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Groups > comp.lang.c > #153691 > unrolled thread

widening multiplication

Started byjacobnavia <jacob@jacob.remcomp.fr>
First post2020-08-17 22:11 +0200
Last post2020-08-23 08:03 -0700
Articles 14 on this page of 154 — 23 participants

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  widening multiplication jacobnavia <jacob@jacob.remcomp.fr> - 2020-08-17 22:11 +0200
    Re: widening multiplication Eric Sosman <esosman@comcast-dot-net.invalid> - 2020-08-17 16:30 -0400
      Re: widening multiplication jacobnavia <jacob@jacob.remcomp.fr> - 2020-08-18 09:27 +0200
    Re: widening multiplication Andrey Tarasevich <andreytarasevich@hotmail.com> - 2020-08-17 13:33 -0700
      Re: widening multiplication jacobnavia <jacob@jacob.remcomp.fr> - 2020-08-18 09:24 +0200
      Re: widening multiplication Andrey Tarasevich <andreytarasevich@hotmail.com> - 2020-08-21 14:47 -0700
    Re: widening multiplication Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-08-17 21:52 +0100
      Re: widening multiplication jacobnavia <jacob@jacob.remcomp.fr> - 2020-08-18 09:22 +0200
    Re: widening multiplication Siri Cruise <chine.bleu@yahoo.com> - 2020-08-17 14:10 -0700
      Re: widening multiplication Bart <bc@freeuk.com> - 2020-08-17 22:33 +0100
        Re: widening multiplication Siri Cruise <chine.bleu@yahoo.com> - 2020-08-17 15:13 -0700
        Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-18 11:33 +0200
      Re: widening multiplication jacobnavia <jacob@jacob.remcomp.fr> - 2020-08-18 09:20 +0200
    Re: widening multiplication scott@slp53.sl.home (Scott Lurndal) - 2020-08-17 21:38 +0000
      Re: widening multiplication jacobnavia <jacob@jacob.remcomp.fr> - 2020-08-18 09:19 +0200
    Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-18 11:31 +0200
      Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-18 05:00 -0700
        Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-18 15:10 +0200
      Re: widening multiplication Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-08-18 12:31 +0000
        Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-18 15:15 +0200
          Re: widening multiplication Siri Cruise <chine.bleu@yahoo.com> - 2020-08-18 06:53 -0700
            Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-18 16:14 +0200
              Re: widening multiplication Siri Cruise <chine.bleu@yahoo.com> - 2020-08-18 07:24 -0700
                Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-18 22:41 +0200
                  Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-18 14:24 -0700
                    Re: widening multiplication Bart <bc@freeuk.com> - 2020-08-18 22:54 +0100
                    Re: widening multiplication Siri Cruise <chine.bleu@yahoo.com> - 2020-08-18 15:18 -0700
                      Re: widening multiplication Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-08-18 15:54 -0700
                    Re: widening multiplication Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-08-18 15:38 -0700
                      Re: widening multiplication Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-08-19 07:03 +0000
                    Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-19 09:24 +0200
                      Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-19 02:13 -0700
                        Re: widening multiplication Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-08-19 10:43 +0000
                        Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-19 12:50 +0200
                          Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-19 07:30 -0700
                          Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-19 07:44 -0700
                            Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-19 17:35 +0200
                        Re: widening multiplication Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-08-19 10:13 -0700
                          Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-19 14:30 -0700
                            Re: widening multiplication Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-08-19 15:07 -0700
                            Re: widening multiplication Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-08-19 22:13 +0000
                              Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-19 15:49 -0700
                                Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-20 11:31 +0200
                                  Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-20 03:47 -0700
                                    Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-20 13:21 +0200
                                      Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-20 08:20 -0400
                                        Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-21 09:51 +0200
                                          Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-21 02:51 -0700
                                            Re: widening multiplication Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-08-21 11:44 +0100
                                              Re: widening multiplication Bart <bc@freeuk.com> - 2020-08-21 12:17 +0100
                                                Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-21 13:36 +0200
                                                  Re: widening multiplication Bart <bc@freeuk.com> - 2020-08-21 13:15 +0100
                                                    Re: widening multiplication Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-08-21 11:04 -0700
                                                  Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-21 08:30 -0400
                                              Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-21 13:32 +0200
                                                Re: widening multiplication Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-08-21 12:46 +0100
                                              Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-21 07:43 -0700
                                                Re: widening multiplication Bart <bc@freeuk.com> - 2020-08-21 16:13 +0100
                                                  Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-21 20:15 +0200
                                                Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-21 20:14 +0200
                                                  Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-21 16:37 -0700
                                                    Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-22 15:38 +0200
                                                Re: widening multiplication Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-08-22 01:02 +0100
                                                  Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-22 04:57 -0700
                                                    Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-22 16:11 +0200
                                                      Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-22 08:46 -0700
                                                        Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-22 18:33 +0200
                                                        Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-22 13:44 -0400
                                                        Re: widening multiplication Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-08-22 12:48 -0700
                                                    Re: widening multiplication Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-08-22 21:45 +0100
                                                  Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-22 05:20 -0700
                                                    Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-22 10:16 -0400
                                                      Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-22 08:59 -0700
                                                        Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-22 19:04 +0200
                                                          Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-22 13:59 -0400
                                                            Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-22 23:01 +0200
                                                            Re: widening multiplication Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-08-23 07:42 -0700
