Walter, wasn't this one of the points you already made in your presentation
about differences between different Rexxes?

Not a lot of point in banging on it again -- it isn't going to change.

Mike


------
> That's the inside view.
> When I read about assingment, it says that the value of the 
> expression on the righthand side is assigned to the variable 
> on the lefthand side.
> 
> consider
> r.=0
> r.3=16
> rr.=r.
> blabla=r.
> Say 'blabla='blabla  
>      
> Walter Pachl
> 
> ---- Rick McGuire <[email protected]> schrieb:
> > It most certainly IS an assignment.  The stem variable rr. 
> is set to 
> > contain a reference to the same stem object referenced by the stem 
> > variable r.  ooRexx does not have a concept of variable 
> aliasing. This 
> > is the same assignment mechanism that allows USE ARG to work or 
> > returning a stem object from a function or method call.  I 
> don't have 
> > the reference handy right now so I can't cite chapter and 
> verse, but this is most certainly documented.
> > 
> > Rick
> > 
> > On Mon, May 25, 2015 at 7:10 AM, Walter Pachl 
> > <[email protected]>
> > wrote:
> > 
> > > In REXX version 1 of this RC-task:
> > >
> > > 
> http://rosettacode.org/wiki/Hofstadter_Figure-Figure_sequences#REXX
> > >
> > > there is this statement
> > >
> > > rr.=r.;
> > >
> > > which shows a severe incompatibility.
> > >
> > >
> > >
> > > With Regina, this program runs fine.
> > >
> > > With ooRexx it fails!
> > >
> > >
> > >
> > > The reason is that the above is NOT an assignment
> > >
> > > but it makes rr. a synonym/alias for r.
> > >
> > >
> > >
> > > I skimmed the ooRexx reference and could not find a
> > >
> > > description of this fact.
> > >
> > >
> > >
> > > Besides: This IS a bit of a surprise and what I
> > >
> > > don't quite understand what this is good for.
> > >
> > >
> > >
> > > Regards,
> > >
> > > Walter


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