A C-like if statement

Steven D'Aprano steve at REMOVETHIScyber.com.au
Fri Feb 24 08:28:30 EST 2006


On Fri, 24 Feb 2006 08:03:49 -0500, Roy Smith wrote:

> In article <pan.2006.02.24.11.07.19.764837 at REMOVETHIScyber.com.au>,
>  Steven D'Aprano <steve at REMOVETHIScyber.com.au> wrote:
> 
>> Side-effects aren't always bad (import, for example, does all its work by
>> side-effect). But they are generally frowned upon, and in functional
>> languages they are verboten.
> 
> How do you do any I/O in a functional language if side effects are 
> verboten?  For that matter, how does a functional program ever stop running?

Fair enough.

But still, ignoring unavoidable cases like writing to a file, the ideal of
functional languages is for side-effects to not exist.



-- 
Steven.




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