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Re: bart again (UCX64)

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From Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups comp.lang.c
Subject Re: bart again (UCX64)
Date Wed, 13 Sep 2023 03:01:33 +0100
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David Brown <david.brown@hesbynett.no> writes:

> On 12/09/2023 18:28, Bart wrote:
>> On 12/09/2023 16:17, Ben Bacarisse wrote:
>>> Malcolm McLean <malcolm.arthur.mclean@gmail.com> writes:
>>>
>> 
>>>> No we can't use Haskell.
>>>
>>> That's a shame.  The Glasgow Haskell compiler reports that in
>>>
>>>    sign :: Double -> Int
>>>    sign x | x <  0 = -1
>>>           | x == 0 =  0
>>>           | x >  0 =  1
>>>
>>> the guards are non-exhaustive.
>
> To be fair, it will also give the same warning if you replace "Double" with
> "Int".

Well that's disappointing.  I thought it was doing a more interesting
analysis that would exclude such false positives.  I must never have
written a set of guards that was not obviously exhaustive.

You do of course get a run-time error if you call sign with a NaN.

-- 
Ben.

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Thread

Re: bart again (UCX64) candycane@f172.n1.z21.fsxnet (candycane) - 2023-09-06 19:53 +1300
  Re: bart again (UCX64) Richard Damon <Richard@Damon-Family.org> - 2023-09-07 12:00 -0700
    Re: bart again (UCX64) Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2023-09-07 16:33 -0700
      Re: bart again (UCX64) Richard Damon <Richard@Damon-Family.org> - 2023-09-07 20:55 -0700
        Re: bart again (UCX64) Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2023-09-07 22:16 -0700
          Re: bart again (UCX64) Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-08 07:09 +0000
            Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-08 10:10 +0200
              Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-08 01:30 -0700
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-08 11:26 +0200
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-08 10:44 +0100
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-08 13:26 +0200
                Re: bart again (UCX64) Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-09 01:57 +0000
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-09 18:36 +0200
                Re: bart again (UCX64) Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-09 18:19 +0000
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-10 13:28 +0200
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-10 13:20 +0100
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-10 15:19 +0200
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-10 16:07 +0100
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-10 18:33 +0200
                Re: bart again (UCX64) Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-10 15:44 +0000
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-10 18:36 +0200
                Re: bart again (UCX64) Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-09 01:48 +0000
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-09 19:04 +0200
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-08 02:47 -0700
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-08 16:03 +0200
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-08 16:06 -0700
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-09 01:52 +0100
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-08 18:16 -0700
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-09 21:31 +0100
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-10 12:03 +0200
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-10 21:36 -0700
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-11 08:51 +0200
                Re: bart again (UCX64) "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-09-10 23:59 -0700
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-11 01:01 -0700
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-11 11:17 +0200
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-11 03:16 -0700
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-11 14:58 +0200
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-11 06:35 -0700
                Re: bart again (UCX64) Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-11 14:13 +0000
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-11 16:24 +0200
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-11 14:55 +0100
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-11 16:42 +0200
                Re: bart again (UCX64) Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-11 14:29 +0000
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-11 11:25 +0100
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-11 03:59 -0700
                Re: bart again (UCX64) Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-11 13:57 +0000
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-11 09:52 -0700
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-11 16:07 +0200
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-11 16:26 +0100
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-11 16:47 +0100
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-11 19:14 +0200
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-11 22:30 +0100
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-11 23:07 +0100
                Re: bart again (UCX64) scott@slp53.sl.home (Scott Lurndal) - 2023-09-11 23:31 +0000
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-12 09:18 +0200
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-12 03:01 +0100
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-11 10:08 -0700
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-11 23:18 +0100
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-11 23:37 +0100
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-11 15:46 -0700
