Re: hypothesis: always computer bugs!

From: Jens Panse <>
Date: Mon, 28 Jan 2002 16:25:31 +0100
Message-ID: <>

Imagine, anybody overrode the library with the printf-function with a function that perhaps deletes your harddisk. Your "hello world" will work, but the results are not the ones you expected.

another thing: to proof your software is free of errors is about equivalent to the proof of a mathematical theorems. Mathematical theorems can only by true with a factor of probability. Pytagoras theorem was proved a million times in schools and may be correct, so expect I. But the proof of many theorems is so complicated that only a few people are able to understand this. And if there is an error within the 50 pages of the proof, who can find this. An error in a proof of the "map coloring" (in german Vierfarbenproblem) an error was found after some years. And as far as I know this isn't proved analytical so far, only by means of computer. This means this problem can only be true if the computer program had no error...

Jens Panse

John Mianowski schrieb:

> What's the bug in "Hello world!"? I haven't found it yet.
> JM
> ddcone1a <> wrote in message
> news:HSQ18.379555$
> > Hypothesis:
> >
> > Software and computer programs are never
> > error free. There are unexpected, minute variations that
> > occur over time that can degrade a computer program's expected results.
> > Digital logic may appear to predominate, but
> > fuzzy logic is the norm.
> > Please express your opinion to accept or
> > refute this hypothesis.
> >
> > TIA, DD
> >
> >
> >

-[ ]-/\-( )--------------------EasternGraphics-----

Jens Panse
phone: +49 3677 678267
Received on Mon Jan 28 2002 - 16:25:31 CET

Original text of this message