John Temples wrote:

>>> Function pointers ...
>>
>> They kind of work (with HiTech compilers PICC/PICC18), but they are limited
>> in their functionality. AFAIK, no two pointers may refer to functions with
>> the same "signature".
> 
> In general that's not true; you only get in trouble if you use the
> pointers in such a way that the linker can't tell if you're trying to
> be recursive or not (function pointers calling functions that call
> through function pointers).  I've never run across that limitation in
> real-world usage of using multiple pointers pointing at functions with
> not just the same signature, but the same type.

Last time I used them I ran exactly into that: the compiler was thinking
"uh-oh recursive" when there was nothing recursive. Since it is not (to my
knowledge) documented what the conditions are under which they work and
under which not, I thought that I'd better do it without them. I don't like
having to "experiment" with a compiler to find out what structures work... 

Gerhard

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