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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
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Newsgroups: comp.lang.ada
Subject: Re: Iterators in Ada2012
Date: Fri, 25 Nov 2011 15:20:12 +0100
Organization: Ada @ Home
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Date: 2011-11-25T15:20:12+01:00
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Le Wed, 09 Nov 2011 11:55:52 +0100, Georg Bauhaus  =

<rm-host.bauhaus@maps.futureapps.de> a =C3=A9crit:
> Me neither; though Ada.Numerics.*Random are examples of how
> to model producing elements on demand.  I imagine one can do similar
> things with task objects in order to emulate a Python style yield.
> The result, then, is a generating mechanism that does not require
> a working set in memory. I guess one could make the mechanism
> more generically useful.
>
> task body Generator is
>     Current : Value_Type;
> begin
>     loop
>        Current :=3D Produce_Next;
>        accept Next (Result : out Value_Type) do
>           Result :=3D Current;
>        end Next;
>     end loop;
> end Generator;

The good time for a question: Are coroutines planned for Ada 2020 ?


-- =

=E2=80=9CSyntactic sugar causes cancer of the semi-colons.=E2=80=9D [1]
=E2=80=9CStructured Programming supports the law of the excluded muddle.=
=E2=80=9D [1]
[1]: [Epigrams on Programming =E2=80=94 Alan J. =E2=80=94 P. Yale Univer=
sity]