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From: Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: problem sending data to file
Date: 2 Oct 2003 09:50:06 GMT
Organization: Aachen University of Technology (RWTH)
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Jason Carney <jason DOT carney1 AT btinternet DOT com> wrote:

>  long int *len;
>  *len = 0;

These two lines contain a massive bug.  len is a pointer pointing
nowhere, so you're writing that zero to nowhere.  That's causing
undefined behaviour.

> x is a pointer to a character array, why is printf there?  

From the given input, the only possible answer to that is "because".
Maybe you should ask whoever wrote that code.

Given you've already caused undefined behaviour before, odds are this
is just a side effects.
-- 
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.