[Octave-bug-tracker] [bug #42126] persistent variable is inaccessible from within a nested function

[sergey plotnikov]

URL:
  <http://savannah.gnu.org/bugs/?42126>

                 Summary: persistent variable is inaccessible from within a
nested function
                 Project: GNU Octave
            Submitted by: nul0m
            Submitted on: Tue 15 Apr 2014 05:05:05 PM GMT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

The following function works in Matlab but doesn't in Octave.


function accessPersistVarFromNested
persistent myVar
disp(myVar);
myVar = randn;
myNested;
  function myNested
    disp(myVar);
  end
end


Below is the Octave error message:


>> accessPersistVarFromNested
 0.82211
error: 'myVar' undefined near line 14 column 10
error: evaluating argument list element number 1
error: called from:
error:   /myPlace/accessPersistVarFromNested.m at line 14, column 5
error:   /myPlace/accessPersistVarFromNested.m at line 8, column 1


Matlab has no problem accessing _myVar_ when inside _myNested()_, so I'm
wondering if current Octave behavior was really meant.




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