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From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Newsgroups: comp.lang.ada
Subject: Re: ada lapack
Date: Sat, 18 Aug 2012 23:45:59 +0300
Organization: Tidorum Ltd
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Date: 2012-08-18T23:45:59+03:00
List-Id: <comp.lang.ada>

On 12-08-18 19:33 , Ada novice wrote:
> Yes Nasser I do remember that post of yours well. That's a pity.
> 
> I hope that someone can come up with a solution to this problem. It's
> unblievable that one has to "reinvent the wheel". Of course in the
> same program, one would want to be able to mix the lapack codes with
> those of Ada numerics seamlessly.

The problem is that Ada_Lapack is a conversion from Fortran to
Fortran-style Ada, and not a true native Ada implementation.

I wonder why Ada_Lapack needs convention-Fortran matrices, when it does
not use any Fortran code. Perhaps the reason is the frequent use in
Ada_Lapack of "for X'Address use Y", where X is an array. Yuck. But
writing a native Ada clone of LAPACK could be a lot of work, and might
need some deep understanding of how the Fortran LAPACK works.

-- 
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
      .      @       .