sorted-map-by issue?

[dennis zhuang]

user=> (sorted-map-by (constantly 1) :b 1 :a 2)
{:b 1, :a 2}
user=> (:a (sorted-map-by (constantly 1) :b 1 :a 2))
nil
user=> (keys (sorted-map-by (constantly 1) :b 1 :a 2))
(:b :a)
user=> (count (sorted-map-by (constantly 1) :b 1 :a 2))
2
user=> (:a (sorted-map-by (constantly 1) :b 1 :a 2))
nil

It looks so strange.The result map has keys :a and :b,but i can't get their
values.
Why? I try to hack the code,but i can't find the reason.


-- 
庄晓丹
Email:        killme2...@gmail.com xzhu...@avos.com
Site:           http://fnil.net
Twitter:      @killme2008

-- 
-- 
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your 
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
--- 
You received this message because you are subscribed to the Google Groups 
"Clojure" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to clojure+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.