[Octave-bug-tracker] [bug #50591] display of class objects if assigned.

[Ernst Reissner]

URL:
  <http://savannah.gnu.org/bugs/?50591>

                 Summary: display of class objects if assigned. 
                 Project: GNU Octave
            Submitted by: ernstreissner
            Submitted on: Mon 20 Mar 2017 11:55:02 AM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: ernstreissner
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: other
        Operating System: Any

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Details:

I wrote an arithmetics for octave in java. 
This is wrapped in octave objects of class pn (polymorphic numbers)
E.g. pn(3.4) yields a number with value 3.4. 
If i just write pn(3.4) (without ';'), 
the result is ans=3.4. 
Also if i write display (pn(3.4)) which is the same. 
Nevertheless, 
if i assign 
a=pn(3.3) 
i receive an error
error: Invalid call to display.  Correct usage is:
display (a=pn(3.3))
 -- Function File:  display(NUM)


Strange enough, 
display (a=pn(3.3)) is all ok. 

I alsow would like to point out, 
that the newest octave seems 4.3.0.+ 
whereas this version is not offered in this tracker. 
Also, within that version much of it is still 4.2.1. 






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