A C-like if statement

[Diez B. Roggisch]

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?

Using Monads. Which basically starts carrying around explicit state in an
implicit manner. But that is restricted to very few, specific portions of
the program. 

Diez