Bug#289264: marked as done (libc6: scanf() wrong results)
Your message dated Thu, 13 Jan 2005 11:11:04 +0900
with message-id <818y6yrscn.wl@omega.webmasters.gr.jp>
and subject line Bug#289264: libc6: scanf() wrong results **never mind**
has caused the attached Bug report to be marked as done.
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Bug report if necessary, and/or fix the problem forthwith.
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To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: libc6: scanf() wrong results
From: Paul Vojta <vojta@Math.Berkeley.EDU>
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--===============0504867712==
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Package: libc6
Version: 2.3.2.ds1-20
Severity: normal
scanf() sometimes produces erroneous results (it reads part of the next
line when it shouldn't). See the attached program (which runs correctly
on Solaris 9).
-- System Information:
Debian Release: 3.1
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.4.27
Locale: LANG=C, LC_CTYPE=en_US.ISO-8859-1 (charmap=ISO-8859-1)
Versions of packages libc6 depends on:
ii libdb1-compat 2.1.3-7 The Berkeley database routines [gl
-- no debconf information
--===============0504867712==
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Content-Disposition: attachment; filename="scanftest.c"
#include <stdio.h>
/*
* This program exhibits a bug with scanf() processing.
*
* Compile with:
* gcc -Wall -o scanftest scanftest.c
*
* Run with:
* ./scanftest < data
* or
* ./scanftest < data | diff data -
*
* The output should coincide with the input, but it doesn't.
*/
int
main()
{
int n;
char name[3];
int hw[17];
int i;
n = 0;
for (;;) {
double h[17];
double junk;
i = scanf("%c%c%c "
"%lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf "
"%lf %lf %lf %lf\n",
&name[0], &name[1], &name[2],
&h[0], &h[1], &h[2], &h[3], &h[4], &h[5], &h[6], &h[7], &h[8],
&h[9], &h[10], &h[11], &h[12], &h[13], &h[14], &h[15], &h[16],
&junk);
if (i == EOF) break;
if (i != 20) {
fprintf(stderr, "At line %d, got %d values instead of 20.\n",
n + 1, i);
return 1;
}
for (i = 0; i < 17; ++i)
hw[i] = h[i];
printf("%c%c%c", name[0], name[1], name[2]);
for (i = 0; i < 16; ++i)
printf(" %2d", hw[i]);
printf("%2d\n", hw[16]);
++n;
}
return 0;
}
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Received: (at 289264-done) by bugs.debian.org; 13 Jan 2005 02:11:05 +0000
>From gotom@debian.or.jp Wed Jan 12 18:11:05 2005
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Date: Thu, 13 Jan 2005 11:11:04 +0900
Message-ID: <818y6yrscn.wl@omega.webmasters.gr.jp>
From: GOTO Masanori <gotom@debian.or.jp>
To: Paul Vojta <vojta@Math.Berkeley.EDU>, 289264-done@bugs.debian.org
Subject: Re: Bug#289264: libc6: scanf() wrong results **never mind**
In-Reply-To: <[🔎] 200501110548.j0B5mBSK019712@blue3.math.berkeley.edu>
References: <[🔎] 200501110548.j0B5mBSK019712@blue3.math.berkeley.edu>
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At Mon, 10 Jan 2005 21:48:12 -0800 (PST),
Paul Vojta wrote:
> Upon further looking at things, I figured out that this isn't a bug
> after all. (Or, more precisely, it's a bug in my understanding of white
> space.)
>
> Feel free to close this bug.
Thanks for your catching up of this bug. I close this bug.
Regards,
-- gotom
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