use Devel::Peek;

my $x = 42;
my $y = \$x;

Dump $y;

__END__
SV = RV(0x63fde0) at 0x604fc0
  REFCNT = 1
  FLAGS = (PADBUSY,PADMY,ROK)
  RV = 0x604fa0                     <---
  SV = IV(0x62de60) at 0x604fa0
    REFCNT = 2
    FLAGS = (PADBUSY,PADMY,IOK,pIOK)
    IV = 42

[download]

I'd call it an address.  But in contrast to a C pointer, a Perl reference also maintains other info, and doesn't allow you to directly fiddle with the address.

(Note that the SV ... at 0x604fa0 is not part of the reference itself — Devel::Peek just dumps the referenced target, too, for convenience.)

In reply to Re: What's in a Reference? by almut
in thread What's in a Reference? by Xiong

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