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From: "G.B." <bauhaus@futureapps.invalid>
Newsgroups: comp.lang.ada
Subject: Re: function Is_Open (File : File_Type) return Boolean; :Text_io
Date: Tue, 27 Oct 2015 17:43:36 +0100
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On 27.10.15 16:26, Dmitry A. Kazakov wrote:
> How do you know if some callers would not appreciate Status_Error as
> a possible outcome?

Actually, this situation is what contracts are made for,
I think:
as a caller, you say what you want the procedure to do,
or else you don't sign this contract. I.e., a redesign
via ECR is in order before you sign.