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From: Toshitaka Kumano <kumano@cl.cilas.net>
Newsgroups: comp.lang.ada
Subject: Re: comparing gnat/Ada95 and g77
Date: Fri, 15 Mar 2002 02:31:52 +0900
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Date: 2002-03-15T02:31:52+09:00

Dear Reinert,

Gerald Kasner wrote:
> the difference is small on my machines
> 
> ~ 28 sec for g77  (with -O3 option)
> ~ 32 sec for gnat (with -O3 -gnatp option)
> 
> The difference seems to be in the trigonometric functions, look
> in a-ngelfu.adb, Ada is more careful in these cases.

If you seek for *performance only*, giving up the numerical accuracy
provided by Ada model, you can use the thin binding to math lib, 
Ada.Numerics.Aux.

Using this should make the difference smaller, I guess...

-- 
Toshitaka Kumano