What about recur <http://clojure.org/special_forms#recur>? 

It's a special form used for tail call optimizations.

Juan

On Monday, December 17, 2012 1:32:31 PM UTC-3, bruce li wrote:
>
> Hello, everyone.
>
> I'm currently trying to model an automata using multi-method. So in my 
> code, I have something like:
>
> (defmethod trans :state
>      [state]
>      ; .......
>      (trans ......))))
>
> In the last line, the trans will be called with some different state.
>
> However, it seems that such call still consumes stack and I quickly come 
> to a stack overflow error when the states are reached multiple times.
>
> I'm wondering if there is some ways to optimize the code.
>
> Thanks!
>

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