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From: christoph.grein@eurocopter.com
Newsgroups: comp.lang.ada
Subject: Re: Language lawyer question: task activation
Date: Fri, 20 Feb 2009 02:34:22 -0800 (PST)
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Date: 2009-02-20T02:34:22-08:00
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On Feb 20, 11:18=A0am, Robert_Matthews <igno...@ramatthews.free-
online.co.uk> wrote:
> > =A0 =A0 task type TType is
> > =A0 =A0 =A0 =A0 entry E1;
> > =A0 =A0 end TType;
>
> > =A0 =A0 function Func return TType is
> > =A0 =A0 begin
> > =A0 =A0 =A0 =A0 return X : TType;
> > =A0 =A0 end Func;

> But isn't there another issue here: task types are limited, therefore Fun=
c
> is a constructor function, but in what object does it construct its retur=
ned

Ada 95: TType is a by-reference-type, Func returns a read-only view.
Ada 2005: Func is build-in-place.

In both cases, the returned object is local to Do_It and disappears as
soon as Do_It returns. Of course for Do_It to be able to return, the
task has to terminate before.