[LLVMdev] Iterator protocols

[Duncan Sands]

> I would imagine that for smaller sequences the Java protocol wins 
> (because of the expense of unwinding), whereas for longer sequences the 
> per-item overhead dominates. The question is, what's the cutoff point 
> likely to be - how expensive is an unwind compared to, say, a regular 
> function call. (I haven't tried to measure it because I'm not yet sure 
> what I am measuring.) I'm just curious if anyone has an opinion on this.

I expect unwinding to be much more expensive than an ordinary function call.

Ciao,

Duncan.