bugGNU Octave - Bugs: bug #53652, Cannot save function handle to a...

 
 

bug #53652: Cannot save function handle to a Matlab file format

Submitted by:  Ceral Paquet <octavebugs>
Submitted on:  Sat 14 Apr 2018 12:07:42 PM UTC  
 
Category:  Octave Function Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Matlab Compatibility
Status:  Duplicate Assigned to:  None
Originator Name:  Open/Closed:  Closed
Release:  4.2.1 Operating System:  GNU/Linux

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Sat 14 Apr 2018 11:14:04 PM UTC, comment #2: 

THis was reported a few years ago, see bug #43215. Closing this bug report as a duplicate.

Mike Miller <mtmiller>
Project Administrator
Sat 14 Apr 2018 12:44:29 PM UTC, comment #1: 

I don't think this has ever worked because Matlab has not published the file format for function handles so we have no idea how to implement saving them.

If you need to save function handles use one of Octave's own formats.

octave:4> f = @sin
f = @sin
octave:5> save -text tmp f
octave:6> save -v7 tmp f
warning: save: wrong type argument 'function handle'
error: save: error while writing 'f' to MAT file
octave:6> save -v6 tmp f
warning: save: wrong type argument 'function handle'
error: save: error while writing 'f' to MAT file
octave:6> save -v4 tmp f
warning: save: wrong type argument 'function handle'

Rik <rik5>
Project Administrator
Sat 14 Apr 2018 12:07:42 PM UTC, original submission:  

>> clear all
>> f=@sin
f = @sin
>> f(1)
ans =  0.84147
>> save temp.mat
warning: save: wrong type argument 'function handle'
error: save: error while writing 'f' to MAT file

Ceral Paquet <octavebugs>

 

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    Follow 7 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2018-04-14 mtmiller StatusConfirmed => Duplicate
        Open/ClosedOpen => Closed
        Dependencies- => Depends on bugs #43215
    2018-04-14 rik5 CategoryNone => Octave Function
        Item GroupNone => Matlab Compatibility
        StatusNone => Confirmed
        SummaryCannot save simple function handle => Cannot save function handle to a Matlab file format

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