fixed size integer arithmetic

Paul Leyland paul at
Wed Aug 29 12:16:22 CEST 2007

On Wed, 2007-08-29 at 10:46, Paul Zimmermann wrote:

> Please could you be more specific? What do you expect if the size is fixed to
> one bit, and you compute 1+1?

I think the original spec. was unambiguous on this point.   As I read
it, he's asking for arithmetic in Z/Z_N where N is a fixed power of two.

In the particular case you mention, the arithmetic is over F_2, so:


0*0 = 0*1 = 1*0 = 0
1*1 = 1


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