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From: "Peter C. Chapin" <pcc482719@gmail.com>
Subject: Re: Processing array subsections, a newbie question.
Newsgroups: comp.lang.ada
Date: Sun, 13 Jun 2010 10:01:20 -0400
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Date: 2010-06-13T10:01:20-04:00
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Gene wrote:

> Yes!  Or save a line with
> 
> loop
>    Do_Something(Buffer, Index_Fst, Index_Lst, Ok);
>    exit when not Ok or Index_Fst = Buffer'Last;
>    Index_Fst := Index_Lst + 1;
> end loop;
> 
> Loop exit (with optional naming, which obviates the problems of
> 'break' in C and its successors) is one of the small beauties of Ada...

Thanks for the suggestion (by you and others) for using a loop exit. SPARK has
some restrictions on how 'exit' can be used; I'm not sure if they will apply
to my case or not, but I can look into it. In my case there is also a state
machine involved and the exiting would have to take place inside a case
statement inside the loop. I seem to recall that SPARK has an issue with
exiting from nested control structures but I can experiment.

Peter