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From: emery@goldfinger.mitre.org (David Emery)
Subject: Re: Ada ad in Embedded Systems Programming stinks
Date: 8 Sep 94 08:52:30
Date: 1994-09-08T08:52:30+00:00	[thread overview]
Message-ID: <EMERY.94Sep8085230@goldfinger.mitre.org> (raw)
In-Reply-To: kst@alsys.com's message of Thu, 8 Sep 1994 06:47:13 GMT

It's my experience in porting software that the context clause ("with
list") is one of the key parts of Ada portability.  It establishes
quite clearly what any given unit depends on.  

This observation is one of the major reasons that POSIX/Ada is defined
as a set of packages, rather than one huge package.  This way, if you
see "with POSIX_Files, POSIX_IO;", you know there's a dependence on
the file system, but NOT on processes and signal handling.

				dave
--
--The preceeding opinions do not necessarily reflect the opinions of
--The MITRE Corporation or its sponsors. 
-- "A good plan violently executed -NOW- is better than a perfect plan
--  next week"                                      George Patton
-- "Any damn fool can write a plan.  It's the execution that gets you
--  all screwed up"                              James Hollingsworth
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  reply	other threads:[~1994-09-08  8:52 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CvFI4J.D5M@world.std.com>
     [not found] ` <34ecqc$b5q@source.asset.com>
     [not found]   ` <34g5v3INN6q2@phage.cshl.org>
1994-09-06 13:46     ` Ada ad in Embedded Systems Programming stinks david.c.willett
     [not found]     ` <EACHUS.94Sep6094018@spectre.mitre.org>
1994-09-08  7:04       ` Dag Bruck
1994-09-08  9:52         ` Robert I. Eachus
1994-09-08 17:12           ` Dag Bruck
1994-09-08 17:28             ` Robert I. Eachus
1994-09-22  8:51         ` Brendan WALKER
1994-09-07 22:44   ` John Goodsen
1994-09-08  6:32     ` Keith Thompson @pulsar
     [not found] ` <1994Sep1.084046.21595@sei.cmu.edu>
     [not found]   ` <344u9q$di5@gnat.cs.nyu.edu>
     [not found]     ` <347idh$15ss@watnews1.watson.ibm.com>
     [not found]       ` <1994Sep4.092729.21408@lmpsbbs.comm.mot.com>
1994-09-07 22:46         ` John Goodsen
1994-09-08  6:47           ` Keith Thompson @pulsar
1994-09-08  8:52             ` David Emery [this message]
1994-09-11  3:41       ` Michael M. Bishop
1994-09-11 12:20         ` Robert Dewar
1994-09-11 13:29           ` Robert Dewar
1994-09-12 14:03             ` Norman H. Cohen
1994-09-11 21:48           ` Erik Naggum
1994-09-11 23:47             ` Robert Dewar
1994-09-12  6:28               ` Dag Bruck
1994-09-12 12:22                 ` David Weller
1994-09-12 20:03               ` Erik Naggum
1994-09-12 19:16             ` Maarten Landzaat
1994-09-13 10:10               ` Richard A. O'Keefe
1994-09-17 12:07                 ` Fred McCall
1994-09-12 20:49         ` Mitch Gart
1994-10-13 10:51 Bob Wells #402
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