Re: Language feature selection

From	Don Y <blockedofcourse@foo.invalid>
Newsgroups	comp.arch.embedded
Subject	Re: Language feature selection
Date	2017-03-11 15:39 -0700
Organization	A noiseless patient Spider
Message-ID	<oa1u4t$6te$1@dont-email.me> (permalink)
References	(6 earlier) <o9pi2b$534$1@dont-email.me> <r5o5cctldnntpvk88c9k54fdkj7u731kjn@4ax.com> <o9vdsk$25c$1@dont-email.me> <ck07ccpor225bo3ovb6vntsqaqb9t8kn15@4ax.com> <oa1tm8$2o8$1@dont-email.me>

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On 3/11/2017 3:35 PM, Les Cargill wrote:
> George Neuner wrote:

>> Once you introduce heap-based closures the lifetime of closures
>> becomes indefinite: it can be *estimated* by a compiler - e.g., using
>> region analysis - but runtime GC generally is better at noticing
>> disuse in a timely fashion.  Module reference counting by the compiler
>> is no longer sufficient and must be augmented by runtime GC.
>
> IMO, this is and always will be difficult, and it's never been that
> clear to me that  simply constructing systems of frames of objects
> that are explicit in lifetime isn't more rigorous and more
> deterministic.

The problem then shifts to handling different lifetime extents.
E.g., it's not uncommon for a "program" to "run forever" (c.a.e).
At the same time, it is very possible for portions of it to "come
and go" with some frequency.

How do you address the differences in resource constrained
(regardless of the magnitude of those resources) systems and
those that are more open?  E.g., zombie processes are no big
deal on a desktop machine.  But, in a machine with tighter
constraints, you want to harvest the zombie earlier, rather
than later.

> I have also found that having all closures have the same lifetime as the main
> program/thread that owns them to not be that big of a burden.

How do you define ownership?  Does init() own the objects that it instantiates?
Does init() then need to persist beyond the cumulative lifespans of all of
those surrogates?  Does init() transfer ownership to some other entity after
instantiating it (or an object that it uses)?

> If something needs a transient lifespan, I'd be happier if it were made
> explicit and transactional.

Why not *implicit*?  Let some active entity (e.g., OS) take responsibility
for the clean-up?

> But I like the 50,000 foot view, which is declining
> in popularity.

