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Re: mergesort code segfaulting on smallish arrays

Subject Re: mergesort code segfaulting on smallish arrays
Newsgroups comp.lang.c
References (1 earlier) <0ee77699-6964-4782-928b-5e5cdfc714db@googlegroups.com> <1JXwF.50019$kt1.13739@fx46.iad> <396da436-1cc5-4294-b284-1262c1846e22@googlegroups.com> <qq3rrh$3h3$2@news.albasani.net> <CYhxF.122585$xo.86993@fx33.am4>
From DFS <nospam@dfs.com>
Message-ID <hhixF.8187$gt2.7322@fx02.iad> (permalink)
Organization blocknews - www.blocknews.net
Date 2019-11-08 13:15 -0500

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On 11/8/2019 12:53 PM, Bart wrote:
> On 08/11/2019 13:50, Bonita Montero wrote:
>>>> and that did it.
>>> You also need to free the arrays, or you get a memory leak.
>>
>>> You should also check for null, though on a modern system it is very
>>> unlikely that malloc will refuse to give you a sane amount of memory.
>>
>> DFS is light-years distant from writing production-quality code.
>> I think he will never get there.
> 
> I wrote a merge-sort in my dynamic language 


Pretty freakin' cool that you wrote your own language!

Do you have a name for it?

Is it feature-complete, or still a work in progress?





> based on DFS's C code. It 
> worked first time.
> 
> Doing that from your C++ would have been impossible as I couldn't make 
> head nor tail of it.
> 
> The speed of it (considering the code is unoptimised, and the 
> interpreter is built unoptimised) isn't too bad either:
> 
> Time to sort 10 million random integers:
> 
>    Interpreted:     33.7 seconds     (here 64-bit not 32-bit ints)

About python speed, I would guess.


>    Your C++:         1.6 seconds     (using g++ -O3)
>    Your C++:        15.6 seconds     (using g++ -O0)
>    DFS C:            3.4 seconds     (using gcc -O3)
>    DFS C:            6.5 seconds     (using gcc -O0)
> 
> That 15.6 seconds figure is interesting: without optimising (and 
> presumably reducing a huge amount of boilerplate code), the native-code 
> C++ is barely double the speed of interpreted byte-code! And here all 
> the action happens in byte-code too, not in some library.
> 
> -------------------------------------------------------------------
> BTW here is the script version of algorithm. Compare with your C++. This 
> mergesort will also sort lists of strings or floats with no changes at all.
> ------------------------------------------------

This is your actual language?  I wrote a few SAS procs back in the day.


> proc start=
>      N:=10 million
>      a:=()
> 
>      to N do
>          a append:=random(0)
>      od
> 
>      mergesort(a)
> 
>      println =issorted(a)
> end
> 
> proc mergesort(a, ?l, ?r) =
>      if l.isvoid then (l,r):=a.bounds fi
> 
>      if l<r then
>          m := l+(r-l)%2      # int divide
>          mergesort(a, l, m)
>          mergesort(a, m+1, r)
>          merge(a, l, m, r)
>      fi
> end
> 
> proc merge(a, l, m, r) =
> 
>      b ::= a[l..m]            # deep copy
>      c ::= a[m+1..r]
> 
>      i:=j:=1
>      k:=0
> 
>      while i<=b.upb and j<=c.upb do
>          if b[i] <= c[j] then
>              a[l+k] := b[i]
>              ++i
>          else
>              a[l+k] := c[j]
>              ++j
>          fi
>          ++k
>      od
> 
>      while i<=b.upb do a[l+k] := b[i]; ++k; ++i od
>      while j<=c.upb do a[l+k] := c[j]; ++k; ++j od
> end
> 
> function issorted(a)=
>      for i:=a.lwb to a.upb-1 do
>          if a[i]>a[i+1] then return 0 fi
>      od
> 
>      return 1
> end

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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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