Re: [Ocaml-lib-devel] Map with set operations over the keys

[Christophe R. <Chr...@un...>]

> 	symdiff x y = sub (union x y) (inter x y)
> or
> 	sub x y = inter x (symdiff x y)
> 
> Of course one can easily define both with only membership
> test and fold.
> 
> Perhaps if the symmetric difference was provided and named
> 
> 	symdiff
> 
> it would be clear that 'diff' was the substraction.
> 
> 
sub and symdiff are better name anyway ...

-- 
Christophe Raffalli
Université de Savoie
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