Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.c > #104772

Re: Is this valid C?

From Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups comp.lang.c
Subject Re: Is this valid C?
Date 2017-02-26 17:41 +0000
Organization A noiseless patient Spider
Message-ID <87d1e4alzc.fsf@bsb.me.uk> (permalink)
References (11 earlier) <o8ps2n$iau$1@jstuckle.eternal-september.org> <d7d05d59-f1d0-4d55-993b-8f0552f29e0a@googlegroups.com> <o8q7s3$ru2$1@jstuckle.eternal-september.org> <1befylefw1.fsf@pfeifferfamily.net> <o8uqvo$758$1@jstuckle.eternal-september.org>

Show all headers | View raw


<snip>
... stuff about the frequently quoted "precedence and associativity
determine the order in which the operations are done" rule.

I've stayed out if this for the time being because I think my view is
slightly different to Richard's and James's and I did not want to
complicate matters.  But matters are already out of hand, so I hope that
some people will find this helpful.

There are two problems with the oft-quoted rule.  First, it's
simply wrong as stated.  There are lots of cases where it ignores the
most important element of the semantics:

  sizeof *NULL
  0 && 1/0
  0 ? 1 : 1/0

are all well-defined because the operator that, according to the "rule",
*should* be done first is not done at all.

Secondly, it's unhelpful.  Where it applies, it only makes sense in some
abstract view of expressions.  The best you can say is that in the basic
cases (where the rules is not actually wrong), an implementation must
behave *as if* the higher precedence operator is done fist.  But since
you can't tell what operations happen when, that's not a very helpful
thing to know.  Without the "as if" the rule suggests that C can't
optimise or re-order operator evaluation.  And as an explanation of the
semantics it's no better than simply explaining how precedence and
associativity can be seen as determining where parentheses go (or are
not needed depending on your preference).  It says something that is not
useful instead of something that is.

So the best explanation is that precedence and associativity are a way
to explain how the C grammar causes an expression to be parsed.  I.e. it
should be explained in textual terms: a + b + c is parsed as (a + b) + c
rather than pointlessly explaining that unhelpfully saying that the
first addition is "done before the second".

> My interpretation is supported by many reputable people and
> organizations.  For instance -

Unfortunately best practice is not always common practice.

> Purdue University:
> http://web.ics.purdue.edu/~cs240/misc/operators.html

Well, that table has several significant errors (I count three but it
depends on what you call a separate error).  The errors don't relate to
the rule, but it is obviously not a carefully prepared table.

> University of Hawaii:
> http://ee.hawaii.edu/~tep/EE160/Book/chap5/subsection2.1.4.1.html

This one really nails it's colours to the precedence mast, stating the
rule in such a clear and categorical way that the reader must conclude
that in

  0 ? 1 : 1/0

the division must be done before the ?:.  This error is corrected in
relation to && and || (right at the bottom of the page), but nothing is
said to correct the misinformation about ?:.

The author(s) go further and make another error which you avoided.  It
states that the right hand side of an assignment is evaluated first
(because, bizarrely, assignment is right associative).  I think even you
would agree that that is going too far, even taking the "as if" rule
into account.

> Microsoft: https://msdn.microsoft.com/en-us/library/2bxt6kc4.aspx

Dreadful.  It has a version of the rule that I can't interpret.  It says
"Expressions with higher-precedence operators are evaluated first", but
gives no way to determine the precedence of a general expression.  It
that goes on to make the more serious error that "The following table
summarizes the precedence and associativity (the order in which the
operands are evaluated) of C operators".  Apart from being bad writing,
that's wrong.

> And K&R.

I could not find an example of "the rule" in K&R.  I did find a counter
example which says that a compiler may reorder the evaluation of an
expression involving a commutative and associative operator, even when
parenthesised (Note: that's only true in modern C if the compiler can
prove that it makes no difference), but not the actual rule.  Many
examples are explained as I would do it by adding parentheses.  Where is
the rule stated?  (I only have K&R1.)

> And thousands of others.

Yes, you picked bad examples, but there are lots more and some must be
better than these.

> So you're saying all of those are interpreting
> the standard wrong, also?

