From bug-octave-request at bevo dot che dot wisc dot edu  Tue Sep 12 08:51:43 1995
Subject: Mysterious crash
From: Eyal Doron <doron at goofy dot mpi-hd dot mpg dot de>
To: bug-octave at che dot utexas dot edu
Date: Tue, 12 Sep 1995 14:14:32 +0200

Bug report for Octave 1.1.1 configured for alpha-dec-osf1.3

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

Octave crashes after assignments of zeros into a complex vector.

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

goofy:annular> octave
Octave, version 1.1.1.
Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton.
This is free software with ABSOLUTELY NO WARRANTY.
For details, type `warranty'.

octave:1> alph=rand(197,1)+I*rand(197,1);alph(198-(1:8))=zeros(8,1);
octave:2> beta=abs(alph);
error: Floating point exception -- stopping myself...


Fix:
---

??????????????????


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

uname output:     OSF1 goofy.mpi-hd.mpg.de V3.0 347 alpha
Fortran compiler: f77
FFLAGS:           -O
F2C:              
F2CFLAGS:         
FLIBS:            -lUfor -lfor -lFutil -lots
C compiler:       gcc
CFLAGS:           -DHAVE_CONFIG_H  -O
C++ compiler:     c++
CXXFLAGS:         -DHAVE_CONFIG_H  -fno-implicit-templates  -O
LDFLAGS:          -static
DEFS:

  -DOCTAVE_SOURCE=1 -DSEPCHAR=':' -DSEPCHAR_STR=: -DNPSOL_MISSING=1
  -DQPSOL_MISSING=1 -DFSQP_MISSING=1 -DHAVE_STRFTIME=1 -DSIZEOF_SHORT=2
  -DSIZEOF_INT=4 -DSIZEOF_LONG=8 -DIEEE_LITTLE_ENDIAN=1 -DHAVE_ALLOCA_H=1
  -DHAVE_ALLOCA=1 -DF77_APPEND_UNDERSCORE=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_FCNTL_H=1 -DHAVE_SYS_RESOURCE_H=1 -DHAVE_DIRENT_H=1
  -DTIME_WITH_SYS_TIME=1 -DHAVE_SGTTY_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_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 = "nemacs"
  IMAGEPATH = ".:/usr/local/lib/octave/1.1.1/imagelib//"
  INFO_FILE = "/us1/octave/info/octave.info"
  LOADPATH = ".:~/mat//:~frischat/smat/:"
  OCTAVE_VERSION = "1.1.1"
  PAGER = "less -e"
  PS1 = "\\s:\\#> "
  PS2 = "> "
  automatic_replot = "true"
  whitespace_in_literal_matrix = "traditional"
  default_save_format = "mat-binary"
  do_fortran_indexing = "true"
  empty_list_elements_ok = "true"
  eps = 2.22045e-16
  gnuplot_binary = "gnuplot"
  ignore_function_time_stamp = "system"
  implicit_str_to_num_ok = "true"
  ok_to_lose_imaginary_part = "warn"
  output_max_field_width = 10
  output_precision = 5
  page_screen_output = "true"
  prefer_column_vectors = "true"
  prefer_zero_one_indexing = "true"
  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 = "true"
  warn_assign_as_truth_value = "true"
  warn_comma_in_global_decl = "true"
  warn_divide_by_zero = "true"