[Octave-bug-tracker] [bug #40576] Assignment to Cell Array of Structure Fields Gives invalid assignment Error

[Matt]

URL:
  <http://savannah.gnu.org/bugs/?40576>

                 Summary: Assignment to Cell Array of Structure Fields Gives
invalid assignment Error
                 Project: GNU Octave
            Submitted by: seventhunders
            Submitted on: Thu 14 Nov 2013 04:55:08 AM GMT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: Matt
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.6.4
        Operating System: GNU/Linux

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Details:

This is a pretty nasty little bug that breaks compatibility with Matlab. 
Basically for fairly complex cell arrays that contain structures, it may fail
to assign fields of those structures.

Consider the following code snippet.  (Requires loading saved cell array file
cellassbug)


load cellassbug
% error: invalid assignment to cs-list outside multiple assignment
pcUlBuf{1,1,1}.bins = 2 * pcUlBuf{1,1,1}.bins ;
% actually any assignment to members of the cell array struct now fails
% e.g.
pcUlBuf{1,1,1}.bins = 2 ;


Running this with the provided saved file yields the error,
error: invalid assignment to cs-list outside multiple assignment

Matlab has no problem with this, and I don't understand why octave should have
issues with it either.




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File Attachments:


-------------------------------------------------------
Date: Thu 14 Nov 2013 04:55:08 AM GMT  Name: cellassbug  Size: 248kB   By:
seventhunders

<http://savannah.gnu.org/bugs/download.php?file_id=29617>

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