Tom Hicks writes:
> I can't seem to do this with the 'inc' function:
>
> user=> (binding [inc (fn [y] (+ 2 y))] (inc 44))
> 45
>
> Why doesn't this work?
See this thread:
http://groups.google.com/group/clojure/browse_thread/thread/d772e114e50aace6
--
You received this message because you are
> Actually, I think shadowing core functions is not a great idea
Quite so! Common Lisp expressly prohibits this stuff for the COMMON-
LISP package.
> but I wanted to understand the principles involved here. Thanks
> again for your rapid help.
My pleasure. Happy Christmas!
--
You received this
On Dec 24, 6:01 pm, Richard Newman wrote:
> > but, I can't seem to do this with the 'inc' function:
>
> > user=> (binding [inc (fn [y] (+ 2 y))] (inc 44))
> > 45
>
> > Why doesn't this work?
>
> Because inc is inlined, and thus isn't mentioned when your binding
> occurs.
Thanks Richardthat'
> but, I can't seem to do this with the 'inc' function:
>
> user=> (binding [inc (fn [y] (+ 2 y))] (inc 44))
> 45
>
> Why doesn't this work?
Because inc is inlined, and thus isn't mentioned when your binding
occurs.
(defn inc
"Returns a number one greater than num."
{:inline (fn [x] `(. c
On a related note, can someone explain the following...
I can define a function 'p1':
user=> (defn p1 [x] (+ 1 x))
#'user/p1
user=> (p1 44)
45
and then shadow it within the binding construct:
user=> (binding [p1 (fn [y] (+ 2 y))] (p1 44))
46
but, I can't seem to do this with the 'inc' function
On Dec 19, 2009, at 5:23 PM, Stefan Kamphausen wrote:
> 1. Is my explanation correct?
It is. The binding form operates on the var, it doesn't affect name resolution
within the binding form's body. *val* within the body of the binding still
resolves to the let-bound local. While *val* is shadow
