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From: robert_dewar@my-dejanews.com
Subject: Re: Pointer Arithmetic (was: Wanted: Ada STL....)
Date: 1999/02/03
Message-ID: <799eph$7gf$1@nnrp1.dejanews.com>#1/1
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Date: 1999-02-03T00:00:00+00:00
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In article <798d2s$cce$1@nnrp1.dejanews.com>,
  adam@irvine.com wrote:
> In article <36B78CDD.1372@lanl.gov>,
> But what if the operation of stepping through the array
> isn't so neatly packaged?  Note that while I was talking
> about stepping through an array, I never said anything
> about this stepping taking place inside a single loop.

Find a real program and measure the effect, you will be
surprised how small it is in practice, and indeed I doubt
you will find anything to measure in a real program.

Yes, you can always construct an artifical benchmark that
shows something, but in practice this particular issue is
a non-issue in real programs.

The kind of program you postulate just does not occur in
practice, or occurs so seldom that the optimization effect
you are talking about is negligible.

Figuring out what really makes a difference in real
programs is not an easy task, and most people's intution
in this area is just plain wrong.

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