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

Author: JW de Kort

Date: 03:36:20 01/17/06

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On January 16, 2006 at 20:13:19, Robert Hyatt wrote:

>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.
>>
>>regards
>>Jan Willem
>
>also "&" is the bitwise AND operator I assume you understand?  So you are ANDing
>two values, and the result should be zero to satisfy that condition...
>
>How are bfZwart and bfBoven declared???

That is correct.


unsigned char bfZwart [10]
bfBoven unsigned char [8]

This code is part of the passer detection routine.






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