Bug 116951 – sci-mathematics/yacas-1.0.56 eats "0" characters unless stdin is a tty

• Product: Gentoo Linux
• Status: RESOLVED FIXED

[Description Jason Bucata 2005-12-28 00:19:25 UTC]

If you write a text file with commands for yacas to process, and redirect standard input from that file, any zero characters in the input get eaten.  I haven't exercised the program much but I haven't noticed that happening with any other character.  This also occurs with a pipe.

It doesn't happen if stdin is a tty (you're running it interactively).

Example:

$ yacas
...
To see example commands, keep typing Example();
In> 20+5  <-- typed interactively
Out> 25
In> quit
Quitting...

$ echo -e '20+5\nquit' | yacas
...
To see example commands, keep typing Example();
In> 2+5
Out> 7
In> quit
Quitting...

I tried 1.0.58 and it does NOT have this bug:

$ echo -e '20+5\nquit' | yacas
...
To see example commands, keep typing Example();
In> 20+5
Out> 25
In> quit
Quitting...

[Comment 1 Sébastien Fabbro (RETIRED) 2006-01-24 02:46:18 UTC]

I cold not reproduce this behaviour with yacas-1.56 on x86.
Could you post your emerge info?
Anyway, if the bug persists, the simplest solution is for one of the dev to bump stable yacas-1.58 on x86 (last change for x86 was in Oct.2005). Note it is already stable on amd64.

[Comment 2 Jason Bucata 2006-01-24 22:00:48 UTC]

Just re-emerged .56 and it still does it.  FWIW my previous compile had been with gcc 3.3.6, and this was with gcc 3.4.4.

Portage 2.0.54 (default-linux/x86/2005.0, gcc-3.4.4, glibc-2.3.5-r2, 2.6.14-gentoo-r5 i686)
=================================================================
System uname: 2.6.14-gentoo-r5 i686 AMD Athlon(tm) XP 2500+
Gentoo Base System version 1.6.14
ccache version 2.3 [disabled]
dev-lang/python:     2.3.5-r2, 2.4.2
sys-apps/sandbox:    1.2.12
sys-devel/autoconf:  2.13, 2.59-r6
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1
sys-devel/binutils:  2.16.1
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.11-r2
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-pipe -O2 -march=athlon-xp -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-pipe -O2 -march=athlon-xp -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig distlocks sandbox sfperms strict"
GENTOO_MIRRORS="http://mirrors.acm.cs.rpi.edu/gentoo http://distro.ibiblio.org/pub/Linux/distributions/gentoo"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 3dnow 3dnowex X aac acl acpi alsa apm audiofile avi berkdb bitmap-fonts bonobo bzip2 bzlib cdr crypt cscope cups curl eds emboss esd exif expat fam flac foomaticdb fortran gb gdbm gif glut gnome gpm gstreamer gtk gtk2 gtkhtml guile imagemagick imlib ipv6 jack java jpeg lcms libg++ libwww mad maildir matrox mbox memlimit mikmod mmx mmx2 mng mozilla mp3 mpeg ncurses nls ofx ogg oggvorbis openal opengl oss pam pcntl pcre pdflib perl pic png posix ppds prelude python quicktime readline recode sdl speex spell sse ssl svg tcpd tetex theora tiff truetype truetype-fonts type1-fonts udev unicode usb videos vorbis xine xml xml2 xmms xv xvid zlib video_cards_matrox userland_GNU kernel_linux elibc_glibc"
Unset:  ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS, MAKEOPTS, PORTDIR_OVERLAY

[Comment 3 Jason Bucata 2006-01-24 22:25:08 UTC]

Oho......  When I recompiled with CFLAGS='-pipe' CXXFLAGS='${CFLAGS}', .56 worked!  I'm facing a gcc optimization bug, it seems!

[Comment 4 Sébastien Fabbro (RETIRED) 2006-01-25 00:45:50 UTC]

I have a very similar system on my athlon 2800, except that I use the 2005.1 make.profile, nptl enabled, and without -fomit-frame-pointer flag. Anyway I recompiled it with the CFLAGS from your emerge info, and is working fine.
I wonder where your bug comes from.

[Comment 5 Marcus D. Hanwell (RETIRED) 2006-04-15 01:56:38 UTC]

x86 team - could you please mark sci-mathematics/yacas-1.0.61 stable to fix this bug? An optimisation bug was found in bug 126779 which I have fixed and this version has many other improvements. Please let me know if there are any problems with testing. Thanks.

[Comment 6 Matthias Langer 2006-04-16 19:47:50 UTC]

yacas-1.0.61 [ +glut ] seems to work fine on x86. For testing i've feed yacas with a few simple expressions, solved some equations, computed derviates ..., and double checked, that the new version in fact doesn't eat any '0' caracters.

Portage 2.0.54 (default-linux/x86/2006.0, gcc-3.4.5, glibc-2.3.5-r3, 2.6.15-gentoo-r5 i686)
=================================================================
System uname: 2.6.15-gentoo-r5 i686 AMD Athlon(tm) XP 2400+
Gentoo Base System version 1.6.14
dev-lang/python:     2.3.5-r2, 2.4.2
sys-apps/sandbox:    1.2.12
sys-devel/autoconf:  2.13, 2.59-r7
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1
sys-devel/binutils:  2.16.1
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.11-r2
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -march=athlon-xp -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/eselect/compiler /etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O2 -march=athlon-xp -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig collision-protect distlocks sandbox sfperms strict"
GENTOO_MIRRORS="http://gentoo.inode.at/ "
LANG="en_US.utf8"
LC_ALL="en_US.utf8"
LINGUAS="en de"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://192.168.0.1/gentoo-portage"
USE="x86 3dnow 3dnowext X a52 aalib alsa apm audiofile avi berkdb bitmap-fonts bonobo bzip2 bzlib cairo cdr cli crypt css ctype cups curl dba dbus divx4linux dri dts dv dvd dvdr dvdread emboss encode evo exif expat fam fame fastbuild ffmpeg firefox flac foomaticdb force-cgi-redirect fortran ftp gd gdbm gif glut gmp gnome gphoto2 gpm gstreamer gtk gtk2 gtkhtml guile hal idn imagemagick imlib ipv6 isdnlog java jpeg junit lcms libg++ libwww mad memlimit mhash mikmod mmx mmxext mng motif mp3 mpeg nautilus ncurses nls nptl nsplugin nvidia ogg oggvorbis openal opengl pam pcre pdflib perl plotutils png posix pppd python quicktime readline real ruby sdl session simplexml slang soap sockets speex spell spl sqlite sse ssl subtitles svga tcltk tcpd tetex theora tiff tokenizer truetype truetype-fonts type1-fonts udev unicode usb vcd video_cards_nvidia vorbis win32codecs wma xine xml xml2 xmms xsl xv xvid zlib linguas_en linguas_de userland_GNU kernel_linux elibc_glibc"
Unset:  ASFLAGS, CTARGET, INSTALL_MASK, LDFLAGS

[Comment 7 Joshua Jackson (RETIRED) 2006-04-17 21:00:27 UTC]

x86 done \(^.^)/

thanks as always for providing examples of how to test the application.