:03 UTC ---
printf ("%.3s%-.6s", "no", "where") does not produce " nowhere ", neither does
printf ("%.3s%-.6s", "noOoO", "whereEeEeEeE") produce " noOwhereE ". You need
a field width bigger than the precision to get any padding.
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From: lascania at gmail dot com @ 2012-10-10 10:58 UTC (permalink / raw)
To: glibc-bugs
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--- Comment #4 from R N Alx <lascania at gmail dot com> 2012-10-10 10:57:31 UTC ---
Created attachment 6679
--> http://sourceware.org/bugzilla/attachment.cgi?id=6679
.GIF picture with correct output conversion arguments printf() example
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From: lascania at gmail dot com @ 2012-10-10 11:00 UTC (permalink / raw)
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R N Alx <lascania at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |
--- Comment #5 from R N Alx <lascania at gmail dot com> 2012-10-10 10:59:57 UTC ---
Sir,
I'm sorry but you are mistaken.
Please see the image, to see confirmation.
http://sourceware.org/bugzilla/attachment.cgi?id=6679
Please modify the online manual to contain valid information !!!
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From: aj at suse dot de @ 2012-10-10 11:06 UTC (permalink / raw)
To: glibc-bugs
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Andreas Jaeger <aj at suse dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |aj at suse dot de
--- Comment #6 from Andreas Jaeger <aj at suse dot de> 2012-10-10 11:06:32 UTC ---
Just a question: Shouldn't the manual say "field width" instead of precision?
This is an example of a field of with 3:
printf ("%3s",...)
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From: lascania at gmail dot com @ 2012-10-10 11:16 UTC (permalink / raw)
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--- Comment #7 from R N Alx <lascania at gmail dot com> 2012-10-10 11:15:39 UTC ---
(In reply to comment #6)
> Just a question: Shouldn't the manual say "field width" instead of precision?
>
> This is an example of a field of with 3:
> printf ("%3s",...)
Your example is wrong, because you must put a dot before three, .3, if you want
to printf() only the first three3 characters of a string !
The manual should say something like, "to output less than the width of a
string use the precision option .n to output only first n characters from a
string".
Regarding numbers, the manual should continue use precision.
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From: schwab@linux-m68k.org @ 2012-10-10 11:59 UTC (permalink / raw)
To: glibc-bugs
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Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |INVALID
--- Comment #8 from Andreas Schwab <schwab@linux-m68k.org> 2012-10-10 11:58:57 UTC ---
This example has nothing to do with field width or precision, it is about
alignment (which is useless without a field width).
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From: lascania at gmail dot com @ 2012-10-10 12:16 UTC (permalink / raw)
To: glibc-bugs
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R N Alx <lascania at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |
--- Comment #9 from R N Alx <lascania at gmail dot com> 2012-10-10 12:15:26 UTC ---
Mr Schwab
You said,
printf ("%.3s%-.6s", "no", "where") does not produce " nowhere "
You said,
printf ("%.3s%-.6s", "noOoO", "whereEeEeEeE") does not produce " noOwhereE "
THEY BOTH PRODUCE, " nowhere " RESPECTIVELY " noOwhereE "
Are you able too see pictures on your computer, or are you still using an old
text-screen terminal ?
My bug is about
R N Alx 2012-10-10 10:28:12 UTC
http://sourceware.org/bugzilla/show_bug.cgi?id=14695#c2
If you do not understand, please let other people have a look at the images,
and decide on this subject !
Do no longer stamp my bug as RESOLVED INVALID !
Thank You Sir !
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From: schwab@linux-m68k.org @ 2012-10-10 12:33 UTC (permalink / raw)
To: glibc-bugs
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Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |INVALID
--- Comment #10 from Andreas Schwab <schwab@linux-m68k.org> 2012-10-10 12:33:27 UTC ---
printf ("%.3s%-.6s", "no", "where") produces "nowhere" and printf ("%.3s%-.6s",
"noOoO", "whereEeEeEeE") produces "noOwhereE".
