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

[Jules Bean]

It won't work because haskell functions can't have side-effects.

I'm not quite sure what you're trying to say here.

Jules


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.
>>
>>
> 
> 
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