On Tue, 2 Sep 2003, Christoph Bauer wrote:
> Sorry, but what are the benefits of these functions over the original
> function without the optional parameter? 

None. I was being facetious, sorry. 

> I need a conversion function conv:'a -> 'b and the default value should be 
> the identity.

There is no suitable default suitable conversion function of that type (think 
about it for a minute and you'll understand), so there is no good way to make 
an optional argument of type ('a -> 'b). 

-- Brian


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