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Newsgroups: comp.lang.ada
Subject: Re: PAR (Was: Embedded languages based on early Ada)
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From: Ray Blaak <rAYblaaK@STRIPCAPStelus.net>
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Date: Thu, 08 Mar 2007 18:08:26 GMT
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Date: 2007-03-08T18:08:26+00:00
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"Randy Brukardt" <randy@rrsoftware.com> writes:
> A parallel subprogram would be defined by the keyword parallel. They would
> be like a normal Ada subprogram, except:
>     * Access to global variables is prohibited, other than protected
> objects, atomic objects, and objects of a declared parallel type. Note that
> this also includes global storage pools!

I understand the reason for this restriction, but fear that it is not useful
in practice. This would prevent the use of regular library calls, unless those
libraries are pure. Is that reasonable?

Hmm, maybe those libraries can be access via calls from protected objects
only?

I am wondering if this restriction makes things too onerous for the programmer
to use the library environment they have access to, especially as compared to
normal sequential programming.

-- 
Cheers,                                        The Rhythm is around me,
                                               The Rhythm has control.
Ray Blaak                                      The Rhythm is inside me,
rAYblaaK@STRIPCAPStelus.net                    The Rhythm has my soul.