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From: Mario Amado Alves <maa@di.fct.unl.pt>
Subject: Re: Generic package array parameter
Date: 1999/11/23
Message-ID: <Pine.LNX.4.10.9911231052200.6738-100000@lexis.di.fct.unl.pt>#1/1
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Date: 1999-11-23T00:00:00+00:00
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Looking back, I was really looking for a way to make an instatiation with
an array (of type named or not) *know* about its types (of the indexes
and/or of the cells) in a compact way, e.g. (pseudocode):

generic
  Table: array(<>, <>) of <>;
package Foo
  type Index1 is Table'Index'Type(1);
  type Index2 is Table'Index'Type(2);
  type Cell_Type is Table(Index1'First, Index2'First)'Type;
  function Example(I: Index1; J: Index2) return Cell_Type;
end;

But now I've agreed to trade compactness for safety and eficiency; the
thing has now compiled and it's working. Duff, thanks a lot. (Heaney,
perhaps sometime I take the trouble to comment back and show the world I am
not that stupid.;-)

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