Hi Brandon,
Just a note about your code:
On Saturday 16 October 2010 06:53:29 Brandon McCaig wrote:
> sub print_sum
> {
> my ($a, $b) = @_;
>
> print($a + $b, "\n");
> }
You should not call lexical variables "$a" and "$b" because this interferes
with the "$a" and "$b" http://perldoc.perl.org/perlvar.html variables used in
perldoc -f sort and now other functions. Reading from there:
{{{
* $a
* $b
Special package variables when using sort(), see sort. Because of this
specialness $a and $b don't need to be declared (using use vars, or our())
even when using the strict 'vars' pragma. Don't lexicalize them with my $a or
my $b if you want to be able to use them in the sort() comparison block or
function.
}}}
Regards,
Shlomi Fish
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