Oh, one other thing, although it might actually be slower than 1.3's primitive
goodness:
If you want to keep the unchecked operations, and make them on 32-bit ints,
I've been using macros like this so that the same file can compile with both
1.2 and 1.3:
(defmacro my-unchecked-inc-int [& args]
(if (and (== (*clojure-version* :major) 1)
(== (*clojure-version* :minor) 2))
`(unchecked-inc ~@args)
`(unchecked-inc-int ~@args)))
Then replace 'unchecked-inc' throughout the rest of the code with
my-unchecked-inc-int.
The reason why I don't know whether that is necessarily the best thing to do
for 1.3 is that the default primitive integer type for passing between
functions is long, not int.
Andy
On Mar 13, 2011, at 10:36 AM, Nick Zbinden wrote:
> Hallo all,
>
> I have been looking at the binary-trees in the language shotout.
> http://shootout.alioth.debian.org/u64q/program.php?test=binarytrees&lang=clojure&id=5
>
> I want to make it work with the primitiv support in clojure 1.3 but I
> cant get it to work. Maybe its my misunderstanding in the new primitiv
> support.
>
> Here is my code:
> https://github.com/nickik/IDPA-Programmiersprachen-Benchmarken/blob/master/clojure/src/clojure/binarytrees_me.clj
> (I removed some stuff like unchecked operations for now I can add that
> stuff again later. Its easier to understand that way)
>
> this is basiclly the original:
> https://github.com/nickik/IDPA-Programmiersprachen-Benchmarken/blob/master/clojure/src/clojure/binarytrees.clj
>
> I always get the error:
> error: java.lang.IllegalArgumentException: Unable to resolve
> classname: clojure.core$long@1539d49, compiling:(/home/nick/alltech/
> Allgemein_Programming/IDPA-Programmiersprachen-Benchmarken/clojure/src/
> clojure/binarytrees_me.clj:32)
>
> Do I maybe need to use thes operations like +'?
>
> Any other performance improving tipps would be nice too.
>
>
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