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From: mfeldman@seas.gwu.edu (Michael Feldman)
Newsgroups: comp.lang.ada
Subject: Re: Why don't large companies use Ada?
Date: 8 Dec 1994 22:16:09 -0500
Organization: George Washington University
Message-ID: <3c8i5p$f59@felix.seas.gwu.edu>
References: <3bcntp$dgj@gnat.cs.nyu.edu> <3btgfs$m8c@felix.seas.gwu.edu>
 <D0DDov.Lyn@alsys.com> <3c6ofm$50v@gnat.cs.nyu.edu>
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Date: 1994-12-08T22:16:09-05:00
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In article <3c6ofm$50v@gnat.cs.nyu.edu>, Robert Dewar <dewar@cs.nyu.edu> wrote:
>Keith, the array conversion case is really not a special one. In general
>an array conversion may involve a massive and possibly complex copy, and
>most compilers will just generate a loop to do the copy, which handles
>all possible cases, including the swapping of indices.
>

Interesting discussion here. Let me play devil's advocate. Under what 
circumstances will an engineer writing new Ada to interface with
Fortran want to do this sort of array conversion? It seems to me that
almost all arrays likely to be passed as parameters to Fortran would be of
one or a few types declared as Fortran-friendly using pragma Convention.

Indeed, which arrays would such engineers _not_ wish to make 
Fortran-friendly?

I agree that the array conversion might be complex, but

(1) not more so than manually generating a transpose, and
(2) not used much, by the argument above.

Am I on the right track?

Mike Feldman