[Haskell-cafe] difference between class context and deriving

Henning Thielemann lemming at henning-thielemann.de
Tue Aug 2 16:51:46 CEST 2011

On Tue, 2 Aug 2011, Patrick Browne wrote:

> What is the difference between using a class context and deriving in
> data type declaration?
> Are there certain situations in which one or the other is preferred?
> data Eq a => Set1 a = NilSet1 | ConsSet1 a (Set1 a)

Note that these contexts might get removed from the language:

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