Thread

Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-05 16:03 -0700
  Re: Language feature selection Wouter van Ooijen <wouter@voti.nl> - 2017-03-06 08:04 +0100
    Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 10:31 -0700
      Re: Language feature selection Wouter van Ooijen <wouter@voti.nl> - 2017-03-07 23:29 +0100
        Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-08 02:49 -0700
          Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-08 13:18 +0100
            Re: Language feature selection Wouter van Ooijen <wouter@voti.nl> - 2017-03-08 16:58 +0100
            Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-08 10:35 -0700
              Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-08 22:07 +0100
  Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-06 08:40 +0100
    Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-06 10:31 +0100
    Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 08:47 -0700
      Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-06 21:33 +0100
        Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 13:44 -0700
          Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-07 12:24 +0100
            Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 09:34 -0700
              Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-08 10:14 +0100
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-08 10:37 -0700
                Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-08 22:09 +0100
    Re: Language feature selection Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-03-06 22:50 +0200
      Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-07 12:31 +0100
    Re: Language feature selection rickman <gnuarm@gmail.com> - 2017-03-07 14:45 -0500
  Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-06 08:39 +0000
    Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 08:39 -0700
      Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-06 17:27 +0000
        Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 13:30 -0700
  Re: Language feature selection Dimiter_Popoff <dp@tgi-sci.com> - 2017-03-06 11:11 +0200
    Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 13:38 -0700
      Re: Language feature selection Dimiter_Popoff <dp@tgi-sci.com> - 2017-03-07 12:18 +0200
        Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 10:28 -0700
  Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-06 13:33 -0500
    Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 13:36 -0700
      Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-06 22:15 -0500
        Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-06 22:22 -0500
        Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 00:27 -0700
          Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-08 12:20 -0500
            Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-08 11:23 -0700
              Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-10 13:43 -0500
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 16:49 -0700
                Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-11 04:17 -0500
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 12:33 -0700
                Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-12 18:08 -0400
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-12 17:25 -0700
                Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-15 21:05 -0400
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-16 17:23 -0700
                Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-17 23:59 -0400
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-17 23:25 -0700
                Re: Language feature selection Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-03-18 12:05 +0200
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-18 04:04 -0700
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-18 04:39 -0700
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-18 03:55 -0700
                Re: Language feature selection upsidedown@downunder.com - 2017-03-18 16:00 +0200
                Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-11 16:35 -0600
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 15:39 -0700
  Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-06 18:59 +0000
    Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-06 12:36 -0700
  Re: Language feature selection Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2017-03-07 19:02 +0000
    Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-07 19:18 +0000
      Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-07 19:19 +0000
    Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 12:38 -0700
  Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-07 22:10 -0600
    Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-07 20:35 -0800
      Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-08 20:43 -0600
    Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-07 23:48 -0700
      Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-08 20:48 -0600
        Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-08 21:15 -0700
        Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-09 01:33 -0800
        Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-09 14:47 +0000
          Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-09 16:40 +0100
            Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-09 16:15 +0000
              Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-09 22:04 +0100
                Re: Language feature selection John Devereux <john@devereux.me.uk> - 2017-03-10 07:46 +0000
                Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-10 13:21 +0100
              Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-09 17:57 -0600
                Re: Language feature selection Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-03-10 11:16 +0200
        Re: Language feature selection Jacob Sparre Andersen <jacob@jacob-sparre.dk> - 2017-03-10 20:39 +0100
          Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-10 13:32 -0800
            Re: Language feature selection Niklas Holsti <niklas.holsti@tidorum.invalid> - 2017-03-11 14:58 +0200
              Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-13 13:02 +0100
    Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-08 10:46 +0100
      Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-08 20:33 -0600
        Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-09 11:08 +0100
          Re: Language feature selection Britt <britt.snodgrass@gmail.com> - 2017-03-09 07:04 -0800
            Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-09 16:36 +0100
              Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-09 16:11 +0000
              Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-09 12:06 -0600
              Re: Language feature selection Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2017-03-09 19:26 +0100
                Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-09 22:08 +0100
            Re: Language feature selection Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2017-03-09 19:04 +0000
              Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-09 15:34 -0700
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-09 15:40 -0700
                Re: Language feature selection Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2017-03-10 14:19 +0000
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 11:10 -0700
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 11:49 -0700
        Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-09 18:00 -0600
    Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-09 17:54 -0600
      Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-09 18:54 -0600
        Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-10 04:07 +0000
          Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-10 08:07 -0600
        Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-10 13:59 +0100
      Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-10 08:17 +0000
        Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 11:24 -0700
          Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-10 19:09 +0000
            Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 12:33 -0700
              Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-10 23:25 +0000
                Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-10 20:22 -0500
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 01:32 +0000
                Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-10 18:16 -0800
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 09:59 +0000
                Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-11 02:23 -0800
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 11:13 +0000
                Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-11 14:28 -0500
                Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-11 17:20 -0500
                Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-12 16:26 -0400
                Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-12 21:46 +0100
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-12 23:15 +0000
                Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-13 14:14 -0400
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-13 18:48 +0000
                Re: Language feature selection "Brian G. Lucas" <bagel99@gmail.com> - 2017-03-13 15:17 -0500
                Re: Language feature selection Niklas Holsti <niklas.holsti@tidorum.invalid> - 2017-03-13 23:17 +0200
                Re: Language feature selection "Brian G. Lucas" <bagel99@gmail.com> - 2017-03-13 17:27 -0500
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-13 17:10 -0700
                Re: Language feature selection Niklas Holsti <niklas.holsti@tidorum.invalid> - 2017-03-14 10:11 +0200
                Re: Language feature selection "Brian G. Lucas" <bagel99@gmail.com> - 2017-03-14 12:23 -0500
                Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-14 13:27 +0100
                Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-14 13:30 -0400
                Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-14 22:03 +0100
                Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-14 17:24 -0400
                Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-11 07:19 -0600
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 19:43 +0000
                Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-12 09:28 -0600
                Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-12 15:15 -0400
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-12 19:38 +0000
                Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-10 18:08 -0800
                Re: Language feature selection George Neuner <gneuner2@comcast.net> - 2017-03-11 04:22 -0500
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 10:02 +0000
                Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-11 02:22 -0800
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 11:07 +0000
          Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-10 14:30 -0600
            Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-10 13:37 -0800
              Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-10 16:30 -0600
                Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-10 18:14 -0800
                Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-11 07:46 -0600
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 12:53 -0700
                Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-12 09:45 -0600
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-12 11:56 -0700
                Re: Language feature selection Dimiter_Popoff <dp@tgi-sci.com> - 2017-03-12 21:05 +0200
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-12 14:40 -0700
                Re: Language feature selection Dimiter_Popoff <dp@tgi-sci.com> - 2017-03-13 00:36 +0200
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-12 17:00 -0700
                Re: Language feature selection Robert Wessel <robertwessel2@yahoo.com> - 2017-03-13 16:50 -0500
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-13 17:08 -0700
                Re: Language feature selection Robert Wessel <robertwessel2@yahoo.com> - 2017-03-13 20:51 -0500
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-13 20:31 -0700
                Re: Language feature selection Robert Wessel <robertwessel2@yahoo.com> - 2017-03-14 21:45 -0500
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-14 21:16 -0700
                Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-11 16:40 -0600
            Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 15:10 -0700
              Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-10 16:42 -0600
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 17:02 -0700
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 00:46 +0000
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 13:05 -0700
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 21:58 +0000
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 15:19 -0700
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-11 23:27 +0000
                Re: Language feature selection Walter Banks <walter@bytecraft.com> - 2017-03-10 20:14 -0600
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 12:16 -0700
        Re: Language feature selection Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2017-03-10 20:40 +0100
          Re: Language feature selection Wouter van Ooijen <wouter@voti.nl> - 2017-03-10 22:28 +0100
  Re: Language feature selection Jacob Sparre Andersen <jacob@jacob-sparre.dk> - 2017-03-10 20:03 +0100
    Re: Language feature selection Grant Edwards <invalid@invalid.invalid> - 2017-03-10 19:48 +0000
      Re: Language feature selection Jacob Sparre Andersen <jacob@jacob-sparre.dk> - 2017-03-13 21:25 +0100
    Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-10 13:03 -0700
      Re: Language feature selection Jacob Sparre Andersen <jacob@jacob-sparre.dk> - 2017-03-13 21:40 +0100
        Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-13 14:35 -0700
          Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-14 01:06 +0000
            Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-13 19:23 -0700
              Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-14 08:48 +0000
                Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-14 02:14 -0700
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-14 09:33 +0000
                Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-14 09:21 -0700
                Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-17 06:01 -0500
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-17 11:39 +0000
                Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-17 07:16 -0500
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-17 13:49 +0000
                Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-17 11:03 -0700
                Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-17 19:21 +0100
                Re: Language feature selection Paul Rubin <no.email@nospam.invalid> - 2017-03-17 11:34 -0700
                Re: Language feature selection David Brown <david.brown@hesbynett.no> - 2017-03-17 20:26 +0100
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-17 20:07 +0000
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-17 20:29 +0000
                Re: Language feature selection Les Cargill <lcargill99@comcast.com> - 2017-03-17 19:19 -0500
                Re: Language feature selection Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-03-18 08:18 +0000
            Re: Language feature selection Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2017-03-14 21:20 +0100
  Re: Language feature selection jim.brakefield@ieee.org - 2017-03-10 18:46 -0800
    Re: Language feature selection Niklas Holsti <niklas.holsti@tidorum.invalid> - 2017-03-11 15:41 +0200
      Re: Language feature selection jim.brakefield@ieee.org - 2017-03-11 14:20 -0800
        Re: Language feature selection upsidedown@downunder.com - 2017-03-12 00:54 +0200
          Re: Language feature selection jim.brakefield@ieee.org - 2017-03-12 18:08 -0700
            Re: Language feature selection upsidedown@downunder.com - 2017-03-13 23:36 +0200
          Re: Language feature selection Robert Wessel <robertwessel2@yahoo.com> - 2017-03-13 17:03 -0500
    Re: Language feature selection Don Y <blockedofcourse@foo.invalid> - 2017-03-11 14:21 -0700

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