Yes, every operator table I've seen is wrong because you can't represent
the grammar of C expressions in terms of simple precedence and
associativity.  For example,

  sizeof (int) f

appears to be (from the limited view of these tables) two 1-place prefix
operators acting on f.  The associativity rules would give the parse

  sizeof ((int) f)

but that is not correct.

The MSDN page has obviously been written by someone looking at the
grammar, because they've split off what they call typecasts (yuck) as a
separate operator from the other unary ones, as the grammar does.  But
that just makes matters worse because the extra grammar rule does not
correspond to a new precedence level.  What does it even mean to have
two 1-place prefix operators with different precedence?

But I still think an operator table is a good way to summarise the
grammar, and it is so close to being correct that it's well worth these
minor wrinkles.  But I would not make matters worse by saying anything
about order of evaluation in relation to precedence and associativity.
I'd always explain it terms of parsing.

<snip>
-- 
Ben.

Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread


Thread

Is this valid C? BartC <bc@freeuk.com> - 2017-02-18 00:43 +0000
  Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-18 02:41 +0000
    Re: Is this valid C? Philip Lantz <prl@canterey.us> - 2017-02-20 18:00 -0800
      Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-20 18:46 -0800
  Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-18 11:47 +0100
  Re: Is this valid C? Andrey Tarasevich <andreytarasevich@hotmail.com> - 2017-02-18 10:08 -0800
  Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-18 23:30 +0000
    Re: Is this valid C? jameskuyper@verizon.net - 2017-02-18 15:50 -0800
      Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-19 00:53 +0000
    Re: Is this valid C? Andrey Tarasevich <andreytarasevich@hotmail.com> - 2017-02-18 16:01 -0800
      Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-18 19:20 -0800
        Re: Is this valid C? GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-02-19 09:41 +0100
          Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-19 09:14 +0000
            Re: Is this valid C? GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-02-19 10:30 +0100
            Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-19 07:21 -0800
              Re: Is this valid C? GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-02-19 17:28 +0100
                Re: Is this valid C? "James R. Kuyper" <jameskuyper@verizon.net> - 2017-02-19 11:53 -0500
                Re: Is this valid C? GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-02-19 18:12 +0100
                Re: Is this valid C? "James R. Kuyper" <jameskuyper@verizon.net> - 2017-02-19 13:10 -0500
                Re: Is this valid C? GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-02-19 20:24 +0100
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-19 11:51 -0800
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-19 12:26 -0800
                Getting yourself killfiled (Was: Is this valid C?) gazelle@shell.xmission.com (Kenny McCormack) - 2017-02-19 21:23 +0000
        Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-19 11:23 +0000
          Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-19 07:33 -0800
          Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-19 15:35 +0000
            Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-19 19:42 +0000
            Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-19 12:04 -0800
              Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-19 20:51 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-19 22:23 +0000
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-19 14:48 -0800
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-20 00:36 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-20 09:58 +0100
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-20 09:14 -0800
                Re: Is this valid C? "James R. Kuyper" <jameskuyper@verizon.net> - 2017-02-20 12:17 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-19 23:16 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-20 00:24 +0000
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-20 00:56 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-20 01:25 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-20 11:14 +0000
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-20 14:44 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-20 15:18 +0000
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-20 15:51 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-20 16:16 +0000
                Re: Is this valid C? antispam@math.uni.wroc.pl - 2017-02-23 12:23 +0000
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-19 15:49 -0800
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-20 00:55 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-20 10:05 +0100
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-20 07:08 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-20 16:23 +0100
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-20 16:03 +0000
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-20 08:45 -0800
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-20 09:17 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-20 12:25 -0800
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-20 12:29 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-20 13:20 -0800
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-20 13:50 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-20 14:08 -0800
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-20 15:16 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-20 16:19 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-21 09:28 +0100
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-21 09:19 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-21 19:21 +0100
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-21 19:21 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-21 21:34 +0100
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-21 21:31 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-22 10:09 +0100
                Re: Is this valid C? GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-02-22 10:43 +0100
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-22 12:43 +0000
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-22 15:07 +0000
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-22 09:26 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-22 16:28 +0100
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-22 17:18 +0000
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-22 09:22 -0800
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-22 19:20 +0000
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-22 11:34 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-22 11:49 -0800
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-22 20:11 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-22 21:45 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-22 23:13 +0100
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-22 23:45 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-23 10:35 +0100
                Re: Is this valid C? GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-02-23 01:10 +0100
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-23 00:35 +0000
