From bug-octave-request at bevo dot che dot wisc dot edu  Fri Nov  5 03:25:04 1999
Subject:  problems with file input from stdin
From: Vladimir Eltsov <ve at slon dot hut dot fi>
To: bug-octave at bevo dot che dot wisc dot edu, ve@slon.hut.fi
Date: Fri, 5 Nov 1999 11:25:01 +0200

To: bug-octave at bevo dot che dot wisc dot edu
Cc: ve
Subject: problems with file input from stdin

Bug report for Octave 2.1.20 configured for i686-pc-linux-gnu

Description:
-----------

Octave treats stdin differently from other files even if stdin
is not a terminal. Sometimes it is just inconvinience for writing 
filters as octave scripts (and I consider this scripting ability
as a great advantage of octave over matlab, scilab etc), sometimes
this leads to bugs.

First, feof(stdin) always returns error.
Second, scanf has a bug (see below).

Repeat-By:
---------

> cat testit
#!/opt/octave/bin/octave -qf
[a,k]=scanf("%f",Inf)
> echo "1 2 3" | testit
a = [](0x0)
k = 3
> echo "1 2 3\n4 5 6" | testit
a = [](0x0)
k = 6


Configuration (please do not edit this section):
-----------------------------------------------

uname output:     Linux slon.hut.fi 2.2.12-20 #1 Mon Sep 27 10:40:35 EDT 1999 i686 unknown
configure opts:   --prefix=/opt/octave --enable-shared
Fortran compiler: g77
FFLAGS:           -O9 -mpentiumpro -pipe
F2C:              
F2CFLAGS:         
FLIBS:            -lg2c -lm -L/usr/lib/gcc-lib/i386-redhat-linux/egcs-2.91.66 -L/usr/i386-redhat-linux/lib -lm
CPPFLAGS:         
INCFLAGS:         -I/opt/octave/include/octave-2.1.20/octave -I/opt/octave/include
C compiler:       gcc, version 2.91.66 19990314/Linux (egcs-1.1.2 release)
CFLAGS:           -DHAVE_CONFIG_H -mieee-fp -O9 -mpentiumpro -pipe
CPICFLAG:         -fPIC
C++ compiler:     c++, version 2.91.66 19990314/Linux (egcs-1.1.2 release)
CXXFLAGS:         -DHAVE_CONFIG_H -mieee-fp -fno-rtti -fno-exceptions -fno-implicit-templates -O9 -mpentiumpro -pipe
CXXPICFLAG:       -fPIC
LDFLAGS:          -g
LIBFLAGS:         -L/opt/octave/lib/octave-2.1.20
RLD_FLAG:         -Xlinker -rpath -Xlinker /opt/octave/lib/octave-2.1.20
TERMLIBS:         -lncurses
LIBS:             
LEXLIB:           
LIBPLPLOT:        
LIBDLFCN:         
LIBGLOB:          ./glob/libglob.a
DEFS:

