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From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: Re: Copying rows in a two dimensional array.
Date: Tue, 9 Feb 2010 06:34:59 +0000 (UTC)
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Date: 2010-02-09T06:34:59+00:00
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>>> In Ada, if you do "P(X(5..10));" procedure P can see that the
>>> lower bound is 5.  That's a break in the abstraction -- P shouldn't
>>> know or care where the string came from.
>>     For many, but not all, P.
>
>Can you give an example where P should know that its String
>parameter came from a slice, and should know the lower bound
>of that slice?  I can't think of any off the top of my head
>-- it just seems like a fundamentally broken abstraction if
>you care about the lower bound of a string.

  package Int_IO is new Ada.Text_IO.Integer_IO(Integer);
  ...
  Last := Line'first-1;
  for i in V'range loop
    Integer_IO.Get(Line(Last+1 .. Line'last), V(i), Last);
  end loop;