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-22 16:42 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-23 11:06 +0100
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-23 11:07 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-23 10:49 +0100
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-23 12:18 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-23 17:30 +0100
                Re: Is this valid C? Gareth Owen <gwowen@gmail.com> - 2017-02-23 18:48 +0000
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-23 01:52 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-23 11:37 +0000
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-23 15:11 +0000
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-23 07:36 -0800
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-23 16:49 +0000
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-23 09:04 -0800
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-23 17:09 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-23 16:14 +0000
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-23 16:51 +0000
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-23 17:39 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-22 22:57 +0100
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-22 15:31 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-22 15:46 -0800
                Re: Is this valid C? Robert Wessel <robertwessel2@yahoo.com> - 2017-02-22 18:35 -0600
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-23 00:46 +0000
                Re: Is this valid C? Robert Wessel <robertwessel2@yahoo.com> - 2017-02-22 22:39 -0600
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-23 10:57 +0000
                Re: Is this valid C? antispam@math.uni.wroc.pl - 2017-02-24 17:57 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-23 11:17 +0100
                Re: Is this valid C? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2017-02-23 19:03 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-23 20:11 +0000
                Re: Is this valid C? scott@slp53.sl.home (Scott Lurndal) - 2017-02-23 20:36 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-23 21:20 +0000
                Re: Is this valid C? antispam@math.uni.wroc.pl - 2017-02-24 18:28 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-24 18:45 +0000
                Re: Is this valid C? antispam@math.uni.wroc.pl - 2017-02-24 19:53 +0000
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-24 12:06 -0800
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-24 20:38 +0000
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-02-25 10:11 +1300
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-02-25 10:15 +1300
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-24 15:02 -0800
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-02-25 12:10 +1300
                Re: Is this valid C? Gareth Owen <gwowen@gmail.com> - 2017-02-25 10:33 +0000
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-25 13:25 -0800
                Re: Is this valid C? antispam@math.uni.wroc.pl - 2017-02-24 21:27 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-24 22:00 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-28 20:17 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-25 01:22 +0000
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-24 17:40 -0800
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-25 11:06 +0000
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-25 12:43 -0800
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-25 21:32 +0000
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-02-26 10:39 +1300
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-25 21:53 +0000
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-02-26 11:07 +1300
                Re: Is this valid C? Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2017-02-25 19:19 -0700
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-02-26 17:12 +1300
                Re: Is this valid C? antispam@math.uni.wroc.pl - 2017-02-26 00:13 +0000
                Re: Is this valid C? GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-02-24 00:56 +0100
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-24 01:19 +0000
                Re: Is this valid C? GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-02-24 03:18 +0100
                Re: Is this valid C? scott@slp53.sl.home (Scott Lurndal) - 2017-02-24 14:03 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-24 14:28 +0000
                Re: Is this valid C? GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-02-24 16:20 +0100
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-24 07:49 -0800
                Re: Is this valid C? GOTHIER Nathan <nathan.gothier@gmail.com> - 2017-02-24 17:03 +0100
                Re: Is this valid C? scott@slp53.sl.home (Scott Lurndal) - 2017-02-24 16:19 +0000
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-24 09:50 -0800
                Re: Is this valid C? scott@slp53.sl.home (Scott Lurndal) - 2017-02-24 18:48 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-24 17:25 +0100
                Re: Is this valid C? Gareth Owen <gwowen@gmail.com> - 2017-02-24 16:40 +0000
                Re: Is this valid C? scott@slp53.sl.home (Scott Lurndal) - 2017-02-24 16:50 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-25 19:52 +0100
                Re: Is this valid C? Jean-Marc Bourguet <jm@bourguet.org> - 2017-02-26 09:17 +0100
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-24 17:44 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-24 18:07 +0000
                Re: Is this valid C? scott@slp53.sl.home (Scott Lurndal) - 2017-02-24 18:45 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-24 19:56 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-25 19:58 +0100
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-24 10:01 -0800
                Re: Is this valid C? luser droog <luser.droog@gmail.com> - 2017-02-24 14:28 -0800
                Re: Is this valid C? scott@slp53.sl.home (Scott Lurndal) - 2017-02-24 16:08 +0000
                Re: Is this valid C? antispam@math.uni.wroc.pl - 2017-02-24 18:18 +0000
                Re: Is this valid C? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2017-02-25 15:37 +0000
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-21 10:56 -0800
                Re: Is this valid C? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-02-27 05:18 -0600
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-27 08:46 -0800
                Re: Is this valid C? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-02-27 11:26 -0600
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-27 13:57 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-27 14:06 -0800
                Re: Is this valid C? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-02-28 04:25 -0600
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-28 15:45 -0800
                Re: Is this valid C? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-03-01 03:46 -0600
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-01 06:30 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-03-01 16:31 +0100
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-01 08:37 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-03-01 19:02 +0100
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-01 10:49 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-03-01 21:00 +0100
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-01 14:02 -0800