                                                          Re: widening multiplication Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-08-22 22:12 +0100
                                                            Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-23 13:31 +0200
                                                              Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-23 04:53 -0700
                                                                Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-23 14:22 +0200
                                                                  Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-23 06:47 -0700
                                                                    Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-23 16:25 +0200
                                                                      Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-23 07:42 -0700
                                                                        Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-24 09:10 +0200
                                                                          Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-24 02:06 -0700
                                                                  Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-23 13:10 -0400
                                                              Re: widening multiplication Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-08-23 16:16 +0100
                                                    Re: widening multiplication Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-08-22 22:02 +0100
                                                      Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-22 18:14 -0700
                                                        Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-23 14:27 +0200
                                    Re: widening multiplication James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-08-21 05:58 -0700
                              Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-19 19:15 -0400
                                Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-19 16:48 -0700
                            Re: widening multiplication Bart <bc@freeuk.com> - 2020-08-19 23:39 +0100
                              Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-19 15:51 -0700
                              Re: widening multiplication Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-08-19 15:56 -0700
                              Re: widening multiplication Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-08-19 16:04 -0700
                                Re: widening multiplication Siri Cruise <chine.bleu@yahoo.com> - 2020-08-19 18:04 -0700
                            Re: widening multiplication antispam@math.uni.wroc.pl - 2020-08-20 00:13 +0000
                            Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-20 10:06 +0200
                              Re: widening multiplication Stef <stef33d@yahooI-N-V-A-L-I-D.com.invalid> - 2020-08-20 11:26 +0200
                                Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-20 13:25 +0200
                      Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-19 07:41 -0400
                        Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-19 15:08 +0200
                          Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-19 10:29 -0400
                            Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-19 17:41 +0200
                              Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-19 13:34 -0400
                                Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-19 20:21 +0200
                  Re: widening multiplication Siri Cruise <chine.bleu@yahoo.com> - 2020-08-18 15:16 -0700
                    Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-19 09:32 +0200
          Re: widening multiplication James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-08-18 11:11 -0400
            Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-18 22:45 +0200
    Re: widening multiplication Daniel Hyde <Daniel.Hyde71@gmail.com> - 2020-08-19 20:17 +0200
      Re: widening multiplication James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-08-19 15:20 -0400
        Re: widening multiplication Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-08-19 20:59 +0000
          Re: widening multiplication James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-08-19 17:28 -0400
            Re: widening multiplication Bart <bc@freeuk.com> - 2020-08-19 22:43 +0100
      Re: widening multiplication Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2020-08-19 21:38 +0200
        Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-19 21:47 +0200
        Re: widening multiplication Daniel Hyde <Daniel.Hyde71@gmail.com> - 2020-08-20 12:24 +0200
          Re: widening multiplication James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-08-20 08:14 -0400
            Re: widening multiplication Daniel Hyde <Daniel.Hyde71@gmail.com> - 2020-08-20 14:20 +0200
              Re: widening multiplication Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-08-20 10:39 -0700
      Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-19 15:55 -0400
        Re: widening multiplication Daniel Hyde <Daniel.Hyde71@gmail.com> - 2020-08-22 12:30 +0200
          Re: widening multiplication James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-08-22 05:09 -0700
            Re: widening multiplication Daniel Hyde <Daniel.Hyde71@gmail.com> - 2020-08-22 17:15 +0200
              Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-22 19:06 +0200
                Re: widening multiplication Richard Harnden <richard.nospam@gmail.com> - 2020-08-22 19:06 +0100
                  Re: widening multiplication Bonita Montero <Bonita.Montero@gmail.com> - 2020-08-22 20:28 +0200
                  Re: widening multiplication Bonita Montero <Bonita.Montero@gmail.com> - 2020-08-23 01:36 +0200
                    Re: widening multiplication "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2020-08-22 18:15 -0700
                    Re: widening multiplication Bonita Montero <Bonita.Montero@gmail.com> - 2020-08-23 11:16 +0200
                      Re: widening multiplication "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2020-08-23 21:05 -0700
                Re: widening multiplication Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-08-22 12:45 -0700
              Re: widening multiplication James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-08-22 11:47 -0700
          Re: widening multiplication Richard Damon <Richard@Damon-Family.org> - 2020-08-22 10:21 -0400
            Re: widening multiplication Bart <bc@freeuk.com> - 2020-08-22 16:18 +0100
              Re: widening multiplication David Brown <david.brown@hesbynett.no> - 2020-08-22 19:16 +0200
          Re: widening multiplication Kaz Kylheku <793-849-0957@kylheku.com> - 2020-08-23 04:38 +0000
            Re: widening multiplication James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-08-23 08:22 -0400
              Re: widening multiplication Kaz Kylheku <793-849-0957@kylheku.com> - 2020-08-24 03:00 +0000
                Re: widening multiplication James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-08-23 23:54 -0400
                  Re: widening multiplication Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-08-24 06:19 +0000
                    Re: widening multiplication James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-08-24 09:45 -0400
                      Re: widening multiplication Kaz Kylheku <793-849-0957@kylheku.com> - 2020-08-24 14:47 +0000
                        Re: widening multiplication "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2020-08-24 12:14 -0700
                      Re: widening multiplication Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-08-24 08:40 -0700
                      Re: widening multiplication Jorgen Grahn <grahn+nntp@snipabacken.se> - 2020-08-26 18:06 +0000
            Re: widening multiplication Daniel Hyde <Daniel.Hyde71@gmail.com> - 2020-08-23 17:55 +0200
              Re: widening multiplication Bart <bc@freeuk.com> - 2020-08-23 17:38 +0100
      Re: widening multiplication Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-08-19 13:15 -0700
    Re: widening multiplication rick.c.hodgin@gmail.com - 2020-08-23 08:03 -0700

