On Mon, 2004-03-22 at 09:35, Michael Vanier wrote:

> Is the code for Vyper still available?

No, it was deleted from Sourceforge and I have no copy.

> Also, is there really any significant speed difference between polymorphic
> variants and regular variants?  

It is hard to say, but I would tend to ignore the performance
issue, at least at first. For some types such as:

	'a option

where you have a

	match x with Some y -> ... | None 

inside a tight loop there may be a small difference.
I haven't done any serious performance tests though.

> How would this compare to using exceptions
> as an extensible variant type?

I thought exceptions were just a weak form of
polymorhic variant.

-- 
John Skaller, mailto:skaller@users.sf.net
voice: 061-2-9660-0850, 
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