On Thu, 12 Feb 2009, Jonathan Stowe wrote:
2009/2/12 Dirk Koopman <d...@tobit.co.uk>:
Just been studying a CPAN module and I see a load of references to !0. Er,
what is that? Googling most unhelpful.
It's "Genius" for '1' :-) Please to be clubbing the perpatrator to
death with a copy of their own wit and eurdition.
It's "Genius" for 'anything but 0', I suppose it could be used to deal
with the 'zero but true' results in DBI. (ie $rows = $dbh->do("SELECT *
FROM foo") returns the number of matches or 0E0 if no rows match.
Is there a better idiom for:-
$rows = $dbh->do("SELECT *
FROM foo
WHERE baz >= 42")
if ($rows != 0) {
#do stuff
}
--
Michael
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Michael John Lush PhD Tel:44-1223 492626
Bioinformatician
HUGO Gene Nomenclature Committee Email: h...@genenames.org
European Bioinformatics Institute
Hinxton, Cambridge
URL: http://www.genenames.org
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