It looks like a bug: 
    $ perl5.6.0 -le 'print unpack "w", pack "w", 2**32'
    2082834

    $ perl5.7.2 -le 'print unpack "w", pack "w", 2**32'
    4294967296

[download]

--
John.

In reply to Re: Unpack weirdness by jmcnamara
in thread Unpack weirdness by sparky8342

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