Dear Monks,

I given the two scripts below. the two scripts will give the same output. But in the first one, I used pass by reference and the second, I used "local".
#### Script 1 : ##### 

#!/usr/bin/perl -w
use strict;
&foo1;

sub foo1
{
    my $first=1;
    &foo2(\$first);
    print "$first\n";
}

sub foo2
{
    my $second=shift;
    print "$$second\n";
    $$second++;
}

[download]

#### Script 2 : ##### 


#!/usr/bin/perl -w
use strict;
use warnings;

&foo1;

sub foo1
{
    local $b=1;
    &foo2;
    print "$b\n";
}


sub foo2
{
    print "$b\n";
    $b++;
}

[download]

My doubt is that which program is more efficient ? Whether we can use "local" instead of "pass by reference" ?


Hoping for the reply.

  Bipin Balan

In reply to using local and pass by reference method by bipinbalan

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