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[Octave-bug-tracker] [bug #58953] Error with 'end' in index expression w
From: |
Guillaume |
Subject: |
[Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls |
Date: |
Sat, 19 Sep 2020 06:28:59 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0 |
Follow-up Comment #45, bug #58953 (project octave):
jwe, I'm sorry I cannot be more helpful here. You seem to be very close to
fixing a number of issues though.
I tried to simplify my example to the maximum and I notice the issue happens
with old-style class but not classdef and the issue does not come up before
applying the patch.
classdef myclass5
properties
data
end
methods
function obj = myclass5
obj.data = 1;
end
function r = subsref(obj,s)
switch s(1).type
case '.'
r = obj.data(end);
end
end
end
end
# @myclass4/myclass4.m
function this = myclass4
this = class (struct ('data', 1), 'myclass4');
end
# @myclass4/subsref.m
function r = subsref (obj, s)
switch (s(1).type)
case '.'
r = obj.data (end);
end
end
octave> obj = myclass4(); obj.data
error: max_recursion_depth exceeded
error: called from
subsref
subsref at line 5 column 9
octave> obj = myclass5(); obj.data
ans = 1
This means that unpatched Octave and Matlab use builtin when evaluating
obj.data in subsref whether there is an 'end' indexing or not. I am trying to
find in the Matlab documentation a description of when subsref is called from
within methods but couldn't so far.
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- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, (continued)
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Fernando, 2020/09/16
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Fernando, 2020/09/17
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, John W. Eaton, 2020/09/17
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Fernando, 2020/09/18
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Guillaume, 2020/09/18
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, John W. Eaton, 2020/09/18
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Fernando, 2020/09/18
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Guillaume, 2020/09/18
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, John W. Eaton, 2020/09/19
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Fernando, 2020/09/19
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls,
Guillaume <=
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Guillaume, 2020/09/19
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Fernando, 2020/09/19
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Fernando, 2020/09/19
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Guillaume, 2020/09/20
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Fernando, 2020/09/20
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, John W. Eaton, 2020/09/21
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, John W. Eaton, 2020/09/21
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Guillaume, 2020/09/22
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, Fernando, 2020/09/22
- [Octave-bug-tracker] [bug #58953] Error with 'end' in index expression with nested function calls, John W. Eaton, 2020/09/22