[Octave-bug-tracker] [bug #38086] "clear all" does not clear variables defined on command line?

[Rik]

Update of bug #38086 (project octave):

                Severity:              3 - Normal => 2 - Minor              
                Priority:              5 - Normal => 1 - Later              

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Follow-up Comment #6:

It's not a race condition, but it is odd.  I've downgraded the severity
because this isn't really damaging to anyone.

I believe the issue is that the single line, even with semicolons, is being
evaluated in a single temporary working space.

For example, try this code:


clear all; clc; i = 20; j = 10; whos; clear all; whos ; k = 30; whos; clear
all; whos


which results in


Variables in the current scope:

   Attr Name        Size                     Bytes  Class
   ==== ====        ====                     =====  ===== 
        i           1x1                          8  double
        j           1x1                          8  double
        k           0x0                          0  unknown

Total is 2 elements using 16 bytes

Variables in the current scope:

   Attr Name        Size                     Bytes  Class
   ==== ====        ====                     =====  ===== 
        i           0x0                          0  unknown
        j           0x0                          0  unknown
        k           0x0                          0  unknown

Total is 0 elements using 0 bytes

Variables in the current scope:

   Attr Name        Size                     Bytes  Class
   ==== ====        ====                     =====  ===== 
        i           0x0                          0  unknown
        j           0x0                          0  unknown
        k           1x1                          8  double

Total is 1 element using 8 bytes

Variables in the current scope:

   Attr Name        Size                     Bytes  Class
   ==== ====        ====                     =====  ===== 
        i           0x0                          0  unknown
        j           0x0                          0  unknown
        k           0x0                          0  unknown

Total is 0 elements using 0 bytes


What is interesting is that k has not even been defined for the first
execution of 'whos' and yet it is still showing up in the symbol table.


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