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Newsgroups: comp.lang.ada
Date: Tue, 9 Jul 2013 08:21:02 -0700 (PDT)
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Subject: Re: The future of Spark . Spark 2014 : a wreckage
From: Adam Beneschan <adam@irvine.com>
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Xref: news.eternal-september.org comp.lang.ada:16216
Date: 2013-07-09T08:21:02-07:00
List-Id: <comp.lang.ada>

On Tuesday, July 9, 2013 12:34:59 AM UTC-7, Stefan...@uni-weimar.de wrote:

> Actually, this has been irritating me when using named notation for out=
=20
> parameters, since I have learned Ada. If Y is an out parameter, it should=
=20
> be Do_Something (X <=3D Y), shouldn't it?

<=3D already has another meaning, so that wouldn't work.  As some of us hav=
e pointed out before, an early version of Ada did have different symbols; i=
nstead of the arrow, =3D>, it used =3D: for IN parameters, :=3D for OUT par=
ameters, :=3D: for IN OUT parameters.  I don't really know why this idea wa=
s dropped before Ada 83 was finalized.  I'm beginning to think it should ha=
ve been left in.  Especially now that [IN] OUT parameters are allowed in fu=
nction calls; I've been big on the idea of providing some syntax for a func=
tion call that would let the reader know that the call might be changing on=
e of the parameters.

                            -- Adam