[Jprogramming] Third argument

[Zsbán Ambrus]

On Fri, Jul 31, 2009 at 12:07 AM, Raul Miller<rauldmiller at gmail.com> wrote:
> [: is visible at parse time, and ([: u v) can be used to create a different
> kind of derived verb than (w u v) where w, u and v are verbs and w is
> not [:

That can be used as an optimization, but it can't handle the case of
the left tine being a proverb for cap, so the execution of a fork has
to check for that case anyway.

   cap =: [:
   cap2 =: cap
   ([: - -) 5
5
   (cap - -) 5
5
   (cap2 - -) 5
5

Ambrus