[Octave-bug-tracker] [bug #55779] ordeig fails on 1x1 matrices

[Sébastien Villemot]

URL:
  <https://savannah.gnu.org/bugs/?55779>

                 Summary: ordeig fails on 1x1 matrices
                 Project: GNU Octave
            Submitted by: svillemot
            Submitted on: lun. 25 févr. 2019 16:28:09 UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

There is a bug in the code for ordeig that I contributed. The trivial 1x1
matrices are not handled and lead to a crash:


octave:1> ordeig(1)
error: tril: requested diagonal out of range
error: called from
    ordeig>isquasitri at line 105 column 10
    ordeig at line 50 column 7


while it should simply return 1.

The attached patch fixes the issue and adds a regression test case.




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File Attachments:


-------------------------------------------------------
Date: lun. 25 févr. 2019 16:28:09 UTC  Name: ordeig-1x1.patch  Size: 1kio  
By: svillemot

<http://savannah.gnu.org/bugs/download.php?file_id=46355>

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