instead of using binding and eval, you can generate a (fn ) form, eval
it, keep the result function stuffed away somewhere and apply it
instead of calling eval all the time

On Fri, Jan 23, 2009 at 1:10 PM, Zak Wilson <zak.wil...@gmail.com> wrote:
>
> It does seem like a legitimate use for eval, at least at first glance.
> The biggest problem is that using eval this way is really slow when
> each rule is being tested on hundreds of inputs.
>
> Interesting alternative, Konrad. I can probably take advantage of the
> fact that all of the functions I'm calling (unchecked math and bitwise
> operators) take exactly two arguments. I might give something like
> that a try. I'd rather not though, if I can avoid it.
>
> It seems like there ought to be a way to make a function out of a list
> of symbols that would be a valid function body and then call it
> repeatedly. I was playing around with that approach at first, but
> never managed to get it right. I strongly suspect creating a function
> once and calling it 400 times will be faster than calling eval 400
> times.
> >
>



-- 
And what is good, Phaedrus,
And what is not good—
Need we ask anyone to tell us these things?

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