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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: List of Negative Language rules?
Date: Sun, 05 Aug 2012 18:33:07 +0200
Organization: Ada @ Home
Message-ID: <op.wiktlhg3ule2fv@douda-yannick>
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Date: 2012-08-05T18:33:07+02:00
List-Id: <comp.lang.ada>

Le Sun, 05 Aug 2012 16:39:42 +0200, Patrick  =

<patrick@spellingbeewinnars.org> a =C3=A9crit:

> This post is not a complaint and I hope it won't generate complaints  =

> about the language, it is a request for help in organizing language  =

> constructs.
>
> Ada is a feature rich language but as we know it is neither trivial to=
  =

> learn or even more so,  trivial to write a compiler for.
>
> One thing I am having a hard time with are all the negative rules. I a=
m  =

> NOT complaining about any of these but some very simple examples:
>
> Pre-Ada 2012 functions cannot take in parameters

Or the other way: Post-Ada 2005 functions can get out parameters. That  =

would be less an issue if they was a way to remind at call places, what =
 =

the status of a parameter is. There use to be some proposals at  =

comp.lang.ada, but none reached the formal proposal process. Prior to Ad=
a  =

2012, looking at a function invocation, you were rather sure parameters =
 =

were not modified, except indirectly if you passed it a access to  =

something, and this certainty existed only for functions, now it's gone =
 =

and that's now less easy to trust what you see.

P.S. You've made a typo in your sentence. You probably wanted to say  =

=E2=80=9CPre-Ada 2012 functions cannot take out parameters=E2=80=9D

-- =

=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