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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
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Newsgroups: comp.lang.ada
Subject: Re: Silly and stupid post-condition or not ?
Date: Fri, 03 Feb 2012 10:48:34 +0100
Organization: Ada @ Home
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Date: 2012-02-03T10:48:34+01:00
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Le Fri, 03 Feb 2012 10:12:25 +0100, Dmitry A. Kazakov  =

<mailbox@dmitry-kazakov.de> a =C3=A9crit:
> In the OP example,
> Format_Error of unspecified semantics is to be used heavily.

Format_Error as a specified semantic: Error. Which turns to disallow any=
  =

access to any parsed Instance. It means that no instance could be parsed=
  =

and the image is to be rejected for that use. It makes the function,  =

=E2=80=9Cpartial=E2=80=9D.

Or may be you are expecting some unspecified behavior or semantic ? ;)  =

(teasing)

To get back to the topic as a whole, it seems clear to me now, the  =

postcondition discussed here is finally legitimate.

-- =

=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