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Groups > comp.lang.c > #147887

Re: mergesort code segfaulting on smallish arrays

From David Brown <david.brown@hesbynett.no>
Newsgroups comp.lang.c
Subject Re: mergesort code segfaulting on smallish arrays
Date 2019-11-10 15:08 +0100
Organization A noiseless patient Spider
Message-ID <qq95kr$unn$1@dont-email.me> (permalink)
References (2 earlier) <87mud63p3b.fsf@bsb.me.uk> <qq5f40$cc6$1@news.albasani.net> <%QBxF.59077$VR.21809@fx39.iad> <qq6qn0$a7t$1@news.albasani.net> <gACxF.16692$Uy3.10016@fx25.iad>

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On 09/11/2019 18:21, Richard Damon wrote:
> On 11/9/19 11:49 AM, Bonita Montero wrote:
>>> high and low are signed, so their difference will be signed (and then
>>> the answer converted to unsigned.
>>
>> Pure theory. There is actually no machine where the differencee
>> can't be represented in an unsigned as long as low is <= high.
> 
> It isn't that the difference can't be expressed as an unsigned (which
> actually it can't on every machine, as UNSIGNED_MAX might be equal to
> INT_MAX, this normally happening on machines that use sign-magnitude
> representation), but that integer overflow is undefined. I know of
> machines that INT_MAX - INT_MIN would yield INT_MAX, because they used
> saturating mathematics (these were machines used for signal processing).
> 
> It may well be that on every machine that YOU have used, signed overflow
> has quietly wrapped, and thus the statement 'worked', but it is not
> promised by the Standard (but might be by a given implementation).
> 
> 
>>
>>> An actual sequence is:
>>>
>>> get rand()
>>> convert to uint64_t and save for later
>>> compute high - low as int
>>> convert difference to unsigned
>>> convert difference to uint64_t
>>> multiply difference by saved rand (as a uint64_t)
>>> divide by RAND_MAX
>>> convert to int
>>> add low
>>
>> That's what I actually do. The conversion of the difference from
>> unsigned to uint64_t is done implicitly.
>>
>>> The code also assume (perhaps acceptably) that RAND_MAX fits in 32 bits.
>>
>> There should be no compiler with an int larger than 32 bit.
> 
> Yes, I currently know of none, which is why that assumption may be
> acceptable, but it is possible.

I believe some Cray systems used 64-bit for short, int and long.  (That 
is based entirely on reading on the web, not on any personal experience.)

> By the straight reading of the language,
> on 64 bit processors, int should have been 64 bits, and long 128 bits.
> The fact that it would leave a hole in the type system, with no natural
> name for both 16 and 32 bit types provided a push to make int 'too
> small' for the machine at 32 bits. (It also helped that much code
> mistakenly assumes int is 32 bits and that the processors handle 32 bit
> ints well).
> 
> My guess is that if/when we get to 128 bit processors, there may well be
> a need for int to grow up to 64 (or even 128 bits) and we will add types
> like short short (and maybe even long short). The language might also
> evolve to assume the 8-bit byte and make the fixed sized types the
> natural types.
> 

I suspect that is unlikely.  Sizes are ingrained in peoples' minds, 
regardless of what the standard says.  And 8-bit char, 16-bit short and 
32-bit int is very convenient, and will continue to be very convenient 
even if processors start handling 128 bit sizes more efficiently.  The 
number of uses of integers that are bigger than 32-bit is quiet small, 
and the cache miss ratio costs of 64-bit int would be high.  Most 
integer usage bigger than 32-bit is in sizes of data in memory or file, 
and 64-bit is going to cover that for a long time.  How often do you 
have need of an integer type that is bigger than 64-bit, but where 
128-bit is really helpful?  If you are moving data around, or doing 
cryptography, hashes, etc., you really want a lot bigger than 128-bit.

