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1.3.1: gcc-2.95.3-4 bug with scanf() for floating-point numbers on Win2k
- To: cygwin at cygwin dot com
- Subject: 1.3.1: gcc-2.95.3-4 bug with scanf() for floating-point numbers on Win2k
- From: Ben Stewart <ben dot stewart at whsc dot vic dot edu dot au>
- Date: Sun, 06 May 2001 22:38:11 +1000
I'm using Cygwin 1.3.1, with all packages "stable" as at April 27th
2001, including gcc 2.95.3-4.
Using the attached code sample and data, when compiled, results in
incorrect data. I have tried this code fragment on Linux gcc 2.95
(debian), and works fine. My lecturers have also tried it under SunOS,
working fine.
---- <output> ----
[administrator@STARBUGGER] //f/myc$ ./broken-gcc-code <
broken-gcc-code-data.txt
A 130.0 80.0 40.0 100.0
A -120.0 50.0 100.0 NaN
A -70.0 NaN NaN NaN
B -40.0 NaN NaN NaN
B -30.0 NaN NaN NaN
C -80.0 NaN NaN NaN
[administrator@STARBUGGER] //f/myc$
---- </output> ----
If you have any suggestions, please email me.
Thanks in advance
/. .\
--------ooo----O----ooo--------
Ben Stewart
Intranet Administrator
Wheelers Hill Secondary College
Mobile 0402 089 240
Phone +61 3 9561 5811 ext 247
Fax +61 3 9561 8227
ben.stewart@whsc.vic.edu.au
Cygnus Win95/NT Configuration Diagnostics
Current System Time: Sun May 6 22:27:47 2001
WinNT Ver 5.0 build 2195 Service Pack 1
Path: /usr/local/bin
/usr/bin
/bin
/usr/bin
/cygdrive/c/PROGRA~1/Borland/Delphi5/Projects/Bpl
/cygdrive/c/PROGRA~1/Borland/Delphi5/Bin
/cygdrive/c/WINNT/system32
/cygdrive/c/WINNT
/cygdrive/c/WINNT/System32/Wbem
/cygdrive/c/PROGRA~1/ULTRAE~1
/cygdrive/c/WINDOWS
/cygdrive/c/WINDOWS/COMMAND
/cygdrive/c/PROGRA~1/BORLAND/CBUILD~1/BIN
/cygdrive/c/PROGRA~1/BORLAND/DELPHI5/BIN
/cygdrive/c/PROGRA~1/BORLAND/DELPHI5/PROJECTS/BPL
.
SysDir: C:\WINNT\System32
WinDir: C:\WINNT
PWD = `/ftp/software/OS/cygwin/latest'
USER = `administrator'
MAKE_MODE = `unix'
HOME = `/cygdrive/c/Documents and Settings/Administrator'
NUMBER_OF_PROCESSORS = `1'
PROMPT = `$P$G'
LOGONSERVER = `\\STARBUGGER'
OS2LIBPATH = `C:\WINNT\system32\os2\dll;'
COMSPEC = `C:\WINNT\system32\cmd.exe'
!C: = `C:\'
SYSTEMDRIVE = `C:'
HOSTNAME = `STARBUGGER'
PROCESSOR_REVISION = `0605'
PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
COMPUTERNAME = `STARBUGGER'
WINDIR = `C:\WINNT'
USERPROFILE = `C:\Documents and Settings\Administrator'
PS1 = `[administrator@STARBUGGER] \w$ '
BLASTER = `A220 I7 D1 T2'
PROGRAMFILES = `C:\Program Files'
MACHTYPE = `i686-pc-cygwin'
PROCESSOR_IDENTIFIER = `x86 Family 6 Model 6 Stepping 5, GenuineIntel'
OS = `Windows_NT'
OLDPWD = `/ftp/software/OS/cygwin'
PROCESSOR_ARCHITECTURE = `x86'
TEMP = `/cygdrive/c/DOCUME~1/ADMINI~2/LOCALS~1/Temp'
PROCESSOR_LEVEL = `6'
SNDSCAPE = `C:\WINDOWS'
SYSTEMROOT = `C:\WINNT'
HOMEDRIVE = `C:'
ALLUSERSPROFILE = `C:\Documents and Settings\All Users'
SHLVL = `1'
APPDATA = `C:\Documents and Settings\Administrator\Application Data'
COMMONPROGRAMFILES = `C:\Program Files\Common Files'
HOMEPATH = `\'
USERDOMAIN = `STARBUGGER'
USERNAME = `administrator'
SHELL = `/bin/sh'
HOSTTYPE = `i686'
OSTYPE = `cygwin'
TERM = `cygwin'
_ = `/usr/bin/cygcheck.exe'
TZ = `AUSEST-10AUSEDT-11,M10.5.0/2,M3.5.0/2'
HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
(default) = `/cygdrive'
cygdrive flags = 0x00000020
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2\/
(default) = `G:/cygwin'
