I would like to have the scalar values of an array ref passed to a sub modified in-place. I must pass an array ref and I must modify the values in place. As you can see, the code below works fine with two different calling conventions.

my $count = 1;

sub modify {
  my $aref = $_[0];
  ${$aref->[1]}=$count++;
}

sub prelayer {
  my $aref = shift;
  modify $aref;
}

my ($x, $mod) = (666,777);

my @A = \($x, $mod);

prelayer \@A;

print $mod, $/;

prelayer [ \$x, \$mod ];

print $mod, $/;
[download]

I was wondering if something like this would work:

prelayer([ $x, $mod ]);
[download]

if I could create some sort of special magic in the called subroutines. I would like for the calling syntax to be as clean as possible and do all the dirty work in my subroutines.

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