Saturating integer arithmetic

[ketmar via Digitalmars-d]

On Sunday, 26 June 2016 at 13:59:03 UTC, Andrei Alexandrescu 
wrote:
> See the recent thread "DbI checked integral". Saturation is a 
> direct goal, and you should be able to optimize operations for 
> each type by defining relatively small hooks.

alas, it is completely inappropriate for any computation-heavy 
task. even if dmd inliner will do some miracle and will inline 
some calls.