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From: "robin" <robin_v@bigpond.com>
Newsgroups: comp.lang.ada,comp.lang.fortran,comp.lang.pl1
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Subject: Re: Ada vs Fortran for scientific applications
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Date: Sat, 27 May 2006 14:29:34 GMT
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Date: 2006-05-27T14:29:34+00:00
List-Id: <comp.lang.ada>

"Martin Krischik" <krischik@users.sourceforge.net> wrote in message
news:1319222.cHklMpk1fa@linux1.krischik.com...
> robin wrote:
>
> > "Ed Falis" <falis@verizon.net> wrote in message
> > news:op.s92jl8t85afhvo@dogen...
> >> On Wed, 24 May 2006 14:34:58 -0400, Gordon Sande
> >> <g.sande@worldnet.att.net> wrote:
> >>
> >> > The urban legends have the Fortran error of a DO loop that changed into
> >> > an assignment because of a typo changing a comma into a period and
> >> > a satellite was lost. For Ada it is a tossed interrupt that caused a
> >> > launch failure. Bad practice of one will always be inferior to good
> >> > practice of the other.
> >>
> >> In the Ariane 5 case, it wasn't the language, but mismanagement in
> >> applying software appropriate to a launcher with different flight
> >> parameters to a new one without review.
> >
> > That wasn't the case.  The code was reviewed,
> > and it was decided that the particular conversion
> > didn't require a check for overflow (even though
> > similar conversions in the vicinity had protection).
>
> The review was only done for the Ariane 4 rocket.

The report specifically states that the code was reviewed
for Ariane 5, as I just described.