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#153930

FromKaz Kylheku <793-849-0957@kylheku.com>
Date2020-08-23 04:38 +0000
Message-ID<20200822212226.239@kylheku.com>
In reply to#153852
On 2020-08-22, Daniel Hyde <Daniel.Hyde71@gmail.com> wrote:
>>> Gcc is wrong.
>
>> GCC does it per the spec. int * int yields int
>
> No, it yields long since long is always twice as large as int
> and can hold the result of a multiplication of two ints. This
> is what the standard says !!!

You people do realize that this is *not* actually trolling, right?

It simply doesn't meet any reasonable, workable definition.

This is, in a sense, is a kind of opposite of trolling. A troll manages
to convince a good many people that he or she is sincere (believes what
they write).

This post instantly convinces me that the writer behind "Daniel Hyde"
is doing nothing other than generating amusement by inventing
falsehoolds which predictably provoke lengthy technical refutations from
some c.l.c long timers.

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#153953

FromJames Kuyper <jameskuyper@alumni.caltech.edu>
Date2020-08-23 08:22 -0400
Message-ID<rhtn30$p7v$1@dont-email.me>
In reply to#153930
On 8/23/20 12:38 AM, Kaz Kylheku wrote:
> On 2020-08-22, Daniel Hyde <Daniel.Hyde71@gmail.com> wrote:
>>>> Gcc is wrong.
>>
>>> GCC does it per the spec. int * int yields int
>>
>> No, it yields long since long is always twice as large as int
>> and can hold the result of a multiplication of two ints. This
>> is what the standard says !!!
> 
> You people do realize that this is *not* actually trolling, right?

No, I don't.

> It simply doesn't meet any reasonable, workable definition.

It meets precisely definition #2 under
<https://en.wiktionary.org/wiki/troll#Noun_2>

> This is, in a sense, is a kind of opposite of trolling. A troll manages
> to convince a good many people that he or she is sincere (believes what
> they write).

It doesn't matter to a troll whether you respond out of the belief that
there's a possibility that he might have been sincerely mistaken (which
the reason for most of my replies to Daniel Hyde), or to criticize them
for being a troll. The only result that disappoints a troll is no
response at all.

