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From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: Re: Subprogram Pointer in a Generic
References: <slrnb9s6tn.hvi.sam@willow.dyn.rfc1149.net>
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Date: 2003-04-17T04:17:18+00:00
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>(1) The absence of such a rule would prevent an implementation from
>    implementing efficiently shared generic packages:
Would it be possible to do code sharing at all?
  type Young is range 1 .. 20;
  type Old is range 21 .. 120;
  package a is new generic_package(Young);
  package b is new generic_package(Old);
and inside generic_package you make a call on
Register(Local_Procedure'access);
  What is registered - the instantiation of Local_Procedure that deals
with Young or the one that deals with Old?  Extra information needs to
be passed along, but Register expects just a simple pointer.