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-03-01 12:28 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-01 12:17 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-07 14:53 -0800
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-03-01 09:10 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-01 09:51 -0800
                Re: Is this valid C? Nathan Wagner <nw@hydaspes.if.org> - 2017-03-02 19:44 +0000
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-03-02 12:05 -0800
                Re: Is this valid C? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-03-02 04:19 -0600
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-02 06:06 -0800
                Re: Is this valid C? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-03-02 10:16 -0600
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-02 15:32 -0800
                Re: Is this valid C? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-03-03 04:20 -0600
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-03 05:19 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-03 08:22 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-03-02 19:34 +0100
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-02 08:02 -0800
                Re: Is this valid C? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2017-03-02 10:54 -0600
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-02 16:35 -0800
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-04-16 18:30 -0700
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-01 07:52 -0800
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-20 13:53 -0800
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-20 12:58 -0800
                Re: Is this valid C? Robert Wessel <robertwessel2@yahoo.com> - 2017-02-20 17:28 -0600
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-20 16:03 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-21 09:14 +0100
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-23 05:10 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-23 07:43 -0800
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-26 07:07 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-26 09:17 -0800
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-23 08:17 -0800
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-23 09:11 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-23 09:46 -0800
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-23 09:55 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-23 10:27 -0800
                Re: Is this valid C? Ike Naar <ike@iceland.freeshell.org> - 2017-02-23 20:32 +0000
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-23 12:54 -0800
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-26 10:06 -0800
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-26 13:13 -0800
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-04-17 11:56 -0700
                Re: Is this valid C? supercat@casperkitty.com - 2017-04-17 12:32 -0700
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-26 14:36 -0800
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-04-30 08:30 -0700
                Re: Is this valid C? supercat@casperkitty.com - 2017-05-01 09:34 -0700
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-19 15:54 -0800
              Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-23 13:02 -0800
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-23 14:53 -0800
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-25 18:33 -0800
          Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-19 10:58 -0800
    Re: Is this valid C? Ike Naar <ike@iceland.freeshell.org> - 2017-02-19 09:06 +0000
      Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-19 10:53 +0000
      Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-19 09:06 -0500
        Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-19 16:25 +0000
          Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-19 11:42 -0500
            Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-19 17:45 +0000
              Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-23 11:57 -0800
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-23 21:27 +0000
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-25 05:03 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-23 13:39 -0800
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-25 17:42 -0800
              Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-23 16:41 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-24 10:04 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 08:43 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-24 14:53 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 12:57 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-24 20:04 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 15:35 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 12:37 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 16:18 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 15:21 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-24 16:09 -0800
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 17:45 -0800
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-25 14:44 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 20:08 -0500
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-02-25 14:15 +1300
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 21:48 -0500
                Re: Is this valid C? Gareth Owen <gwowen@gmail.com> - 2017-02-25 10:35 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-25 09:12 -0500
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-25 14:24 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-25 15:59 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 18:03 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 21:50 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 19:04 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 23:20 -0500
                Re: Is this valid C? Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2017-02-25 21:26 -0700
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-26 10:09 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-26 17:41 +0000
                Re: Is this valid C? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2017-02-26 12:56 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-27 00:23 +0000
                Re: Is this valid C? Jean-Marc Bourguet <jm@bourguet.org> - 2017-02-26 19:02 +0100
                Re: Is this valid C? "James R. Kuyper" <jameskuyper@verizon.net> - 2017-02-26 13:49 -0500
                Re: Is this valid C? Jean-Marc Bourguet <jm@bourguet.org> - 2017-02-26 19:55 +0100
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-26 12:05 -0800
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-27 00:52 +0000
                Re: Is this valid C? James Kuyper <jameskuyper@verizon.net> - 2017-02-26 22:01 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 10:42 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 08:51 -0500
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-27 13:59 +0000
                Re: Is this valid C? Ike Naar <ike@iceland.freeshell.org> - 2017-02-27 15:36 +0000
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-27 10:01 -0800
                Re: Is this valid C? Ike Naar <ike@iceland.freeshell.org> - 2017-02-27 18:57 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 10:47 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-27 16:35 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 15:14 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-27 21:05 +0000