flags = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
(default) = `G:/cygwin/bin'
flags = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
(default) = `G:/cygwin/lib'
flags = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\00
(default) = `G:'
unix = `/g'
fbinary = 0x00000000
fsilent = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\01
(default) = `F:'
unix = `/f'
fbinary = 0x00000000
fsilent = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\02
(default) = `C:'
unix = `/'
fbinary = 0x00000000
fsilent = 0x00000000
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\Programs\Cygnus Solutions
(default) = (unsupported type)
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\00
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\01
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\02
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\03
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\04
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\05
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\06
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\07
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\08
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\09
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0A
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0B
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0C
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0D
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0E
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0F
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\10
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\11
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\12
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\13
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\14
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\15
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\16
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\17
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\18
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\19
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1A
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1B
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1C
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1D
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32
a: fd N/A N/A
c: hd NTFS 3610Mb 69% CP CS UN PA FC HP_PAVILION
f: hd NTFS 4503Mb 74% CP CS UN PA FC Ben's Crap
g: hd NTFS 39475Mb 88% CP CS UN PA FC FTPd
m: cd N/A N/A
s: cd N/A N/A
t: cd N/A N/A
G:\cygwin\bin /usr/bin user textmode
G:\cygwin\lib /usr/lib user textmode
G:\cygwin / user textmode
c: /cygdrive/c user textmode,noumount
f: /cygdrive/f user textmode,noumount
g: /cygdrive/g user textmode,noumount
Found: G:\cygwin\bin\bash.exe
Found: G:\cygwin\bin\cat.exe
Found: G:\cygwin\bin\cpp.exe
Found: G:\cygwin\bin\find.exe
Found: G:\cygwin\bin\gcc.exe
Found: G:\cygwin\bin\gdb.exe
Found: G:\cygwin\bin\ld.exe
Found: G:\cygwin\bin\ls.exe
Found: G:\cygwin\bin\make.exe
Found: c:\PROGRA~1\Borland\Delphi5\Bin\make.exe
Warning: G:\cygwin\bin\make.exe hides c:\PROGRA~1\Borland\Delphi5\Bin\make.exe
Found: G:\cygwin\bin\sh.exe
56k 2000/12/03 G:\cygwin\bin\cygbz21.0.dll - os=4.0 img=1.0 sys=4.0
"cygbz21.0.dll" v0.0 ts=2000/11/21 10:53
