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Subject: Re: Tests in a software release
From: Robert Eachus <rieachus@comcast.net>
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Xref: feeder.eternal-september.org comp.lang.ada:48936
Date: 2017-11-16T09:02:16-08:00
List-Id: <comp.lang.ada>

On Saturday, October 28, 2017 at 3:35:21 AM UTC-4, Dmitry A. Kazakov wrote:
> On 2017-10-28 08:53, G.B. wrote:
> > On 27.10.17 20:54, Dmitry A. Kazakov wrote:
> >> The contract requires Constraint_Error propagation.
> >=20
> > Checks require Constraint_Error propagation.
>=20
> Checks ensure Constraint_Error as a part of implementation.

It is worth remembering that there are checks for conditions which do not r=
aise Constraint_Error.  I actually used a Suppress for elaboration checks o=
nce.  ;-)  There was a call in a function body that could only occur after =
elaboration was complete, but the compiler couldn't find a valid elaboratio=
n order without the Suppress.  It has been decades, so I can't remember the=
 details.

On a related issue, the need for gotos seems to be limited to implementatio=
ns of finite state machines (FSMs).  I guess I could write a program that w=
ould generate goto-less code for deterministic FSMs, For non-deterministic =
FSMs, I guess the way to go would be to turn them into deterministic FSMs. =
 Maintaining such code would be next to impossible.