> This post instantly convinces me that the writer behind "Daniel Hyde"
> is doing nothing other than generating amusement by inventing
> falsehoolds which predictably provoke lengthy technical refutations from
> some c.l.c long timers.

That is precisely the original definition of a troll. To understand the
noun better, look at the corresponding verb:
<https://en.wiktionary.org/wiki/troll#Verb>, definition #8. It was
originally derived from definition #4, where the inflammatory material
is metaphorically considered to be a kind of bait.

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#153976

FromKaz Kylheku <793-849-0957@kylheku.com>
Date2020-08-24 03:00 +0000
Message-ID<20200823182120.305@kylheku.com>
In reply to#153953
On 2020-08-23, James Kuyper <jameskuyper@alumni.caltech.edu> wrote:
> That is precisely the original definition of a troll. To understand the
> noun better, look at the corresponding verb:
><https://en.wiktionary.org/wiki/troll#Verb>, definition #8. It was
> originally derived from definition #4, where the inflammatory material
> is metaphorically considered to be a kind of bait.

My point is that if the people being baited are complete idiots in
falling for it, then it isn't not True Scotsman's trolling.

I'm just moving the "troalposts" a little bit to a reasonable place.

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#153977

FromJames Kuyper <jameskuyper@alumni.caltech.edu>
Date2020-08-23 23:54 -0400
Message-ID<rhvdm1$5qg$1@dont-email.me>
In reply to#153976
On 8/23/20 11:00 PM, Kaz Kylheku wrote:
> On 2020-08-23, James Kuyper <jameskuyper@alumni.caltech.edu> wrote:
>> That is precisely the original definition of a troll. To understand the
>> noun better, look at the corresponding verb:
>> <https://en.wiktionary.org/wiki/troll#Verb>, definition #8. It was
>> originally derived from definition #4, where the inflammatory material
>> is metaphorically considered to be a kind of bait.
> 
> My point is that if the people being baited are complete idiots in
> falling for it, then it isn't not True Scotsman's trolling.

I have to disagree - nothing is more typical of a true troll than the
belief that their victims are idiots for falling for it.

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#153982

FromJorgen Grahn <grahn+nntp@snipabacken.se>
Date2020-08-24 06:19 +0000
Message-ID<slrnrk6mvi.1pog.grahn+nntp@frailea.sa.invalid>
In reply to#153977
On Mon, 2020-08-24, James Kuyper wrote:
> On 8/23/20 11:00 PM, Kaz Kylheku wrote:
>> On 2020-08-23, James Kuyper <jameskuyper@alumni.caltech.edu> wrote:
>>> That is precisely the original definition of a troll. To understand the
>>> noun better, look at the corresponding verb:
>>> <https://en.wiktionary.org/wiki/troll#Verb>, definition #8. It was
>>> originally derived from definition #4, where the inflammatory material
>>> is metaphorically considered to be a kind of bait.
>> 
>> My point is that if the people being baited are complete idiots in
>> falling for it, then it isn't not True Scotsman's trolling.
>
> I have to disagree - nothing is more typical of a true troll than the
> belief that their victims are idiots for falling for it.

All this is a minor disagreement IMHO, given that people are regularly
being called trolls, when their intention is obviously not to disrupt.

/Jorgen

-- 
  // Jorgen Grahn <grahn@  Oo  o.   .     .
\X/     snipabacken.se>   O  o   .

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#153989

FromJames Kuyper <jameskuyper@alumni.caltech.edu>
Date2020-08-24 09:45 -0400
Message-ID<ri0gam$ci5$1@dont-email.me>
In reply to#153982
On 8/24/20 2:19 AM, Jorgen Grahn wrote:
> On Mon, 2020-08-24, James Kuyper wrote:
>> On 8/23/20 11:00 PM, Kaz Kylheku wrote:
>>> On 2020-08-23, James Kuyper <jameskuyper@alumni.caltech.edu> wrote:
>>>> That is precisely the original definition of a troll. To understand the
>>>> noun better, look at the corresponding verb:
>>>> <https://en.wiktionary.org/wiki/troll#Verb>, definition #8. It was
>>>> originally derived from definition #4, where the inflammatory material
>>>> is metaphorically considered to be a kind of bait.
>>>
>>> My point is that if the people being baited are complete idiots in
>>> falling for it, then it isn't not True Scotsman's trolling.
>>
>> I have to disagree - nothing is more typical of a true troll than the
>> belief that their victims are idiots for falling for it.
> 
> All this is a minor disagreement IMHO, given that people are regularly
> being called trolls, when their intention is obviously not to disrupt.

