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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?= =?utf-8?Q?=29?=
 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: Seeking for papers about tagged types vs access to subprograms
Date: Sun, 12 May 2013 11:32:13 +0200
Organization: Ada @ Home
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Xref: number.nntp.dca.giganews.com comp.lang.ada:181603
Date: 2013-05-12T11:32:13+02:00
List-Id: <comp.lang.ada>

Le Sun, 12 May 2013 11:25:51 +0200, Dmitry A. Kazakov  =

<mailbox@dmitry-kazakov.de> a =C3=A9crit:

>> Seems the invariably `True`
>> precondition wants to give the illusion of universal reuse without
>> conditions.
>
> No, "true" means what that the contract was not a lie. If you say that=
  =

> the
> argument of sqrt is Float and another person say that it is not negati=
ve,
> then somebody is lying here.

This is the same person who says both as this is the one who wrote the  =

signature and the precondition. And this is not a contradiction to have =
 =

conjunction of conditions, that's common.


-- =

=E2=80=9CSyntactic sugar causes cancer of the semi-colons.=E2=80=9D [1]
=E2=80=9CStructured Programming supports the law of the excluded muddle.=
=E2=80=9D [1]
[1]: Epigrams on Programming =E2=80=94 Alan J. =E2=80=94 P. Yale Univers=
ity