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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Ada standard and maximum line lengths
Date: Thu, 31 Jan 2013 10:03:42 +0100
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Date: 2013-01-31T10:03:42+01:00
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On Wed, 30 Jan 2013 10:28:46 -0500, Robert A Duff wrote:

> Niklas Holsti <niklas.holsti@tidorum.invalid> writes:
> 
>> - The longest real-life identifier exhibited so far is from the Unicode
>> character names and is 73 characters.
> 
> I'd prefer not to have such built-in limits.  The fact that I've
> never seen an identifier longer than 73 characters doesn't change
> my mind.  To argue for a built-in limit of 200 characters, I think
> you have to not only argue that "nobody needs lines longer than that",
> but also argue that there is some important advantage (efficiency?
> simplicity?), which I don't see here.

An argument might be that doing so you enlarge the set of legal yet
non-compilable programs. Ideally, each legal program should be compilable.
Furthermore, a program successfully compiled by the compiler X on the
machine M, should also be compilable by the compiler Y on N.

Theoretically, limiting the identifier length (and everything else from
subprogram body size to record members number) makes sense. The actual
problem is IMO that any choice of such a limit would be arbitrary, and
there are far too many such limits to define.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de