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From: "J-P. Rosen" <rosen@adalog.fr>
Newsgroups: comp.lang.ada
Subject: Re: Seeking for papers about tagged types vs access to subprograms
Date: Mon, 13 May 2013 20:01:52 +0200
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Date: 2013-05-13T20:01:52+02:00
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Le 13/05/2013 19:30, Jeffrey Carter a écrit :
> All the file handling seems poorly designed. I would only have 1 file
> type (or a few, for input, output, and input-output files), for example,
> with different levels of operations on them. It seems ridiculous to have
> different File_Type's declared for Stream, Direct, and Text access to
> files.
Because you are used to poor operating systems like Unix and Windows,
where files are simply a raw bag of bytes.

In the old times, when people still knew how to write OSes (VMS...), you
had various kinds of files that were managed at OS level. A sequential
file was the logical mapping for a tape, and a direct file for a disc.

-- 
J-P. Rosen
Adalog
2 rue du Docteur Lombard, 92441 Issy-les-Moulineaux CEDEX
Tel: +33 1 45 29 21 52, Fax: +33 1 45 29 25 00
http://www.adalog.fr