diff options
| author | Rich Hickey <richhickey@gmail.com> | 2009-02-11 02:53:36 +0000 |
|---|---|---|
| committer | Rich Hickey <richhickey@gmail.com> | 2009-02-11 02:53:36 +0000 |
| commit | f5ebf8fee9420b79cca1f74a7f2cd7d9cb7ca7ad (patch) | |
| tree | 0de69b94ac4ac3ce3c80837fcf0a707f5e32eec9 /src/clj | |
| parent | fdd42d25f842b610f3eaacb117b3223743a7fb08 (diff) | |
added Counted interface and counted? predicate
implement stack/heap safe count in RT
stack-safe count in ASeq/Cons, patch from Chouser
Diffstat (limited to 'src/clj')
| -rw-r--r-- | src/clj/clojure/core.clj | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/clj/clojure/core.clj b/src/clj/clojure/core.clj index e68f7c3b..09ff3acb 100644 --- a/src/clj/clojure/core.clj +++ b/src/clj/clojure/core.clj @@ -3713,6 +3713,10 @@ "Returns true if coll implements Sorted" [coll] (instance? clojure.lang.Sorted coll)) +(defn counted? + "Returns true if coll implements count in constant time" + [coll] (instance? clojure.lang.Counted coll)) + (defn reversible? "Returns true if coll implements Reversible" [coll] (instance? clojure.lang.Reversible coll)) |