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From: Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: Seeking for papers about tagged types vs access to subprograms
Date: Thu, 16 May 2013 10:16:43 -0700
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Date: 2013-05-16T10:16:43-07:00
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On 05/16/2013 05:45 AM, Eryndlia Mavourneen wrote:
>
> When VMS and the hardware it runs on (VAX and Alpha) were picked up by HP, HP
> dropped DEC Ada and adopted the VMS version of Gnat.

GNAT contains many features to make it compatible with DEC Ada programs that use 
implementation-dependent features of DEC Ada. An example is pragma Passive; 
others may be found by searching for "DEC Ada" in the GNAT RM. These exist 
because AdaCore received a contract to supply a version of GNAT as the VMS 
Ada-95 compiler, with the requirement that it accept all 
implementation-dependent features of DEC Ada.

I once used GNAT in Ada-83 mode as the development compiler for a system that 
was compiled using DEC Ada and run on VAX/VMS.

-- 
Jeff Carter
"I'm a kike, a yid, a heebie, a hook nose! I'm Kosher,
Mum! I'm a Red Sea pedestrian, and proud of it!"
Monty Python's Life of Brian
77