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From: "Nick Roberts" <nickroberts@adaos.worldonline.co.uk>
Newsgroups: comp.lang.ada
Subject: Re: Generics not overloadable
Date: Fri, 30 Nov 2001 22:38:04 -0000
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Date: 2001-11-30T22:38:04+00:00
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I think what Ian meant was that a generic unit can be a function, and some
functions are recursive. E.g.:

   generic
      type Number is range <>;
   function Factorial (N: in Number) return Number;

   function Factorial (N: in Number) return Number is
   begin
      if N < 0 then raise Constraint_Error; end if;
      if N < 2 then return 1; end if;
      return N * Factorial(N-1);
   end;

Here the last occurance of 'Factorial' is the use of the generic unit's name
as its current instance in order to make a recursive call upon itself.

--
Best wishes,
Nick Roberts