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-27 21:26 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 17:12 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 17:12 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-27 23:20 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 18:45 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 00:05 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 19:48 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 02:32 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 23:27 -0500
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-02-28 17:55 +1300
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 12:23 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 05:09 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 12:27 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-28 10:06 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 13:16 -0500
                Re: Is this valid C? James Kuyper <jameskuyper@verizon.net> - 2017-03-02 15:54 -0500
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-03-03 11:26 +0100
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-03-03 10:33 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-03-03 12:30 +0100
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-03-03 11:32 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-03-03 13:48 +0100
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-03-03 12:41 +0000
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-03-03 12:47 +0000
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-03-03 12:57 +0000
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-03-03 13:12 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-03-03 13:57 +0100
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-03 05:23 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-03-03 15:58 +0100
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-03 07:13 -0800
                Re: Is this valid C? James Kuyper <jameskuyper@verizon.net> - 2017-03-03 12:53 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-03-03 19:33 +0000
                Re: Is this valid C? James Kuyper <jameskuyper@verizon.net> - 2017-03-03 21:18 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-03 21:23 -0500
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-28 19:58 +0100
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 15:21 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 21:07 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 08:22 -0500
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-28 21:09 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 08:24 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 15:23 -0500
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-28 09:01 +0100
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 12:30 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 18:05 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 13:27 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 19:01 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 15:26 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 21:13 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 08:28 -0500
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-28 20:12 +0100
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 15:38 -0500
                Re: Is this valid C? scott@slp53.sl.home (Scott Lurndal) - 2017-02-28 20:46 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 08:29 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 21:15 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 08:30 -0500
                Re: Is this valid C? Jean-Marc Bourguet <jm@bourguet.org> - 2017-02-28 23:08 +0100
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 08:34 -0500
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-28 13:40 -0800
                Re: Is this valid C? scott@slp53.sl.home (Scott Lurndal) - 2017-02-28 19:14 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 15:39 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 21:17 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 08:36 -0500
                Re: Is this valid C? scott@slp53.sl.home (Scott Lurndal) - 2017-02-27 17:19 +0000
                Re: Is this valid C? BartC <bc@freeuk.com> - 2017-02-27 17:52 +0000
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-27 19:20 +0100
                Re: Is this valid C? supercat@casperkitty.com - 2017-02-26 10:15 -0800
                Re: Is this valid C? "James R. Kuyper" <jameskuyper@verizon.net> - 2017-02-26 14:12 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-26 15:50 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-27 00:50 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-26 20:12 -0500
                Re: Is this valid C? Ralf Damaschke <rwspam@gmx.de> - 2017-02-27 16:59 +0000
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-27 19:35 +0000
                Re: Is this valid C? Keith Thompson <kst-u@mib.org> - 2017-02-27 12:12 -0800
            Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-02-23 11:36 -0800
              Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-23 16:43 -0500
            Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 12:22 -0800
              Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 15:39 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 13:26 -0800
                Re: Is this valid C? "James R. Kuyper" <jameskuyper@verizon.net> - 2017-02-24 18:53 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 20:14 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 20:13 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 18:33 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 21:58 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 19:38 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 23:21 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-25 06:57 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-25 16:08 -0500
                Re: Is this valid C? Andrey Tarasevich <andreytarasevich@hotmail.com> - 2017-02-24 15:03 -0800
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-02-25 12:12 +1300
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 20:20 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 20:19 -0500
        Re: Is this valid C? jameskuyper@verizon.net - 2017-02-19 08:42 -0800
          Re: Is this valid C? jameskuyper@verizon.net - 2017-02-19 08:58 -0800
          Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-23 16:45 -0500
            Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 11:43 -0800
              Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 15:42 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 13:40 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 20:23 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-24 18:54 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-24 23:17 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-25 19:15 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-25 23:10 -0500
                Re: Is this valid C? "James R. Kuyper" <jameskuyper@verizon.net> - 2017-02-26 12:00 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-26 15:57 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-26 21:54 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-26 19:45 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-27 01:29 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 10:52 -0500
