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| From | Keith Thompson <kst-u@mib.org> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: The assignment for today's lesson |
| Date | 2016-11-14 09:50 -0800 |
| Organization | None to speak of |
| Message-ID | <lnk2c6j6hj.fsf@kst-u.example.com> (permalink) |
| References | (5 earlier) <o07d9c$331$2@dont-email.me> <o07ug8$bv6$1@gioia.aioe.org> <o0av7a$lkr$1@jstuckle.eternal-september.org> <o0b18v$r26$1@dont-email.me> <ac557f1b-a184-5373-15a3-44a15aa23915@verizon.net> |
"James R. Kuyper" <jameskuyper@verizon.net> writes:
> On 11/13/2016 07:42 PM, Lew Pitcher wrote:
[...]
>> If the environment uses an execution character set that does not guarantee
>> that numerics follow in the C execution characterset standard, I would guess
>> that the whole platform would induce "undefined behaviour".
>
> Not quite - "undefined behavior" is a characteristic of a program; a
> characteristic that's relevant only when using a conforming
> implementation to translate and execute the program. What you're
> describing would be a non-conforming implementation. Non-conformance
> doesn't make behavior undefined, it just means that the implementation
> fails to implement the behavior defined by the standard for such code.
To be annoyingly pedantic, "undefined behavior" is
behavior, upon use of a nonportable or erroneous program construct
or of erroneous data, for which this International Standard imposes
no requirements
The standard certainly imposes no requirements on the behavior of
non-conforming implementations, or of programs that depend on them.
On the other hand, it's a little silly to apply terms defined by the
standard to non-conforming implementations.
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
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The assignment for today's lesson "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-12 19:10 +0800
Re: The assignment for today's lesson Robert Spanjaard <spamtrap@arumes.com> - 2016-11-12 16:38 +0100
Re: The assignment for today's lesson "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-12 23:43 +0800
Re: The assignment for today's lesson Robert Spanjaard <spamtrap@arumes.com> - 2016-11-12 21:36 +0100
Re: The assignment for today's lesson "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-13 14:30 +0800
Re: The assignment for today's lesson Your Name <YourName@YourISP.com> - 2016-11-13 19:37 +1300
[OT] chat "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-13 14:40 +0800
Re: [OT] chat Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2016-11-13 08:58 +0100
Re: [OT] chat "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-13 18:46 +0800
Re: The assignment for today's lesson Robert Spanjaard <spamtrap@arumes.com> - 2016-11-13 11:25 +0100
Re: The assignment for today's lesson "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-13 18:47 +0800
Re: New assignment/homework "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-13 14:32 +0800
Re: New assignment/homework Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-13 10:05 +0000
[OT] "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-13 18:47 +0800
Re: The assignment for today's lesson Ike Naar <ike@iceland.freeshell.org> - 2016-11-13 20:48 +0000
Re: The assignment for today's lesson Robert Spanjaard <spamtrap@arumes.com> - 2016-11-13 22:29 +0100
Re: The assignment for today's lesson "James R. Kuyper" <jameskuyper@verizon.net> - 2016-11-13 16:38 -0500
Re: The assignment for today's lesson Gareth Owen <gwowen@gmail.com> - 2016-11-13 22:24 +0000
Re: The assignment for today's lesson "James R. Kuyper" <jameskuyper@verizon.net> - 2016-11-13 16:37 -0500
Re: The assignment for today's lesson Ike Naar <ike@iceland.freeshell.org> - 2016-11-14 09:39 +0000
Re: The assignment for today's lesson Jerry Stuckle <jstucklex@attglobal.net> - 2016-11-13 19:07 -0500
Re: The assignment for today's lesson Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2016-11-13 19:42 -0500
Re: The assignment for today's lesson Jerry Stuckle <jstucklex@attglobal.net> - 2016-11-13 21:47 -0500
Re: The assignment for today's lesson Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2016-11-14 10:39 -0500
Re: The assignment for today's lesson Jerry Stuckle <jstucklex@attglobal.net> - 2016-11-14 11:38 -0500
Re: The assignment for today's lesson "James R. Kuyper" <jameskuyper@verizon.net> - 2016-11-14 12:15 -0500
Re: The assignment for today's lesson Jerry Stuckle <jstucklex@attglobal.net> - 2016-11-14 16:01 -0500
Re: The assignment for today's lesson Richard Damon <Richard@Damon-Family.org> - 2016-11-13 22:25 -0500
Re: The assignment for today's lesson Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-14 12:05 +0000
Re: The assignment for today's lesson "James R. Kuyper" <jameskuyper@verizon.net> - 2016-11-14 12:14 -0500
Re: The assignment for today's lesson Keith Thompson <kst-u@mib.org> - 2016-11-14 09:50 -0800
Re: The assignment for today's lesson Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-11-14 00:42 +0000
Re: The assignment for today's lesson Jerry Stuckle <jstucklex@attglobal.net> - 2016-11-13 21:48 -0500
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