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From: st92j0gw@dunx1.ocs.drexel.edu (Chris Papademetrious)
Subject: Re: parameterless generics?
Date: 1996/07/15
Message-ID: <4sdou6$q1t@noc2.drexel.edu>#1/1
X-Deja-AN: 168841042
references: <4s48k9$3be$1@mhafn.production.compuserve.com>
organization: Drexel University
newsgroups: comp.lang.ada
Date: 1996-07-15T00:00:00+00:00
List-Id: <comp.lang.ada>


Brian Gilbert <71413.1453@CompuServe.COM> wrote:

>Does anybody have a reason to use a generic (package or 
>subprogram) without a parameter?  The language (Ada 83 at least) 
>seems to allow it, but everytime the generic is instantiated it 
>would produce an identical copy.  Comments?

 I believe if you create a child library of a generic package (pardon
my butchering of the terminology, I'm new to Ada 95), the child itself
must also be generic.  Oftentimes, the child won't need a generic
parameter of its own, only needing that of its parent, in which case
you'd get the interesting construct:

generic
package Blah is...

 This is covered in "Programming in Ada 95" by John Barnes, page 390.

>Brian Gilbert
>71413.1453@compuserve.com


-=-=-=-=-=-=-=-=-=-=-=-=-
 Chris Papademetrious
 Data Fusion Laboratory
 Drexel University
 Philadelphia, PA
-=-=-=-=-=-=-=-=-=-=-=-=-