I no longer have any doubt that Scott Newman and Daniel Hyde both
deliberately posts blatantly incorrect statements for the sole purpose
of disrupting this group by either misleading newbies or prompting
experts to waste their time correcting his errors.  Do you?

I gave Daniel Hyde the benefit of the doubt when he actually bothered
responding to one criticism, even though I has strong doubts about
whether he was really redeemable, but only because it is my policy to
give people some limited opportunities to correct a bad impression
they've made on me.

Bonita, on the other hand, appears to merely be someone with strong and
incorrect ideas who pays no attention to counter arguments other than to
rudely dismiss them. She's obnoxious, and I'd be glad see her
obnoxiousness disappear (whether or not she herself disappears), but I
don't call her a troll.

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#153990

FromKaz Kylheku <793-849-0957@kylheku.com>
Date2020-08-24 14:47 +0000
Message-ID<20200824073949.746@kylheku.com>
In reply to#153989
On 2020-08-24, James Kuyper <jameskuyper@alumni.caltech.edu> wrote:
> On 8/24/20 2:19 AM, Jorgen Grahn wrote:
>> On Mon, 2020-08-24, James Kuyper wrote:
>>> On 8/23/20 11:00 PM, Kaz Kylheku wrote:
>>>> On 2020-08-23, James Kuyper <jameskuyper@alumni.caltech.edu> wrote:
>>>>> That is precisely the original definition of a troll. To understand the
>>>>> noun better, look at the corresponding verb:
>>>>> <https://en.wiktionary.org/wiki/troll#Verb>, definition #8. It was
>>>>> originally derived from definition #4, where the inflammatory material
>>>>> is metaphorically considered to be a kind of bait.
>>>>
>>>> My point is that if the people being baited are complete idiots in
>>>> falling for it, then it isn't not True Scotsman's trolling.
>>>
>>> I have to disagree - nothing is more typical of a true troll than the
>>> belief that their victims are idiots for falling for it.
>> 
>> All this is a minor disagreement IMHO, given that people are regularly
>> being called trolls, when their intention is obviously not to disrupt.
>
> I no longer have any doubt that Scott Newman and Daniel Hyde both
> deliberately posts blatantly incorrect statements for the sole purpose
> of disrupting this group by either misleading newbies or prompting
> experts to waste their time correcting his errors.  Do you?

"Someone is misleading newbies in a newsgroup, and, damn it,
I'm not just going to sand idly by while that happens!"

Come on. First of all, what newbies. There probably isn't anyone here
with less than 20 years of C experience.

Maybe there should be a c.l.c bot that automatically follows up
to those idiot posts with a canned one-liner containing a link to
an informational page.

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#153992

From"Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Date2020-08-24 12:14 -0700
Message-ID<ri13ic$1qo9$3@gioia.aioe.org>
In reply to#153990
On 8/24/2020 7:47 AM, Kaz Kylheku wrote:
> On 2020-08-24, James Kuyper <jameskuyper@alumni.caltech.edu> wrote:
>> On 8/24/20 2:19 AM, Jorgen Grahn wrote:
>>> On Mon, 2020-08-24, James Kuyper wrote:
>>>> On 8/23/20 11:00 PM, Kaz Kylheku wrote:
>>>>> On 2020-08-23, James Kuyper <jameskuyper@alumni.caltech.edu> wrote:
>>>>>> That is precisely the original definition of a troll. To understand the
>>>>>> noun better, look at the corresponding verb:
>>>>>> <https://en.wiktionary.org/wiki/troll#Verb>, definition #8. It was
>>>>>> originally derived from definition #4, where the inflammatory material
>>>>>> is metaphorically considered to be a kind of bait.
>>>>>
>>>>> My point is that if the people being baited are complete idiots in
>>>>> falling for it, then it isn't not True Scotsman's trolling.
>>>>
>>>> I have to disagree - nothing is more typical of a true troll than the
>>>> belief that their victims are idiots for falling for it.
>>>
>>> All this is a minor disagreement IMHO, given that people are regularly
>>> being called trolls, when their intention is obviously not to disrupt.
>>
>> I no longer have any doubt that Scott Newman and Daniel Hyde both
>> deliberately posts blatantly incorrect statements for the sole purpose
>> of disrupting this group by either misleading newbies or prompting
>> experts to waste their time correcting his errors.  Do you?
> 
> "Someone is misleading newbies in a newsgroup, and, damn it,
> I'm not just going to sand idly by while that happens!"
> 
> Come on. First of all, what newbies. There probably isn't anyone here
> with less than 20 years of C experience.
> 
> Maybe there should be a c.l.c bot that automatically follows up
> to those idiot posts with a canned one-liner containing a link to
> an informational page.
> 

