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From: Robert Dewar <dewar@gnat.com>
Subject: Re: Where is the elusive jump command?
Date: 2000/04/01
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In article <38E312F8.78883ACB@icn.siemens.de>,
  Alfred Hilscher <Alfred.Hilscher@icn.siemens.de> wrote:

> unfortunately, ALIASED is neccessary in most bindings to
> C-written APIs.

Much less than may programmers think. For example it is usually
much more appropriate if the C parameter is *int to define
it as in out INT on the Ada side, so that the call looks like

  p (x);           -- x need not be aliased
  p (x'access);    -- x must be aliased

I perfectly well agree that this does not cover all cases, but
in my experience of looking at a LOT of code, I often see the
wrong approach here.

But in any case, binding to C is hardly a topic that is
appropriate to people first learning the language!


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