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[Caml-list] Polymorphism and the "for" loop
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Date: -- (:)
From: skaller <skaller@u...>
Subject: Re: [Caml-list] Polymorphism and the "for" loop
On Fri, 2004-10-22 at 12:22, Robert M. Solovay wrote:
> How does one define a function f of type int -> void? I looked in the
> OCaml manual and couldn't find any reference to "void". {It is, of course,
> a familiar concept in C.}

That's right. Ocaml has no void type. I consider that a bug.
Briefly, it was possible to define one using polymorphic variants:

	type void = []

however that feature was removed. In any case that would
not be enough, since many standard functions would still
return the wrong type.

John Skaller,
voice: 061-2-9660-0850, 
snail: PO BOX 401 Glebe NSW 2037 Australia
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