Performance versus legibility

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Subject: Performance versus legibility
From: "Richard Birkby" <rbirkby@xxxxxxxxxxx>
Date: Fri, 24 Nov 2000 14:16:32 -0000

not(string(.))	string-length(.)=0
not(x)		count(x)=0
not(x=y)	x!=y

I always use the expressions in the second column for maintainability, but I guess the items in the first column are faster. Is my assumption correct? Are there any other performance bottlenecks in common usage?


Richard
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Current Thread
Performance versus legibility Richard Birkby - Fri, 24 Nov 2000 14:16:32 -0000 <= David Carlisle - Fri, 24 Nov 2000 14:45:00 GMT stefano debenedetti - Fri, 24 Nov 2000 16:43:40 +0100 <Possible follow-ups> Kay Michael - Fri, 24 Nov 2000 14:59:02 -0000 Kay Michael - Fri, 24 Nov 2000 15:07:34 -0000

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