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Date: Tue, 31 Jan 2012 23:02:04 +0100
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Date: 2012-01-31T23:02:04+01:00
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Le Tue, 31 Jan 2012 19:48:19 +0100, Jeffrey Carter  =

<spam.jrcarter.not@spam.not.acm.org> a =C3=A9crit:

> On 01/30/2012 11:47 PM, J-P. Rosen wrote:
>>
>> Is this particular one useful? If you think that it is a property of
>> your subprogram that should be made explicit to the user, yes. If you=

>> think it is just a redundant property that only repeats the propertie=
s
>> of the specification, no. Really a matter of appreciation.
>
> The condition in question looks more like a precondition than a  =

> postcondition to me:
>
> with Pre =3D> S'Length in Image_Length_Type

I understand your point, but no, this is not a precondition, as the  =

condition will not raise an exception. Although an error status may be  =

returned, this error status is a legal result here.

-- =

=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