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From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Newsgroups: comp.lang.ada
Subject: Re: quantified expression with empty array?
Date: Fri, 9 Mar 2018 20:41:15 +0200
Organization: Tidorum Ltd
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Xref: reader02.eternal-september.org comp.lang.ada:50914
Date: 2018-03-09T20:41:15+02:00
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On 18-03-09 19:15 , Stephen Leake wrote:
> I ran across this question recently:
>
> If I have a quantified expression:
>
> (for some Child of Children => Predicate (Child))
>
> what is the value if Children'Length = 0?
>
> ARM 2012 4.5.8 8/4, 9/4 talk about evaluating the predicates, but in
> this case there are no predicates to evaluate.

AARM 4.5.8 adds, for a "some" expression:

9.a/3  Ramification: The expression is False if the domain contains no 
values.

-- 
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
       .      @       .