How to define an arbitrary arity function in Haskell, which includes an arity of 0?

You may want to have a look at the PrintfType instances. It's only because of them that I was able to provide an answer.

Hmm... I feel stupid now! How do I delete an SO question? – Dingfeng Quek Jul 11 at 5:30 2 You don't.

This question may be useful for other people. – hammar Jul 11 at 6:06 Another useful package to look at is quickcheck. It also provides functions with variadic arguments.

– Masse Jul 11 at 7:08.

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