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From: sjw <simon.j.wright@mac.com>
Newsgroups: comp.lang.ada
Subject: Re: GNAT, aggregates and efficiency (Was: Use aggregates)
Date: Tue, 12 May 2009 11:57:17 -0700 (PDT)
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Date: 2009-05-12T11:57:17-07:00
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On May 12, 6:58=A0am, Jacob Sparre Andersen <spa...@nbi.dk> wrote:
> <simon.j.wri...@mac.com> wrote:
> > Someone recently found it was quicker to test an array for some
> > condition by looping through it rather than by comparing with an
> > aggregate [eg X =3D (others =3D> 0)]. I had naively assumed that GNAT
> > would just do the comparisons of the elements of X against 0, as the
> > hand-crafted loop does, rather than construct a whole array of zeros
> > on the stack and then loop through that ...
>
> With which command line arguments and aggregate sizes is this the
> case?

It was in this thread, I think:
http://groups.google.com/group/comp.lang.ada/browse_frm/thread/3737542e2ed2=
b8e1/faecd7f658a4da62?lnk=3Dgst&q=3Dadarubik#faecd7f658a4da62