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From: lascania at gmail dot com @ 2012-10-11 11:31 UTC (permalink / raw)
To: glibc-bugs
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R N Alx <lascania at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |
--- Comment #11 from R N Alx <lascania at gmail dot com> 2012-10-11 11:31:08 UTC ---
COMPARE
http://sourceware.org/bugzilla/show_bug.cgi?id=14695#c3
http://sourceware.org/bugzilla/show_bug.cgi?id=14695#c10
dude Schwab, just stay away ! keep distance, let somebody else look at the
issue, not you !
take a walk in nature, clean your mind !
STAY AWAY !!!!!!!!!
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From: schwab@linux-m68k.org @ 2012-10-11 11:53 UTC (permalink / raw)
To: glibc-bugs
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Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |INVALID
--- Comment #12 from Andreas Schwab <schwab@linux-m68k.org> 2012-10-11 11:53:17 UTC ---
Stop reopening. Nothing what you wrote is true.
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From: aj at suse dot de @ 2012-10-11 13:18 UTC (permalink / raw)
To: glibc-bugs
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--- Comment #13 from Andreas Jaeger <aj at suse dot de> 2012-10-11 13:18:07 UTC ---
R NH Alx, we resolve conflicts in a friendly manner. Stop insulting Andreas
Schwab.
It's fine to disagree on a technical level - but then you have to accept that
Andreas is an expert in this area and disagrees with you.
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From: lascania at gmail dot com @ 2012-10-11 14:57 UTC (permalink / raw)
To: glibc-bugs
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--- Comment #14 from R N Alx <lascania at gmail dot com> 2012-10-11 14:56:46 UTC ---
I do not care what flavour of expert is Andreas Schwab.
My physics teacher always tells me that the laws of physics are based only on
experiments and nobody with great authority can impose a law only because he
has greater authority !
In comment #3 and in comment #10, Andreas Schwab, contradicts himself, this
makes me believe that he has limited knowledge on the subject.
Question:
Can you folks view .GIF images on your computer screens ?
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R N Alx <lascania at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |
--- Comment #15 from R N Alx <lascania at gmail dot com> 2012-10-11 15:03:44 UTC ---
I want to output only 5characters from a 10character string
char str[] = "0123456789"
Which printf() call will do that job ?
I. printf("%5s", str)
or II. printf("%.5s", str)
Now lets see how big experts you are.
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From: schwab@linux-m68k.org @ 2012-10-11 16:15 UTC (permalink / raw)
To: glibc-bugs
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Andreas Schwab <schwab@linux-m68k.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |INVALID
--- Comment #16 from Andreas Schwab <schwab@linux-m68k.org> 2012-10-11 16:14:42 UTC ---
This is not the point of the example. Read comment 8 again.
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2012-10-10 9:39 [Bug manual/14695] New: Wrong printf("%3s"...) Example --- manual subsection "12.12.6 Other Output Conversions" lascania at gmail dot com
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2012-10-11 16:15 ` schwab@linux-m68k.org
@ 2012-10-11 16:51 ` ldv at altlinux dot org
2012-10-11 17:02 ` schwab@linux-m68k.org
` (3 subsequent siblings)
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From: ldv at altlinux dot org @ 2012-10-11 16:51 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14695
Dmitry V. Levin <ldv at altlinux dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ldv at altlinux dot org
--- Comment #17 from Dmitry V. Levin <ldv at altlinux dot org> 2012-10-11 16:51:13 UTC ---
(In reply to comment #8)
> This example has nothing to do with field width or precision, it is about
> alignment (which is useless without a field width).
The reporter seems to be confused by the fact that this example demonstrates
alignment while the text right before it talks about precision and there is no
example on precision.
