Implement the "unum" representation in D ?

[jmh530 via Digitalmars-d]

On Saturday, 11 July 2015 at 03:02:24 UTC, Nick B wrote:
>
> FYI
>
> John Gustafson book is now out:

I was just thinking about overflow (more for my own interest than 
a practical reason). I wouldn't have known about this way to deal 
with it if you hadn't bumped this thread. So thanks, it's 
interesting (not sure if this book will adequately address 
Walter's original concern that it won't really reduce power 
consumption). I also found the discussion of rational numbers 
earlier in the thread interesting.

When I was looking at other ways to handle overflow, I learned 
about a change they made to Python circa 2.3 or 2.4 to handle 
overflow (PEP237). Basically, they take an approach described in 
the presentation in the original post that will cast an int to a 
long if there is an overflow.