On Apr 6, 2009, at 9:02 AM, bgray wrote:
>
> I have a some what (I believe) easy question. Could someone let me
> know what I'm doing wrong? A simplified version of what I'm trying to
> do looks like this:
>
> user=> (def foo (ref 0))
> #'user/foo
> user=> (defn square [x] (* x x))
> #'user/sq
I think what you want is:
(def foo (ref 0))
(defn square [x] (* x x))
(defn square-ref [x] (dosync (ref-set foo (square x
(square-ref 2)
On Mon, Apr 6, 2009 at 3:02 PM, bgray wrote:
>
> I have a some what (I believe) easy question. Could someone let me
> know what I'm doing wrong? A simpli
Alter expects a function that take the current value of the ref it will
alter as the first arg. I think what you want to do is ref-set.
user=> (doc alter)
-
clojure.core/alter
([ref fun & args])
Must be called in a transaction. Sets the in-transaction-value of
ref to:
I have a some what (I believe) easy question. Could someone let me
know what I'm doing wrong? A simplified version of what I'm trying to
do looks like this:
user=> (def foo (ref 0))
#'user/foo
user=> (defn square [x] (* x x))
#'user/square
user=> (defn square-ref [x] (dosync (alter foo square x