                Re: Is this valid C? Ike Naar <ike@iceland.freeshell.org> - 2017-02-27 16:04 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 11:16 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-27 20:42 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 17:18 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-28 01:34 +0000
                Re: Is this valid C? Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-02-27 17:55 -0800
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-28 02:16 +0000
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-28 10:09 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 23:28 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-28 10:16 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 12:31 -0500
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-28 20:17 +0100
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 19:26 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 15:42 -0500
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-28 23:30 +0100
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 08:37 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-27 09:19 +0000
                Re: Is this valid C? James Kuyper <jameskuyper@verizon.net> - 2017-02-27 09:14 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 11:00 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-27 16:24 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 10:58 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-27 16:39 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 15:19 -0500
                Re: Is this valid C? Ike Naar <ike@iceland.freeshell.org> - 2017-02-27 20:57 +0000
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-27 21:52 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 17:21 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-27 23:33 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 18:49 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-27 16:06 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 19:52 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-27 17:10 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 23:31 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-28 06:44 -0800
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 00:14 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 20:00 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 02:37 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 23:37 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 17:20 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-27 21:21 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 17:29 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-27 15:04 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 18:58 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-27 16:18 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 20:03 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-27 17:17 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 23:40 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 02:57 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 23:46 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 00:01 +0000
                Re: Is this valid C? "James R. Kuyper" <jameskuyper@verizon.net> - 2017-02-27 19:23 -0500
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 20:05 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-27 17:51 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 00:00 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-28 09:23 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 13:32 -0500
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-03-01 07:36 +1300
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 15:43 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 21:21 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 11:39 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-03-01 16:56 +0000
                Re: Is this valid C? supercat@casperkitty.com - 2017-03-01 09:12 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-03-01 19:07 +0100
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-04-30 08:34 -0700
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-03-01 18:00 +0100
                Re: Is this valid C? jameskuyper@verizon.net - 2017-03-01 09:49 -0800
                Re: Is this valid C? Tim Rentsch <txr@alumni.caltech.edu> - 2017-04-16 20:52 -0700
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-03-01 14:26 +1300
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 11:40 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-03-01 16:57 +0000
                Re: Is this valid C? me <crisdunbar@gmail.com> - 2017-03-01 10:19 -0800
                Re: Is this valid C? David Brown <david.brown@hesbynett.no> - 2017-02-28 20:25 +0100
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 15:45 -0500
                Re: Is this valid C? Ian Collins <ian-news@hotmail.com> - 2017-03-01 14:28 +1300
                Re: Is this valid C? cross@spitfire.i.gajendra.net (Dan Cross) - 2017-03-01 03:17 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 11:43 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-03-01 10:28 -0800
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-28 11:35 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 15:46 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 03:07 +0000
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-27 23:56 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 20:18 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-27 18:05 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 00:02 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-27 21:36 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 17:32 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-28 01:29 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 00:09 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 05:22 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 12:36 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 18:10 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 13:35 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-02-28 18:56 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 15:46 -0500
                Re: Is this valid C? Gareth Owen <gwowen@gmail.com> - 2017-02-28 19:39 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 15:48 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-02-28 10:46 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-28 12:43 -0500
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-03-01 02:08 +0000
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-03-01 11:52 -0500
                Re: Is this valid C? Richard Heathfield <rjh@cpax.org.uk> - 2017-03-01 16:58 +0000
                Re: Is this valid C? jameskuyper@verizon.net - 2017-03-01 09:32 -0800
                Re: Is this valid C? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-03-01 21:50 +0000
                Re: Is this valid C? jameskuyper@verizon.net - 2017-03-01 09:18 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-26 19:47 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-26 19:24 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 11:08 -0500
                Re: Is this valid C? jameskuyper@verizon.net - 2017-02-27 10:15 -0800
                Re: Is this valid C? Jerry Stuckle <jstucklex@attglobal.net> - 2017-02-27 15:08 -0500

(Thread has 539 articles, showing 500 — browse group in flat view)


csiph-web