[Octave-bug-tracker] [bug #40938] interaction among eval, anonymous function, and functions

[Felipe G. Nievinski]

URL:
  <http://savannah.gnu.org/bugs/?40938>

                 Summary: interaction among eval, anonymous function, and
functions
                 Project: GNU Octave
            Submitted by: fgnievinski
            Submitted on: Tue 17 Dec 2013 02:19:29 PM GMT
                Category: Interpreter
                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: Microsoft Windows

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Details:

This works in Matlab but doesn't in Octave:

function doit_bad ()
  pi2 = pi;  get2 = @(var) eval([var,'2']);  get2('pi')
end

In the base workspace (i.e., entered in the terminal), that line statement
doesn't work in Matlab nor in Octave.

In contrast, this version works in all combinations of Matlab/Octave and
within-function/base-workspace:

function doit_good ()
  pi2 = pi;  get2 = @(var) evalin('caller', [var,'2']);  get2('pi')
end

So it seems there's some interaction among eval, anonymous function, and
functions.



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File Attachments:


-------------------------------------------------------
Date: Tue 17 Dec 2013 02:19:29 PM GMT  Name: doit_good.m  Size: 99B   By:
fgnievinski

<http://savannah.gnu.org/bugs/download.php?file_id=29987>
-------------------------------------------------------
Date: Tue 17 Dec 2013 02:19:29 PM GMT  Name: doit_bad.m  Size: 86B   By:
fgnievinski

<http://savannah.gnu.org/bugs/download.php?file_id=29988>

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