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^ permalink raw reply [flat|nested] 24+ messages in thread* [Bug manual/14695] Wrong printf("%3s"...) Example --- manual subsection "12.12.6 Other Output Conversions"
2012-10-10 9:39 [Bug manual/14695] New: Wrong printf("%3s"...) Example --- manual subsection "12.12.6 Other Output Conversions" lascania at gmail dot com
` (18 preceding siblings ...)
2012-10-11 16:51 ` ldv at altlinux dot org
@ 2012-10-11 17:02 ` schwab@linux-m68k.org
2012-10-12 12:16 ` lascania at gmail dot com
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From: schwab@linux-m68k.org @ 2012-10-11 17:02 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14695
--- Comment #18 from Andreas Schwab <schwab@linux-m68k.org> 2012-10-11 17:01:44 UTC ---
The last sentence before the example explicitly talks about the - flag.
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^ permalink raw reply [flat|nested] 24+ messages in thread* [Bug manual/14695] Wrong printf("%3s"...) Example --- manual subsection "12.12.6 Other Output Conversions"
2012-10-10 9:39 [Bug manual/14695] New: Wrong printf("%3s"...) Example --- manual subsection "12.12.6 Other Output Conversions" lascania at gmail dot com
` (19 preceding siblings ...)
2012-10-11 17:02 ` schwab@linux-m68k.org
@ 2012-10-12 12:16 ` lascania at gmail dot com
2012-10-12 16:22 ` [Bug manual/14695] no example on printf precision " ldv at altlinux dot org
2014-06-17 4:04 ` fweimer at redhat dot com
22 siblings, 0 replies; 24+ messages in thread
From: lascania at gmail dot com @ 2012-10-12 12:16 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14695
R N Alx <lascania at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |
--- Comment #19 from R N Alx <lascania at gmail dot com> 2012-10-12 12:16:05 UTC ---
Alright !
Then take 2 minutes of your time and include an example on precision !
printf("%.5s", "0123456789")
produces:
‘01234’
Change the example about aligment from:
printf ("%3s%-6s", "no", "where");
change it to:
printf ("%10s(always)", "ON");
printf("\n");
printf ("%-10s(never)", "OFF");
produces:
‘ ON(always)’
newline
‘OFF (never)’
And now you may stamp the bug as solved.
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^ permalink raw reply [flat|nested] 24+ messages in thread* [Bug manual/14695] no example on printf precision --- manual subsection "12.12.6 Other Output Conversions"
2012-10-10 9:39 [Bug manual/14695] New: Wrong printf("%3s"...) Example --- manual subsection "12.12.6 Other Output Conversions" lascania at gmail dot com
` (20 preceding siblings ...)
2012-10-12 12:16 ` lascania at gmail dot com
@ 2012-10-12 16:22 ` ldv at altlinux dot org
2014-06-17 4:04 ` fweimer at redhat dot com
22 siblings, 0 replies; 24+ messages in thread
From: ldv at altlinux dot org @ 2012-10-12 16:22 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=14695
Dmitry V. Levin <ldv at altlinux dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |NEW
Summary|Wrong printf("%3s"...) |no example on printf
|Example --- manual |precision --- manual
|subsection "12.12.6 Other |subsection "12.12.6 Other
|Output Conversions" |Output Conversions"
Severity|minor |enhancement
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^ permalink raw reply [flat|nested] 24+ messages in thread* [Bug manual/14695] no example on printf precision --- manual subsection "12.12.6 Other Output Conversions"
2012-10-10 9:39 [Bug manual/14695] New: Wrong printf("%3s"...) Example --- manual subsection "12.12.6 Other Output Conversions" lascania at gmail dot com
` (21 preceding siblings ...)
2012-10-12 16:22 ` [Bug manual/14695] no example on printf precision " ldv at altlinux dot org
@ 2014-06-17 4:04 ` fweimer at redhat dot com
22 siblings, 0 replies; 24+ messages in thread
From: fweimer at redhat dot com @ 2014-06-17 4:04 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=14695
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Flags| |security-
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