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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Ada Popularity: Comparison of Ada/Charles with C++ STL (and Perl)
Date: Mon, 27 Sep 2004 10:29:25 +0200
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On Fri, 24 Sep 2004 20:10:36 GMT, Frank J. Lhota wrote:

> "Matthew Heaney" <mheaney@on2.com> wrote in message 
> news:41547dae$0$91007$39cecf19@news.twtelecom.net...
>> Note that (as Randy alluded to) there's still a chance the ARG will add
>> something like reference types to Ada.  It would be declared something 
>> like:
>>
>>   function Update_Element
>>     (Container : in Map;
>>      Key         : in  Key_Type) return access Element_Type;
>>
>> Then you could say:
>>
>>   Update_Element (M, K).all := 42;
> 
> I still like the idea of adding "()" and "():=" operators to Ada.

"():=" could be problematic in Y(I).Foo(Baz):=Bar. I think it should better
be an in-place "()" and ":=".

> Then you could say:
> 
>     M(K) := 42;
> 
> This is clearer, and it makes absolutely no assertions as to how containers 
> represent their elements.

Yes. And I agree with Randy Brukardt, that a library should avoid using
access types.

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