[Octave-bug-tracker] [bug #34128] str2num does not return empty correctly, but errors out

[Ben Barrowes]

URL:
  <http://savannah.gnu.org/bugs/?34128>

                 Summary: str2num does not return empty correctly, but errors
out
                 Project: GNU Octave
            Submitted by: barrowes
            Submitted on: Thu 25 Aug 2011 12:25:16 PM GMT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: barrowes
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

str2num does not return an empty matrix properly when receiving non-numeric
input.

octave:5> str2num('1+2*a')                            
stopped in /usr/local/share/octave/3.5.0+/m/strings/str2num.m
debug> dbstack
stopped in:

  --> str2num at line 58 [/usr/local/share/octave/3.5.0+/m/strings/str2num.m]
debug> 

octave:5>




I have set debug_on_error(1), but I don't think that is the problem because
the eval example works fine:




octave:4>    eval ('error ("This is a bad example");',
>                'printf ("This error occurred:\n%s\n", lasterr ());');
This error occurred:
This is a bad example
octave:5>





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