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[Octave-bug-tracker] [bug #53811] Cellfun does not corrrectly find an ov
From: |
Dave Goel |
Subject: |
[Octave-bug-tracker] [bug #53811] Cellfun does not corrrectly find an overloaded function. |
Date: |
Wed, 2 May 2018 13:29:03 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.117 Safari/537.36 |
URL:
<http://savannah.gnu.org/bugs/?53811>
Summary: Cellfun does not corrrectly find an overloaded
function.
Project: GNU Octave
Submitted by: deego
Submitted on: Wed 02 May 2018 05:29:01 PM UTC
Category: None
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Incorrect Result
Status: None
Assigned to: None
Originator Name: DAVE GOEL
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 4.2.2
Operating System: GNU/Linux
_______________________________________________________
Details:
Cellfun does not correctly find function overloads on objects when the
argument is the name of a function (e.g. 'numel'). [quoting Mike Miller] -
Here's an SSCCE by Joris Gillis (casadi developer) -
classdef Foo
methods
function r=size(self)
r = [2 3];
end
function r=numel(self)
r = 6;
end
end
end
numel(Foo) ## => 6
cellfun('numel',{Foo Foo}) ## => % [1 1]
Ditto for size and other built-ins. Tested with 4.2.2 from debian backports.
Per Mike, also persists in earlier versions.
----
Here's an example of how the bug affects casadi:
Octave__13:22:11_0021844_2> p = SX.sym('p', [2 3])
Octave__13:22:22_0021844_4> numel(p)
ans = 6
Octave__13:22:25_0021844_5> cellfun(@numel, {p,p})
ans =
1 1 => Expected [6 6]
----
(with Thanks to Joris Gillis and Mike Miller: )
See also
https://savannah.gnu.org/bugs/?46571
and
https://github.com/casadi/casadi/issues/2253
dave
_______________________________________________________
Reply to this item at:
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- [Octave-bug-tracker] [bug #53811] Cellfun does not corrrectly find an overloaded function.,
Dave Goel <=