Thank you.

So, I'd like to find a way to test if two variables are bound or not,
especially concerning their memory address.

If the address is not fixed for a lifetime, I must be able to test it in
just one cycle.
> $a.WHERE == $b.WHERE   # I expected FALSE
True

To a bound variable, I expect the same address, but to an unbounded
variable, this garbage collector behavior seams assing to the same memory
location two unbounded variables with the same value. It is right? Must
reduce memory usage but is a quiet weirdo.

On Wed, Feb 12, 2020 at 10:13 AM Elizabeth Mattijsen <l...@dijkmat.nl> wrote:

>
>
> > On 12 Feb 2020, at 13:44, Aureliano Guedes <guedes.aureli...@gmail.com>
> wrote:
> >
> > What "WHERE" should return?
> >
> > I was trying to find a method to return the memory address of some data.
> > Then I find the WHERE statement.
> > https://rosettacode.org/wiki/Address_of_a_variable#Perl_6
> > https://docs.perl6.org/language/mop#WHERE
>
> Please note that the memory address is *NOT* fixed for the lifetime of an
> object.  Garbage collection may move it to another memory location at *any*
> time.  I've therefore adapted the documentation of .WHERE to:
>
> Returns an C<Int> representing the memory address of the object.  Please
> note
> that in the Rakudo implementation of Raku, and possibly other
> implementations,
> the memory location of an object is B<NOT> fixed for the lifetime of the
> object.  So it has limited use for applications, and is intended as a
> debugging
> tool only.
>
> https://github.com/Raku/doc/commit/3e6270d197



-- 
Aureliano Guedes
skype: aureliano.guedes
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