[Octave-bug-tracker] [bug #58519] anonymous function doesn't remember certain variables

[Olaf Till]

URL:
  <https://savannah.gnu.org/bugs/?58519>

                 Summary: anonymous function doesn't remember certain
variables
                 Project: GNU Octave
            Submitted by: i7tiol
            Submitted on: Sun 07 Jun 2020 10:58:40 AM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: Olaf Till
        Originator Email: 
             Open/Closed: Open
                 Release: dev
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

With Octave development revision ... (I'll post the revision later, if still
necessary, my connection to the machine with Octave broke in this moment),
there is this error:

octave:9> fieldname = "a";
octave:10> structure = struct (fieldname, 1);
octave:11> anonfunc = @ () structure.(fieldname);
octave:12> anonfunc ()
error: 'fieldname' undefined near line 1, column 1
error: called from
    @<anonymous> at line 1 column 18
octave:13> 

while in Octave-5.2, 'ans = 1' is returned, which is what I'd expect.

The issue is probably the cause of bug #57199, reported against the optim
package with some version of Octave-6.0.




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