While I really, really don't endorse it, you actually can use $a as your array-name, if you use a prototyped sub to sort (see sort):
#!/usr/local/bin/perl
use strict;
use warnings;
my $a = [1, 2, 5, 7, 4];
sub mySort($$) {
my ($a,$b) = @_;
$a <=> $b;
}
print "", (sort mySort @$a), "\n";
__END__
Output:
12457
regards,
tomte
An intellectual is someone whose mind watches itself. -- Albert Camus
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