bugGNU Octave - Bugs: bug #41767, feval not updating function


bug #41767: feval not updating function

Submitter:  Muhali <muhali>
Submitted:  Mon 03 Mar 2014 04:02:16 PM UTC
Category:  Interpreter Severity:  2 - Minor
Priority:  3 - Low Item Group:  Incorrect Result
Status:  None Assigned to:  None
Originator Name:  Open/Closed:  * Open
Release:  * dev Operating System:  * GNU/Linux
Fixed Release:  None Planned Release:  None
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Thu 15 Dec 2016 12:14:35 PM UTC, comment #3: 

This issue is still present in Octave 4.2.0.

Hartmut <hardy>
Wed 05 Mar 2014 08:40:13 AM UTC, comment #2: 

Matlab does not allow for function definitions within the code. When defined in an extra function file (eg. 'A.m') it updates correctly as octave.

In slight modification, with ~a/A.m and ~/b/A.m returning pi and e, resp., both ML and octave display pi when executing

addpath ~/a
fun = @A ;
disp(feval(fun)) ;
rmpath ~/a

addpath ~/b
disp(feval(fun)) ;

Muhali <muhali>
Wed 05 Mar 2014 03:59:43 AM UTC, comment #1: 

Does Matlab behave differently?  That would be one important consideration.

Rik <rik5>
Group administrator
Mon 03 Mar 2014 04:02:16 PM UTC, original submission:  

The code

function y = A()
   y = pi ;

fun = @A ;

function y = A()
   y = e ;

disp(feval(@A)) ;
disp(feval(fun)) ;

shows that the second call to feval does actually not call the updated function 'A'.

When defining 'A' in a function file 'A.m' and doing the updating there everything works, so I'm not sure if this is really a bug.

Muhali <muhali>


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  • -email is unavailable- added by hardy (Posted a comment)
  • -email is unavailable- added by lachlan (Updated the item)
  • -email is unavailable- added by rik5 (Posted a comment)
  • -email is unavailable- added by muhali (Submitted the item)

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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-02-08 lachlan Severity3 - Normal 2 - Minor
        Priority5 - Normal 3 - Low

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