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From: Richard D Riehle <laoXhai@ix.netcom.com>
Subject: Re: Compilers for VAX Was: Ada version of C's 'static'
Date: 1999/08/09
Message-ID: <7on41u$3rf@dfw-ixnews19.ix.netcom.com>#1/1
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References: <7n03us$862$1@nnrp1.deja.com> <3798EDE9.90B9623B@averstar.com>
  <wccr9lhnh8b.fsf@world.std.com> <1999Aug6.130439.1@eisner>
 <wcc672p6pqt.fsf@world.std.com>
Organization: Netcom
X-NETCOM-Date: Mon Aug 09 12:44:30 PM CDT 1999
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Newsgroups: comp.lang.ada
Date: 1999-08-09T12:44:30-05:00
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In article <wcc672p6pqt.fsf@world.std.com>,
	Robert A Duff <bobduff@world.std.com> wrote:

 ... deleted a bunch of stuff ... 

> ... The main point of having a C-generating Ada
>compiler is to make it easy to port -- but it's not zero work.

Not easy.  Not necessarily safe.  I just discovered that another
favorite language that emits intermediate C code fails to detect
the famous C "integer overflow" problem at run-time.  Even though
C is sometimes thought of as a "universal assembler" suitable for
"C Pass" compilers, one needs to ensure that the rigorous demands
of Ada are still satisfied.  I guess conformance (ACVC) tests are 
still useful.  Yes, Dr. Dewar, I realize that conformance testing
is not completely reliable, but it is better than a ... (fill in
your favorite metaphor).  

Richard Riehle
richard@adaworks.com
http://www.adaworks.com