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From: "G.B." <bauhaus@futureapps.invalid>
Newsgroups: comp.lang.ada
Subject: Re: function Is_Open (File : File_Type) return Boolean; :Text_io
Date: Fri, 30 Oct 2015 15:32:16 +0100
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Xref: news.eternal-september.org comp.lang.ada:28138
Date: 2015-10-30T15:32:16+01:00
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On 30.10.15 09:39, Dmitry A. Kazakov wrote:
> The concern is safe design. If [program] B has bugs it cannot be
 > relied on to determine if it has them.

Uhm, so what?  Which kind of program is relied upon to determine
if it has bugs or not? Would that be a bug free self-debugging
program?

OTOH, what if we can learn about potential bugs because we happen
to think that a failed expression has exactly that potential
for us? Detecting a false positive needs to be assessed empirically.
TTBOMK, assertions failed have so far lead to improvement of
programs.