Re: PerlHash.get_pmc_keyed of non existing key

[Gordon Henriksen]

On Thursday, August 21, 2003, at 11:50 , Leopold Toetsch wrote:

IMHO is

  $a = \$h{"a"};
  print $$a;
  $$a = "xxx\n";
  $a = $h{"a"};
  print $a;
the same as:

  new P1, .PerlHash
  set P0, P1["a"]
  print P0
  set P0, "xxx\n"
  set P2, P1["a"]
  print P2
  end
(PMCs have reference semantics[1])
Shouldn't that print "xxx" as perl5 does? I.e. store the returned 
PerlUndef in the hash. And PerlArray too.
Isn't that the job of Perl's \ operator?

perl <<'EOT'
my %hash = ();
my $temp = $hash{key};
print 'after $temp =  $hash{key}: ', exists $hash{key}? "exists\n" : 
"does not exist\n";
$temp = \$hash{key};
print 'after $temp = \$hash{key}: ', exists $hash{key}? "exists\n" : 
"does not exist\n";
EOT

Or, better, Perl's lvalue context...

—

Gordon Henriksen
[EMAIL PROTECTED]