Re: Just for your fun and horror

[Scott Turner]

Matthias Felleisen wrote:
>When a C programmer thinks about the
>'return' type of a C function, he thinks about the value-return half 
>of a return statement's denotation. The other half, the modified store, 
>remains entirely implicit as far as types are concerned. 

Just because the type system of C keeps store implicit, it doesn't
change the match between the meaning of 'return' in the two languages.
The IO monad provides a refined way of typing imperative-style 
functions, including return statements.

If you want to use a return statement in Haskell, you can, and it's called
'return'.

(A reasonable alternative would be for 'return' to have second class
status, as syntactic sugar for 'unit', analgous to otherwise=True).

--
Scott Turner
[EMAIL PROTECTED]       http://www.billygoat.org/pkturner

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