[Octave-bug-tracker] [bug #37756] powerset: typo on error message and doesn't return cell array when set is empty [with patch]

[Carnë Draug]

URL:
  <http://savannah.gnu.org/bugs/?37756>

                 Summary: powerset: typo on error message and doesn't return
cell array when set is empty [with patch]
                 Project: GNU Octave
            Submitted by: carandraug
            Submitted on: Thu 15 Nov 2012 11:08:24 PM GMT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

powerset should always returns a cell array but returns an empty matrix if the
input set is empty.


octave:1> powerset([])
ans = [](0x0)


Also, the error message for checking the second argument is the word "rows" is
also incorrect, and mentions "third" argument.

My patch fixes this two things, furthers the documentation (which at the
moment is a single line without explanation of the rows option), adds 2 more
tests (one for empty set and another for the use of the rows option) and one
more input check that cell arrays can only be used with cell array of
strings.

Please pull changeset 9671baab36c4 from
https://bitbucket.org/carandraug/octave/

Carnë




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