Re: Hayes tester fails

From	"Rod Pemberton" <dont_use_email@xnohavenotit.cnm>
Newsgroups	comp.lang.forth
Subject	Re: Hayes tester fails
Date	2014-01-08 19:53 -0500
Organization	Aioe.org NNTP Server
Message-ID	<op.w9d93lae5zc71u@localhost> (permalink)
References	<lah624$s2s$2@speranza.aioe.org> <2014Jan8.155803@mips.complang.tuwien.ac.at>

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On Wed, 08 Jan 2014 09:58:03 -0500, Anton Ertl  
<anton@mips.complang.tuwien.ac.at> wrote:
> "Ed" <invalid@invalid.com> writes:

>> Put the buggy routine through the Hayes tester and watch it pass.
>
> Most people already know this, but just in case you don't:
>
> "Program testing can be used to show the presence of bugs, but never
> to show their absence!"
>
> http://en.wikiquote.org/wiki/Edsger_W._Dijkstra
>

I like that guy's theories.

Yes, if a bug is absent, it's clearly not present, so testing
for the presence of the bug won't find that the bug is present,
since it clearly hasn't arrived yet.

Rod Pemberton

Thread

Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-08 02:20 +1100
  Re: Hayes tester fails "Alex McDonald" <blog@rivadpm.com> - 2014-01-07 21:15 +0000
  Re: Hayes tester fails "Alex McDonald" <blog@rivadpm.com> - 2014-01-07 21:20 +0000
  Re: Hayes tester fails anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-01-08 14:58 +0000
    Re: Hayes tester fails "Rod Pemberton" <dont_use_email@xnohavenotit.cnm> - 2014-01-08 19:53 -0500
    Re: Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-09 21:49 +1100
      Re: Hayes tester fails anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-01-09 12:57 +0000
        Re: Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-11 16:06 +1100
          Re: Hayes tester fails "Rod Pemberton" <dont_use_email@xnohavenotit.cnm> - 2014-01-11 10:28 -0500
          Re: Hayes tester fails anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-01-13 16:18 +0000
            Re: Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-15 10:29 +1100
              Re: Hayes tester fails "Alex McDonald" <blog@rivadpm.com> - 2014-01-15 00:00 +0000
                Re: Hayes tester fails AKK <akk@nospam.org> - 2014-01-15 02:06 +0100
                Re: Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-19 01:33 +1100
                Re: Hayes tester fails anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-01-18 16:58 +0000
                Re: Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-21 00:09 +1100
                Re: Hayes tester fails "Alex McDonald" <blog@rivadpm.com> - 2014-01-20 14:36 +0000
                Re: Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-25 22:53 +1100
                Re: Hayes tester fails "Alex McDonald" <blog@rivadpm.com> - 2014-01-25 23:21 +0000
                Re: Hayes tester fails anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2014-01-21 14:50 +0000
              Re: Hayes tester fails "Rod Pemberton" <dont_use_email@xnohavenotit.cnm> - 2014-01-15 02:40 -0500
                Re: Hayes tester fails "Elizabeth D. Rather" <erather@forth.com> - 2014-01-14 21:52 -1000
                Re: Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-19 00:10 +1100
              Re: Hayes tester fails Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-01-15 03:28 -0600
      Re: Hayes tester fails "Rod Pemberton" <dont_use_email@xnohavenotit.cnm> - 2014-01-11 10:30 -0500
        Re: Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-13 10:45 +1100
  Re: Hayes tester fails Howerd <howerdo@yahoo.co.uk> - 2014-01-09 02:51 -0800
    Re: Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-09 22:12 +1100
      Re: Hayes tester fails Howerd <howerdo@yahoo.co.uk> - 2014-01-09 06:44 -0800
        Re: Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-11 16:14 +1100
          Re: Hayes tester fails Howerd <howerdo@yahoo.co.uk> - 2014-01-11 02:35 -0800
          Re: Hayes tester fails Coos Haak <chforth@hccnet.nl> - 2014-01-11 13:46 +0100
            Re: Hayes tester fails "Ed" <invalid@invalid.com> - 2014-01-13 11:16 +1100

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