Empty Datatypes in GHC 5?
Thu, 7 Jun 2001 17:14:24 -0700
I just joined this list after finally obtaining an i386 machine primarily
for the purpose of running GHC (I ssh/ftp to it from my Mac).
A quick question: is there an option to allow empty datatypes in GHC
5.00? I couldn't see one in the manual. They are useful for type
parameterisation, for instance:
data Succ n;
Unfortunately this is contrary to the Haskell Report. Nevertheless, Hugs
allows it. But GHC, apparently, does not.
Ashley Yakeley, Seattle WA