C_Sarcasta_Bot version 0.0.1.

;^)

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#153991

FromKeith Thompson <Keith.S.Thompson+u@gmail.com>
Date2020-08-24 08:40 -0700
Message-ID<87h7ss3vcv.fsf@nosuchdomain.example.com>
In reply to#153989
James Kuyper <jameskuyper@alumni.caltech.edu> writes:
> On 8/24/20 2:19 AM, Jorgen Grahn wrote:
>> On Mon, 2020-08-24, James Kuyper wrote:
>>> On 8/23/20 11:00 PM, Kaz Kylheku wrote:
>>>> On 2020-08-23, James Kuyper <jameskuyper@alumni.caltech.edu> wrote:
>>>>> That is precisely the original definition of a troll. To understand the
>>>>> noun better, look at the corresponding verb:
>>>>> <https://en.wiktionary.org/wiki/troll#Verb>, definition #8. It was
>>>>> originally derived from definition #4, where the inflammatory material
>>>>> is metaphorically considered to be a kind of bait.
>>>>
>>>> My point is that if the people being baited are complete idiots in
>>>> falling for it, then it isn't not True Scotsman's trolling.
>>>
>>> I have to disagree - nothing is more typical of a true troll than the
>>> belief that their victims are idiots for falling for it.
>> 
>> All this is a minor disagreement IMHO, given that people are regularly
>> being called trolls, when their intention is obviously not to disrupt.
>
> I no longer have any doubt that Scott Newman and Daniel Hyde both
> deliberately posts blatantly incorrect statements for the sole purpose
> of disrupting this group by either misleading newbies or prompting
> experts to waste their time correcting his errors.  Do you?
>
> I gave Daniel Hyde the benefit of the doubt when he actually bothered
> responding to one criticism, even though I has strong doubts about
> whether he was really redeemable, but only because it is my policy to
> give people some limited opportunities to correct a bad impression
> they've made on me.
>
> Bonita, on the other hand, appears to merely be someone with strong and
> incorrect ideas who pays no attention to counter arguments other than to
> rudely dismiss them. She's obnoxious, and I'd be glad see her
> obnoxiousness disappear (whether or not she herself disappears), but I
> don't call her a troll.

And I'm sure that they're all *delighted* that we're spending time
arguing about the definition of "troll".  Let's not.

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for Philips Healthcare
void Void(void) { Void(); } /* The recursive call of the void */

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#154018

FromJorgen Grahn <grahn+nntp@snipabacken.se>
Date2020-08-26 18:06 +0000
Message-ID<slrnrkd962.1pog.grahn+nntp@frailea.sa.invalid>
In reply to#153989
On Mon, 2020-08-24, James Kuyper wrote:
> On 8/24/20 2:19 AM, Jorgen Grahn wrote:
>> On Mon, 2020-08-24, James Kuyper wrote:
>>> On 8/23/20 11:00 PM, Kaz Kylheku wrote:
>>>> On 2020-08-23, James Kuyper <jameskuyper@alumni.caltech.edu> wrote:
>>>>> That is precisely the original definition of a troll. To understand the
>>>>> noun better, look at the corresponding verb:
>>>>> <https://en.wiktionary.org/wiki/troll#Verb>, definition #8. It was
>>>>> originally derived from definition #4, where the inflammatory material
>>>>> is metaphorically considered to be a kind of bait.
>>>>
>>>> My point is that if the people being baited are complete idiots in
>>>> falling for it, then it isn't not True Scotsman's trolling.
>>>
>>> I have to disagree - nothing is more typical of a true troll than the
>>> belief that their victims are idiots for falling for it.
>> 
>> All this is a minor disagreement IMHO, given that people are regularly
>> being called trolls, when their intention is obviously not to disrupt.
>
> I no longer have any doubt that Scott Newman and Daniel Hyde both
> deliberately posts blatantly incorrect statements for the sole purpose
> of disrupting this group by either misleading newbies or prompting
> experts to waste their time correcting his errors.  Do you?

