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Groups > comp.lang.c > #95885

Re: Fair, truly random random number generator

From "Chris M. Thomasson" <invalid@invalid.invalid>
Newsgroups comp.lang.c
Subject Re: Fair, truly random random number generator
Date 2016-11-05 16:50 -0700
Organization n/a
Message-ID <nvlr7p$d5o$1@dont-email.me> (permalink)
References (6 earlier) <e738299c-75b9-4e7b-8ac6-d7e08f93359f@googlegroups.com> <nviqmk$vep$1@dont-email.me> <8fd602e9-d005-4866-9983-c95a3e8e1351@googlegroups.com> <nvlnk3$tab$2@dont-email.me> <66f0eb51-5e9e-47a3-b43d-80391f01afe7@googlegroups.com>

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On 11/5/2016 4:03 PM, Rick C. Hodgin wrote:
> On Saturday, November 5, 2016 at 6:49:10 PM UTC-4, ImperiusDamian wrote:
>> On 2016-11-04 16:32, Rick C. Hodgin wrote:
>>>
>>> I also believe in edit-and-continue, something I call LiveCode, so you can
>>> fix and repeat again and again without the need of recompiling everything,
>>> but only the few lines that failed.  And, when the fix is big enough, then,
>>> and only then, do the full rebuild during debugging.
>>
>> That would definitely be a much more efficient way of coding! I've seen
>> a couple of "live IDEs" online that do this but I'm not sure if they
>> have C or other compiled languages. Mainly I see it done with
>> Javascript, Python or HTML.
>
> Microsoft's Visual Studio 2015 is free for use on open source projects.  It
> has a really nice and advanced edit-and-continue ability which, IIRC, also
> works for 64-bit code, whereas their older products only worked for 32-bit
> code.
>
> Microsoft has had edit-and-continue in their Visual line of developer tools
> since 1998.  Visual Studio's 2015 version also has a really amazing code
> analyzer.  It does static unit testing on your code by assuming branches
> taken, and branches not taken, to see if there are places where you could
> access a NULL pointer, access memory after it was released, etc.

FWIW, I remember, many years ago, debugging a race-infested nest of 
really annoyed hornets using MSVC. I paused all threads, let one resume 
up to a point, paused it, then let another thread resume up to a point. 
Then analyzed the shared data structure, noticed an error, manually 
corrected it, paused the thread. Let another resume, and noticed another 
error in the shared data, and repeated the correction process. I finally 
found the error! IIRC, I posted about it in comp.programming.threads. It 
was very tedious, but edit-and-continue worked nicely in that case. It 
allowed me to run the threads in a sort of lock step fashion. Pretty nice.

:^)

