Re: bit numbers in packed arrays of Boolean

[sjw <simon.j.wright@mac.com>]

On Aug 31, 2:40 pm, Yannick Duchêne (Hibou57)
<yannick_duch...@yahoo.fr> wrote:

> A tricky and imaginary example by the way: imagine a clever compiler with  
> clever optimization, which would detect the application mostly access the  
> nth item of the array and far less oftenly access any other items, now let  
> say the target CPU has a special instruction to access bit value at #0  
> (common practice on CISC processor), then it could choose to map this nth  
> item on bit #0.
>
> Do you feel the language would disallow such an optimization ? if it does  
> not, this example shows this is implementation defined.

I think this would be a very bad idea. My first reaction involved
"deserving a good kicking", perhaps that's a little extreme.