No.

> I gave Daniel Hyde the benefit of the doubt when he actually bothered
> responding to one criticism, even though I has strong doubts about
> whether he was really redeemable, but only because it is my policy to
> give people some limited opportunities to correct a bad impression
> they've made on me.
>
> Bonita, on the other hand, appears to merely be someone with strong and
> incorrect ideas who pays no attention to counter arguments other than to
> rudely dismiss them. She's obnoxious, and I'd be glad see her
> obnoxiousness disappear (whether or not she herself disappears), but I
> don't call her a troll.

We agree.  My point was just that some people (not you) regularly call
BM (and Rick, and so on) a troll -- although they are simply wrong[1] and
rude.

/Jorgen

[1] Not always, but much of the time.

-- 
  // Jorgen Grahn <grahn@  Oo  o.   .     .
\X/     snipabacken.se>   O  o   .

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#153968

FromDaniel Hyde <Daniel.Hyde71@gmail.com>
Date2020-08-23 17:55 +0200
Message-ID<rhu3gq$1qpe$1@gioia.aioe.org>
In reply to#153930
I'm not a troll.
F.e. uint32_t * uint32_t yields uint64_t.
Why should this be different; no smaller type could hold the result.

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#153970

FromBart <bc@freeuk.com>
Date2020-08-23 17:38 +0100
Message-ID<SXw0H.1028357$SG4.146275@fx27.am4>
In reply to#153968
On 23/08/2020 16:55, Daniel Hyde wrote:
> I'm not a troll.
> F.e. uint32_t * uint32_t yields uint64_t.
> Why should this be different; no smaller type could hold the result.

It depends on the values. If you multiply 2 by 3 to get 6, for example, 
then clearly 6 fits into uint32_t.

And probably the vast majority of u32*u32 in bug-free code will have a 
result in the range of u32.

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#153769

FromKeith Thompson <Keith.S.Thompson+u@gmail.com>
Date2020-08-19 13:15 -0700
Message-ID<87sgci8ka1.fsf@nosuchdomain.example.com>
In reply to#153762
Daniel Hyde <Daniel.Hyde71@gmail.com> writes:
>> Gcc generates a 32 bit multiplication, discarding any result that
>> overflows, then widens the possibly truncated result to 64 bits.
>> Lcc-win generates a 64 bit multiplication.
>
> Gcc is wrong.

Context:

  1 long long fn(int a,int b)
  2 {
  3     long long result = a * b;
  4     return result;
  5 }

How is gcc wrong?  (Hint: It isn't.)

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for Philips Healthcare
void Void(void) { Void(); } /* The recursive call of the void */

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#153965

Fromrick.c.hodgin@gmail.com
Date2020-08-23 08:03 -0700
Message-ID<0929be3f-e99d-4662-a063-4b9caa9cc697o@googlegroups.com>
In reply to#153691
On Monday, August 17, 2020 at 4:11:56 PM UTC-4, jacobnavia wrote:
> Consider this:
> 
>    1 long long fn(int a,int b)
>    2 {
>    3     long long result = a * b;
>    4     return result;
>    5 }
> 
> 
> Gcc generates a 32 bit multiplication, discarding any result that 
> overflows, then widens the possibly truncated result to 64 bits.
> 
> Lcc-win generates a 64 bit multiplication.
> 
> Am I doing something wrong what the standard is concerned?
> 
> Thanks in advance.

Jacob, since you have source code to lcc-win, provide an instrumentation
mode which first conducts every integer expression in floating point.
That way you can find the bounding expressions.  The user will run test
data through it, recording the results on many samples.  Then, use that
data for the next compile to determine when to upsize, and optionally,
which parts of the expression to upsize.

You can also auto-upsize one step beyond the instrumentation to be safe.

C/C++ are designed to be as efficient as possible, but there are needs
beyond efficiency.  I see no issue adding in support for those other
needs, including exactness at the expense of performance.

Look at the MAPM arbitrary precision library.  Maybe add bi and bfp types
for arbitrary precision integer and floating point.

Peace, my French compadré. :-)

-- 
Rick C. Hodgin

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