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From: "Nasser M. Abbasi" <nma@12000.org>
Newsgroups: comp.lang.ada
Subject: Re: Free AMD Core Math Library (BLAS/LAPACK) + Ada
Date: Wed, 25 Jul 2012 01:13:00 -0500
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Date: 2012-07-25T01:13:00-05:00
List-Id: <comp.lang.ada>

On 7/25/2012 12:36 AM, Ada novice wrote:
> First, I am using GNAT GPL 2011 and not the 2012 version.
>  But I am adding the -gnat2012 switch as this is required or else I get:
>
> $ gnatmake -I../ada mysolve.adbgcc -c -I../ada mysolve.adb
> mysolve.adb:39:16: iterator is an Ada2012 feature
> gnatmake: "mysolve.adb" compilation error
>
....
>
> I am not convinced to think that using GNAT GPL 2011 instead of the 2012 version is
>  the culprit here.

How can you say that?

The construct

          for x of b loop  -- print solution
              real_io.PUT ( x ); new_line;
          end loop;

is Ada 2012 ONLY. It also said so in the error message.

        mysolve.adb:39:16: iterator is an Ada2012 feature

You are compiling the source code with Ada that does not understand
this construct. Hence the error

    mysolve.adb:39:21: too few subscripts in array reference

You can simply for now, change the above LOOP to use standard Ada loop
and not the new enhanced LOOP above, and all will be OK. Or use GNAT 2012
and leave the source as is.

--Nasser