[Octave-bug-tracker] [bug #38414] Unhelpful error message when loading an invalid sparse matrix

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?38414>

                 Summary: Unhelpful error message when loading an invalid
sparse matrix
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Tue 26 Feb 2013 06:16:50 PM UTC
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Other
                  Status: None
             Assigned to: None
         Originator Name: Michael Ekstrand
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.4.2
        Operating System: GNU/Linux

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Details:

I have an Octave-format text file that (inadvertently) contained a column
index of '1e+05' in a sparse matrix. This confused Octave, of course, but the
resulting error messages was quite unhelpful:


invalid sparse matrix: column index = 0 out of range


In particular, there was no indication of where in the (1.6MB compressed)
input file the error occurred. Fortunately, JordiGH helped me track it down on
IRC, but more helpful error reporting for corrupt input would be very
appreciated.




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