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From: Alfred Hilscher <Alfred.Hilscher@icn.siemens.de>
Subject: Re: GNAT: pragma Ravenscar
Date: 1999/12/02
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Date: 1999-12-02T00:00:00+00:00
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I remember the announcement of GNAT 3.12 for WinNT (by Robert Dewar),
and there the pramgma was mentioned. Thats why I think it would be
available in this version. But as I found no detailed explanation in the
documentation I'm not sure whether it is an what it does.

Florian Weimer wrote:
> The Ravenscar restrictions permit the use of a simplified run time
> environment.
> 
> The GNAT reference manual says the following (for Resticted_Run_Time,
> pragma Ravenscar is similar):
> 
> |    This set of restrictions causes the automatic selection of a
> |    simplified version of the run time that provides improved
> |    performance for the limited set of tasking functionality permitted
> |    by this set of restrictions.
> 
> But GNAT 3.12p doesn't enforce the restrictions, and the standard run
> time library is always used.  Some time ago, I browsed the compiler
> sources, and IIRC I found nothing which looks like a handler for these
> pragmas, so I think they are a no-op in the public version.