I am looking to save some time when going through a large data structure, mainly I would like to have the recursive call go through c, rather than perl.

I don't know about recurion in XS (C), but you can save a little bit of time by recoding your traversal algorithm to avoid array dereferencing. Something like the following (untested): 

# object1:
sub depth{
    my $self = shift;
    my $max = 0;
    foreach my $item ( @{$self->{child}} ) {
        next if ! defined ($item);
        my $depth = $item->depth();
        $max = $depth if $depth > $max;
    }
    $self->{myDepth} = $max+1;
    return $max+1;
}

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In reply to Re: inline perl and recursion by dws
in thread inline perl and recursion by abitkin

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