From bug-octave-request at bevo dot che dot wisc dot edu  Sat Sep 16 22:30:31 1995
From: Scott Bushman <bushman at che dot utexas dot edu>
To: bug-octave at bevo dot che dot wisc dot edu, bug-octave@che.utexas.edu,         jwe@bevo.che.wisc.edu
Date: Sat, 16 Sep 1995 22:30:29 -0500

To: bug-octave at che dot utexas dot edu
Subject: Error in output_precision?
cc: jwe at bevo dot che dot wisc dot edu, bug-octave@bevo.che.wisc.edu

Bug report for Octave 1.1.1 configured for rs6000-ibm-aix3.2.5

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

repeated use of the output_precision function with negative numbers
causes segmentation fault.

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

Given below is a list of sequences and results which caused crash:

octave:1> output_precision=-10
output_precision = -10
octave:2> output_precision=-10
warning: invalid value specified for output_precision
error: Segmentation fault -- stopping myself...


Although this sequence causes a segmentation fault on 
bullwinkle.che.utexas.edu, the repeat of the sequence on another
machine  (Octave 1.1.1 on june.che.utexas.edu running Ultrix) resulted
in the following:

octave:1> output_precision= -10
output_precision = -10
octave:2> output_precision= -10
warning: invalid value specified for output_precision
octave:3> output_precision= -10
warning: invalid value specified for output_precision
octave:4>

and appears to trap the error.


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

uname output:     AIX bullwinkle 2 3 000007317100
Fortran compiler: xlf
FFLAGS:           -O
F2C:              
F2CFLAGS:         
FLIBS:            -lxlf
C compiler:       gcc
CFLAGS:           -DHAVE_CONFIG_H  -g -O
C++ compiler:     c++
CXXFLAGS:         -DHAVE_CONFIG_H -Wa,-u -fno-implicit-templates  -g -O
LDFLAGS:          -g
DEFS:

  -DOCTAVE_SOURCE=1 -DSEPCHAR=':' -DSEPCHAR_STR=: -D_ALL_SOURCE=1
  -DHAVE_STRFTIME=1 -DSIZEOF_SHORT=2 -DSIZEOF_INT=4 -DSIZEOF_LONG=4
  -DWORDS_BIGENDIAN=1 -DIEEE_BIG_ENDIAN=1 -DHAVE_ALLOCA=1
  -DSTDC_HEADERS=1 -DHAVE_ASSERT_H=1 -DHAVE_FLOAT_H=1 -DHAVE_LIMITS_H=1
  -DHAVE_MEMORY_H=1 -DHAVE_PWD_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1
  -DHAVE_VARARGS_H=1 -DHAVE_UNISTD_H=1 -DHAVE_SYS_UTSNAME_H=1
  -DHAVE_SYS_TIME_H=1 -DHAVE_SYS_SELECT_H=1 -DHAVE_SYS_RESOURCE_H=1
  -DHAVE_DIRENT_H=1 -DTIME_WITH_SYS_TIME=1 -DHAVE_TERMIOS_H=1
  -DHAVE_SETVBUF=1 -DHAVE_GETCWD=1 -DHAVE_GETHOSTNAME=1 -DHAVE_BZERO=1
  -DHAVE_BCOPY=1 -DHAVE_RINDEX=1 -DHAVE_VFPRINTF=1 -DHAVE_VSPRINTF=1
  -DHAVE_STRCASECMP=1 -DHAVE_STRNCASECMP=1 -DHAVE_STRERROR=1
  -DHAVE_ATEXIT=1 -DHAVE_TEMPNAM=1 -DHAVE_MEMMOVE=1 -DHAVE_PUTENV=1
  -DHAVE_GETTIMEOFDAY=1 -DHAVE_GETRUSAGE=1 -DHAVE_LIBM=1 -DHAVE_FINITE=1
  -DHAVE_ISNAN=1 -DHAVE_ACOSH=1 -DHAVE_ASINH=1 -DHAVE_ATANH=1
  -DHAVE_ERF=1 -DHAVE_ERFC=1 -DHAVE_LGAMMA=1 -DSIGNGAM_DECLARED=1
  -DEXCEPTION_IN_MATH=1 -DRETSIGTYPE=void -DHAVE_SYS_SIGLIST=1

User-preferences (please do not edit this section):
--------------------------------------------------

  EDITOR = "vi"
  IMAGEPATH = ".:/usr/local/lib/octave/1.1.1/imagelib//"
  INFO_FILE = "/usr/local/info/octave.info"
  LOADPATH = ".:/home/bushman/octave/examples:/home/bushman/octave/laserint:/home/bushman/octave/paramestim:/home/bushman/octave/rfcalib:/home/bushman/octave/npsol:/home/bushman/octave/nnmodel:/home/bushman/octave/gradient:/home/bushman/nnet:/home/bushman/octave/pls_toolbox:"
  OCTAVE_VERSION = "1.1.1"
  PAGER = "/usr/local/bin/less -icqsM"
  PS1 = "\\s:\\#> "
  PS2 = "> "
  automatic_replot = "false"
  whitespace_in_literal_matrix = ""
  default_save_format = "ascii"
  do_fortran_indexing = "false"
  empty_list_elements_ok = "warn"
  eps = 2.22045e-16
  gnuplot_binary = "gnuplot"
  ignore_function_time_stamp = "system"
  implicit_str_to_num_ok = "false"
  ok_to_lose_imaginary_part = "warn"
  output_max_field_width = 10
  output_precision = 5
  page_screen_output = "false"
  prefer_column_vectors = "true"
  prefer_zero_one_indexing = "false"
  print_answer_id_name = "true"
  print_empty_dimensions = "true"
  propagate_empty_matrices = "true"
  resize_on_range_error = "true"
  return_last_computed_value = "false"
  save_precision = 17
  silent_functions = "false"
  split_long_rows = "true"
  treat_neg_dim_as_zero = "false"
  warn_assign_as_truth_value = "true"
  warn_comma_in_global_decl = "true"
  warn_divide_by_zero = "true"


Scott Bushman
Dept. of Chemical Engineering C0400        phone:   (512) 471-1046
University of Texas  at  Austin	           FAX:     (512) 471-7060
Austin, TX  78712-1062		           e-mail:  bushman at che dot utexas dot edu