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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: alternative elsif branch not tested
Date: Fri, 23 Feb 2018 20:53:55 +0100
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Date: 2018-02-23T20:53:55+01:00
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On 02/23/2018 08:39 PM, Mehdi Saada wrote:
> I don't understand:
> Shouldn't that line
> elsif Argument (1)'Length /= 1 or Argument(1)(ARGUMENT(1)'First) not in 'n'|'c'|'N'|'C' then ...
> cover the case where Argument(1)'Length = 0 (I suppose it's the problem) ?

"or" is a binary operator. Like all binary operators, both of its operands are 
evaluated. See ARM 4.5.1

http://www.ada-auth.org/standards/rm12_w_tc1/html/RM-4-5-1.html

-- 
Jeff Carter
"Strange women lying in ponds distributing swords
is no basis for a system of government."
Monty Python & the Holy Grail
66