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Re: Restricted unsigned integer range would have been better?

From	"Ansel" <tinker454@trytospammenowloser.com>
Newsgroups	comp.lang.c
Subject	Re: Restricted unsigned integer range would have been better?
Date	2012-07-24 21:53 -0600
Organization	Aioe.org NNTP Server
Message-ID	<junqmr$7mk$1@speranza.aioe.org> (permalink)
References	<juiuqb$rau$1@speranza.aioe.org> <2d5917c0-6c09-4c23-8672-d9aed340d1ea@l5g2000vbo.googlegroups.com> <julesm$ke9$1@speranza.aioe.org> <31ad2cd9-c1b9-4b92-b7bd-5ff84b03fa0a@x21g2000vbc.googlegroups.com>

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"christian.bau" <christian.bau@cbau.wanadoo.co.uk> wrote in message 
news:31ad2cd9-c1b9-4b92-b7bd-5ff84b03fa0a@x21g2000vbc.googlegroups.com...
On Jul 24, 7:19 am, "Ansel" <tinker...@trytospammenowloser.com> wrote:
> > >"christian.bau" <christian....@cbau.wanadoo.co.uk> wrote in message

> > >I'm curious to see an example, which you surely will post.
> >
> > Well the obvious one is that you could assign the negative of any 
> > unsigned
> > int to an int without a care.

Talking-back to myself: But you shouldn't be doing that anyway probably.

>
> Wow. What a big advantage.

It seems to be a "hack-thing" (in a bad way) to be doing anyway.

> Now what about assigning the positive value of any unsigned int to an
> int? Because that doesn't work.

Why wouldn't it?

>
> But actually, you f***ed it up completely.
> Operations with unsigned int are performed modulo (UINT_MAX + 1).

That is *one* type of integer, yes. Maybe "my" idea cannot be evaluated or 
had in isolation, but rather must be analyzed in the context of type system 
as a whole. I have a feeling that the whole discussion is about to become 
moot -- in favor of nixing arithmetic unsigneds altogether.

>
> If you have an unsigned int
>
>     unsigned int u = 1;
>
> then the negative (-u) or -1u is _always_ UINT_MAX, which is equal to
> the numerical value of -INT_MIN which is usually one greater than
> INT_MAX. Surprise, surprise.