Of course, any prediction of "this should be big enough for anyone" is 
going to be wrong :-)

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mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-07 10:39 -0500
  Re: mergesort code segfaulting on smallish arrays Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-11-07 07:48 -0800
    Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-07 16:02 +0000
    Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-07 11:34 -0500
      Re: mergesort code segfaulting on smallish arrays Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-11-07 08:41 -0800
        Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-07 13:02 -0500
          Re: mergesort code segfaulting on smallish arrays Keith Thompson <kst-u@mib.org> - 2019-11-07 10:37 -0800
            Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-07 14:38 -0500
              Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 16:44 +0100
                Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-08 13:01 -0500
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 10:39 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 10:52 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 11:12 +0100
          Re: mergesort code segfaulting on smallish arrays Barry Schwarz <schwarzb@delq.com> - 2019-11-07 12:28 -0800
          Re: mergesort code segfaulting on smallish arrays jadill33@gmail.com - 2019-11-07 13:13 -0800
            Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-08 00:55 +0000
              Re: mergesort code segfaulting on smallish arrays jadill33@gmail.com - 2019-11-08 05:30 -0800
        Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 14:50 +0100
          Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-08 09:31 -0500
            Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-08 09:39 -0500
          Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-08 17:53 +0000
            Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-08 13:15 -0500
              Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-08 20:01 +0000
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-09 00:24 +0000
                Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-09 09:44 -0500
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-09 15:45 +0000
                Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-09 14:30 -0500
                Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-09 12:41 -0500
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-09 19:29 +0000
                Re: mergesort code segfaulting on smallish arrays Richard Damon <Richard@Damon-Family.org> - 2019-11-09 14:59 -0500
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-09 22:00 +0000
                Re: mergesort code segfaulting on smallish arrays Ian Collins <ian-news@hotmail.com> - 2019-11-10 11:24 +1300
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-09 22:48 +0000
                Re: mergesort code segfaulting on smallish arrays Ian Collins <ian-news@hotmail.com> - 2019-11-10 12:09 +1300
                Re: mergesort code segfaulting on smallish arrays David Brown <david.brown@hesbynett.no> - 2019-11-10 14:46 +0100
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 14:11 +0000
                Re: mergesort code segfaulting on smallish arrays David Brown <david.brown@hesbynett.no> - 2019-11-10 17:27 +0100
                Re: mergesort code segfaulting on smallish arrays Keith Thompson <kst-u@mib.org> - 2019-11-09 14:53 -0800
                Re: mergesort code segfaulting on smallish arrays Ian Collins <ian-news@hotmail.com> - 2019-11-10 12:02 +1300
            Re: mergesort code segfaulting on smallish arrays Ian Collins <ian-news@hotmail.com> - 2019-11-09 09:25 +1300
            Re: mergesort code segfaulting on smallish arrays Melzzzzz <Melzzzzz@zzzzz.com> - 2019-11-09 20:18 +0000
              Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-09 21:55 -0500
                Re: mergesort code segfaulting on smallish arrays Melzzzzz <Melzzzzz@zzzzz.com> - 2019-11-10 09:49 +0000
      Re: mergesort code segfaulting on smallish arrays Keith Thompson <kst-u@mib.org> - 2019-11-07 10:34 -0800
  Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-07 16:12 +0000
    Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-07 12:19 -0500
      Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-07 17:42 +0000
        Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-07 13:32 -0500
    Re: mergesort code segfaulting on smallish arrays Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2019-11-07 11:15 -0700
      Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-07 21:57 +0000
        Re: mergesort code segfaulting on smallish arrays Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2019-11-07 19:11 -0700
      Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-07 21:57 +0000
  Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 09:21 +0100
    Re: mergesort code segfaulting on smallish arrays chad <cdalten@gmail.com> - 2019-11-08 04:10 -0800
      Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 13:21 +0100
        Re: mergesort code segfaulting on smallish arrays chad <cdalten@gmail.com> - 2019-11-13 04:12 -0800
          Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-13 13:55 +0100
      Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-08 09:20 -0500
    Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-08 10:23 -0500
      Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 16:36 +0100
        Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-08 11:56 -0500
          Re: mergesort code segfaulting on smallish arrays Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-11-08 09:42 -0800
            Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-08 13:39 -0500
    Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 17:14 +0100
      Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-08 12:00 -0500
        Re: mergesort code segfaulting on smallish arrays "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-14 13:27 -0800
          Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-15 08:17 +0100
            Re: mergesort code segfaulting on smallish arrays "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-15 13:16 -0800
              Re: mergesort code segfaulting on smallish arrays Melzzzzz <Melzzzzz@zzzzz.com> - 2019-11-15 22:35 +0000
