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Groups > comp.lang.c > #147852

Re: mergesort code segfaulting on smallish arrays

Subject Re: mergesort code segfaulting on smallish arrays
Newsgroups comp.lang.c
References (7 earlier) <mQjxF.343128$m0L.133320@fx15.am4> <CHnxF.347122$m0L.107679@fx15.am4> <dSCxF.10646$gt2.3810@fx02.iad> <XsExF.89281$JY7.75235@fx18.am4> <4VExF.18870$s93.2595@fx19.iad>
From Bart <bc@freeuk.com>
Message-ID <8GGxF.502085$7ei.160392@fx36.am4> (permalink)
Organization virginmedia.com
Date 2019-11-09 22:00 +0000

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On 09/11/2019 19:59, Richard Damon wrote:
> On 11/9/19 2:29 PM, Bart wrote:
>>
>> This is machine-generated C code: a lot of these are things such as
>> 'unused labels', or things which are well-defined in the source
>> language, but which C has decreed are undefined for reasons of its own.
> 
> C has NOT said these are undefined. Unused Labels are perfectly legal
> constructs in C, so no diagnostic is required, not is undefined behavior
> generated. They are questionable in normal code, so a good
> implementation can be made to generate a WARNING. The fact that is is
> machine generated code says that it should normally be compiled at a
> very low warning level. The only reason to compile machine generated
> code at high warning levels is to work on the generation algorithm and
> perhaps fix problems in it.
> 
> If you want your machine generated code to be able to be compiled at
> higher warning levels without a lot of warnings, than you need to make
> you generation system 'smarted' to not do the things that generate warnings.

The new C generator I did in September did a lot of work to reduce 
warnings to zero on both Windows and Linux when gcc was run like this:

    gcc prog.c

Linux tended to be fussier, mainly because it picked up the mismatch 
between "%lld" and int64_t because int64_t was defined as 'long' on 
Linux. But now printf formats are not used in either generated code, or 
in explicit FFI calls in the original source.

And, generally there are very few warnings with:

    gcc -Wextra prog.c

These are ones I'm not so worried about, because they are largely 
erroneous. Eg:

     void fn(void) {
         int x;

         if (cond)
             x=10;
         else
             error();

         return x;
     }

where it reports that x may be used uninitialised.

Here the error() routine never returns, so it can never get to the 
return statement. This is difficult to both detect and fix in the code 
generator. (Always initialising local variables might do it, but I don't 
want to go that far.)

Anyway, my translator is designed to generate warning-free code with:

     gcc prog.c
     tcc prog.c
     bcc prog.c       (This one is easy as there are never warnings)

clang (which I no longer have), might be harder because last time I used 
it, all these extra warning flags seemed to be turned on by default.

Recommended compilers at present, which are generally available on both 
OSes, are gcc and tcc.

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Thread

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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