From bug-request at octave dot org Fri Sep 10 15:01:14 2004 Subject: Re: ISNAN breaks TRY-CATCH From: Schloegl Alois To: "John W. Eaton" Cc: bug-octave at bevo dot che dot wisc dot edu Date: Fri, 10 Sep 2004 14:18:55 -0500 ISNAN itself seems to be fine. octave:5> isnan(0) ans = 0 octave:6> isnan(2) ans = 0 octave:7> isnan(nan) ans = 1 I did a few more tests with other functions (see below). It seems not related to ISNAN only, but whether a built-in function is used or not. octave:2> try 2,isinfinite(0);catch 4,end ans = 2 ans = 4 octave:3> try 2,isfinite(0);catch 4,end ans = 2 ans = 4 octave:4> try 2,mean(0);catch 4,end ans = 2 octave:5> try 2,sum(0);catch 4,end ans = 2 ans = 4 octave:6> try 2,sumskipnan(0);catch 4,end I checked out the latest CVS sources and compiled them again. - and get still the same results. I've included my configuration at the end. Alois Quoting "John W. Eaton" : > nOn 9-Sep-2004, Schloegl Alois wrote: > > | Description: > | ----------- > | > | Using ISNAN within a TRY-CATCH construct breaks it. > | I'm using a recent version of CVS-repository. > | > | > | Repeat-By: > | --------- > | > | > | octave:64> try 2,isnan(0);catch 4,end > | ans = 2 > | ans = 4 > | octave:65> try 2,catch 4,end > | ans = 2 > | octave:66> try isnan(0);2,catch 4,end > | ans = 2 > | ans = 4 > > I'm unable to reproduce this behavior. Here is what I see: > > octave:1> try 2,isnan(0);catch 4,end > ans = 2 > octave:2> try 2,catch 4,end > ans = 2 > octave:3> try isnan(0);2,catch 4,end > ans = 2 > > What does isnan(0) produce on your system? Does it generate an error? > > jwe > Configuration (please do not edit this section): ----------------------------------------------- uname output: Linux Edelweiss 2.4.18-bf2.4 #1 Son Apr 14 09:53:28 CEST 2002 i686 GNU/Linux configure opts: Fortran compiler: g77 FFLAGS: -O F2C: F2CFLAGS: FLIBS: -L/usr/lib/gcc-lib/i486-linux/3.3.2 -L/usr/lib/gcc-lib/i486-linux/3.3.2/../../.. -lhdf5 -lz -lfrtbegin -lg2c -lm -lgcc_s CPPFLAGS: INCFLAGS: -I. -I. -I./liboctave -I./src -I./libcruft/misc -I./glob -I./glob C compiler: gcc, version 3.3.2 (Debian) CFLAGS: -g -O2 CPICFLAG: -fPIC C++ compiler: g++, version 3.3.2 CXXFLAGS: -g -O2 CXXPICFLAG: -fPIC LD_CXX: g++ LDFLAGS: LIBFLAGS: -L. 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-DHAVE_GETEUID=1 -DHAVE_GETGID=1 -DHAVE_GETGRENT=1 -DHAVE_GETGRGID=1 -DHAVE_GETGRNAM=1 -DHAVE_GETPGRP=1 -DHAVE_GETPID=1 -DHAVE_GETPPID=1 -DHAVE_GETPWENT=1 -DHAVE_GETPWUID=1 -DHAVE_GETTIMEOFDAY=1 -DHAVE_GETUID=1 -DHAVE_GETWD=1 -DHAVE_KILL=1 -DHAVE_LINK=1 -DHAVE_LOCALTIME_R=1 -DHAVE_LSTAT=1 -DHAVE_MEMMOVE=1 -DHAVE_MKDIR=1 -DHAVE_MKFIFO=1 -DHAVE_MKSTEMP=1 -DHAVE_ON_EXIT=1 -DHAVE_PIPE=1 -DHAVE_POLL=1 -DHAVE_PUTENV=1 -DHAVE_RAISE=1 -DHAVE_READLINK=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_SIGLONGJMP=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_STRPTIME=1 -DHAVE_SYMLINK=1 -DHAVE_TEMPNAM=1 -DHAVE_UMASK=1 -DHAVE_UNLINK=1 -DHAVE_USLEEP=1 -DHAVE_VFPRINTF=1 -DHAVE_VSPRINTF=1 -DHAVE_VSNPRINTF=1 -DHAVE_WAITPID=1 -DHAVE_TIMEVAL=1 -DHAVE_FINITE=1 -DHAVE_ISNAN=1 -DHAVE_ISINF=1 -DHAVE_COPYSIGN=1 -DHAVE_ACOSH=1 -DHAVE_ASINH=1 -DHAVE_ATANH=1 -DHAVE_ERF=1 -DHAVE_ERFC=1 -DHAVE_STRUCT_STAT_ST_BLKSIZE=1 -DHAVE_STRUCT_STAT_ST_BLOCKS=1 -DHAVE_STRUCT_STAT_ST_RDEV=1 -DHAVE_STRUCT_TM_TM_ZONE=1 -DHAVE_TM_ZONE=1 -DUSE_READLINE=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 -DYYTEXT_POINTER=1 -DGNUPLOT_BINARY="gnuplot" -DGNUPLOT_HAS_FRAMES=1 User-preferences (please do not edit this section): -------------------------------------------------- DEFAULT_EXEC_PATH = "/usr/local/libexec/octave/2.1.51/site/exec/i686-pc-linux-gnu:/usr/local/libexec/octave/site/exec/i686-pc-linux-gnu:/usr/local/libexec/octave/2.1.51/exec/i686-pc-linux-gnu:/usr/local/bin" DEFAULT_LOADPATH = 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"/home/schloegl/matlab/NaN:/home/schloegl/matlab/tsa:/home/schloegl/matlab/biosig/:/home/schloegl/matlab/biosig/noneeg:/home/schloegl/matlab/biosig/t500:/home/schloegl/matlab/biosig/t490:/home/schloegl/matlab/biosig/t400:/home/schloegl/matlab/biosig/t300:/home/schloegl/matlab/biosig/t250:/home/schloegl/matlab/biosig/t200:/home/schloegl/matlab/biosig/demo:::/home/schloegl/cvs/octave-forge//::/home/schloegl/matlab/mylib:/home/schloegl/matlab/dpmi/tools:/home/schloegl/matlab/dpmi/steeg:/home/schloegl/matlab/dpmi/siesta:/home/schloegl/matlab/dpmi/ste:/home/schloegl/matlab/dpmi/gdf5:/home/schloegl/matlab/dpmi/edf:/home/schloegl/matlab/histo:/home/schloegl/matlab/dpmi/lindis:/home/schloegl/matlab/tarpe:/cygdrive/t/eegSW/matlab/eeglab4.1" PAGER = "less -e -P'-- less ?pB(%pB\\%):--. (f)orward, (b)ack, (q)uit$'" PS1 = "\\s:\\#> " PS2 = "> " PS4 = "+ " automatic_replot = 1 beep_on_error = 0 completion_append_char = " " crash_dumps_octave_core = 1 default_save_format = "ascii" echo_executing_commands = 0 fixed_point_format = 0 gnuplot_binary = "gnuplot" gnuplot_command_end = "\n" gnuplot_command_plot = "pl" gnuplot_command_replot = "rep" gnuplot_command_splot = "sp" gnuplot_command_title = "t" gnuplot_command_using = "u" gnuplot_command_with = "w" gnuplot_has_frames = 1 history_file = "/home/schloegl/.octave_hist" history_size = 1024 ignore_function_time_stamp = "system" max_recursion_depth = 256 output_max_field_width = 10 output_precision = 5 page_output_immediately = 0 page_screen_output = 1 print_answer_id_name = 1 print_empty_dimensions = 1 print_rhs_assign_val = 0 # return_last_computed_value = save_precision = 15 saving_history = 1 sighup_dumps_octave_core = 1 sigterm_dumps_octave_core = 1 silent_functions = 0 split_long_rows = 1 string_fill_char = " " struct_levels_to_print = 2 suppress_verbose_help_message = 0 warn_assign_as_truth_value = 1 warn_divide_by_zero = 1 warn_empty_list_elements = 0 warn_fortran_indexing = 0 warn_function_name_clash = 1 warn_future_time_stamp = 1 warn_imag_to_real = 0 warn_missing_semicolon = 0 warn_neg_dim_as_zero = 0 warn_num_to_str = 1 warn_resize_on_range_error = 0 warn_separator_insert = 0 warn_single_quote_string = 0 warn_str_to_num = 0 warn_undefined_return_values = 1 warn_variable_switch_label = 0 ------------------------------------------------------------- Octave is freely available under the terms of the GNU GPL. Octave's home on the web: http://www.octave.org How to fund new projects: http://www.octave.org/funding.html Subscription information: http://www.octave.org/archive.html -------------------------------------------------------------