[Haskell-cafe] Re: Wikipedia on first-class object

Jonathan Cast jonathanccast at fastmail.fm
Fri Dec 28 18:42:54 EST 2007


On 28 Dec 2007, at 7:15 AM, Cristian Baboi wrote:

> But I guess it won't work because the compiler will optimize it and  
> the call will disappear.
>
> On Fri, 28 Dec 2007 14:58:53 +0200, Cristian Baboi  
> <cristi at ot.onrc.ro> wrote:
>
>> Here is how I want print to be in Haskell
>>
>> print :: (a->b) -> (a->b)
>>
>> with print = id, but the following "side effect":
>>
>> - I want to call the print function today, and get the value  
>> tomorrow.

Sorry, simply couldn't resist:

Put a very long timing loop in the middle.

jcc



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