                Re: mergesort code segfaulting on smallish arrays "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-16 13:34 -0800
                Re: mergesort code segfaulting on smallish arrays Melzzzzz <Melzzzzz@zzzzz.com> - 2019-11-16 23:01 +0000
                Re: mergesort code segfaulting on smallish arrays Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-11-17 08:34 +0000
                Re: mergesort code segfaulting on smallish arrays Melzzzzz <Melzzzzz@zzzzz.com> - 2019-11-17 09:13 +0000
                Re: mergesort code segfaulting on smallish arrays Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-11-17 09:30 +0000
                Re: mergesort code segfaulting on smallish arrays "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-17 13:53 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-17 10:27 +0100
                Re: mergesort code segfaulting on smallish arrays Melzzzzz <Melzzzzz@zzzzz.com> - 2019-11-17 09:44 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-17 10:50 +0100
              Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-16 07:26 +0100
      Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 18:07 +0100
        Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-08 12:40 -0500
          Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 20:41 +0100
            Re: mergesort code segfaulting on smallish arrays "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-14 13:28 -0800
    Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 06:14 +0100
      Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 08:03 +0100
      Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-09 02:20 -0500
        Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 08:21 +0100
    Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 08:30 +0100
      Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-09 12:50 -0500
        Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 19:18 +0100
          Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-09 14:27 -0500
            Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-13 07:46 +0100
              Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-13 09:32 +0100
                Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-13 09:34 -0500
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-13 16:01 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-13 17:19 +0100
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-13 16:32 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-13 17:50 +0100
                Re: mergesort code segfaulting on smallish arrays chad <cdalten@gmail.com> - 2019-11-13 11:09 -0800
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-13 19:18 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-13 20:31 +0100
                Re: mergesort code segfaulting on smallish arrays "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-13 17:12 -0800
                Re: mergesort code segfaulting on smallish arrays "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-13 20:26 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-14 06:16 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-14 06:40 +0100
                Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-14 01:11 -0500
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-14 10:41 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-14 06:42 +0100
                Re: mergesort code segfaulting on smallish arrays "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-13 21:56 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-14 10:42 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-14 06:39 +0100
                Re: mergesort code segfaulting on smallish arrays "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-13 21:38 -0800
  Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 14:33 +0100
    Re: mergesort code segfaulting on smallish arrays Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-11-08 05:44 -0800
      Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 14:48 +0100
        Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 15:01 +0100
          Re: mergesort code segfaulting on smallish arrays Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-11-08 08:00 -0800
            Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-08 17:12 +0100
            Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-08 16:34 +0000
              Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-12 17:05 +0000
              Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-12 18:07 +0100
    Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-08 23:50 +0000
      Re: mergesort code segfaulting on smallish arrays Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-11-08 19:55 -0800
        Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 17:27 +0100
          Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-09 19:33 +0000
            Re: mergesort code segfaulting on smallish arrays "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-09 18:05 -0800
            Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 05:58 +0100
              Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 12:39 +0000
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 12:48 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 14:38 +0100
                Re: mergesort code segfaulting on smallish arrays Melzzzzz <Melzzzzz@zzzzz.com> - 2019-11-10 13:42 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 14:46 +0100
                Re: mergesort code segfaulting on smallish arrays Melzzzzz <Melzzzzz@zzzzz.com> - 2019-11-10 14:04 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 15:05 +0100
                Re: mergesort code segfaulting on smallish arrays Melzzzzz <Melzzzzz@zzzzz.com> - 2019-11-10 14:09 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 15:19 +0100
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 14:06 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 15:22 +0100
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 14:30 +0000
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 14:36 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 15:59 +0100
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 15:26 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 15:56 +0100
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 15:21 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 16:28 +0100
