Bob Blick wrote:
> On Tue, 30 Mar 2010 14:38:34 +1300, "Russell McMahon" said:
>   
>> I've read what the others said, and if the following was the case
>> you'd expect it to have been said. This is somewhat implicit in at
>> least one reply.
>>
>> As
>>        foo+bar
>>
>> is capable of overflowing an 8 bit word, then at least bat needs to be
>> int for safety.
>>     
>
> Right, except if bat is a checksum and it's an unsigned char because you
> designed it that way :(
>
> So much for C letting you shoot yourself in the foot if you so choose.
>
> Actually I do understand the ANSI rules, I just forgot the ways HiTech
> decides to apply them or forget them, and when they wrote my old manual
> they hadn't written that part yet.
>
> Cheers,
>
> Bob
>
>   
if in doubt...
in all languages and projects
If it's not the same type cast or explicitly convert. letting the 
compiler do it and making assumptions will bite you eventually. What if  
you use a different compiler or want to translate to another language. 
If your compiler has a "warnings" feature for automatic promotion or 
truncation turn it on.

--
Mike aka Watty.

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