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Re^5: "undef" is not NULL and what to do about it

by salva (Abbot)
on Feb 21, 2013 at 15:58 UTC ( #1019972=note: print w/replies, xml ) Need Help??

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  1. or download this
    sub data_generator {
       return maybe_unknown(@real_data); # attach maybe_unknown flag
    ...
       data_processor(data_generator);
    }
    

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