Talk About Network

Google


Register and Login
Nick
Password
Register create new account Sign up is FREE and you can post replies, new topics, bookmark posts and more!
Recover lost password


Programming > Lisp > Re: Multiple ev...
Latest [ Topics | Posts ] Archive Post A New Topic Post a Reply
<< Topic < Post Post 8 of 21 Topic 13146 of 13402
Post > Topic >>

Re: Multiple evaluation

by rpw3@[EMAIL PROTECTED] (Rob Warnock) Jul 25, 2008 at 09:46 PM

Ari Krupnik  <ari@[EMAIL PROTECTED]
> wrote:
+---------------
| pjb@[EMAIL PROTECTED]
 (Pascal J. Bourguignon) writes:
| > (map-into (make-list 5) (lambda () (random 1.0))) ; consing O(N).
| 
| But it still iterates twice, just doesn't create extra garbage, right?
+---------------

No, it iterates *once* only!

Hint: Look at the (MAP-INTO A #'GENSYM) example in the CLHS.


-Rob

-----
Rob Warnock			<rpw3@[EMAIL PROTECTED]
>
627 26th Avenue			<URL:http://rpw3.org/>
San Mateo, CA 94403		(650)572-2607
 




 21 Posts in Topic:
Multiple evaluation
Ari Krupnik <ari@[EMAI  2008-07-25 10:28:02 
Re: Multiple evaluation
Joost Diepenmaat <joos  2008-07-25 19:35:07 
Re: Multiple evaluation
pjb@[EMAIL PROTECTED] (P  2008-07-25 19:43:21 
Re: Multiple evaluation
Zach Beane <xach@[EMAI  2008-07-25 13:37:31 
Re: Multiple evaluation
pjb@[EMAIL PROTECTED] (P  2008-07-25 19:47:30 
Re: Multiple evaluation
Daniel Janus <przesunm  2008-07-25 18:42:02 
Re: Multiple evaluation
Ari Krupnik <ari@[EMAI  2008-07-25 11:40:07 
Re: Multiple evaluation
rpw3@[EMAIL PROTECTED] (  2008-07-25 21:46:40 
Re: Multiple evaluation
pjb@[EMAIL PROTECTED] (P  2008-07-26 08:08:09 
Re: Multiple evaluation
rpw3@[EMAIL PROTECTED] (  2008-07-26 09:16:31 
Re: Multiple evaluation
"John Thingstad"  2008-07-25 21:37:31 
Re: Multiple evaluation
Sacha <none@[EMAIL PRO  2008-07-25 23:37:17 
Re: Multiple evaluation
tar@[EMAIL PROTECTED] (T  2008-07-25 17:32:13 
Re: Multiple evaluation
Sacha <none@[EMAIL PRO  2008-07-26 04:00:32 
Re: Multiple evaluation
Stephen Compall <s11@[  2008-07-25 20:18:55 
Re: Multiple evaluation
Ari Krupnik <ari@[EMAI  2008-07-25 22:42:16 
Re: Multiple evaluation
pjb@[EMAIL PROTECTED] (P  2008-07-26 08:07:00 
Re: Multiple evaluation
"Dimiter \"malk  2008-07-28 12:41:13 
Re: Multiple evaluation
Rainer Joswig <joswig@  2008-07-28 23:49:54 
Re: Multiple evaluation
Ari Krupnik <ari@[EMAI  2008-07-28 12:42:48 
Re: Multiple evaluation
Kent M Pitman <pitman@  2008-07-28 19:06:12 

Post A Reply:
  Go here to Signup

AddThis Feed Button


About - Advertising - Contact - Frequently Asked Questions - Privacy Policy - Terms of Use - Signup

Contact
tan12V112 Sun Sep 7 7:16:22 CDT 2008.