Re: Proposal: Don't require users to use undefined

Bas van Dijk schrieb:

On Tue, Oct 26, 2010 at 8:12 PM, Bulat Ziganshin wrote:

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I find the use of 'undefined' ugly yu aren't groked lazy evaluation :)

I know that 'sizeOf (undefined :: Word8)' will never evaluate the 'undefined' due to laziness and is completely safe.

It's pretty easy to be too strict accidentally: sizeOf (a,b) = sizeOf a + sizeOf b Instead you have to write sizeOf ~(a,b) = sizeOf a + sizeOf b (Replace (,) with any other data constructor.)