Re: bit.lshift and performance - luabitop v.s. lua-5.2.0-work4

[Enrico Colombini <erix@...>]

On 13/10/2010 12.05, Mike Pall wrote:
> But you do realize that e.g. an FFT written in Lua is quite
> competitive with C code when using LuaJIT? So if you're writing
> something from scratch, why would you insist on _not_ writing it
> in Lua? I'd really like to understand this sentiment.

I really hope to be able to use Lua for such low-level work.

Of course that would require an efficient, portable and fully 
predictable bit ops library. I really hope we won't have to cope with 
conflicting implementations.
By the way, not being able to compile to JIT would seriously detract 
from the usefulness of the library.

--
  Enrico