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Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-23 01:32 -0600
Re: Restricted unsigned integer range would have been better? "christian.bau" <christian.bau@cbau.wanadoo.co.uk> - 2012-07-23 01:45 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-24 00:19 -0600
Re: Restricted unsigned integer range would have been better? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-07-24 11:25 +0100
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-24 16:22 -0600
Re: Restricted unsigned integer range would have been better? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-07-25 01:53 +0100
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-24 21:43 -0600
Re: Restricted unsigned integer range would have been better? "christian.bau" <christian.bau@cbau.wanadoo.co.uk> - 2012-07-24 16:29 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-24 21:53 -0600
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-07-24 23:24 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-25 01:12 -0600
Re: Restricted unsigned integer range would have been better? Nobody <nobody@nowhere.com> - 2012-07-23 10:37 +0100
Re: Restricted unsigned integer range would have been better? Andre <lodwig@pathme.de> - 2012-07-23 11:46 +0200
Re: Restricted unsigned integer range would have been better? "BartC" <bc@freeuk.com> - 2012-07-23 11:33 +0100
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-23 23:48 -0600
Re: Restricted unsigned integer range would have been better? "BartC" <bc@freeuk.com> - 2012-07-24 10:43 +0100
Re: Restricted unsigned integer range would have been better? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-07-24 02:58 -0700
Re: Restricted unsigned integer range would have been better? "BartC" <bc@freeuk.com> - 2012-07-24 12:04 +0100
Re: Restricted unsigned integer range would have been better? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-07-24 05:32 -0700
Re: Restricted unsigned integer range would have been better? "BartC" <bc@freeuk.com> - 2012-07-24 14:20 +0100
Re: Restricted unsigned integer range would have been better? "BartC" <bc@freeuk.com> - 2012-07-24 18:41 +0100
Re: Restricted unsigned integer range would have been better? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-07-24 12:37 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-24 16:15 -0600
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-24 16:05 -0600
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-07-24 23:28 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-25 01:13 -0600
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-07-25 01:26 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-25 05:43 -0600
Re: Restricted unsigned integer range would have been better? David Brown <david@westcontrol.removethisbit.com> - 2012-07-24 15:10 +0200
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-24 16:23 -0600
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-07-24 23:40 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-25 01:32 -0600
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-07-25 01:29 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-25 05:45 -0600
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-07-25 12:35 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-26 00:12 -0600
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-07-26 01:42 -0700
Re: Restricted unsigned integer range would have been better? David Brown <david@westcontrol.removethisbit.com> - 2012-07-25 09:31 +0200
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-25 06:28 -0600
Re: Restricted unsigned integer range would have been better? David Brown <david@westcontrol.removethisbit.com> - 2012-07-25 16:28 +0200
Re: Restricted unsigned integer range would have been better? "BartC" <bc@freeuk.com> - 2012-07-25 17:17 +0100
Re: Restricted unsigned integer range would have been better? David Brown <david@westcontrol.removethisbit.com> - 2012-07-26 12:07 +0200
Re: Restricted unsigned integer range would have been better? "BartC" <bc@freeuk.com> - 2012-07-26 14:06 +0100
Re: Restricted unsigned integer range would have been better? James Kuyper <jameskuyper@verizon.net> - 2012-07-26 09:45 -0400
Re: Restricted unsigned integer range would have been better? David Brown <david@westcontrol.removethisbit.com> - 2012-07-30 09:01 +0200
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-26 00:09 -0600
Re: Restricted unsigned integer range would have been better? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-07-26 00:52 -0700
Re: Restricted unsigned integer range would have been better? pete <pfiland@mindspring.com> - 2012-07-26 20:35 -0400
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-26 22:35 -0600
Re: Restricted unsigned integer range would have been better? pete <pfiland@mindspring.com> - 2012-07-27 09:19 -0400
Re: Restricted unsigned integer range would have been better? Les Cargill <lcargill99@comcast.com> - 2012-07-27 12:51 -0500
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-07-27 16:19 -0700
Re: Restricted unsigned integer range would have been better? Les Cargill <lcargill99@comcast.com> - 2012-07-27 18:47 -0500
Re: Restricted unsigned integer range would have been better? David Brown <david@westcontrol.removethisbit.com> - 2012-07-30 09:10 +0200
Re: Restricted unsigned integer range would have been better? Philip Lantz <prl@canterey.us> - 2012-07-31 17:26 -1000
Re: Restricted unsigned integer range would have been better? pete <pfiland@mindspring.com> - 2012-08-01 00:18 -0400
Re: Restricted unsigned integer range would have been better? "io_x" <a@b.c.invalid> - 2012-08-01 10:19 +0200
