The first is a reference to an array that has every element aliased to every element of @array.

Very very true. (I was going to say if it wasnt already said...) This has some devious implications. Consider the consequences of this: 

$\="\n";
my ($x,$y,$z)=(1,2,3);
my $r=sub{ \@_ }->($x,$y,$z,$z,$y,$x);
print $r->[0]; # 1
$r->[-1]=10;
print $r->[0]; # 10

[download]
So personally I wouldnt use this approach at all (for this anyway). Theres waaaay too much chance that somebody would come along and morph the code without understanding the deeper implications and then run around screaming about bizarre bugs.

--- demerphq
my friends call me, usually because I'm late....

In reply to Re: Re: Re: Re: Non-destructive array processing by demerphq
in thread Non-destructive array processing by Juerd

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