From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3C7CCF42.C052DD9F@acm.org> From: Graham Gallagher MIME-Version: 1.0 To: 9fans@cse.psu.edu Subject: Re: [9fans] GUI toolkit for Plan 9 References: <87heo4ylg9.fsf@becket.becket.net> <20020227122932.M26250@cackle.proxima.alt.za> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Date: Wed, 27 Feb 2002 23:21:22 +1100 Topicbox-Message-UUID: 5822955e-eaca-11e9-9e20-41e7f4b1d025 Lucio De Re wrote: > > That's being intentionally obtuse. Adding code to a computer program > increases the probability of its being incorrect. Prove me wrong. Science of Programming, David Gries, p168 "Doug McIlroy (Bell Laboratories) disagrees with this argument, claiming that correct programs *are* made from incorrect parts. Telephone control programs, for example, are more than half audit code, whose business is to recover from unintended states, and the audit code has been known to mask software as well as hardware errors."