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Subject: Re: Bizar Question for programmers: very strange behaviour of my engine

Author: J. Wesley Cleveland

Date: 20:12:49 01/16/06

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On January 16, 2006 at 16:16:13, JW de Kort wrote:

>Hi all,
>
>In my engine i want to use the following line:
>
>    !(bfZwart[kol+1]&bfBoven[rij])
>
>In only a few cases this lines crashes my engine. If i change the +1 to any
>other value there is no problem!
>
>Does anybody know were i have to look for to solve this problem? I do not
>understand how a comparison like the above can cause a program to crash.

Cam't you run your engine under a debugger ? Then a crash should interrupt the
program at this line. Then examine the value of those variables and the cause of
the crash should be obvious. If it is not, do a short disassembly and dump the
registers and paste these into a new message and maybe we can help you.



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