> -----Original Message-----
> From: [EMAIL PROTECTED]
> Sent: den 20 november 2004 14:19
> To: [EMAIL PROTECTED]
> Subject: RE: [Hugs-users] Avoiding use of the stack
>
> G'day all.
>
> Quoting Josef Svenningsson <[EMAIL PROTECTED]>:
>
> > In what sense is it wrong, and in what sense does this example show
> that?
>
> The time that you want to use $! is when you want some argument to some
> function to be strict. Unfortunately, $! and $ have different
> associativities to normal function application, requiring you to introduce
> readability-imparing parentheses if the strict argument is not the last
> one:
>
> testR2' a n = (testR2' $! (a+n)) (n-1)
>
> If $! and $ were both left-associative, you could write this instead:
>
> testR2' a n = testR2' $! (a+n) $ (n-1)
>
Ah, you're quite right of course. This surely must be a bug in the report.
Cheers,
/Josef
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