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From: "John B. Matthews" <nospam@nospam.invalid>
Newsgroups: comp.lang.ada
Subject: Re: how to print an array range?
Date: Tue, 26 Jun 2012 13:05:06 -0400
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Date: 2012-06-26T13:05:06-04:00
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In article <jscnv3$9kt$1@speranza.aioe.org>,
 "Nasser M. Abbasi" <nma@12000.org> wrote:

> On 6/26/2012 10:53 AM, Georg Bauhaus wrote:
> > On 26.06.12 16:24, Nasser M. Abbasi wrote:
> >> But I wanted to see the range of
> >> the first dimension of the Matrix A below. (1..3, 1..3)
> >
> > Specify the ranges you want, for example,
> >
> > A : constant Real_Matrix (1 .. 3, 1 .. 3) :=
> >       (( 1.0,  2.0,  3.0),
> >        ( 4.0,  5.0,  6.0),
> >        ( 7.0,  8.0,  9.0));
> >
> 
> I think I am not explaining myself well.
> 
> I simply wanted to print the range itself, after
> I define a variable. using PUT().
> 
> i.e. in the above, what would one write to
> print  "1..3" for A'range(1) and "1..3" for A'range(2)?
> 
> I am not asking how to specify the range, I know that.
> but to print it, for debugging purposes.
> 
> I can't just type write put(A'range(1)). And when I write
> put(A'first(1)) it prints -2147483648.
> 
> Any way, no big deal, will figure it out.

For debugging:

Ada.Text_IO.Put_Line(A'First'Img & " " & A'Last'Img);

Which also sheds light on your previous finding:

B : Real_Matrix(A'Range(1), A'Range(2)); -- correct
B : Real_Matrix(A'Range(1), Integer'First .. Integer'First + 2);

-- 
John B. Matthews
trashgod at gmail dot com
<http://sites.google.com/site/drjohnbmatthews>