--- /dev/null
+package Exim::Utils;
+use v5.10.1;
+use strict;
+use warnings;
+use parent 'Exporter';
+our @EXPORT_OK = qw(uniq numerically);
+
+
+sub uniq {
+ my %uniq = map { $_, undef } @_;
+ return keys %uniq;
+}
+
+sub numerically { $::a <=> $::b }
+
+1;