[Haskell-cafe] The Read Class

Misha Aizatulin avatar at hot.ee
Sat Oct 28 18:36:43 EDT 2006

Tiago Veloso wrote:
> I am trying to find out how to work with the Read Class for a school
> project, i need to declare instances of Read for a few data types.
> My problem is that i do not know how to do it, i mean i do not know how
> to build a Read instance, i do know about it for the Show Class.

  if you run ghc with -ddump-deriv, you will see the instances that get
generated when you use "derive".


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