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Date: Fri, 22 Mar 2019 15:23:19 -0700 (PDT)
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Subject: Re: Intervention needed?
From: Optikos <optikos@verizon.net>
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Xref: reader01.eternal-september.org comp.lang.ada:55933
Date: 2019-03-22T15:23:19-07:00
List-Id: <comp.lang.ada>

On Friday, March 22, 2019 at 5:08:49 AM UTC-4, Dmitry A. Kazakov wrote:
> On 2019-03-22 03:30, Randy Brukardt wrote:
> 
> > I'm pretty sure the SPARK people are only interested in static checks, for
> > the obvious reason that they are only interested in static checks in
> > general.
> 
> Not only SPARK people. From practical point of view any dynamic check is 
> a lingering disaster, added complexity and, in general, a lie.
> 
> With dynamic checks you write code as if there were no branches in it, 
> ignoring the fact that the code branches at all places where the check 
> occurs.

Although Dmitry & I don't often agree, this time he speaks wisdom & truth.  The mathematical proof of no-leak, no-incorrect-pointer-arithmetic pointer-correctness must be 100% static (at compile-time) to be useful.