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GCC 3.3.1 problem with printf %Lg %Lg and -m128bit-long-double compile option
- From: mathias dot wagner at philips dot com
- To: cygwin at cygwin dot com
- Date: Wed, 26 May 2004 13:41:26 +0200
- Subject: GCC 3.3.1 problem with printf %Lg %Lg and -m128bit-long-double compile option
Hi all,
GCC 3.3.1 has a problem when printing multiple long double variables using
printf and the -m128bit-long-double compile option on a Pentium-based
machine.
compile the code below with
gcc -m128bit-long-double test.c
and with
gcc test.c
The later will print stuff correctly in both printf statements, whereas
the former will print fine only as long as the printf statement contains a
single long double variable only, but will issue garbage when printing
more than one long double variable in the same printf statement.
cheers
Mathias
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
int
main( int argc, char *argv[] )
{
long double first_long_double_variable = 5.6;
long double second_long_double_variable = 9.3;
printf ("here comes a long double %Lg\n", first_long_double_variable);
printf ("here come TWO long doubles %Lg %Lg\n",
first_long_double_variable, second_long_double_variable);
}
Installation Info as copied from cygcheck.out:
Cygwin DLL version info:
DLL version: 1.5.5
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 94
Shared data: 3
DLL identifier: cygwin1
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Cygwin registry name: Cygwin
Program options name: Program Options
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Cygdrive flags: cygdrive flags
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Cygdrive default prefix:
Build date: Sat Sep 20 16:31:15 EDT 2003
CVS tag: cr-0x9b
Shared id: cygwin1S3
Cygwin Package Information
Package Version
_update-info-dir 00221-1
a2ps 4.13-1
agetty 2.1-1
antiword 0.34-2
ash 20031007-1
aspell 0.50.3-1
aspell-doc 0.50.3-1
aspell-en 0.51.0-1
astyle 1.15.3-3
autoconf 2.57a-1
autoconf-devel 2.57-2
autoconf-stable 2.13-5
automake 1.7.5a-1
automake-devel 1.7.6-2
automake-stable 1.4p5-6
base-files 2.6-1
base-passwd 1.1-1
bash 2.05b-16
bc 1.06-1
binutils 20030901-1
bison 20030307-1
byacc 1.9-1
bzip2 1.0.2-5
c-client 2002e-3
ccache 2.2-1
ccdoc 0.8.39-1
check 0.8.4-1
chkconfig 1.2.24h-1
clear 1.0-1
clisp 2.31-2
cmake 1.8.1-1
cocom 0.995-1
compface 1.4-5
cpio 2.5-3
cron 3.0.1-11
crypt 1.1-1
ctags 5.5-4
cvs 1.11.6-3
cygipc 2.02-1
cygrunsrv 0.96-2
cygutils 1.2.2-1
cygwin 1.5.5-1
cygwin-doc 1.3-6
dejagnu 20021217-2
diffutils 2.8.4-1
docbook-xml42 4.2-1
docbook-xsl 1.62.4-1
doxygen 1.2.18-1
dpkg 1.10.4-2
ed 0.2-1
editrights 1.01-1
ELFIO 1.0.0-1
emacs 21.2-12
emacs-el 21.2-12
emacs-X11 21.2-12
enscript 1.6.3-3
exim 4.24-1
expat 1.95.6-2
expect 20030128-1
figlet 2.2-1
file 4.03-2
fileutils 4.1-2
findutils 4.1.7-4
flex 2.5.4a-3
fltk 1.1.4-1
fontconfig 2.2.0-1
fortune 1.8-2
freetype2 2.1.5-1
gawk 3.1.3-4
gcc 3.3.1-3
gcc-ada 3.3.1-3
gcc-g++ 3.3.1-3
gcc-g77 3.3.1-3
gcc-gpc 3.3.1-3
gcc-java 3.3.1-3
gcc-mingw 20030911-4
gcc-mingw-ada 20031020-1
gcc-mingw-core 20031020-1
gcc-mingw-g++ 20031020-1
gcc-mingw-g77 20031020-1
gcc-mingw-gpc 20031020-1
gcc-mingw-java 20031020-1
gcc-mingw-objc 20031020-1
gcc-objc 3.3.1-3
gdb 20030919-1
gdbm 1.8.3-7
gettext 0.12.1-3
gettext-devel 0.12.1-3
ghostscript 7.05-2
ghostscript-base 7.05-2
ghostscript-x11 7.05-2
gmp 4.1.2-1
gnugo 3.4-1
gnupg 1.2.2-3
gperf 2.7.2-1
grep 2.5-1
groff 1.18.1-2
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guile 1.6.4-12
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guile-doc 1.6.4-12
gzip 1.3.5-1
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inetutils 1.3.2-25
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irc 20010101-3
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jgraph 8.3-1
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mt 2.0.1-2
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psutils 1.17-1
python 2.3.2-1
rcs 5.7-3
readline 4.3-5
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robots 2.0-3
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rpm-build 4.1-1
rpm-doc 4.1-1
rsync 2.5.6-2
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sh-utils 2.0.15-4
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sunrpc 4.0-2
SWI-Prolog 5.2.6-1
swig 1.3.19-1
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tar 1.13.25-3
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zip 2.3-5
zlib 1.1.4-4
zsh 4.1.1-1
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