Is there a good lib out there to handle large integer of know size ?

[Nicholas Wilson via Digitalmars-d]

On Saturday, 10 June 2017 at 19:28:30 UTC, Era Scarecrow wrote:
> On Saturday, 9 January 2016 at 20:28:26 UTC, Andrei 
> Alexandrescu wrote:
>> Who can champion ONE fixed large integer library for Phobos? 
>> -- Andrei
>
>  Got a possible one. My implementation is heavy on assembly 
> language to take advantage of x86 features (like the carry 
> flag, and giving you 64 & 128bit inputs/results). Still 
> building it, but it's promising, mostly got cleanup on it to do 
> and more unittests.

You should be able to use the overflow intrinsics to similar 
effect