Re: Restricted unsigned integer range would have been better? David Brown <david@westcontrol.removethisbit.com> - 2012-08-01 10:09 +0200
Re: Restricted unsigned integer range would have been better? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-08-01 12:51 +0100
Re: Restricted unsigned integer range would have been better? pete <pfiland@mindspring.com> - 2012-08-01 08:18 -0400
Re: Restricted unsigned integer range would have been better? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-08-01 14:22 +0100
Re: Restricted unsigned integer range would have been better? pete <pfiland@mindspring.com> - 2012-08-01 09:57 -0400
Re: Restricted unsigned integer range would have been better? pete <pfiland@mindspring.com> - 2012-08-01 11:35 -0400
Re: Restricted unsigned integer range would have been better? Tim Rentsch <txr@alumni.caltech.edu> - 2012-09-07 11:43 -0700
Re: Restricted unsigned integer range would have been better? pete <pfiland@mindspring.com> - 2012-09-08 10:13 -0400
Re: Restricted unsigned integer range would have been better? Philip Lantz <prl@canterey.us> - 2012-09-22 23:39 -0700
Re: Restricted unsigned integer range would have been better? Philip Lantz <prl@canterey.us> - 2012-09-22 23:45 -0700
Re: Restricted unsigned integer range would have been better? Tim Rentsch <txr@alumni.caltech.edu> - 2012-12-17 13:52 -0800
Re: Restricted unsigned integer range would have been better? Tim Rentsch <txr@alumni.caltech.edu> - 2012-12-17 13:45 -0800
Re: Restricted unsigned integer range would have been better? pete <pfiland@mindspring.com> - 2012-12-17 19:51 -0500
Re: Restricted unsigned integer range would have been better? Philip Lantz <prl@canterey.us> - 2012-12-28 11:11 -0800
Re: Restricted unsigned integer range would have been better? Tim Rentsch <txr@alumni.caltech.edu> - 2012-12-29 11:31 -0800
Re: Restricted unsigned integer range would have been better? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-12-29 23:59 +0000
Re: Restricted unsigned integer range would have been better? Tim Rentsch <txr@alumni.caltech.edu> - 2013-01-02 10:01 -0800
Re: Restricted unsigned integer range would have been better? Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2013-01-05 12:00 +0200
Re: Restricted unsigned integer range would have been better? Philip Lantz <prl@canterey.us> - 2013-01-02 13:07 -0800
Re: Restricted unsigned integer range would have been better? Tim Rentsch <txr@alumni.caltech.edu> - 2013-01-03 12:10 -0800
Re: Restricted unsigned integer range would have been better? James Kuyper <jameskuyper@verizon.net> - 2013-01-05 12:26 -0500
Re: Restricted unsigned integer range would have been better? Philip Lantz <prl@canterey.us> - 2012-09-22 23:35 -0700
Re: Restricted unsigned integer range would have been better? Tim Rentsch <txr@alumni.caltech.edu> - 2012-12-17 14:02 -0800
Re: Restricted unsigned integer range would have been better? David Brown <david@westcontrol.removethisbit.com> - 2012-08-01 10:06 +0200
Re: Restricted unsigned integer range would have been better? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-08-01 12:46 +0100
Re: Restricted unsigned integer range would have been better? Philip Lantz <prl@canterey.us> - 2012-08-02 08:19 -1000
Re: Restricted unsigned integer range would have been better? Philip Lantz <prl@canterey.us> - 2012-08-02 08:17 -1000
Re: Restricted unsigned integer range would have been better? David Brown <david@westcontrol.removethisbit.com> - 2012-08-03 08:04 +0200
Re: Restricted unsigned integer range would have been better? "io_x" <a@b.c.invalid> - 2012-08-03 09:40 +0200
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-27 22:27 -0600
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-07-28 01:31 -0700
Re: Restricted unsigned integer range would have been better? "BartC" <bc@freeuk.com> - 2012-07-28 10:52 +0100
Re: Restricted unsigned integer range would have been better? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-07-28 03:31 -0700
Re: Restricted unsigned integer range would have been better? pete <pfiland@mindspring.com> - 2012-07-28 00:05 -0400
Re: Restricted unsigned integer range would have been better? Les Cargill <lcargill99@comcast.com> - 2012-07-27 23:22 -0500
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-07-27 22:35 -0600
Re: Restricted unsigned integer range would have been better? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-08-04 08:43 -0700
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-08-04 16:40 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-08-04 22:58 -0600
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-08-04 23:10 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-08-05 01:16 -0600
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-08-05 02:25 -0700
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-08-05 03:35 -0600
Re: Restricted unsigned integer range would have been better? Keith Thompson <kst-u@mib.org> - 2012-08-05 12:16 -0700
Re: Restricted unsigned integer range would have been better? gazelle@shell.xmission.com (Kenny McCormack) - 2012-08-05 19:56 +0000
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-08-06 01:12 -0600
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-08-06 01:07 -0600
Re: Restricted unsigned integer range would have been better? gazelle@shell.xmission.com (Kenny McCormack) - 2012-08-05 13:33 +0000
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-08-06 01:13 -0600
Re: Restricted unsigned integer range would have been better? "Ansel" <tinker454@trytospammenowloser.com> - 2012-08-04 22:54 -0600

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