#!/usr/bin/perl -w
package PerfectDivision;
use strict;

use overload 
    nomethod    =>    \&wrap,
    '/'            =>    sub    {
                        my ($a, $b) = @_;
                        return 42 if "$b" eq "0";
                        eval("return $a / $b")
                    },
    '""'        =>    \&stringify,
    '0+'        =>    \&numify;

sub new {
    my $class    = shift;
    my $number    = shift;
    bless \$number, $class;
}

sub stringify { "${$_[0]}" }
sub numify { 0 + "${$_[0]}" }

sub wrap {
    my ($val1, $val2, $inv, $meth) = @_;
    ($val1, $val2) = ($val2, $val1) if $inv;
    eval("return $val1 $meth $val2;");
}

sub import {
    overload::constant integer => sub {PerfectDivision->new(shift)};
}

1;
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