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Re^3: The best "true zero" is...

by mce (Curate)
on Jun 09, 2005 at 09:08 UTC ( #465027=note: print w/ replies, xml ) Need Help??


in reply to Re^2: The best "true zero" is...
in thread The best "true zero" is...

true, but also not true :-)

Many functions -like the execute function in DBI- return 0E0 when they want to return a result that is ment to be zero but is 'boolean' true in tests

So, indeed it is not general perl, but it is common to use 0E0 as "zero but true".

Cheers,


---------------------------
Dr. Mark Ceulemans
Senior Consultant
BMC, Belgium


Comment on Re^3: The best "true zero" is...
Re^4: The best "true zero" is...
by ambrus (Abbot) on Jun 09, 2005 at 09:13 UTC

    That's right, but the core perl uses only "0 but true", so "0E0" is not Larry's.

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