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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: Question about Spark_IO
Date: Wed, 11 Apr 2012 16:35:16 +0200
Organization: Ada @ Home
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Date: 2012-04-11T16:35:16+02:00
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Le Mon, 09 Apr 2012 00:07:48 +0200, Peter C. Chapin <PChapin@vtc.vsc.edu=
>  =

a =C3=A9crit:

> I'm doing something like this to close a file using Spark_IO
>
>     Spark_IO.Close(Input, Input_Status);
>     if Input_Status /=3D Spark_IO.Ok then ...
>
> The Examiner says there is a flow error with the first line because th=
e  =

> assignment to Input is "ineffective." This is because it is an 'in out=
'  =

> parameter and nothing is being done with the returned value.
May be SPARK should have a notion of final state. This could be explicit=
,  =

which would be cleaner than locally disabling control flow.

-- =

=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