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Fair, truly random random number generator "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-10-28 20:31 +0800
  Re: Fair, truly random random number generator "Osmium" <r124c4u102@comcast.net> - 2016-10-28 07:48 -0500
    Re: Fair, truly random random number generator "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-10-28 21:07 +0800
      Re: Fair, truly random random number generator Richard Heathfield <rjh@cpax.org.uk> - 2016-10-28 14:21 +0100
        Re: Fair, truly random random number generator Gareth Owen <gwowen@gmail.com> - 2016-10-28 16:22 +0100
          Re: Fair, truly random random number generator Richard Heathfield <rjh@cpax.org.uk> - 2016-10-28 16:30 +0100
            Re: Fair, truly random random number generator Gareth Owen <gwowen@gmail.com> - 2016-10-28 16:32 +0100
        Re: Fair, truly random random number generator "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-10-29 23:11 +0800
          Re: Fair, truly random random number generator Richard Heathfield <rjh@cpax.org.uk> - 2016-10-31 11:17 +0000
            Re: Fair, truly random random number generator "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-10-31 20:14 +0800
              Re: Fair, truly random random number generator Melzzzzz <Melzzzzz@zzzzz.com> - 2016-10-31 12:32 +0000
                Re: Fair, truly random random number generator Richard Heathfield <rjh@cpax.org.uk> - 2016-10-31 12:48 +0000
                Re: Fair, truly random random number generator "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-01 15:30 +0800
              Re: Fair, truly random random number generator Richard Heathfield <rjh@cpax.org.uk> - 2016-10-31 12:47 +0000
      Re: Fair, truly random random number generator "Osmium" <r124c4u102@comcast.net> - 2016-10-28 09:32 -0500
  Re: Fair, truly random random number generator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-28 07:14 -0700
    Re: Fair, truly random random number generator "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-10-28 18:07 -0700
      Re: Fair, truly random random number generator "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-01 17:45 -0700
        Re: Fair, truly random random number generator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-01 18:57 -0700
          Re: Fair, truly random random number generator David Brown <david.brown@hesbynett.no> - 2016-11-02 10:06 +0100
            Re: Fair, truly random random number generator "Osmium" <r124c4u102@comcast.net> - 2016-11-02 04:46 -0600
            Re: Fair, truly random random number generator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-02 05:06 -0700
              Re: Fair, truly random random number generator David Brown <david.brown@hesbynett.no> - 2016-11-02 13:43 +0100
                Re: Fair, truly random random number generator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-02 06:02 -0700
                Re: Fair, truly random random number generator David Brown <david.brown@hesbynett.no> - 2016-11-02 16:08 +0100
                Re: Fair, truly random random number generator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-02 08:21 -0700
              Re: Fair, truly random random number generator Mark Storkamp <mstorkamp@yahoo.com> - 2016-11-02 08:20 -0500
          Re: Fair, truly random random number generator "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-03 17:56 -0700
            Re: Fair, truly random random number generator Keith Thompson <kst-u@mib.org> - 2016-11-03 18:16 -0700
              Re: Fair, truly random random number generator "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-03 18:48 -0700
              Re: Fair, truly random random number generator supercat@casperkitty.com - 2016-11-04 09:17 -0700
              Re: Fair, truly random random number generator raltbos@xs4all.nl (Richard Bos) - 2016-11-04 17:59 +0000
                Re: Fair, truly random random number generator Keith Thompson <kst-u@mib.org> - 2016-11-04 11:55 -0700
                Re: Fair, truly random random number generator "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-04 12:43 -0700
                Re: Fair, truly random random number generator "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-04 12:40 -0700
            Re: Fair, truly random random number generator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-04 12:49 -0700
              Re: Fair, truly random random number generator "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-04 13:23 -0700
                Re: Fair, truly random random number generator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-04 13:32 -0700
                Re: Fair, truly random random number generator ImperiusDamian <damianblack.wolf@gmail.com> - 2016-11-05 18:48 -0400
                Re: Fair, truly random random number generator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-05 16:03 -0700
                Re: Fair, truly random random number generator "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-11-05 16:50 -0700
                Re: Fair, truly random random number generator ImperiusDamian <damianblack.wolf@gmail.com> - 2016-11-05 19:52 -0400
                Re: Fair, truly random random number generator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-05 17:06 -0700
    Re: Fair, truly random random number generator "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-10-29 23:13 +0800
      Re: Fair, truly random random number generator Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2016-10-29 12:12 -0400
        Re: Fair, truly random random number generator "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-10-30 00:22 +0800
        Re: Fair, truly random random number generator Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2016-10-29 12:26 -0400
        Re: Fair, truly random random number generator supercat@casperkitty.com - 2016-10-29 09:44 -0700
          Re: Fair, truly random random number generator Tim Rentsch <txr@alumni.caltech.edu> - 2016-11-01 08:13 -0700
            Re: Fair, truly random random number generator supercat@casperkitty.com - 2016-11-01 08:31 -0700
              Re: Fair, truly random random number generator Tim Rentsch <txr@alumni.caltech.edu> - 2016-11-02 12:58 -0700
      Re: Fair, truly random random number generator "James R. Kuyper" <jameskuyper@verizon.net> - 2016-10-29 12:37 -0400
      Re: Fair, truly random random number generator Keith Thompson <kst-u@mib.org> - 2016-10-29 11:57 -0700
      Re: Fair, truly random random number generator David Brown <david.brown@hesbynett.no> - 2016-10-30 17:13 +0100
        Re: Fair, truly random random number generator "Osmium" <r124c4u102@comcast.net> - 2016-10-30 11:07 -0600
          Re: Fair, truly random random number generator supercat@casperkitty.com - 2016-10-30 12:20 -0700
      Re: Fair, truly random random number generator Richard Heathfield <rjh@cpax.org.uk> - 2016-10-31 11:18 +0000
      Re: Fair, truly random random number generator Ed Prochak <edprochak@gmail.com> - 2016-11-03 10:39 -0700
        Re: Fair, truly random random number generator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-03 11:13 -0700
          [OT] gigawatts = gigaseconds correlation? "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-04 02:36 +0800
            Re: [OT] gigawatts = gigaseconds correlation? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-03 12:07 -0700
              Re: [OT] gigawatts = gigaseconds correlation? "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-11-04 12:02 +0800
          Re: Fair, truly random random number generator gazelle@shell.xmission.com (Kenny McCormack) - 2016-11-03 19:56 +0000
          Re: Fair, truly random random number generator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-11-03 16:21 -0700
  Re: Fair, truly random random number generator luser droog <luser.droog@gmail.com> - 2016-10-29 14:49 -0700
    Re: Fair, truly random random number generator jameskuyper@verizon.net - 2016-10-29 15:29 -0700
  Re: Fair, truly random random number generator Quadibloc <jsavard@ecn.ab.ca> - 2016-10-29 19:09 -0700
  Thank you all for the replies! "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-10-31 18:42 +0800

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