                Re: bart again (UCX64) scott@slp53.sl.home (Scott Lurndal) - 2023-09-11 23:40 +0000
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-12 01:50 +0100
                Re: bart again (UCX64) Richard Damon <Richard@Damon-Family.org> - 2023-09-11 17:59 -0700
                Re: bart again (UCX64) scott@slp53.sl.home (Scott Lurndal) - 2023-09-12 01:03 +0000
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-12 02:39 +0100
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-12 11:28 +0100
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-12 14:49 +0100
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-12 15:18 +0100
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-12 03:58 +0100
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-12 02:25 -0700
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-12 16:17 +0100
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-12 17:28 +0100
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-12 21:07 +0200
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-13 03:01 +0100
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-13 09:38 +0200
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-13 10:00 +0200
                Re: bart again (UCX64) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2023-09-19 05:22 -0700
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-19 14:29 +0100
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-13 13:35 +0100
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-13 20:48 +0100
                Re: bart again (UCX64) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2023-09-19 05:53 -0700
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-12 09:33 -0700
                Re: bart again (UCX64) scott@slp53.sl.home (Scott Lurndal) - 2023-09-12 16:48 +0000
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-12 10:57 -0700
                Re: bart again (UCX64) scott@slp53.sl.home (Scott Lurndal) - 2023-09-12 18:07 +0000
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-12 21:23 +0200
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-13 02:07 -0700
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-13 12:43 +0200
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-13 04:04 -0700
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-13 14:07 +0200
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-13 01:47 -0700
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-13 13:02 +0200
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-13 04:45 -0700
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-13 14:36 +0200
                Re: bart again (UCX64) scott@slp53.sl.home (Scott Lurndal) - 2023-09-13 13:43 +0000
                Re: bart again (UCX64) James Kuyper <jameskuyper@alumni.caltech.edu> - 2023-09-13 11:10 -0400
                Re: bart again (UCX64) Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-13 17:12 +0000
                [meta] spam in thread Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-13 11:22 -0700
                Re: [meta] spam in thread Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-13 18:40 +0000
                Re: [meta] spam in thread Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-13 11:48 -0700
                Re: [meta] spam in thread David Brown <david.brown@hesbynett.no> - 2023-09-13 21:01 +0200
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-13 19:58 +0100
                Re: bart again (UCX64) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2023-09-18 12:36 -0700
                Re: bart again (UCX64) Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2023-09-18 13:40 -0700
                Re: bart again (UCX64) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2023-09-20 19:43 -0700
                Re: bart again (UCX64) "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-09-20 20:14 -0700
                Re: bart again (UCX64) Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2023-09-20 22:10 -0700
                Re: bart again (UCX64) Tim Rentsch <tr.17687@z991.linuxsc.com> - 2023-10-01 11:03 -0700
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-13 07:39 -0700
                Re: bart again (UCX64) scott@slp53.sl.home (Scott Lurndal) - 2023-09-13 15:18 +0000
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-13 18:39 +0200
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-13 15:44 +0100
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-13 08:42 -0700
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-13 22:35 +0100
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-13 18:49 +0200
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-11 15:40 -0700
                Re: bart again (UCX64) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2023-09-12 03:36 +0100
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-12 12:58 +0200
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-12 12:49 +0200
                Re: bart again (UCX64) Bart <bc@freeuk.com> - 2023-09-12 12:52 +0100
                Re: bart again (UCX64) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2023-09-12 05:22 -0700
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-12 15:05 +0200
                Re: bart again (UCX64) Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-09 02:17 +0000
                Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-10 14:44 +0200
                Re: bart again (UCX64) scott@slp53.sl.home (Scott Lurndal) - 2023-09-08 14:36 +0000
                Re: bart again (UCX64) Kaz Kylheku <864-117-4973@kylheku.com> - 2023-09-09 01:50 +0000
                Re: bart again (UCX64) scott@slp53.sl.home (Scott Lurndal) - 2023-09-09 15:40 +0000
          Re: bart again (UCX64) David Brown <david.brown@hesbynett.no> - 2023-09-08 09:57 +0200
          Re: bart again (UCX64) Richard Damon <Richard@Damon-Family.org> - 2023-09-09 10:23 -0700

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