>>My original question to Jason was clarification on *why* (--i -(-1))
>>would run faster than (i--) as it seemed to me that two calculations
per
>>loop would run slower than 1.  Since he used an expression I've never
>>seen before I figured he might might know the reasoning behind the
>>optimization.  It does in fact surprise me that this method is faster.

My only reason in suggesting that form of looping it is because it had
been discussed extensively in the past that loops of this form are
faster than other methods, so I borrowed that code from the likes of
Steve and others. I have put that loop structure into applications and
it does seem to be slightly faster to me, but maybe that's only my
perception.  I used it to loop through some large XML and it worked
great.  It may not be better, I don't have anything scientific to back
it up.  Steve is more capable to argue the point.  I didn't develop the
form, I was only using it based on suggestions of others.

If you're not doing much looping and/or calculating, it doesn't really
matter what you use.  

Jason Merrill
Bank of America 
Learning & Organization Effectiveness - Technology Solutions 
 
 
 
 
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