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From: "Grein, Christoph" <christoph.grein@eurocopter.com>
Newsgroups: comp.lang.ada
Subject: Re: On functions and access types.
Date: Thu, 27 Jun 2002 09:36:32 +0200 (MET DST)
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Date: 2002-06-27T09:36:32+02:00

> function Pop(S : in Stack) return Item is
> 	X : Item;
> begin
> 	X := S.Value
> 	S := S.Next;
> 	return X;
> end Pop;
> 
> Now the compiler tells me that I cannot assign to an 'in' parameter.

Others have commented on 'in'. So if you change this into a procedure, watch out 
for garbage you're going to produce:

  S := S.Next;

Hint: Unchecked_Deallocation