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Date:         Mon, 18 Dec 2000 17:55:10 -0700
Reply-To:     Jack Hamilton <JackHamilton@FIRSTHEALTH.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Jack Hamilton <JackHamilton@FIRSTHEALTH.COM>
Subject:      Re: Division by missing (Zero).
Content-Type: text/plain; charset=us-ascii

<kmself@IX.NETCOM.COM> wrote:

>This is far and away the preferable way to deal with these sorts of >issues. The post recently about batch-submitting a series of SAS jobs >on Unix would run into issues if Schreier's advice were followed -- the >divide-by-zere (or missing) operations would result in nonzero exit >status, even if this was expected program operation.

Under OpenVMS, and presumably other reliable operating systems, division by 0 results in a note, not a warning or error, and the job ends with a normal return code.

On at least some platforms, division by zero can result in a big performance hit, so it is better to test the divisor before performing the operation.

-- Development Manager, Technical Group METRICS Department, First Health West Sacramento, California USA

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