[Octave-bug-tracker] [bug #54423] Declaring a variable global erases its value in Octave but not in Matlab

[Arnaud Delorme]

URL:
  <http://savannah.gnu.org/bugs/?54423>

                 Summary: Declaring a variable global erases its value in
Octave but not in Matlab
                 Project: GNU Octave
            Submitted by: arnodelorme
            Submitted on: Wed 01 Aug 2018 09:02:25 PM UTC
                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: 4.4.0
        Operating System: Mac OS

    _______________________________________________________

Details:

function testglobal()

    evalin('base', 'a = [1:3];');
    evalin('base','a');
    evalin('base','global a');
    evalin('base','a');
    
Running the function above in Matlab 2018a

testglobal

a =

     1     2     3

Warning: The value of local variables may have been changed to match the
globals.  Future versions of MATLAB will require that you declare a variable
to
be global before you use that variable. 
> In testglobal (line 5) 

a =

     1     2     3

Running the function above in Octave 4.4.0

testglobal
a =

         1         2         3

a = []






    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?54423>

_______________________________________________
  Message sent via Savannah
  https://savannah.gnu.org/