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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: How to get a 2D arrays range?
Date: Sat, 21 Nov 2015 22:02:50 -0700
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Date: 2015-11-21T22:02:50-07:00
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On 11/21/2015 08:31 PM, John Smith wrote:
> 
> Of the nested for-loop, where I explicitly call out 1 .. 10, I'd like to specify 
> the range more dynamically.  How can I do this?

In ARM K.2, Language-Defined Attributes, we find

185/1
  A'Range
For a prefix A that is of an array type (after any implicit dereference), or
denotes a constrained array subtype:
186
A'Range is equivalent to the range A'First .. A'Last, except that the prefix A
is only evaluated once. See 3.6.2.

and

189/1
  A'Range(N)
For a prefix A that is of an array type (after any implicit dereference), or
denotes a constrained array subtype:
190
A'Range(N) is equivalent to the range A'First(N) .. A'Last(N), except that the
prefix A is only evaluated once. See 3.6.2.

http://www.adaic.org/resources/add_content/standards/12rm/html/RM-K-2.html

-- 
Jeff Carter
"If you think you got a nasty taunting this time,
you ain't heard nothing yet!"
Monty Python and the Holy Grail
23