you are declaring the functions return doubles, but in fact returning
functions or doubles

On Tue, Oct 16, 2012 at 11:06 AM, Jim - FooBar(); <jimpil1...@gmail.com> wrote:
> Hi everyone,
>
> I'm pretty sure i'm using trampoline the right way but still I get this
> exception:
>
> ClassCastException Clondie24.lib.search$search$minimize__3075$fn__3076
> cannot be cast to java.lang.Number
> Clondie24.lib.search/search/minimize--3075 (search.clj:47)
>
> here is the code:
>
> (defn search "The recursive bit of the min-max algorithm."
> [eval-fn tree depth]
> (letfn [(minimize ^double [tree d] (if (zero? d) (eval-fn (:root tree)
> (:direction tree))
>                             #(r/reduce my-min
>                                   (r/map (fn [child] (maximize (:tree child)
> (dec d))) (:children tree)))))
>         (maximize ^double [tree d] (if (zero? d) (eval-fn (:root tree)
> (:direction tree))
>                             #(r/reduce my-max
>                                    (r/map (fn [child] (minimize (:tree
> child) (dec d))) (:children tree)))))]
> (trampoline minimize tree (int depth))))
>
> Can anyone shine some light? Is it something that has to do with reducers?
>
> Jim
>
> ps: it works fine without trampoline and '#' behind 'r/reduce'.
>
>
>
>
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