  -DOCTAVE_SOURCE=1 -DSEPCHAR=':' -DSEPCHAR_STR=":" -DUSE_READLINE=1
  -D__NO_MATH_INLINES=1 -DCXX_NEW_FRIEND_TEMPLATE_DECL=1 -DHAVE_LIBM=1
  -DF77_APPEND_UNDERSCORE=1 -DSIZEOF_SHORT=2 -DSIZEOF_INT=4 -DSIZEOF_LONG=4
  -DHAVE_ALLOCA_H=1 -DHAVE_ALLOCA=1 -DNPOS=string::npos -DSTDC_HEADERS=1
  -DHAVE_DIRENT_H=1 -DTIME_WITH_SYS_TIME=1 -DHAVE_SYS_WAIT_H=1
  -DHAVE_ASSERT_H=1 -DHAVE_CURSES_H=1 -DHAVE_DLFCN_H=1 -DHAVE_FCNTL_H=1
  -DHAVE_FLOAT_H=1 -DHAVE_FNMATCH_H=1 -DHAVE_GLOB_H=1 -DHAVE_GRP_H=1
  -DHAVE_LIMITS_H=1 -DHAVE_MEMORY_H=1 -DHAVE_NCURSES_H=1 -DHAVE_POLL_H=1
  -DHAVE_PWD_H=1 -DHAVE_SGTTY_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1
  -DHAVE_SYS_IOCTL_H=1 -DHAVE_SYS_PARAM_H=1 -DHAVE_SYS_POLL_H=1
  -DHAVE_SYS_RESOURCE_H=1 -DHAVE_SYS_SELECT_H=1 -DHAVE_SYS_STAT_H=1
  -DHAVE_SYS_TIME_H=1 -DHAVE_SYS_TIMES_H=1 -DHAVE_SYS_TYPES_H=1
  -DHAVE_SYS_UTSNAME_H=1 -DHAVE_TERMCAP_H=1 -DHAVE_TERMIO_H=1
  -DHAVE_UNISTD_H=1 -DHAVE_VARARGS_H=1 -DHAVE_ATEXIT=1 -DHAVE_BCOPY=1
  -DHAVE_BZERO=1 -DHAVE_DUP2=1 -DHAVE_ENDGRENT=1 -DHAVE_ENDPWENT=1
  -DHAVE_EXECVP=1 -DHAVE_FCNTL=1 -DHAVE_FORK=1 -DHAVE_GETCWD=1
  -DHAVE_GETEGID=1 -DHAVE_GETEUID=1 -DHAVE_GETGID=1 -DHAVE_GETGRENT=1
  -DHAVE_GETGRGID=1 -DHAVE_GETGRNAM=1 -DHAVE_GETHOSTNAME=1 -DHAVE_GETPGRP=1
  -DHAVE_GETPID=1 -DHAVE_GETPPID=1 -DHAVE_GETPWENT=1 -DHAVE_GETPWNAM=1
  -DHAVE_GETPWUID=1 -DHAVE_GETTIMEOFDAY=1 -DHAVE_GETUID=1 -DHAVE_GETWD=1
  -DHAVE_LSTAT=1 -DHAVE_MEMMOVE=1 -DHAVE_MKDIR=1 -DHAVE_MKFIFO=1
  -DHAVE_ON_EXIT=1 -DHAVE_PIPE=1 -DHAVE_POLL=1 -DHAVE_PUTENV=1
  -DHAVE_RENAME=1 -DHAVE_RINDEX=1 -DHAVE_RMDIR=1 -DHAVE_SELECT=1
  -DHAVE_SETGRENT=1 -DHAVE_SETPWENT=1 -DHAVE_SETVBUF=1 -DHAVE_SIGACTION=1
  -DHAVE_SIGPENDING=1 -DHAVE_SIGPROCMASK=1 -DHAVE_SIGSUSPEND=1
  -DHAVE_STAT=1 -DHAVE_STRCASECMP=1 -DHAVE_STRDUP=1 -DHAVE_STRERROR=1
  -DHAVE_STRFTIME=1 -DHAVE_STRNCASECMP=1 -DHAVE_TEMPNAM=1 -DHAVE_UMASK=1
  -DHAVE_UNLINK=1 -DHAVE_USLEEP=1 -DHAVE_VFPRINTF=1 -DHAVE_VSPRINTF=1
  -DHAVE_WAITPID=1 -DHAVE_LIBDL=1 -DHAVE_DLOPEN=1 -DHAVE_DLSYM=1
  -DHAVE_DLERROR=1 -DHAVE_DLCLOSE=1 -DWITH_DL=1 -DWITH_DYNAMIC_LINKING=1
  -DHAVE_TIMEVAL=1 -DHAVE_FINITE=1 -DHAVE_ISNAN=1 -DHAVE_ISINF=1
  -DHAVE_ACOSH=1 -DHAVE_ASINH=1 -DHAVE_ATANH=1 -DHAVE_ERF=1 -DHAVE_ERFC=1
  -DHAVE_ST_BLKSIZE=1 -DHAVE_ST_BLOCKS=1 -DHAVE_ST_RDEV=1 -DHAVE_TM_ZONE=1
  -DHAVE_GR_PASSWD=1 -DEXCEPTION_IN_MATH=1 -DRETSIGTYPE=void
  -DSYS_SIGLIST_DECLARED=1 -DHAVE_SYS_SIGLIST=1 -DHAVE_POSIX_SIGNALS=1
  -DHAVE_GETRUSAGE=1 -DHAVE_TIMES=1 -DGNUPLOT_HAS_MULTIPLOT=1
  -DGNUPLOT_HAS_FRAMES=1



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