Static argument optimization

[bearophile]

Vladimir Panteleev:
> Often I encounter cases where I have a function taking some arguments, and  
> I'd like for the compiler to generate separate code for the function when  
> some of the arguments are known at compile time.

That's named partial compilation, in this newsgroup I have discussed it a little in the past:
http://www.digitalmars.com/webnews/newsgroups.php?art_group=digitalmars.D&article_id=75312

Bye,
bearophile