bugGNU Octave - Bugs: bug #55774, Subsasign on class member: a...


bug #55774: Subsasign on class member: a cs-list cannot be further indexed

Submitted by:  None
Submitted on:  Sun 24 Feb 2019 12:06:03 PM UTC  
Category:  Interpreter Severity:  2 - Minor
Priority:  5 - Normal Item Group:  Matlab Compatibility
Status:  Confirmed Assigned to:  None
Originator Name:  Jonas Originator Email:  -email is unavailable-
Open/Closed:  Open Release:  5.1.0
Operating System:  Any

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Sat 09 Mar 2019 03:59:01 PM UTC, comment #3:

This issue may be because numel is being called inappropriately.

I used a modified version of the A class below.

Then I executed

What happens next is that the numel() function for the A class is called and I hit the keyboard statement. This does not appear to be correct. If the interpreter was validating that the index 3 is okay it needs to call numel on (a.list) which is a cell array. Instead, it seems that it may be checking that numel (a).

Rik <rik5>
Project Administrator
Sun 24 Feb 2019 08:35:18 PM UTC, comment #2:

I can confirm that it:

  • fails in 5.0.91
  • works in matlab r2019a:
Philip Nienhuis <philipnienhuis>
Project Member
Sun 24 Feb 2019 12:13:03 PM UTC, comment #1:

and A defines numel that returns a value > 1

Sun 24 Feb 2019 12:06:03 PM UTC, original submission:

Assuming that class A has a member list which is a cell array



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  • -email is unavailable- added by rik5 (Posted a comment)
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    Follow 8 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2019-03-09 rik5 Carbon-Copy- => Added jwe
    2019-02-26 mtmiller CategoryNone => Interpreter
        Severity3 - Normal => 2 - Minor
        Item GroupNone => Matlab Compatibility
        Release5.0.91 => 5.1.0
        Operating SystemMicrosoft Windows => Any
    2019-02-24 philipnienhuis StatusNone => Confirmed
        Release4.4.0 => 5.0.91

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