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 15:38 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 16:58 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 16:59 +0100
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 16:24 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 17:37 +0100
                Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-10 17:22 +0000
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 18:04 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 19:10 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 19:14 +0100
                Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-11 02:14 +0000
                Re: mergesort code segfaulting on smallish arrays DFS <nospam@dfs.com> - 2019-11-10 22:07 -0500
                Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-11 22:16 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-11 06:52 +0100
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-11 10:33 -0800
                Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-11 23:28 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-12 10:56 +0100
                Re: mergesort code segfaulting on smallish arrays "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2019-11-12 02:35 -0800
                Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-12 15:01 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-12 16:08 +0100
                Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-12 15:53 +0000
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-12 16:56 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-11 13:45 +0100
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-12 08:00 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-12 17:03 +0100
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-12 08:27 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-12 17:29 +0100
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-12 08:18 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-12 17:27 +0100
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-12 08:43 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-12 18:01 +0100
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-12 09:41 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-12 18:44 +0100
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-12 11:00 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-12 20:03 +0100
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-12 11:22 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-12 20:24 +0100
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-12 11:44 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-13 06:23 +0100
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-13 06:40 -0800
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-13 16:34 +0100
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-13 08:41 -0800
                Re: mergesort code segfaulting on smallish arrays James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-11-11 11:24 -0800
          Re: mergesort code segfaulting on smallish arrays Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-11-10 05:13 -0800
        Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-09 19:36 +0000
          Re: mergesort code segfaulting on smallish arrays Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-11-10 05:27 -0800
      Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 05:25 +0100
        Re: mergesort code segfaulting on smallish arrays Richard Damon <Richard@Damon-Family.org> - 2019-11-09 11:30 -0500
          Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 17:49 +0100
            Re: mergesort code segfaulting on smallish arrays Richard Damon <Richard@Damon-Family.org> - 2019-11-09 12:21 -0500
              Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 18:53 +0100
                Re: mergesort code segfaulting on smallish arrays Richard Damon <Richard@Damon-Family.org> - 2019-11-09 13:33 -0500
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-09 19:37 +0100
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-09 18:51 +0000
                Re: mergesort code segfaulting on smallish arrays Richard Damon <Richard@Damon-Family.org> - 2019-11-09 14:46 -0500
                Re: mergesort code segfaulting on smallish arrays David Brown <david.brown@hesbynett.no> - 2019-11-10 15:35 +0100
                Re: mergesort code segfaulting on smallish arrays Bart <bc@freeuk.com> - 2019-11-10 14:48 +0000
                Re: mergesort code segfaulting on smallish arrays David Brown <david.brown@hesbynett.no> - 2019-11-10 15:35 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 15:39 +0100
                Re: mergesort code segfaulting on smallish arrays David Brown <david.brown@hesbynett.no> - 2019-11-10 19:54 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 19:55 +0100
                Re: mergesort code segfaulting on smallish arrays David Brown <david.brown@hesbynett.no> - 2019-11-10 21:34 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 21:37 +0100
                Re: mergesort code segfaulting on smallish arrays Robert Wessel <robertwessel2@yahoo.com> - 2019-11-11 11:12 -0600
                Re: mergesort code segfaulting on smallish arrays David Brown <david.brown@hesbynett.no> - 2019-11-10 15:28 +0100
                Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 15:41 +0100
              Re: mergesort code segfaulting on smallish arrays Keith Thompson <kst-u@mib.org> - 2019-11-09 12:47 -0800
              Re: mergesort code segfaulting on smallish arrays David Brown <david.brown@hesbynett.no> - 2019-11-10 15:08 +0100
                Re: mergesort code segfaulting on smallish arrays Keith Thompson <kst-u@mib.org> - 2019-11-10 14:30 -0800
          Re: mergesort code segfaulting on smallish arrays Keith Thompson <kst-u@mib.org> - 2019-11-09 12:43 -0800
            Re: mergesort code segfaulting on smallish arrays Richard Damon <Richard@Damon-Family.org> - 2019-11-09 17:16 -0500
        Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-09 19:27 +0000
          Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 05:55 +0100
            Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-10 16:45 +0000
              Re: mergesort code segfaulting on smallish arrays Bonita Montero <Bonita.Montero@gmail.com> - 2019-11-10 17:53 +0100
                Re: mergesort code segfaulting on smallish arrays Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-11-11 00:56 +0000

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