Re: [ANN] Lua 5.3.0 (work2) now available

[Roberto Ierusalimschy <roberto@...>]

>  Let’s be clear, arithmetic shift is a useful tool as a low-level
>  operation for more than just shorthand division — this is the
>  reason it exists as a basic operation in every mainstream CPU
>  architecture. I’ve used it over the years for the signum function
>  (where is works very well indeed) optimized bit-counting etc etc. It
>  should be noted that almost all these uses are where performance is
>  hyper-critical.

Just for curiosity, do you remember those techniques?

-- Roberto