in reply to Which, if any, is faster?

in addition to what the others already stated, there is a means of speeding up your own code as well:
1.) always pass data structures by reference, not by value!
2.) if you got a hashref, there's no need for iterating over all its keys, alike for an arrayref.
sub new {
   my ($class, $params) = @_;
   my $self = $params;
   bless $self, $class;
}

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i rather bet that benchmarking our both codes will show the difference between them.

language is a virus from outer space.

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Re^2: Which, if any, is faster?
by PetaMem (Priest) on Jun 01, 2005 at 15:03 UTC
    And while we are at it, a 
    sub xx {
my $var1 = shift;
my $var2 = shift;
...

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    is faster than 
    sub xx {
my ($var1,$var2) = @_;
...

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    It also gives you the oportunity for better comments and I personally feel more safe if crunching @_ instead of copying and leaving it untouched.

    Bye
     PetaMem         All Perl:   MT, NLP, NLU

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