bugGNU Octave - Bugs: bug #56323, Default (c)transpose for classdef...

 
 

bug #56323: Default (c)transpose for classdef classes

Submitter:  Kai Torben Ohlhus <siko1056>
Submitted:  Wed 15 May 2019 12:46:47 PM UTC
   
 
Category:  Classdef Severity:  2 - Minor
Priority:  5 - Normal Item Group:  Matlab Compatibility
Status:  Confirmed Assigned to:  siko1056
Originator Name:  Open/Closed:  * Open
Release:  * 5.1.0 Operating System:  * Any
Fixed Release:  None Planned Release:  None
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Mon 20 May 2019 07:52:49 AM UTC, comment #1: 

Partial fix for the old style classes: https://hg.savannah.gnu.org/hgweb/octave/rev/4ae89360ca16.

Kai Torben Ohlhus <siko1056>
Group Member
Wed 15 May 2019 12:46:47 PM UTC, original submission:  

When creating arrays of old style objects, as shown by the Blork class

https://hg.savannah.gnu.org/hgweb/octave/file/15d3f8857326/test/classes/%40Blork

Matlab R2019a is able to (conjugate) transpose them without overloading (c)transpose, what essentially is a modification of the array shape.


x1 = Blork ();
x2 = [x1 x1];
x2';
error: ctranspose method not defined for Blork class
x2.';
error: transpose method not defined for Blork class


The same applies for classdef classes, using the plist_t2 class as example  https://hg.savannah.gnu.org/hgweb/octave/file/15d3f8857326/test/classdef


bla(1) = plist_t2;
bla(2) = plist_t2;
bla'
error: ctranspose method not defined for plist_t2 class
bla.'
error: transpose method not defined for plist_t2 class


The fix for the old style classes is rather simple and avoids slowdown by not using m-files for standard behavior.  Thus I would like to include it into 5.2.0.

Kai Torben Ohlhus <siko1056>
Group Member

 

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Attached Files
file #46912:  class_ctranspose.patch added by siko1056 (4KiB - text/x-patch)

 

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  • -email is unavailable- added by mmuetzel (Updated the item)
  • -email is unavailable- added by rik5 (Updated the item)
  • -email is unavailable- added by siko1056 (Submitted the item)
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    Follow 6 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2024-01-23 mmuetzel CategoryInterpreter Classdef
    2024-01-18 rik5 StatusPatch Submitted Confirmed
        SummaryDefault (c)transpose for classdef and old style classes Default (c)transpose for classdef classes
        Dependencies- Depends on bugs #65179
    2024-01-18 rik5 Dependencies- Depends on bugs #44665
    2019-05-15 siko1056 Attached File- Added class_ctranspose.patch, #46912

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