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From: "Jeffrey R. Carter" <ggsub@pragmada.x10hosting.com>
Newsgroups: comp.lang.ada
Subject: Re: for S'Image use Func??
Date: Tue, 11 May 2010 10:38:44 -0700 (PDT)
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Date: 2010-05-11T10:38:44-07:00
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On May 10, 1:52=A0pm, Warren <ve3...@gmail.com> wrote:
>
> I was aware of that, and not really sure if I saved anything
> (I didn't check) by doing it myself. But I knew I didn't
> care about the right trim etc. =A0I wouldn't be surprised
> if something buried in the libraries uses it anyway, so
> perhaps I should use it also.

Did you save anything? Let me pull out my well worn copy of /Software
Tools/, by Brian W. Kernighan and P. J. Plauger, Addison-Wesley, 1976.
(Bear in mind that these are C guys.)

"Most of the time programmers have no real idea where time is being
consumed by a program. Consequently nearly all the effort expended
(...) for 'efficiency' is wasted. We have found that the best way to
avoid too-early optimization is to make a regular practice of
in[s]trumenting code."

"Algorithm and data structure changes are by far the most effective
way to improve performance."

The general rule is not to rewrite existing functionality unless your
system does not meet its timing requirements with the existing
operation, and measurement shows that the existing operation is
causing the failure to meet the timing requirements. It is clear ("I
didn't check") that this is not the case here.

So, did you "save" anything? No, you not only didn't save anything,
you wasted your effort by writing and testing code that duplicates
existing functionality, that you were aware of, for no reason.