Hi,

I'm working on a script which has the following function:

sub mutate() {
        my $self = shift;
        # my $strength = shift || 2;
        my($i, $p1, $p2, $c1, $c2);

        my $my_astr = $self->astr();   

        # Get $strength (2) positions and flip the characters
        $c1 = substr($my_astr, $p1 = int rand(length($my_astr)), 1);
        $c2 = substr($my_astr, $p2 = int rand(length($my_astr)), 1);

        substr($my_astr, $p1, 1, $c2);
        substr($my_astr, $p2, 1, $c1);
        
        return $self->astr($my_astr);
}

[download]

As you can see, it flips two characters in a string within its class
Since this is a function which will be called many times,
I was wondering if there isn't a faster way to do this.

Also, how would one go about flipping more than 2 characters
at a time (4, 6, 8, ...)?

Thanks.

In reply to character flipping by ar0n

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