82k 2001/01/21 G:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
"cygform5.dll" v0.0 ts=2001/1/22 7:39
18k 2000/10/23 G:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm.dll" v0.0 ts=2000/10/23 12:26
17k 2001/01/07 G:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
"cyghistory4.dll" v0.0 ts=2001/1/7 15:34
14k 2000/10/23 G:\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0
"cygintl.dll" v0.0 ts=2000/10/24 5:02
81k 2000/12/05 G:\cygwin\bin\cygitcl30.dll - os=4.0 img=1.0 sys=4.0
"cygitcl30.dll" v0.0 ts=2000/11/26 12:43
35k 2000/12/05 G:\cygwin\bin\cygitk30.dll - os=4.0 img=1.0 sys=4.0
"cygitk30.dll" v0.0 ts=2000/11/26 12:43
45k 2000/10/22 G:\cygwin\bin\cygjbig1.dll - os=4.0 img=1.0 sys=4.0
"cygjbig1.dll" v0.0 ts=2000/10/23 9:06
119k 2000/10/23 G:\cygwin\bin\cygjpeg6b.dll - os=4.0 img=1.0 sys=4.0
"cygjpeg6b.dll" v0.0 ts=2000/10/23 10:58
53k 2001/01/21 G:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
"cygmenu5.dll" v0.0 ts=2001/1/22 7:39
414k 2001/01/21 G:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++5.dll" v0.0 ts=2001/1/22 7:40
299k 2001/01/21 G:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses5.dll" v0.0 ts=2001/1/22 7:38
34k 2001/01/21 G:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
"cygpanel5.dll" v0.0 ts=2001/1/22 7:38
163k 2001/02/03 G:\cygwin\bin\cygpng2.dll - os=4.0 img=1.0 sys=4.0
"cygpng2.dll" v0.0 ts=2001/2/4 8:21
108k 2001/01/07 G:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
"cygreadline4.dll" v0.0 ts=2001/1/7 15:34
390k 2000/12/05 G:\cygwin\bin\cygtcl80.dll - os=4.0 img=1.0 sys=4.0
"cygtcl80.dll" v0.0 ts=2000/11/26 12:39
5k 2000/12/05 G:\cygwin\bin\cygtclpip80.dll - os=4.0 img=1.0 sys=4.0
10k 2000/12/05 G:\cygwin\bin\cygtclreg80.dll - os=4.0 img=1.0 sys=4.0
"cygtclreg80.dll" v0.0 ts=2000/11/26 12:39
243k 2000/10/23 G:\cygwin\bin\cygtiff3.dll - os=4.0 img=1.0 sys=4.0
"cygtiff3.dll" v0.0 ts=2000/10/23 11:14
623k 2000/12/05 G:\cygwin\bin\cygtk80.dll - os=4.0 img=1.0 sys=4.0
"cygtk80.dll" v0.0 ts=2000/11/26 12:43
41k 2000/11/20 G:\cygwin\bin\cygXpm-noX4.dll - os=4.0 img=1.0 sys=4.0
"cygXpm-noX4.dll" v0.0 ts=2000/11/20 13:41
45k 2000/11/20 G:\cygwin\bin\cygXpm-X4.dll - os=4.0 img=1.0 sys=4.0
"cygXpm-X4.dll" v0.0 ts=2000/11/20 13:45
49k 2001/02/03 G:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2001/2/4 7:35
631k 2001/04/25 G:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2001/4/25 10:01
Cygwin DLL version info:
dll major: 1003
dll minor: 1
dll epoch: 19
dll bad signal mask: 19005
dll old termios: 5
dll malloc env: 28
api major: 0
api minor: 38
shared data: 3
dll identifier: cygwin1
mount registry: 2
cygnus registry name: Cygnus Solutions
cygwin registry name: Cygwin
program options name: Program Options
cygwin mount registry name: mounts v2
cygdrive flags: cygdrive flags
cygdrive prefix: cygdrive prefix
cygdrive default prefix:
build date: Tue Apr 24 20:01:02 EDT 2001
shared id: cygwin1S3
Use -h to see help about each section
#include <stdio.h>
int
main(int argc, char **argv) {
char owner;
float w, s, e, n;
while (scanf("%c %f %f %f %f\n", &owner, &w, &s, &e, &n) == 5) {
printf("%c %6.1f %6.1f %6.1f %6.1f\n", owner, w, s, e, n);
}
return(0);
}
A -130.0 80.0 -40.0 100.0
A -120.0 50.0 -100.0 80.0
A 70.0 -100.0 120.0 -60.0
B -40.0 80.0 80.0 100.0
B 30.0 10.0 80.0 80.0
C 80.0 70.0 100.0 100.0
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