[Octave-bug-tracker] [bug #44665] error in concatenation of classdef objects

[jsh]

URL:
  <http://savannah.gnu.org/bugs/?44665>

                 Summary: error in concatenation of classdef objects
                 Project: GNU Octave
            Submitted by: jsh
            Submitted on: Mon 30 Mar 2015 06:40:35 AM GMT
                Category: Interpreter
                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: 4.0.0-rc2
        Operating System: Any

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Details:

Concatenation of classdef objects fail with the error messages:

error: invalid conversion of multi-dimensional struct to scalar struct
error: octave_base_value::parent_class_name_list(): wrong type argument
'object'

It seems at least one part of the problem are the '__parent_classes__' and
'parent_class_names' functions which do not seem to support classdef objects.

To test, create a class, for example:


classdef foo
  properties
    bar = 1;
  end
end


and try to concatenate some instances:


a = foo();
[ a a ]
__parent_classes__(a)


If this isn't supported yet maybe a better error message should be printed
instead.




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