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From: Robert A Duff <bobduff@shell01.TheWorld.com>
Newsgroups: comp.lang.ada
Subject: Re: index check failure - constraint error
Date: Fri, 01 Apr 2011 18:49:05 -0400
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Date: 2011-04-01T18:49:05-04:00
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Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org> writes:

> The idea that Strings always have a lower bound of 1 is quite common
> among beginners.

Whereas experts understand that it OUGHT to be true that
"Strings always have a lower bound of 1", but it isn't true.
It's a design flaw in the Ada language.

> In SPARK all Strings do have a lower bound of 1.

As they should.  It really makes things simpler.
And (could be) more efficient.

- Bob