Geek asks and answers

Clojure cannot pass function list PersistentList error cannot be passed to clojure.lang.IFn

I have several functions that relate to lists. I have an even function that takes a list parameter and gets even list indices. An odd function does the same, but with odd indices. I also have another function that combines two sorted lists with the name merge-list, which takes two lists as parameters.

The problem with the function I'm writing now: merge-sort.

Here is what I have:

(defn merge-sort [lis]
    (if (empty? (rest lis))
        lis
        (merge-list (merge-sort (odd(lis))) (merge-sort (even(lis))))))))

For some reason, I keep getting an error

java.lang.ClassCastException: clojure.lang.PersistentList cannot be cast to clojure.lang.IFn

I can pass the odd rest lis function as follows (odd(rest lis))(same with even). It works fine, but that clearly doesn't give me the solution I want.

Clojure, . .

+3
2

(odd lis) (even lis), (odd (lis)). , , .

+3

Clojure , .

"FooClass clojure.lang.IFn" , FooClass " " ( ), , .

-. , amalloy, , .

+4

More articles:


All Articles